Salut la compagnie
depuis la dernier fois que j'ai mis ajours, Fedora ne demare plus (en fait si, si je selection une autre entree a l'ecran de selection de grub)
J'ai d'abord pense que c'etait un probleme materiel car fedora est installe sur un macbook. Mais j'ai mis a jours le desktop un un autre laptop et meme probleme.
[FAILED] Failed to start rule-based r for Device Events and Files
[FAILED] Failed to start rule-based manager for Device Events and Files
[FAILED] Failed to start rule-based manager for Device Events and Files
[FAILED] Failed to start rule-based manager for Device Events and Files
apres 2 mins d'attente: 
[color=#ff9933]Warning: /dev/disk/by-uuid/f97........55f does not exist[/color]
Generating "/run/initramfs/rdsosreport.txt"
...
voici l'entree grub qui pose probleme 
Fedora (5.9.11-200.fc33.x86_64) 33 (Workstation Edition)
pour l'instant je boot sur le 5.9.10

Merci de votre temps
Depuis le kernel qui fonctionne, que retourne 
$ systemctl
On dirait que les services udev ne démarrent pas.

Edit : Complément information
Merci de la reactivite.
voila:
  UNIT                                                                                                     LOAD   ACTIVE SUB       DESCRIPTION                                                                                                    
  proc-sys-fs-binfmt_misc.automount                                                                        loaded active waiting   Arbitrary Executable File Formats File System Automount Point                                                  
  sys-devices-LNXSYSTM:00-LNXSYBUS:00-PNP0A08:00-device:16-ACPI0008:00-iio:device0.device                  loaded active plugged   /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:16/ACPI0008:00/iio:device0                              
  sys-devices-pci0000:00-0000:00:02.0-backlight-acpi_video0.device                                         loaded active plugged   /sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0                                                     
  sys-devices-pci0000:00-0000:00:02.0-drm-card0-card0\x2deDP\x2d1-intel_backlight.device                   loaded active plugged   /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight                                     
  sys-devices-pci0000:00-0000:00:1a.7-usb1-1\x2d1-1\x2d1.1-1\x2d1.1.3-1\x2d1.1.3:1.0-bluetooth-hci0.device loaded active plugged   /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-1/1-1.1/1-1.1.3/1-1.1.3:1.0/bluetooth/hci0                         
  sys-devices-pci0000:00-0000:00:1b.0-sound-card0.device                                                   loaded active plugged   6 Series/C200 Series Chipset Family High Definition Audio Controller (Apple MacBookPro8,2 [Core i7, 15", 2011])
  sys-devices-pci0000:00-0000:00:1c.1-0000:02:00.0-bcma0:1-net-wlp2s0b1.device                             loaded active plugged   BCM43224 802.11a/b/g/n (AirPort Extreme)                                                                       
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda1.device                 loaded active plugged   APPLE_SSD_TS128C 1                                                                                             
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda2.device                 loaded active plugged   APPLE_SSD_TS128C Linux_HFS+_ESP                                                                                
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda3.device                 loaded active plugged   APPLE_SSD_TS128C 3                                                                                             
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda-sda4.device                 loaded active plugged   APPLE_SSD_TS128C fedora_localhost-live                                                                         
  sys-devices-pci0000:00-0000:00:1f.2-ata1-host0-target0:0:0-0:0:0:0-block-sda.device                      loaded active plugged   APPLE_SSD_TS128C                                                                                               
  sys-devices-platform-applesmc.768-leds-smc::kbd_backlight.device                                         loaded active plugged   /sys/devices/platform/applesmc.768/leds/smc::kbd_backlight                                                     
  sys-devices-platform-serial8250-tty-ttyS0.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS0                                                                     
  sys-devices-platform-serial8250-tty-ttyS1.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS1                                                                     
  sys-devices-platform-serial8250-tty-ttyS10.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS10                                                                    
  sys-devices-platform-serial8250-tty-ttyS11.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS11                                                                    
  sys-devices-platform-serial8250-tty-ttyS12.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS12                                                                    
  sys-devices-platform-serial8250-tty-ttyS13.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS13                                                                    
  sys-devices-platform-serial8250-tty-ttyS14.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS14                                                                    
  sys-devices-platform-serial8250-tty-ttyS15.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS15                                                                    
  sys-devices-platform-serial8250-tty-ttyS16.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS16                                                                    
  sys-devices-platform-serial8250-tty-ttyS17.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS17                                                                    
  sys-devices-platform-serial8250-tty-ttyS18.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS18                                                                    
  sys-devices-platform-serial8250-tty-ttyS19.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS19                                                                    
  sys-devices-platform-serial8250-tty-ttyS2.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS2                                                                     
  sys-devices-platform-serial8250-tty-ttyS20.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS20                                                                    
  sys-devices-platform-serial8250-tty-ttyS21.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS21                                                                    
  sys-devices-platform-serial8250-tty-ttyS22.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS22                                                                    
  sys-devices-platform-serial8250-tty-ttyS23.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS23                                                                    
  sys-devices-platform-serial8250-tty-ttyS24.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS24                                                                    
  sys-devices-platform-serial8250-tty-ttyS25.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS25                                                                    
  sys-devices-platform-serial8250-tty-ttyS26.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS26                                                                    
  sys-devices-platform-serial8250-tty-ttyS27.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS27                                                                    
  sys-devices-platform-serial8250-tty-ttyS28.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS28                                                                    
  sys-devices-platform-serial8250-tty-ttyS29.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS29                                                                    
  sys-devices-platform-serial8250-tty-ttyS3.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS3                                                                     
  sys-devices-platform-serial8250-tty-ttyS30.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS30                                                                    
  sys-devices-platform-serial8250-tty-ttyS31.device                                                        loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS31                                                                    
