Won't boot

vmsv · Mar 7, 2011

My server doesn't boot. I've got some errors saying that the mount points for the lvm are not available.
I have tryied to mount the volumes using a knoppix live cd but when I try to do some commands I always have an error. Bellow you can see some of the errors:

root@Microknoppix:/mnt# pvscan
PV /dev/sda2 VG pve lvm2 [297.59 GiB / 3.99 GiB free]
Total: 1 [297.59 GiB] / in use: 1 [297.59 GiB] / in no VG: 0 [0 ]

root@Microknoppix:/mnt# vgscan
Reading all physical volumes. This may take a while...
Found volume group "pve" using metadata type lvm2

root@Microknoppix:/mnt# lvscan
ACTIVE '/dev/pve/swap' [4.00 GiB] inherit
ACTIVE '/dev/pve/root' [74.50 GiB] inherit
ACTIVE '/dev/pve/data' [215.09 GiB] inherit

root@Microknoppix:/mnt# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 pve lvm2 a- 297.59g 3.99g

root@Microknoppix:/mnt# vgs
VG #PV #LV #SN Attr VSize VFree
pve 1 3 0 wz--n- 297.59g 3.99g

root@Microknoppix:/mnt# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
data pve -wi-d- 215.09g
root pve -wi-d- 74.50g
swap pve -wi-d- 4.00g

root@Microknoppix:/mnt# mount /dev/mapper/pve-data /mnt/t -t ext3
mount: wrong fs type, bad option, bad superblock on /dev/mapper/pve-data,
missing codepage or helper program, or other error
(could this be the IDE device where you in fact use
ide-scsi so that sr0 or sda or so is needed?)
In some cases useful info is found in syslog - try

dmesg | tail
[103816.244512] EXT3-fs (dm-5): error: unable to read superblock

Has you can see it seems like pve-data points to dm-5 which doesn't appear on the fdisk -l list.

I only need to recover 2 virtual machines from the pve-data partition, I can reinstall all after recover these two files.

Any help?

vmsv · Mar 14, 2011

vmsv said:
My server doesn't boot. I've got some errors saying that the mount points for the lvm are not available.
I have tryied to mount the volumes using a knoppix live cd but when I try to do some commands I always have an error. Bellow you can see some of the errors:

root@Microknoppix:/mnt# pvscan
PV /dev/sda2 VG pve lvm2 [297.59 GiB / 3.99 GiB free]
Total: 1 [297.59 GiB] / in use: 1 [297.59 GiB] / in no VG: 0 [0 ]

root@Microknoppix:/mnt# vgscan
Reading all physical volumes. This may take a while...
Found volume group "pve" using metadata type lvm2

root@Microknoppix:/mnt# lvscan
ACTIVE '/dev/pve/swap' [4.00 GiB] inherit
ACTIVE '/dev/pve/root' [74.50 GiB] inherit
ACTIVE '/dev/pve/data' [215.09 GiB] inherit

root@Microknoppix:/mnt# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 pve lvm2 a- 297.59g 3.99g

root@Microknoppix:/mnt# vgs
VG #PV #LV #SN Attr VSize VFree
pve 1 3 0 wz--n- 297.59g 3.99g

root@Microknoppix:/mnt# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
data pve -wi-d- 215.09g
root pve -wi-d- 74.50g
swap pve -wi-d- 4.00g

root@Microknoppix:/mnt# mount /dev/mapper/pve-data /mnt/t -t ext3
mount: wrong fs type, bad option, bad superblock on /dev/mapper/pve-data,
missing codepage or helper program, or other error
(could this be the IDE device where you in fact use
ide-scsi so that sr0 or sda or so is needed?)
In some cases useful info is found in syslog - try

dmesg | tail
[103816.244512] EXT3-fs (dm-5): error: unable to read superblock

Has you can see it seems like pve-data points to dm-5 which doesn't appear on the fdisk -l list.

I only need to recover 2 virtual machines from the pve-data partition, I can reinstall all after recover these two files.

Any help?

After done more research I have the followin errors.

root@Microknoppix:~# lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
data pve -wi-d- 215.09g
root pve -wi-d- 74.50g
swap pve -wi-d- 4.00g
root@Microknoppix:~# lvchange -ay data
Volume group "data" not found
Skipping volume group data
root@Microknoppix:~# lvchange -ay /dev/mapper/pve-data
device-mapper: reload ioctl failed: Invalid argument
root@Microknoppix:~# vgs
VG #PV #LV #SN Attr VSize VFree
pve 1 3 0 wz--n- 297.59g 3.99g
root@Microknoppix:~# vgchange -ay pve
device-mapper: reload ioctl failed: Invalid argument
device-mapper: reload ioctl failed: Invalid argument
device-mapper: reload ioctl failed: Invalid argument
3 logical volume(s) in volume group "pve" now active

I have read that this might be a conflict between mdraid and dmraid is that possible? Do you know how can I resolve this I really need to recover to VM from the data partition.

