Bon, j'ai fait un dnf distro-sync , ce qui m'a retrogradé une centaine de paquets (que j'avais surement installé avec updates-testing), mais pas d'amélioration :
[root@host-192-168-1-2 ~]# dnf system-upgrade download --releasever=25
Vérification de l'expiration des métadonnées effectuée il y a 3:02:46 sur Fri Nov 25 08:47:39 2016.
Erreur : nothing provides libXfont2-devel needed by xorg-x11-server-devel-1.19.0-0.8.rc2.fc25.x86_64.
nothing provides libXfont2.so.2()(64bit) needed by xorg-x11-server-Xorg-1.19.0-0.8.rc2.fc25.x86_64.
nothing provides libXfont2.so.2()(64bit) needed by xorg-x11-server-Xorg-1.19.0-0.8.rc2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by mediawriter-4.0.7-0.fc25.x86_64.
nothing provides libssh2(x86-64) >= 1.8.0 needed by libcurl-7.51.0-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kwin-libs-5.8.2-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kwin-common-5.8.2-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kwin-5.8.2-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kf5-kipi-plugins-libs-5.3.0-2.fc25.x86_64.
nothing provides libpoppler.so.62()(64bit) needed by inkscape-0.92-5.pre2.fc25.x86_64.
nothing provides libvpx.so.4()(64bit) needed by gstreamer1-plugins-good-1.10.0-1.fc25.x86_64.
nothing provides libhunspell-1.4.so.0()(64bit) needed by firefox-50.0-1.fc25.x86_64.
nothing provides fedora-repos(25) needed by fedora-release-25-0.12.noarch.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by digikam-libs-5.3.0-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by digikam-5.3.0-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by colord-kde-0.5.0-2.fc25.x86_64.
nothing provides libvpx.so.4()(64bit) needed by xine-lib-1.2.6-13.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by vlc-3.0.0-0.9.fc25.x86_64.
nothing provides libvpx.so.4()(64bit) needed by ffmpeg-libs-3.1.5-1.fc25.x86_64.
package boost-graph-1.60.0-7.fc24.x86_64 requires libicuuc.so.56()(64bit), but none of the providers can be installed.
nothing provides libssh2(x86-64) >= 1.8.0 needed by libcurl-7.51.0-2.fc25.x86_64.
package docbook2X-0.8.8-23.fc24.x86_64 requires perl(:MODULE_COMPAT_5.22.1), but none of the providers can be installed.
nothing provides libssh2(x86-64) >= 1.8.0 needed by libcurl-7.51.0-2.fc25.x86_64.
package qemu-system-x86-2:2.6.2-5.fc24.x86_64 requires libxenctrl.so.4.6()(64bit), but none of the providers can be installed.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by digikam-5.3.0-2.fc25.x86_64.
nothing provides fedora-repos(25) needed by fedora-release-25-0.12.noarch.
nothing provides libvpx.so.4()(64bit) needed by ffmpeg-libs-3.1.5-1.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kf5-kipi-plugins-libs-5.3.0-2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kwin-libs-5.8.2-2.fc25.x86_64.
nothing provides fedora-repos(25) needed by fedora-release-25-0.12.noarch.
nothing provides fedora-repos(25) needed by fedora-release-25-0.12.noarch.
nothing provides libvpx.so.4()(64bit) needed by xine-lib-1.2.6-13.fc25.x86_64.
nothing provides libXfont2.so.2()(64bit) needed by xorg-x11-server-Xorg-1.19.0-0.8.rc2.fc25.x86_64.
nothing provides libXfont2.so.2()(64bit) needed by xorg-x11-server-Xorg-1.19.0-0.8.rc2.fc25.x86_64.
nothing provides libQt5Core.so.5(Qt_5.7)(64bit) needed by kf5-kipi-plugins-libs-5.3.0-2.fc25.x86_64.
package boost-locale-1.60.0-7.fc24.x86_64 requires libicuuc.so.56()(64bit), but none of the providers can be installed.
package boost-log-1.60.0-7.fc24.x86_64 requires libicuuc.so.56()(64bit), but none of the providers can be installed.
package boost-regex-1.60.0-7.fc24.x86_64 requires libicuuc.so.56()(64bit), but none of the providers can be installed.
package foomatic-4.0.12-7.fc24.x86_64 requires perl(:MODULE_COMPAT_5.22.2), but none of the providers can be installed.
package perl-Algorithm-Diff-1.1903-4.fc24.noarch requires perl(:MODULE_COMPAT_5.22.1), but none of the providers can be installed.
package perl-Any-URI-Escape-0.01-9.fc24.noarch requires perl(:MODULE_COMPAT_5.22.1), but none of the providers can be installed.
package perl-AnyEvent-7.12-2.fc24.x86_64 requires perl(:MODULE_COMPAT_5.22.1), but none of the providers can be installed.
package perl-AnyEvent-AIO-1.1-18.fc24.noarch requires perl(:MODULE_COMPAT_5.22.1), but none of the providers can be installed.
package calligra-kexi-2.9.11-5.fc24.x86_64 requires libicuuc.so.56()(64bit), but none of the providers can be installed.
package perl-AnyEvent-BDB-1.1-18.fc24.noarch requires perl(:MODULE_COMPAT_5.22.1), but none of the providers can be installed.
package qemu-kvm-2:2.6.2-5.fc24.x86_64 requires qemu-system-x86 = 2:2.6.2-5.fc24, but none of the providers can be installed.
package qemu-kvm-2:2.6.2-5.fc24.x86_64 requires qemu-system-x86 = 2:2.6.2-5.fc24, but none of the providers can be installed
(essayez d'ajouter « --allowerasing » à la ligne de commande pour remplacer les paquets en conflit)
[root@host-192-168-1-2 ~]# dnf system-upgrade download --releasever=25 --allowerasing
Vérification de l'expiration des métadonnées effectuée il y a 3:03:13 sur Fri Nov 25 08:47:39 2016.
Dépendances résolues.
Erreur : L'opération aboutira au retrait des paquets protégés suivants : dnf.
[root@host-192-168-1-2 ~]#
De plus j'ai perdu mes drivers nvidia, mais je verrais plus tard avec la F25.
Je pense qu'il y a un soucis avec les dépôts, qui ne doivent pas être entièrement peuplés.
Je vais donc attendre encore un peu.