  sys-devices-platform-serial8250-tty-ttyS4.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS4                                                                     
  sys-devices-platform-serial8250-tty-ttyS5.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS5                                                                     
  sys-devices-platform-serial8250-tty-ttyS6.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS6                                                                     
  sys-devices-platform-serial8250-tty-ttyS7.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS7                                                                     
  sys-devices-platform-serial8250-tty-ttyS8.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS8                                                                     
  sys-devices-platform-serial8250-tty-ttyS9.device                                                         loaded active plugged   /sys/devices/platform/serial8250/tty/ttyS9                                                                     
  sys-devices-virtual-block-zram0.device                                                                   loaded active plugged   /sys/devices/virtual/block/zram0                                                                               
  sys-devices-virtual-misc-rfkill.device                                                                   loaded active plugged   /sys/devices/virtual/misc/rfkill                                                                               
  sys-devices-virtual-net-virbr0.device                                                                    loaded active plugged   /sys/devices/virtual/net/virbr0                                                                                
  sys-devices-virtual-net-virbr0\x2dnic.device                                                             loaded active plugged   /sys/devices/virtual/net/virbr0-nic                                                                            
  sys-module-configfs.device                                                                               loaded active plugged   /sys/module/configfs                                                                                           
  sys-module-fuse.device                                                                                   loaded active plugged   /sys/module/fuse                                                                                               
  sys-subsystem-bluetooth-devices-hci0.device                                                              loaded active plugged   /sys/subsystem/bluetooth/devices/hci0                                                                          
  sys-subsystem-net-devices-virbr0.device                                                                  loaded active plugged   /sys/subsystem/net/devices/virbr0                                                                              
  sys-subsystem-net-devices-virbr0\x2dnic.device                                                           loaded active plugged   /sys/subsystem/net/devices/virbr0-nic                                                                          
  sys-subsystem-net-devices-wlp2s0b1.device                                                                loaded active plugged   BCM43224 802.11a/b/g/n (AirPort Extreme)                                                                       
  -.mount                                                                                                  loaded active mounted   Root Mount                                                                                                     
  boot-efi.mount                                                                                           loaded active mounted   /boot/efi                                                                                                      
  boot.mount                                                                                               loaded active mounted   /boot                                                                                                          
  dev-hugepages.mount                                                                                      loaded active mounted   Huge Pages File System                                                                                         
  dev-mqueue.mount                                                                                         loaded active mounted   POSIX Message Queue File System                                                                                
  home.mount                                                                                               loaded active mounted   /home                                                                                                          
  run-user-1000-doc.mount                                                                                  loaded active mounted   /run/user/1000/doc                                                                                             
  run-user-1000-gvfs.mount                                                                                 loaded active mounted   /run/user/1000/gvfs                                                                                            
  run-user-1000.mount                                                                                      loaded active mounted   /run/user/1000                                                                                                 
  sys-fs-fuse-connections.mount                                                                            loaded active mounted   FUSE Control File System                                                                                       
  sys-kernel-config.mount                                                                                  loaded active mounted   Kernel Configuration File System                                                                               
  sys-kernel-debug.mount                                                                                   loaded active mounted   Kernel Debug File System                                                                                       
  sys-kernel-tracing.mount                                                                                 loaded active mounted   Kernel Trace File System                                                                                       
  tmp.mount                                                                                                loaded active mounted   Temporary Directory (/tmp)                                                                                     
  var-lib-nfs-rpc_pipefs.mount                                                                             loaded active mounted   RPC Pipe File System                                                                                           
  cups.path                                                                                                loaded active running   CUPS Scheduler                                                                                                 
  systemd-ask-password-plymouth.path                                                                       loaded active waiting   Forward Password Requests to Plymouth Directory Watch                                                          
  systemd-ask-password-wall.path                                                                           loaded active waiting   Forward Password Requests to Wall Directory Watch                                                              
  init.scope                                                                                               loaded active running   System and Service Manager                                                                                     
  session-2.scope                                                                                          loaded active running   Session 2 of user lilington                                                                                    
  abrt-journal-core.service                                                                                loaded active running   Creates ABRT problems from coredumpctl messages                                                                
  abrt-oops.service                                                                                        loaded active running   ABRT kernel log watcher                                                                                        
