fsck.ext4 fails with signal 7

[Karl Fischer]

Hello
i get the followig error everytime i run fsck
even manualy or via ssh:

Unable to automatically fix md0, mounting Read Only: fsck 1.41.14 (22-Dec-2010)
/dev/md0 contains a file system with errors, check forced.
Warning... fsck.ext4 for device /dev/md0 exited with signal 7.
Alt-F directory found in md0 but not used, as filesystem is read-only!
Checking md0 finished with status code 8: fsck 1.41.14 (22-Dec-2010)
e2fsck 1.41.14 (22-Dec-2010)
Pass 1: Checking inodes, blocks, and sizes
Warning... fsck.ext4 for device /dev/md0 exited with signal 7.
what can  do ?

[João Cardoso]

On Tuesday, 27 September 2016 22:11:16 UTC+1, Karl Fischer wrote:

Hello
i get the followig error everytime i run fsck
even manualy or via ssh:

Unable to automatically fix md0, mounting Read Only: fsck 1.41.14 (22-Dec-2010)
/dev/md0 contains a file system with errors, check forced.
Warning... fsck.ext4 for device /dev/md0 exited with signal 7.

From the e2fsck manual page,  

EXIT CODE

       The  exit  code  returned  by e2fsck is the sum of the following condi‐

       tions:

            0    - No errors

            1    - File system errors corrected

            2    - File system errors corrected, system should

                   be rebooted

            4    - File system errors left uncorrected

            8    - Operational error

            16   - Usage or syntax error

            32   - E2fsck canceled by user request

            128  - Shared library error

 

so it should be errors 4+2+1=7, where 1 and 2 makes no sense together with 4 (other than reboot). So I have no idea.

A bit of context could be useful: how was the RAID created? under which firmware? How long has it working OK? recent/first Alt-F install and boot? does swap exists? W#hat box and rev is it?

Most of the above questions would be answered had you *attached* the System Configuration log, as the forum welcome message says.

In any case you should think in doing a backup, the filesystem is mounted in RO mode to prevent further damages and allow backups to be done.