Debian 12 - Cannot find a compatible file system for storing snapshot data

[HansJoergStefan]

Hey Guys,

i just ran into an issue from my Debian 12 server runnin veeam agent for linux. I set up veeam like 2 months ago, using blksnap because Debian 12 is using 6.1 kernel.
Everything ran fine without any issues, but when i recently checked i saw all backups failed since 12.12.2023 with the same issue:

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17:53:50         Job daily started at 2023-12-29 16:53:50 UTC
      17:54:05         Preparing to backup
      17:54:23         Backup file encryption is enabled
      17:54:23         [error] Failed to create volume snapshot                                                                                                                                                                                                        00:00:02
      17:54:25         [error] Failed to take volume snapshot
      17:54:25         [error] Failed to perform backup
      17:54:25         [error] Cannot find a compatible file system for storing snapshot data
      17:54:25         [error] Processing finished with errors at 2023-12-29 16:54:25 UTC

The problem occured since the last kernel update on 12.12.2023 (/var/log/apt/history.log):

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Start-Date: 2023-12-12  06:48:03
Commandline: /usr/bin/unattended-upgrade
Remove: linux-headers-6.1.0-13-amd64:amd64 (6.1.55-1)
End-Date: 2023-12-12  06:48:04

Start-Date: 2023-12-12  06:48:06
Commandline: /usr/bin/unattended-upgrade
Remove: linux-image-6.1.0-13-amd64:amd64 (6.1.55-1)
End-Date: 2023-12-12  06:48:14

Start-Date: 2023-12-12  06:48:16
Commandline: /usr/bin/unattended-upgrade
Remove: linux-headers-6.1.0-13-common:amd64 (6.1.55-1)
End-Date: 2023-12-12  06:48:17

Surely i have checked the free disk space, but there is a lot of free space available:

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Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  3.8G     0  3.8G   0% /dev
tmpfs          tmpfs     776M  3.2M  772M   1% /run
/dev/sda1      ext4       75G   28G   44G  39% /
tmpfs          tmpfs     3.8G  392K  3.8G   1% /dev/shm
tmpfs          tmpfs     5.0M     0  5.0M   0% /run/lock
/dev/sda15     vfat      241M  138K  241M   1% /boot/efi
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/46c9dbb5a8d848c60659ffc9d1d4d91c1d7e93e795d3393caf7edfed0201d852/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/8de6697a69cb78a853a477f050a91ade894117e3fe57ab6c76cf8aaa802e0e74/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/62b884752a6f0658fff20ee0d23b5388be7000f4760a0895e5f8634c355df1af/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/40fd8b3d7a9034de4a0c4e919680b9c7913ad0aaa6a9c0758a1d8ecceee4208c/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/606ee28ea15ff9e993316d303503e33fc70330100b8ad0bf72b663c206c026d3/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/0109b5462ae5e3560543d564ebb06c30d02c8561d2fe02bfca568f813d736e42/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/742b432be25c46e935c7be2edafaf17a8c6e489ae36309444ccfad232b15d16a/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/1e45114620337b4c7a1a1353bd2d95873e75b78a40b7a07d51a832259408d9d3/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/e3e562f2e091903638e4a96d96a9d5a7c36837caa7814d0049981b03f6f4b8cd/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/62f528b7e77fd91331bec18c4ab595d75a719a5036512eaf43c59ea1d83307ef/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/6532efb251ee4616f39972bde95641209bc8c66a1f123f09a7138a5fefb3bb6a/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/fd3afc0ae02bab8f9e05352d00ba48fcf8277f653f8a57a66e08f7e1d44057e2/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/e3252df9b9d8b349a215b63557202484a2e6468427d8e74e7de0c29900b9b7e1/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/f3e6addeb883926962dc26b09e62ab03a1ee96a8c66c79872ec5c646961d900f/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/14354993fb1e2394e2ce95dd7c3e10e77c357d8c594d1fb947a47b603efe87c8/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/2fff9c73ef52a56e2d989dec44830e7cf0ee982fb4f3aaca25c0dda499f2eda6/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/824964bef62fe898d1dab971345208809b9bc093d781625136d4ef8eb597fb5f/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/c6c70c9e3161c36f3991c996665770fbc1a6d2628b2c5591faaa175ec102d443/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/c8a661afc720845a5bdabbfc2610e7dfed76f4724ffe59a919132c629abef141/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/d39a3b06afaa4adba3d574329b0d738ecf028112edf308180d014f9ef848c033/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/f694f00f7ed14ab856e2b4b54644889f6d666acc49c0ceec68ac8f5695a42f24/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/c3230a9d3c48bb1c20c6b88d7f532d85a9f27e3dda2ee340c645e08147045930/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/2368a151470335ecc1fa7f029ee7af5f0388e957b4ecaacc11b9682c2b943ca8/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/748bc8acc7c616b6aa335888c77c5e6d8be61942a5adaa9cab3d39619a30979a/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/f45ef650efe5cb6f3bf191872ab494b0e13173b7a643a9d62f25fec4e09e9476/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/b90dd7c8fdeb5add323345374b47f45baccc3330fe9a0f09474cdc549262ded3/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/181c097b87761b18fc1ced376f3f8c61eb0ff2bac0b66067dc54d7edf2831545/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/ac96d5617ba55c75abd7b94fab70eb347c136099c6c7b60097a018cdab1131bd/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/dc52cb03a17762bb9bf2b6c54da01e59f751992c030d80221f371133eef8fb4f/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/13186511f91048a162493ac9b5ae0ca6fab1b32c9adaf25c81c60be11b16af13/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/1de923dc5c16ef7891d1097c8cceeca620c2cd4e5e8625e61f6151a5770ebee1/merged
overlay        overlay    75G   28G   44G  39% /var/lib/docker/overlay2/8c6f9e83bafdc189e626eb22d3f409b6203e3dedff4d2b000ca66e56d4e24499/merged
tmpfs          tmpfs     776M     0  776M   0% /run/user/0

Is there any known issue with the latest kernel-update?
Do you have any idea how to solve this issue?

Thanks!

[HansJoergStefan]

Edit:
Wrong Lines from /var/log/apt/history.log -> Correct one of Upgrade-Process.

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Start-Date: 2023-12-11  06:11:02
Commandline: /usr/bin/unattended-upgrade
Install: linux-headers-6.1.0-14-common:amd64 (6.1.64-1, automatic), linux-headers-6.1.0-14-amd64:amd64 (6.1.64-1, automatic), linux-image-6.1.0-14-amd64:amd64 (6.1.64-1, automatic)
Upgrade: linux-headers-amd64:amd64 (6.1.55-1, 6.1.64-1), linux-image-amd64:amd64 (6.1.55-1, 6.1.64-1)
End-Date: 2023-12-11  06:11:57

[rovshan.pashayev]

Hello HansJoergStefan,

Please provide a support case ID for this issue, as requested when you click New Topic.
Support can only help if you upload logs https://www.veeam.com/kb1832

Without case number, the topic will eventually be deleted by moderators.

Best regards,
Rovshan