Re: ext4: Funny characters appended to file names

On Fri, Dec 04, 2020 at 03:30:38PM +0100, Paul Menzel wrote:

Dear Linux folks,


Using Debian Sid/unstable with 5.9.11 (5.9.0-4-686-pae), it looks like the
last `sudo grub-update` installed modules with corrupted file names. `/boot`
is mounted.

quoted

$ findmnt /boot
TARGET SOURCE   FSTYPE OPTIONS
/boot  /dev/md0 ext4   rw,relatime
$ ls -l /boot/grub/i386-pc/
insgesamt 2085
-rw-r--r-- 1 root root   8004 13. Aug 23:00 '915resolution.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
-rw-r--r-- 1 root root  10596 13. Aug 23:00 'acpi.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
[…]
$ file /boot/grub/i386-pc/zstd.mod-��u^S�鍓\]�����f���ur��^DVt\$^Xj^B胒
/boot/grub/i386-pc/zstd.mod-��u�鍓]������f�����ur��V�t$j胒: ELF 32-bit
LSB relocatable, Intel 80386, version 1 (SYSV), not stripped

Checking the file system returned no errors.

    $ sudo umount /boot
    $ sudo fsck.ext4 /dev/md0
    e2fsck 1.45.6 (20-Mar-2020)
    boot: sauber, 331/124928 Dateien, 145680/497856 Blöcke

Try forcing a full fsck:

sudo fsck.ext4 -f /dev/md0

You'll see that it takes rather longer to run....

       	   	   	 	       - Ted