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Proxmox LXC was not able to boot after disk increase (when the storage is full)
hzhoanglee
Member
in Help
I think it should not be posted here, but I don't know any forum to post.
Today, my friend tried to increase the size of the disk of 1 LXC and unfortunately, he didn't check that the "local-lvm" was 100% full.
Now the LXC is completely dead and cannot be booted.
When I try to start, it said:
DEBUG conf - ../src/lxc/conf.c:run_buffer:310 - Script exec /usr/share/lxc/hooks/lxc-pve-prestart-hook 103 lxc pre-start produced output: mount: /var/lib/lxc/.pve-staged-mounts/rootfs: cannot mount; probably corrupted filesystem on /dev/mapper/pve-vm--103--disk--0.
and when I try to run fsck
e2fsck 1.46.5 (30-Dec-2021)
ext2fs_open2: Superblock checksum does not match superblock
fsck.ext4: Superblock invalid, trying backup blocks...
fsck.ext4: Superblock checksum does not match superblock while trying to open /dev/pve/vm-103-disk-0
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
Tried finding backup block and e2fsck but no success.
Is there any chance that I can repair the disk and get the data inside the LXC? Thank you so much 
This discussion has been closed.
Comments
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I think you have other stuff in much more urgent need of doubling.
https://forum.proxmox.com/
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Hello, thank you for contacting LowEndSupport.
Your request has been tripled.
Regards.