Bon ben je réponds moi même à mon problème :
1 - booter sur un live
2 - avoir accès à son ancien
/root pour moi :
/dev/fedora_ssd/root
3 - le monter :
mount /dev/fedora_ssd/root /tmp/
4 - stopper le volume :
vgchange -an fedora_hdd
5 - lister les fichier de configuration archivées :
ls -l /tmp/etc/lvm/archive/
total 52
-rw-------. 1 root root 2141 16 mars 15:04 fedora_hdd_00001-1448190916.vg
-rw-------. 1 root root 2321 16 mars 15:04 fedora_hdd_00002-996850286.vg
...
6 - test de restauration de la configuration:
vgcfgrestore fedora_hdd -f /etc/lvm/archive/fedora_hdd_00001-1448190916.vg --test
TEST MODE: Metadata will NOT be updated and volumes will not be (de)activated.
Restored volume group fedora_hdd
7 - Restauration :
vgcfgrestore fedora_hdd -f /etc/lvm/archive/fedora_hdd_00001-1448190916.vg
8 - Vérification:
vgchange -ay fedora_hdd
pvdisplay
--- Physical volume ---
PV Name /dev/sda3
VG Name fedora_hdd
PV Size 1,65 TiB / not usable 3,00 MiB
Allocatable yes (but full)
PE Size 4,00 MiB
Total PE 431499
Free PE 0
Allocated PE 431499
PV UUID GHKnpe-wamX-Ynvs-BfiV-B1ye-irqa-nSjR1r
--- Physical volume ---
PV Name /dev/sdb1
VG Name fedora_ssd
PV Size 111,79 GiB / not usable 4,00 MiB
Allocatable yes (but full)
PE Size 4,00 MiB
Total PE 28617
Free PE 0
Allocated PE 28617
PV UUID 4ugovg-lJ7F-3Qe3-WOVD-G18N-ffq1-LW1A5e
vgdisplay
--- Volume group ---
VG Name fedora_hdd
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 1,65 TiB
PE Size 4,00 MiB
Total PE 431499
Alloc PE / Size 431499 / 1,65 TiB
Free PE / Size 0 / 0
VG UUID hxXbaf-LdFL-2WUo-PNYY-y7o8-Esgg-CITG55
--- Volume group ---
VG Name fedora_ssd
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size 111,79 GiB
PE Size 4,00 MiB
Total PE 28617
Alloc PE / Size 28617 / 111,79 GiB
Free PE / Size 0 / 0
VG UUID z3yk1j-hzGs-Zpb1-uLmH-IQgr-Eo3I-bc1aKR
lvdisplay
--- Logical volume ---
LV Path /dev/fedora_hdd/home
LV Name home
VG Name fedora_hdd
LV UUID YLGGUy-SOxt-UlKt-mgiS-4iWN-HguG-KPBlcU
LV Write Access read/write
LV Creation host, time ASUS-CORE, 2014-01-26 03:00:29 +0100
LV Status available
# open 1
LV Size 1,62 TiB
Current LE 424999
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Path /dev/fedora_hdd/var
LV Name var
VG Name fedora_hdd
LV UUID nWjEke-S5RD-LPpa-A8fb-8A36-DOjU-tGH7XW
LV Write Access read/write
LV Creation host, time ASUS-CORE, 2014-01-26 03:00:39 +0100
LV Status available
# open 1
LV Size 9,77 GiB
Current LE 2500
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:3
--- Logical volume ---
LV Path /dev/fedora_hdd/swap
LV Name swap
VG Name fedora_hdd
LV UUID qsiQuq-WMHz-wdvy-o2ml-mLUG-EyLe-GjLXae
LV Write Access read/write
LV Creation host, time ASUS-CORE, 2014-01-26 03:00:42 +0100
LV Status available
# open 2
LV Size 15,62 GiB
Current LE 4000
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
--- Logical volume ---
LV Path /dev/fedora_ssd/root
LV Name root
VG Name fedora_ssd
LV UUID 8lGVeE-B6EX-bcwk-SLK7-IQpf-bRV8-yGISWP
LV Write Access read/write
LV Creation host, time ASUS-CORE, 2014-01-26 03:00:44 +0100
LV Status available
# open 1
LV Size 111,79 GiB
Current LE 28617
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
9 - sources :
-->ICI<-- (en anglais)