bonjour
J'ai mis un disque dur dans un boîtier externe en usb.
Le disque est en raid + lvm
# sfdisk -l
...
Disk /dev/sdc: 30401 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/sdc1 * 0+ 12 13- 104391 fd Linux raid autodetect
/dev/sdc2 13 30400 30388 244091610 fd Linux raid autodetect
/dev/sdc3 0 - 0 0 0 Empty
/dev/sdc4 0 - 0 0 0 Empty
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# mdadm --assemble --scan
mdadm: /dev/md1 has been started with 1 drive (out of 2).
mdadm: /dev/md2 has been started with 1 drive (out of 2).
# pvscan
PV /dev/md2 VG main lvm2 [232,78 GiB / 0 free]
Total: 1 [232,78 GiB] / in use: 1 [232,78 GiB] / in no VG: 0 [0 ]
# vgscan
Reading all physical volumes. This may take a while...
Found volume group "main" using metadata type lvm2
# vgs
VG #PV #LV #SN Attr VSize VFree
main 1 2 0 wz--n- 232,78g 0
# vgchange -ay /dev/main
2 logical volume(s) in volume group "main" now active
# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
root main -wi-a--- 228,84g
swap main -wi-a--- 3,94g
# mount /dev/mi /media/dd-sylvain1
mount: special device /dev/mi does not exist
root@anne:/home/anne# mount /dev/main/root /media/dd-sylvain1
mount: wrong fs type, bad option, bad superblock on /dev/mapper/main-root,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
# dmesg | tail
[377668.074598] sd 13:0:0:0: [sdc] Sense Key : Medium Error [current]
[377668.074606] sd 13:0:0:0: [sdc] Add. Sense: Unrecovered read error
[377668.074615] sd 13:0:0:0: [sdc] CDB: Read(10): 28 00 00 06 37 f5 00
00 f0 00
[377668.074629] end_request: critical target error, dev sdc, sector 407541
[377668.074764] JBD: Failed to read block at offset 22720
[377668.082268] JBD: recovery failed
[377668.082281] EXT3-fs (dm-0): error loading journal
[377671.070081] sd 4:0:0:0: [sdb] Test WP failed, assume Write Enabled
[377671.073428] sd 4:0:0:0: [sdb] Asking for cache data failed
[377671.073441] sd 4:0:0:0: [sdb] Assuming drive cache: write through
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Quelle commande faire?
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pour démonter
# vgchange -an /dev/main
0 logical volume(s) in volume group "main" now active
# mdadm --stop --scan
mdadm: stopped /dev/md2
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comment savoir si j'ai bien tout démonter et donc si je peux éteindre le
boîtier usb et enlever le câble usb