  abrt-xorg.service                                                                                        loaded active running   ABRT Xorg log watcher                                                                                          
  abrtd.service                                                                                            loaded active running   ABRT Automated Bug Reporting Tool                                                                              
  accounts-daemon.service                                                                                  loaded active running   Accounts Service                                                                                               
  alsa-state.service                                                                                       loaded active running   Manage Sound Card State (restore and store)                                                                    
  atd.service                                                                                              loaded active running   Deferred execution scheduler                                                                                   
  auditd.service                                                                                           loaded active running   Security Auditing Service                                                                                      
  avahi-daemon.service                                                                                     loaded active running   Avahi mDNS/DNS-SD Stack                                                                                        
  bluetooth.service                                                                                        loaded active running   Bluetooth service                                                                                              
  chronyd.service                                                                                          loaded active running   NTP client/server                                                                                              
  colord.service                                                                                           loaded active running   Manage, Install and Generate Color Profiles                                                                    
  crond.service                                                                                            loaded active running   Command Scheduler                                                                                              
  cups.service                                                                                             loaded active running   CUPS Scheduler                                                                                                 
  dbus-:1.15-org.freedesktop.problems@0.service                                                            loaded active running   dbus-:1.15-org.freedesktop.problems@0.service                                                                  
  dbus-broker.service                                                                                      loaded active running   D-Bus System Message Bus                                                                                       
  dnsmasq.service                                                                                          loaded active running   DNS caching server.                                                                                            
  dracut-shutdown.service                                                                                  loaded active exited    Restore /run/initramfs on shutdown                                                                             
  earlyoom.service                                                                                         loaded active running   Early OOM Daemon                                                                                               
  firewalld.service                                                                                        loaded active running   firewalld - dynamic firewall daemon                                                                            
  fprintd.service                                                                                          loaded active running   Fingerprint Authentication Daemon                                                                              
  gdm.service                                                                                              loaded active running   GNOME Display Manager                                                                                          
  geoclue.service                                                                                          loaded active running   Location Lookup Service                                                                                        
  gssproxy.service                                                                                         loaded active running   GSSAPI Proxy Daemon                                                                                            
  iio-sensor-proxy.service                                                                                 loaded active running   IIO Sensor Proxy service                                                                                       
  import-state.service                                                                                     loaded active exited    Import network configuration from initramfs                                                                    
  irqbalance.service                                                                                       loaded active running   irqbalance daemon                                                                                              
  iscsi-shutdown.service                                                                                   loaded active exited    Logout off all iSCSI sessions on shutdown                                                                      
  kmod-static-nodes.service                                                                                loaded active exited    Create list of static device nodes for the current kernel                                                      
  livesys-late.service                                                                                     loaded active exited    SYSV: Late init script for live image.                                                                         
  livesys.service                                                                                          loaded active exited    LSB: Init script for live image.                                                                               
  low-memory-monitor.service                                                                               loaded active running   Low Memory Monitor                                                                                             
  lvm2-monitor.service                                                                                     loaded active exited    Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling                                  
  mcelog.service                                                                                           loaded active running   Machine Check Exception Logging Daemon                                                                         
  ModemManager.service                                                                                     loaded active running   Modem Manager                                                                                                  
  NetworkManager-wait-online.service                                                                       loaded active exited    Network Manager Wait Online                                                                                    
  NetworkManager.service                                                                                   loaded active running   Network Manager                                                                                                
  packagekit.service                                                                                       loaded active running   PackageKit Daemon                                                                                              
  pcscd.service                                                                                            loaded active running   PC/SC Smart Card Daemon                                                                                        