MrJacK · Mar 15, 2011

What sort of RAID are you using for pve-data ?

vmsv · Mar 15, 2011

I this machine I have two software raid Intel and Nvidia I know they are not real raid. Might this be a conflict between the two? Later today I will post the output of dmsetup info.

vmsv · Mar 17, 2011

vmsv said:
I this machine I have two software raid Intel and Nvidia I know they are not real raid. Might this be a conflict between the two? Later today I will post the output of dmsetup info.

here is the dmsetup info output. Its strange that the pve-data has no tables. I really need some help on this!

Name: pve-swap
State: ACTIVE
Read Ahead: 256
Tables present: None
Open count: 0
Event number: 0
Major, minor: 253, 3
Number of targets: 0
UUID: LVM-EQF3afrMPSJ0wCUVMMsegnFut5NcbK1ShN1QmrrWpZku3cGzfQwDThlc7UFLAxpj

Name: pve-root
State: ACTIVE
Read Ahead: 256
Tables present: None
Open count: 0
Event number: 0
Major, minor: 253, 4
Number of targets: 0
UUID: LVM-EQF3afrMPSJ0wCUVMMsegnFut5NcbK1Sz8pv0nPIJ4WW8Fb0mj2UAQGpveBAJhz7

Name: pve-data
State: ACTIVE
Read Ahead: 256
Tables present: None
Open count: 0
Event number: 0
Major, minor: 253, 5
Number of targets: 0
UUID: LVM-EQF3afrMPSJ0wCUVMMsegnFut5NcbK1SjGC09kZNiQGsheqXOjA2J1PqgRaHyJS0

Name: isw_cbfaheddea_RV12
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 0
Event number: 0
Major, minor: 253, 2
Number of targets: 1
UUID: DMRAID-isw_cbfaheddea_RV12

Name: isw_cbfaheddea_RV11
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 0
Event number: 0
Major, minor: 253, 1
Number of targets: 1
UUID: DMRAID-isw_cbfaheddea_RV11

Name: isw_cbfaheddea_RV1
State: ACTIVE
Read Ahead: 256
Tables present: LIVE
Open count: 2
Event number: 0
Major, minor: 253, 0
Number of targets: 1
UUID: DMRAID-isw_cbfaheddea_RV1

udo · Mar 17, 2011

vmsv said:
...
root@Microknoppix:~# lvchange -ay /dev/mapper/pve-data
device-mapper: reload ioctl failed: Invalid argument
...

Hi,
what happens if you use

Code:

lvchange -a y /dev/pve/data
fsck /dev/pve/data

the error in the post before say not that /dev/pve/data not exist, but rather that the mount-point (/var/lib/vz) not exist.
If you boot from knoppix, do you can mount pve-root?

Code:

mount /dev/pve/root /mnt
mount /dev/pve/data /mnt/var/lib/vz
df -k

Udo

yellowpin · Mar 17, 2011

...
root@Microknoppix:~# lvchange -ay /dev/mapper/pve-data
device-mapper: reload ioctl failed: Invalid argument
...

well, it seems there is a mistake, but i can't say out where, it's bad~

__________________________________
Ps3 accessories, Wii accessories, Xbox 360 accessories

udo · Mar 17, 2011

yellowpin said:
well, it seems there is a mistake, but i can't say out where, it's bad~

root@Microknoppix:~# lvchange -ay /dev/mapper/pve-data
http://www.egamebiz.com/

and what happens, if you do what i write? /dev/mapper/pve-data and /dev/pve/data must not be the same if the mapper has trouble. The volume group is active?

Udo

vmsv · Mar 17, 2011

The device /dev/pve/data doesn't exist, just the /dev/mapper/pve-data. I have the /dev/mapper/pve-data, /dev/mapper/pve-root and /dev/mapper/pve-swap. On the /dev/mapper dir I also have the isw_cbfaheddea_RV12, isw_cbfaheddea_RV11 and isw_cbfaheddea_RV1 but when I try to mount any of these ones I always get an error its already mounted or busy, But I'm sure this not mounted.

udo · Mar 17, 2011

vmsv said:
The device /dev/pve/data doesn't exist, just the /dev/mapper/pve-data. I have the /dev/mapper/pve-data, /dev/mapper/pve-root and /dev/mapper/pve-swap. On the /dev/mapper dir I also have the isw_cbfaheddea_RV12, isw_cbfaheddea_RV11 and isw_cbfaheddea_RV1 but when I try to mount any of these ones I always get an error its already mounted or busy, But I'm sure this not mounted.

