18 Eylül 2012 Salı

hetzner disk mount fat fat32 ssd raid

mount: unknown filesystem type 'LVM2_member'

here was the syntax used:

termcb:~ # mount /dev/hda2 /mnt/old/
mount: unknown filesystem type 'LVM2_member'

and here was the drive :

termcb:~ # fdisk -l

Disk /dev/hda: 30.0 GB, 30005821440 bytes
255 heads, 63 sectors/track, 3648 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 3648 29198137+ 8e Linux LVM

so using lvm2 tools, we do a disk scan:

termcb:~ # lvmdiskscan
/dev/ram0 [ 62.50 MB]
/dev/ram1 [ 62.50 MB]
/dev/hda1 [ 101.94 MB]
/dev/sda1 [ 39.19 MB]
/dev/ram2 [ 62.50 MB]
/dev/hda2 [ 27.85 GB] LVM physical volume
/dev/sda2 [ 2.01 GB]
/dev/ram3 [ 62.50 MB]
/dev/sda3 [ 60.00 GB]
/dev/ram4 [ 62.50 MB]
/dev/sda4 [ 86.96 GB]
/dev/ram5 [ 62.50 MB]
/dev/ram6 [ 62.50 MB]
/dev/ram7 [ 62.50 MB]
/dev/ram8 [ 62.50 MB]
/dev/ram9 [ 62.50 MB]
/dev/ram10 [ 62.50 MB]
/dev/ram11 [ 62.50 MB]
/dev/ram12 [ 62.50 MB]
/dev/ram13 [ 62.50 MB]
/dev/ram14 [ 62.50 MB]
/dev/ram15 [ 62.50 MB]
0 disks
21 partitions
0 LVM physical volume whole disks
1 LVM physical volume

then we do a lvdisplay so we can get the LV Name and VG Name:

termcb:~ # lvdisplay
--- Logical volume ---
LV Name /dev/VolGroup00/LogVol00
VG Name VolGroup00
LV UUID WBjpH6-Jezl-aI1z-XVSp-WzvW-qTDi-c1jkUv
LV Write Access read/write
LV Status NOT available
LV Size 26.06 GB
Current LE 834
Segments 1
Allocation inherit
Read ahead sectors 0

--- Logical volume ---
LV Name /dev/VolGroup00/LogVol01
VG Name VolGroup00
LV UUID Zykaw3-WBHU-oink-38W9-KylN-7u5j-PKx8qT
LV Write Access read/write
LV Status NOT available
LV Size 1.75 GB
Current LE 56
Segments 1
Allocation inherit
Read ahead sectors 0

and also a vgdisplay to make sure it was the right drive:

termcb:~ # vgdisplay
--- Volume group ---
VG Name VolGroup00
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 27.84 GB
PE Size 32.00 MB
Total PE 891
Alloc PE / Size 890 / 27.81 GB
Free PE / Size 1 / 32.00 MB
VG UUID ryYRi4-mXOd-XFaW-4xnR-h1cl-hphh-5QQnlM

so at this point i re-tried to mount but using the VG Name:

termcb:~ # mount /dev/VolGroup00/LogVol00 /mnt/old/
mount: special device /dev/VolGroup00/LogVol00 does not exist

still failure

so i did an
lvscan
next to see what the status of the lv drive is:

termcb:~ # lvscan
inactive '/dev/VolGroup00/LogVol00' [26.06 GB] inherit
inactive '/dev/VolGroup00/LogVol01' [1.75 GB] inherit

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