  plymouth-quit-wait.service                                                                               loaded active exited    Hold until boot process finishes up                                                                            
  plymouth-read-write.service                                                                              loaded active exited    Tell Plymouth To Write Out Runtime Data                                                                        
  plymouth-start.service                                                                                   loaded active exited    Show Plymouth Boot Screen                                                                                      
  polkit.service                                                                                           loaded active running   Authorization Manager                                                                                          
  rngd.service                                                                                             loaded active running   Hardware RNG Entropy Gatherer Daemon                                                                           
  rpc-statd-notify.service                                                                                 loaded active exited    Notify NFS peers of a restart                                                                                  
  rsyslog.service                                                                                          loaded active running   System Logging Service                                                                                         
  rtkit-daemon.service                                                                                     loaded active running   RealtimeKit Scheduling Policy Service                                                                          
  smartd.service                                                                                           loaded active running   Self Monitoring and Reporting Technology (SMART) Daemon                                                        
  sssd-kcm.service                                                                                         loaded active running   SSSD Kerberos Cache Manager                                                                                    
  sssd.service                                                                                             loaded active running   System Security Services Daemon                                                                                
  swap-create@zram0.service                                                                                loaded active exited    Create swap on /dev/zram0                                                                                      
  switcheroo-control.service                                                                               loaded active running   Switcheroo Control Proxy service                                                                               
  systemd-backlight@backlight:acpi_video0.service                                                          loaded active exited    Load/Save Screen Backlight Brightness of backlight:acpi_video0                                                 
  systemd-backlight@backlight:intel_backlight.service                                                      loaded active exited    Load/Save Screen Backlight Brightness of backlight:intel_backlight                                             
  systemd-backlight@leds:smc::kbd_backlight.service                                                        loaded active exited    Load/Save Screen Backlight Brightness of leds:smc::kbd_backlight                                               
  systemd-fsck@dev-disk-by\x2duuid-49fb6966\x2d6849\x2d4b52\x2d9d61\x2dda6083d6ac33.service                loaded active exited    File System Check on /dev/disk/by-uuid/49fb6966-6849-4b52-9d61-da6083d6ac33                                    
  systemd-fsck@dev-disk-by\x2duuid-7b7047ed\x2d4451\x2d3917\x2db8f2\x2d264a74daa9de.service                loaded active exited    File System Check on /dev/disk/by-uuid/7b7047ed-4451-3917-b8f2-264a74daa9de                                    
  systemd-homed.service                                                                                    loaded active running   Home Area Manager                                                                                              
  systemd-journal-flush.service                                                                            loaded active exited    Flush Journal to Persistent Storage                                                                            
  systemd-journald.service                                                                                 loaded active running   Journal Service                                                                                                
  systemd-logind.service                                                                                   loaded active running   User Login Management                                                                                          
  systemd-machined.service                                                                                 loaded active running   Virtual Machine and Container Registration Service                                                             
  systemd-modules-load.service                                                                             loaded active exited    Load Kernel Modules                                                                                            
  systemd-random-seed.service                                                                              loaded active exited    Load/Save Random Seed                                                                                          
  systemd-remount-fs.service                                                                               loaded active exited    Remount Root and Kernel File Systems                                                                           
  systemd-resolved.service                                                                                 loaded active running   Network Name Resolution                                                                                        
  systemd-sysctl.service                                                                                   loaded active exited    Apply Kernel Variables                                                                                         
  systemd-tmpfiles-setup-dev.service                                                                       loaded active exited    Create Static Device Nodes in /dev                                                                             
  systemd-tmpfiles-setup.service                                                                           loaded active exited    Create Volatile Files and Directories                                                                          
  systemd-udev-trigger.service                                                                             loaded active exited    Coldplug All udev Devices                                                                                      
  systemd-udevd.service                                                                                    loaded active running   Rule-based Manager for Device Events and Files                                                                 
  systemd-update-utmp.service                                                                              loaded active exited    Update UTMP about System Boot/Shutdown                                                                         
  systemd-user-sessions.service                                                                            loaded active exited    Permit User Sessions                                                                                           
  systemd-userdbd.service                                                                                  loaded active running   User Database Manager                                                                                          
  systemd-vconsole-setup.service                                                                           loaded active exited    Setup Virtual Console                                                                                          
