Hello,
I had to re-install my OS from scratch after a software problem (perl).
Now struggling to recover the logical volume I had before the server crash. It is full of files, data etc. OS was not (and is not) on that hard disk. That is a separate data partition (actually a hard raid array). There is no any hard disk failure. And, I didn't formatted this disk during re-install OS. So, I think, the data should be there untouched.
What I did:
#pvcreate /dev/sdc
#vgcreate -s 32M raid_vg0 /dev/sdc (I used the same PE size as before)
#lvcreate -l 23839 -n raid_lv0 raid_vg0 (maximum extents from vgdisplay)
Unfortunately, it complains when mounting raid_lv0:
#mount: you must specify the filesystem type
Obviously, if I format it, there will be no problem in mounting, but will lose all the data on it.
Is there a way to mount this lv without losing data? Or, should I forget about all the data on that disk?
Please help!
Best wishes,
Mufit
Some info:
[root@server dev]# pvdisplay
--- Physical volume ---
PV Name /dev/sdc
VG Name raid_vg0
PV Size 745.00 GB / not usable 32.00 MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 23839
Free PE 0
Allocated PE 23839
PV UUID 2Xd3p7-KlaX-SIbW-vCKH-uJ73-Ldeh-QG0P9r
[root@server dev]# vgdisplay
--- Volume group ---
VG Name raid_vg0
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 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 744.97 GB
PE Size 32.00 MB
Total PE 23839
Alloc PE / Size 23839 / 744.97 GB
Free PE / Size 0 / 0
VG UUID MUz02m-JWYb-f2gP-8PBc-0y2I-a1y8-sZfrOx
[root@server dev]# lvdisplay
--- Logical volume ---
LV Name /dev/raid_vg0/raid_lv0
VG Name raid_vg0
LV UUID 2yoy12-qASz-qdmy-AcB4-iaG3-XGN8-mwv9VS
LV Write Access read/write
LV Status available
# open 0
LV Size 744.97 GB
Current LE 23839
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:0
I had to re-install my OS from scratch after a software problem (perl).
Now struggling to recover the logical volume I had before the server crash. It is full of files, data etc. OS was not (and is not) on that hard disk. That is a separate data partition (actually a hard raid array). There is no any hard disk failure. And, I didn't formatted this disk during re-install OS. So, I think, the data should be there untouched.
What I did:
#pvcreate /dev/sdc
#vgcreate -s 32M raid_vg0 /dev/sdc (I used the same PE size as before)
#lvcreate -l 23839 -n raid_lv0 raid_vg0 (maximum extents from vgdisplay)
Unfortunately, it complains when mounting raid_lv0:
#mount: you must specify the filesystem type
Obviously, if I format it, there will be no problem in mounting, but will lose all the data on it.
Is there a way to mount this lv without losing data? Or, should I forget about all the data on that disk?
Please help!
Best wishes,
Mufit
Some info:
[root@server dev]# pvdisplay
--- Physical volume ---
PV Name /dev/sdc
VG Name raid_vg0
PV Size 745.00 GB / not usable 32.00 MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 23839
Free PE 0
Allocated PE 23839
PV UUID 2Xd3p7-KlaX-SIbW-vCKH-uJ73-Ldeh-QG0P9r
[root@server dev]# vgdisplay
--- Volume group ---
VG Name raid_vg0
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 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 744.97 GB
PE Size 32.00 MB
Total PE 23839
Alloc PE / Size 23839 / 744.97 GB
Free PE / Size 0 / 0
VG UUID MUz02m-JWYb-f2gP-8PBc-0y2I-a1y8-sZfrOx
[root@server dev]# lvdisplay
--- Logical volume ---
LV Name /dev/raid_vg0/raid_lv0
VG Name raid_vg0
LV UUID 2yoy12-qASz-qdmy-AcB4-iaG3-XGN8-mwv9VS
LV Write Access read/write
LV Status available
# open 0
LV Size 744.97 GB
Current LE 23839
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:0
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.
_______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
