Snapraid `devices`, `probe`, and `smart` fail with error: `Failed to dereference device '0:56'`

[pdc1]

I am new to snapraid, so apologies in advance if I am missing something obvious. Let me know if any additional information would help!

I am running SnapRAID CLI v14.9 on Debian 13 (Trixie) along with SnapRAID daemon 1.14, both downloaded as deb files from snapraid.it.

My system has two BTRFS volumes, each with a subvolume that holds the main content and is used for snapshots. There is also a root drive (ext4) that is not included, and the parity drive (ext4).

I found the configuration that worked for most operations (diff/sync/etc) was to list the BTRFS subvolume as content. See below for my snapraid.conf.

However, commands like devices, probe, and smart fail:

Failed to dereference device '0:56'.
Device listing is unsupported in this platform.

I cannot find any such device on my system.

lsblk -o NAME,MAJ:MIN,FSTYPE,MOUNTPOINTS reports:

NAME   MAJ:MIN FSTYPE MOUNTPOINTS
sda      8:0   btrfs  /srv/dev-disk-by-uuid-5b432f1f-42c2-4c84-aad0-cfcbae0e8949
sdb      8:16         
├─sdb1   8:17  ext4   /
├─sdb2   8:18         
└─sdb5   8:21  swap   [SWAP]
sdc      8:32         
└─sdc1   8:33  ext4   /srv/dev-disk-by-uuid-abdcbb6d-61ad-4e56-94bb-c5aa7bee2e7e
sdd      8:48  btrfs  /srv/dev-disk-by-uuid-4a47039a-baee-4d7b-86c9-7f7a739b484d

I am able to use the primary commands like diff and sync manually, but the daemon is seeing errors:

Maintenance report:

HEALTH:  [passed]
STATUS: All nominal
BAD BLOCKS: 0

DATA DISKS
Share [OK]     200704A00366
Media [OK]     21102M802086

PARITY DISKS
parity [OK]  4% S3YUNB0K803205F

SYNC: CANCELED
!! The preceding up operation failed with exit code 1
Duration: 0s

SCRUB: CANCELED
!! The preceding up operation failed with exit code 1
Duration: 0s

Maintenance sync and scrub both report:

The preceding up operation failed with exit code 1
No logged messages.

Here is my full snapraid.conf:

# OMV-Name: Share
content /srv/dev-disk-by-uuid-4a47039a-baee-4d7b-86c9-7f7a739b484d/snapraid.content
data Share /srv/dev-disk-by-uuid-4a47039a-baee-4d7b-86c9-7f7a739b484d/share

# OMV-Name: Media
content /srv/dev-disk-by-uuid-5b432f1f-42c2-4c84-aad0-cfcbae0e8949/snapraid.content
data Media /srv/dev-disk-by-uuid-5b432f1f-42c2-4c84-aad0-cfcbae0e8949/media

# OMV-Name: Parity1
parity /srv/dev-disk-by-uuid-abdcbb6d-61ad-4e56-94bb-c5aa7bee2e7e/snapraid.parity

exclude *.unrecoverable
exclude lost+found/
exclude aquota.user
exclude aquota.group
exclude /tmp/
exclude .content
exclude *.bak
exclude /snapraid.conf*

[amadvance]

The 14.x series of SnapRAID has limited support for Btrfs.

This will be fixed in version 15.0. The problem with the daemon is that the "up" command fails due to the lack of Btrfs support, which in turn automatically cancels the "sync" operation. As soon as version 15.0 supports Btrfs, this issue will be resolved as well.

I plan to enter the BETA cycle of 15.0 before the end of the month.

[pdc1]

Thanks for the heads-up!

I have been doing manual diff + sync in the meantime, are those still effective even though the volumes are BTRFS? Or might I need to reconfigure and redo the big sync? Either way is fine, I just want to know what to expect.

[amadvance]

Yes. diff, sync, scrub, fix, and check work fine from the command line on Btrfs as well.

[pdc1]

I see you have been doing a lot of commits over in the daemon repo, is there a beta I could help test for BTRFS support?