  thermald.service                                                                                         loaded active running   Thermal Daemon Service                                                                                         
  udisks2.service                                                                                          loaded active running   Disk Manager                                                                                                   
  upower.service                                                                                           loaded active running   Daemon for power management                                                                                    
  uresourced.service                                                                                       loaded active running   User resource assignment daemon                                                                                
  user-runtime-dir@1000.service                                                                            loaded active exited    User Runtime Directory /run/user/1000                                                                          
  user@1000.service                                                                                        loaded active running   User Manager for UID 1000                                                                                      
  wpa_supplicant.service                                                                                   loaded active running   WPA supplicant                                                                                                 
  -.slice                                                                                                  loaded active active    Root Slice                                                                                                     
  machine.slice                                                                                            loaded active active    Virtual Machine and Container Slice                                                                            
  system-dbus\x2d:1.15\x2dorg.freedesktop.problems.slice                                                   loaded active active    system-dbus\x2d:1.15\x2dorg.freedesktop.problems.slice                                                         
  system-getty.slice                                                                                       loaded active active    system-getty.slice                                                                                             
  system-modprobe.slice                                                                                    loaded active active    system-modprobe.slice                                                                                          
  system-swap\x2dcreate.slice                                                                              loaded active active    system-swap\x2dcreate.slice                                                                                    
  system-systemd\x2dbacklight.slice                                                                        loaded active active    system-systemd\x2dbacklight.slice                                                                              
  system-systemd\x2dfsck.slice                                                                             loaded active active    system-systemd\x2dfsck.slice                                                                                   
  system.slice                                                                                             loaded active active    System Slice                                                                                                   
  user-1000.slice                                                                                          loaded active active    User Slice of UID 1000                                                                                         
  user.slice                                                                                               loaded active active    User and Session Slice                                                                                         
  avahi-daemon.socket                                                                                      loaded active running   Avahi mDNS/DNS-SD Stack Activation Socket                                                                      
  cups.socket                                                                                              loaded active running   CUPS Scheduler                                                                                                 
  dbus.socket                                                                                              loaded active running   D-Bus System Message Bus Socket                                                                                
  dm-event.socket                                                                                          loaded active listening Device-mapper event daemon FIFOs                                                                               
  iscsid.socket                                                                                            loaded active listening Open-iSCSI iscsid Socket                                                                                       
  iscsiuio.socket                                                                                          loaded active listening Open-iSCSI iscsiuio Socket                                                                                     
  libvirtd-admin.socket                                                                                    loaded active listening Libvirt admin socket                                                                                           
  libvirtd-ro.socket                                                                                       loaded active listening Libvirt local read-only socket                                                                                 
  libvirtd.socket                                                                                          loaded active listening Libvirt local socket                                                                                           
  lvm2-lvmpolld.socket                                                                                     loaded active listening LVM2 poll daemon socket                                                                                        
  pcscd.socket                                                                                             loaded active running   PC/SC Smart Card Daemon Activation Socket                                                                      
  sssd-kcm.socket                                                                                          loaded active running   SSSD Kerberos Cache Manager responder socket                                                                   
  systemd-coredump.socket                                                                                  loaded active listening Process Core Dump Socket                                                                                       
  systemd-initctl.socket                                                                                   loaded active listening initctl Compatibility Named Pipe                                                                               
  systemd-journald-audit.socket                                                                            loaded active running   Journal Audit Socket                                                                                           
  systemd-journald-dev-log.socket                                                                          loaded active running   Journal Socket (/dev/log)                                                                                      
  systemd-journald.socket                                                                                  loaded active running   Journal Socket                                                                                                 
  systemd-rfkill.socket                                                                                    loaded active listening Load/Save RF Kill Switch Status /dev/rfkill Watch                                                              
  systemd-udevd-control.socket                                                                             loaded active running   udev Control Socket                                                                                            