Hi,
ok - mapper came first. /dev/pve/data link to /dev/mapper/pve-data.

Do you change something with your fake-raid? Normaly the bios-raid-function should be disabled (it's not realy a raid) and the raid is done in your case with linux software-raid?!
If you first switch on the bios-raid-function and install something (see not an raid but single disks) and then you switched off the bios raid function your installation is gone...

Udo

vmsv · Mar 17, 2011

udo said:
Hi,
ok - mapper came first. /dev/pve/data link to /dev/mapper/pve-data.

Do you change something with your fake-raid? Normaly the bios-raid-function should be disabled (it's not realy a raid) and the raid is done in your case with linux software-raid?!
If you first switch on the bios-raid-function and install something (see not an raid but single disks) and then you switched off the bios raid function your installation is gone...

Udo

I didn't anything on BIOS, the strange thing is that the dmsetup info, command give me diferent raid and says that the tables are ok. But the pve-data don't have tables.

udo · Mar 17, 2011

vmsv said:
I didn't anything on BIOS, the strange thing is that the dmsetup info, command give me diferent raid and says that the tables are ok. But the pve-data don't have tables.

Hi,
to guess what's happen you must supply more infos.
Please post the output of following commands:

Code:

cat /proc/mdstat
mdadm -D /dev/md0      # and from the other md-devices, which you have in /proc/mdstat
fdisk -l
blkid

Udo

vmsv · Mar 17, 2011

udo said:
Hi,
to guess what's happen you must supply more infos.
Please post the output of following commands:

Code:

cat /proc/mdstat mdadm -D /dev/md0 # and from the other md-devices, which you have in /proc/mdstat fdisk -l blkid

Udo

root@debian:~# blkid
/dev/sda1: UUID="8511ce30-b8a5-4984-b0ad-df293f0cf57e" TYPE="ext3"
/dev/sda2: UUID="rHi2ET-tetw-i1OJ-jtbR-POj2-tnc9-SyVqa5" TYPE="LVM2_member"
/dev/sdb1: UUID="df4ddc65-8618-4489-aba6-986ce59d0155" TYPE="xfs"
/dev/sdb2: UUID="d1242105-9367-4dea-a3b2-e7611b4be17a" SEC_TYPE="ext2" TYPE="ext3"
/dev/sdb3: UUID="76905bff-7a6d-4e2e-99f8-853f0b7d60fc" SEC_TYPE="ext2" TYPE="ext3"
/dev/mapper/isw_cbfaheddea_RV11: UUID="8511ce30-b8a5-4984-b0ad-df293f0cf57e" TYPE="ext3"

root@debian:~# mdadm -D /dev/dm-0
mdadm: /dev/dm-0 does not appear to be an md device
root@debian:~# mdadm -D /dev/md0
mdadm: cannot open /dev/md0: No such file or directory
root@debian:~# ls -la /dev/md/
total 0
drwxr-xr-x 2 root root 40 Mar 17 20:33 .
drwxr-xr-x 16 root root 3280 Mar 17 20:33 ..

root@debian:~# cat /proc/mdstat
Personalities :
unused devices: <none>

udo · Mar 18, 2011

vmsv said:
root@debian:~# blkid
/dev/sda1: UUID="8511ce30-b8a5-4984-b0ad-df293f0cf57e" TYPE="ext3"
/dev/sda2: UUID="rHi2ET-tetw-i1OJ-jtbR-POj2-tnc9-SyVqa5" TYPE="LVM2_member"
/dev/sdb1: UUID="df4ddc65-8618-4489-aba6-986ce59d0155" TYPE="xfs"
/dev/sdb2: UUID="d1242105-9367-4dea-a3b2-e7611b4be17a" SEC_TYPE="ext2" TYPE="ext3"
/dev/sdb3: UUID="76905bff-7a6d-4e2e-99f8-853f0b7d60fc" SEC_TYPE="ext2" TYPE="ext3"
/dev/mapper/isw_cbfaheddea_RV11: UUID="8511ce30-b8a5-4984-b0ad-df293f0cf57e" TYPE="ext3"

ok, "fdisk -l" is missing, but this show:
1. you have two plain disk (no softwareraid).
2. First disk is proxmox (boot + lvm). Normaly the lvm should be the volumegroup pve.
3. The second disk has tree partitions with xfs and two ext3.
4. Now the strange part: what is isw... ??
A posting before, it's show this is a dm-raid. But from which devices?? I see no raid-member.
This can only be done be you - so i think you must also help yourself! I guess this is not an standard proxmox installation, so i don't know what you have done...

best luck

Udo

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