HD problem with fedora 12 installation (LVM partition problem?)

[warlus]

Hi ,

I have a fedora 12 installation , and the HD failed.

I was able to rescue one partition with fsck (sda0), but the other one (sda2) is giving me troubles - not mounted :

e2fsck -C0 -p -f -v /dev/sda2
e2fsck: Device or resource busy while trying to open /dev/sda2
Filesystem mounted or opened exclusively by another program?

[root@localhost liveuser]# fsck -C0 -p -f -v /dev/sda2
fsck from util-linux-ng 2.17.2
fsck: fsck.LVM2_member: not found
fsck: Error 2 while executing fsck.LVM2_member for /dev/sda2

if I do :

more /dev/sda2

it looks like the lvm partition data is there ... what would be the best way to save the data ?

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JvEEeIP
 LVM2 x[5A%r0N*>



id = "DWBvjn-uPfB-U8Sn-ADPb-m4AA-hQYM-BsCkh1"
seqno = 1
status = ["RESIZEABLE", "READ", "WRITE"]
flags = []
extent_size = 8192
max_lv = 0
max_pv = 0

physical_volumes {

pv0 {
id = "9k184Z-uTiK-C4V7-sx2E-jkw6-ZNjJ-vEEeIP"
device = "/dev/sda2"

status = ["ALLOCATABLE"]
flags = []
dev_size = 77746562
pe_start = 384
pe_count = 9490
}
}

}
# Generated by LVM2 version 2.02.53(1) (2009-09-25): Thu Dec 17 18:44:26 2009

contents = "Text Format Volume Group"
version = 1

description = ""

creation_host = "localhost.localdomain" # Linux localhost.localdomain 2.6.31.5-1
27.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686
creation_time = 1261068266 # Thu Dec 17 18:44:26 2009


id = "DWBvjn-uPfB-U8Sn-ADPb-m4AA-hQYM-BsCkh1"
seqno = 2
status = ["RESIZEABLE", "READ", "WRITE"]
flags = []
extent_size = 8192
max_lv = 0
max_pv = 0

physical_volumes {

pv0 {
id = "9k184Z-uTiK-C4V7-sx2E-jkw6-ZNjJ-vEEeIP"
device = "/dev/sda2"

status = ["ALLOCATABLE"]
flags = []
dev_size = 77746562
pe_start = 384
pe_count = 9490
}
}

logical_volumes {

lv_root {
id = "1svxZ0-HF8b-ZWGt-RTx9-Lp8H-iaPj-LsVRXq"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
segment_count = 1

segment1 {
start_extent = 0
extent_count = 9018

type = "striped"
stripe_count = 1 # linear

stripes = [
"pv0", 0
]
}
}
}
}
# Generated by LVM2 version 2.02.53(1) (2009-09-25): Thu Dec 17 18:44:26 2009

contents = "Text Format Volume Group"
version = 1

description = ""

creation_host = "localhost.localdomain" # Linux localhost.localdomain 2.6.31.5-1
27.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686
creation_time = 1261068266 # Thu Dec 17 18:44:26 2009

id = "DWBvjn-uPfB-U8Sn-ADPb-m4AA-hQYM-BsCkh1"
seqno = 3
status = ["RESIZEABLE", "READ", "WRITE"]
flags = []
extent_size = 8192
max_lv = 0
max_pv = 0

physical_volumes {

pv0 {
id = "9k184Z-uTiK-C4V7-sx2E-jkw6-ZNjJ-vEEeIP"
device = "/dev/sda2"

status = ["ALLOCATABLE"]
flags = []
dev_size = 77746562
pe_start = 384
pe_count = 9490
}
}

logical_volumes {

lv_root {
id = "1svxZ0-HF8b-ZWGt-RTx9-Lp8H-iaPj-LsVRXq"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
segment_count = 1

segment1 {
start_extent = 0
extent_count = 9018

type = "striped"
stripe_count = 1 # linear

stripes = [
"pv0", 0
]
}
}

lv_swap {
id = "uTx4mA-27fO-y7Bk-610C-cng0-xPdz-F2W831"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
segment_count = 1

segment1 {
start_extent = 0
extent_count = 472

type = "striped"
stripe_count = 1 # linear

stripes = [
"pv0", 9018
]
}
}
}
}
# Generated by LVM2 version 2.02.53(1) (2009-09-25): Thu Dec 17 18:44:47 2009

contents = "Text Format Volume Group"
version = 1

description = ""

creation_host = "localhost.localdomain" # Linux localhost.localdomain 2.6.31.5-1
27.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686
creation_time = 1261068287 # Thu Dec 17 18:44:47 2009





I would appriciate any kind of help !

[warlus]

found the solution ,

there was a need to do fsck also on the lvm volume itself which stands as a seperate device:

fsck -t ext4 /sda1
fsck -t ext4 /dev/dm-0

then it can be mounted , and the data saved.

I did this with live rescue cd , which has some good utilities like test_disk

might help if anyone has this problem in the future...