btrfs check: Superblock bytenr is larger than device size
Hello, all
On all our servers with BTRFS, which are otherwise working normally, `btrfs check /' complains that
Superblock bytenr is larger than device size Couldn't open file system
Since am not using any "dangerous" options and want merely to analyse the system for errors without any modifications, I don't think I must unount my FS, which in my case would mean booting from a live CD. What may be causeing this error?
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Quoted 4 lines · Anton Shepelev
Hello, all
On all our servers with BTRFS, which are otherwise working normally, `btrfs check /' complains that
Btrfs check shouldn't continue on mount point.
Latest one would report error like:
Opening filesystem to check...
ERROR: not a regular file or block device: /mnt/btrfs
ERROR: cannot open file system
Quoted 2 lines
Superblock bytenr is larger than device size
This shouldn't be a big problem, normally related to unaligned numbers, and older kernel/btrfs-progs.
Please try latest btrfs-progs and see if btrfs check reports any error.
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Couldn't open file system
Since am not using any "dangerous" options and want merely to analyse the system for errors without any modifications, I don't think I must unount my FS, which in my case would mean booting from a live CD. What may be causeing this error?
Normally old mkfs or old kernel.
Latest btrfs check result would definitely help to solve the problem. And the follow result will also help (can be dumpded even with fs mounted, also needs latest btrfs-progs):
# btrfs ins dump-super -FfA <device> # btrfs ins dump-tree -t chunk <device>
Thanks,
Qu
Quoted 1 line
Qu Wenruo to Anton Shepelev:
Quoted 8 lines
Quoted 6 lines
On all our servers with BTRFS, which are otherwise working normally, `btrfs check /' complains that
Superblock bytenr is larger than device size
Couldn't open file systemPlease try latest btrfs-progs and see if btrfs check reports any error.
It is SUSE Linux Enterprise with its native repository, so I cannot update btrfs easily. I will, though.
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Quoted 5 lines · Anton Shepelev
Qu Wenruo to Anton Shepelev:
Quoted 3 lines
Quoted 3 lines
On all our servers with BTRFS, which are otherwise working normally, `btrfs check /' complains that
Quoted 8 lines
Quoted 5 lines
Quoted 3 lines
Superblock bytenr is larger than device size
Couldn't open file systemPlease try latest btrfs-progs and see if btrfs check reports any error.
It is SUSE Linux Enterprise with its native repository, so I cannot update btrfs easily. I will, though.
Then I recommend to use latest openSUSE Tumbleweed rescue ISO to do the mount and check.
Thanks,
Qu