  systemd-udevd-kernel.socket                                                                              loaded active running   udev Kernel Socket                                                                                             
  systemd-userdbd.socket                                                                                   loaded active running   User Database Manager Socket                                                                                   
  virtlockd.socket                                                                                         loaded active listening Virtual machine lock manager socket                                                                            
  virtlogd.socket                                                                                          loaded active listening Virtual machine log manager socket                                                                             
  dev-zram0.swap                                                                                           loaded active active    Compressed swap on /dev/zram0                                                                                  
  basic.target                                                                                             loaded active active    Basic System                                                                                                   
  bluetooth.target                                                                                         loaded active active    Bluetooth                                                                                                      
  cryptsetup.target                                                                                        loaded active active    Local Encrypted Volumes                                                                                        
  getty.target                                                                                             loaded active active    Login Prompts                                                                                                  
  graphical.target                                                                                         loaded active active    Graphical Interface                                                                                            
  local-fs-pre.target                                                                                      loaded active active    Local File Systems (Pre)                                                                                       
  local-fs.target                                                                                          loaded active active    Local File Systems                                                                                             
  multi-user.target                                                                                        loaded active active    Multi-User System                                                                                              
  network-online.target                                                                                    loaded active active    Network is Online                                                                                              
  network-pre.target                                                                                       loaded active active    Network (Pre)                                                                                                  
  network.target                                                                                           loaded active active    Network                                                                                                        
  nfs-client.target                                                                                        loaded active active    NFS client services                                                                                            
  nss-lookup.target                                                                                        loaded active active    Host and Network Name Lookups                                                                                  
  nss-user-lookup.target                                                                                   loaded active active    User and Group Name Lookups                                                                                    
  paths.target                                                                                             loaded active active    Paths                                                                                                          
  remote-fs-pre.target                                                                                     loaded active active    Remote File Systems (Pre)                                                                                      
  remote-fs.target                                                                                         loaded active active    Remote File Systems                                                                                            
  rpc_pipefs.target                                                                                        loaded active active    rpc_pipefs.target                                                                                              
  slices.target                                                                                            loaded active active    Slices                                                                                                         
  sockets.target                                                                                           loaded active active    Sockets                                                                                                        
  sound.target                                                                                             loaded active active    Sound Card                                                                                                     
  swap.target                                                                                              loaded active active    Swap                                                                                                           
  sysinit.target                                                                                           loaded active active    System Initialization                                                                                          
  timers.target                                                                                            loaded active active    Timers                                                                                                         
  dnf-makecache.timer                                                                                      loaded active waiting   dnf makecache --timer                                                                                          
  fstrim.timer                                                                                             loaded active waiting   Discard unused blocks once a week                                                                              
  logrotate.timer                                                                                          loaded active waiting   Daily rotation of log files                                                                                    
  mlocate-updatedb.timer                                                                                   loaded active waiting   Updates mlocate database every day                                                                             
  raid-check.timer                                                                                         loaded active waiting   Weekly RAID setup health check                                                                                 
  systemd-tmpfiles-clean.timer                                                                             loaded active waiting   Daily Cleanup of Temporary Directories                                                                         
  unbound-anchor.timer                                                                                     loaded active waiting   daily update of the root trust anchor for DNSSEC                                                               

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

223 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
Du nouveau.

J'ai reinstalle fedora 33 depuis un liveusb. la seule chose que j'ai faite c'est 
dnf groupinstall "Development Tools and Libraries
dnf update
puis apres redemarrage j'avais 2 kernels 
 5.9.11 
5.8.15
et cette fois le meme kernel qui bloquait est passe.
je pense donc qu'il y avait un probleme durant le passage de 5.8.10-200 vers 5.9.11.
les autres machines sont toujours bloque j'ai fait dnf remove kernl-5.9.10-200 depuis le 5.8.15 mais ca n'a pas suffit.
Bon effectivement il y a peut-être eu un souci dans l'installation d'un kernel.

Si tout est rentré dans l'ordre et qu'aucun service n'est en défaut alors tu peux passer le sujet en résolu.
Non je ne peux pas mettre resolu, car mon probleme n'est pas regler. Je ne peux pas me permettre de reinstaller mon ordinateur principal.
la j'ai pu le faire car c'est sur un vieux macbook 2013 que j'ai utiliser pour tester.
Ma question c'est il y a t'il un moyen de d'annuler un update pour retourner a une voir 2 version anterieur?
lilington wrote:Non je ne peux pas mettre resolu, car mon probleme n'est pas regler. Je ne peux pas me permettre de reinstaller mon ordinateur principal.
la j'ai pu le faire car c'est sur un vieux macbook 2013 que j'ai utiliser pour tester.
Ma question c'est il y a t'il un moyen de d'annuler un update pour retourner a une voir 2 version anterieur?
Oui il y a un moyen, et je pense que tu aurais pu le trouver tout seul car tu n'as pas l'air d'être un débutant (cf. --> man dnf).

Tu dois te servir de la commande : 
$sudo dnf history --reverse
(l'option --reverse permet d'afficher les dernières transactions en fin de liste, ça évite d'avoir à scroller par la suite au début de la-dite liste...)

Ensuite une fois que tu as repéré la transaction à laquelle tu souhaites revenir, tu effectues la commande suivante : 
$sudo dnf history rollback "transaction-id"
Si tu ne situes pas exactement de quelle transaction il s'agit, tu peux à l'aide de :
$sudo dnf history info "transaction-id"
avoir plus d'infos sur une transaction donnée.
GOGI wrote: Oui il y a un moyen, et je pense que tu aurais pu le trouver tout seul car tu n'as pas l'air d'être un débutant (cf. --> man dnf).
Tu as raison, je n'y ai meme pas pense. Merci.

J'ai marque resolu mais en fait ca ne l'est pas. la raison c'est que 
dnf history roolback id
ne marche pas.
en cherchant un peu je suis tombe sur ce lien qui explique pourquoi.

en attendat dnf history info m'a permis de voir le problem (meme si je sais pas comment le regler)
lors de la mise ajourt dracut-install a echouer pour exactement 399 action dont celles-ci par example: 
51 dracut: FAILED: /usr/lib/dracut/dracut-install -D /var/tmp/dracut.pWodUt/initramfs -a -l nologin
181 dracut: FAILED: /usr/lib/dracut/dracut-install -D /var/tmp/dracut.pWodUt/initramfs -l /usr/bin/systemd-run
214 dracut: FAILED: /usr/lib/dracut/dracut-install -D /var/tmp/dracut.pWodUt/initramfs -a -l umount
400 dracut: FAILED: /usr/lib/dracut/dracut-install -D /var/tmp/dracut.pWodUt/initramfs -a -l umount poweroff reboot halt losetup stat sleep
Si quelqu'un a une idee sinon mon idee pour regler ce problem c'est d'utiliser l'historique pour manuellement

1 deinstaller tout ce qui a ete installe,
2 downgrade tout ce qui a ete upgrade
3 upgrade tout ce qui a ete downgrad
4 installer tout ce qui a ete erase
5 dnf update encore ce qui me fera passer du plus vieux kernel au 5.9.11-200 en sautant les precedents.

pour le point 4 je sais meme pas si j'arriverai a tous les trouver. cas echeant je vais devoir faire une reinstall totale et cette fois ajouter le plugin-local de dnf pour avoir un mirroir local.