TerraMaster Forum

Hi,

I have the filesystem snapshot enabled, but in a recent update it was disabled so I went to the control panel, enabling it, but I receive an error:



rather in the terminal if I type

btrfs subvolume list /Volume1

it shows the snapshots, looks like the UI cannot read anymore the directory

ID 19738 gen 976386 top level 5 path @syssnapshot/Snap/GMT+02-2026.06.16-12.00.00
ID 19739 gen 976382 top level 19738 path @syssnapshot/Snap/GMT+02-2026.06.16-12.00.00/homes
ID 19740 gen 976383 top level 19738 path @syssnapshot/Snap/GMT+02-2026.06.16-12.00.00/@system
ID 19741 gen 976384 top level 19738 path @syssnapshot/Snap/GMT+02-2026.06.16-12.00.00/@apps
ID 19742 gen 976385 top level 19738 path @syssnapshot/Snap/GMT+02-2026.06.16-12.00.00/@desktop
ID 19743 gen 976386 top level 19738 path @syssnapshot/Snap/GMT+02-2026.06.16-12.00.00/@cache
ID 19744 gen 976809 top level 5 path @syssnapshot/Snap/GMT+02-2026.06.16-16.00.00
ID 19745 gen 976805 top level 19744 path @syssnapshot/Snap/GMT+02-2026.06.16-16.00.00/homes
ID 19746 gen 976806 top level 19744 path @syssnapshot/Snap/GMT+02-2026.06.16-16.00.00/@system
ID 19747 gen 976807 top level 19744 path @syssnapshot/Snap/GMT+02-2026.06.16-16.00.00/@apps
ID 19748 gen 976808 top level 19744 path @syssnapshot/Snap/GMT+02-2026.06.16-16.00.00/@desktop
ID 19749 gen 976809 top level 19744 path @syssnapshot/Snap/GMT+02-2026.06.16-16.00.00/@cache
ID 19750 gen 977235 top level 5 path @syssnapshot/Snap/GMT+02-2026.06.16-20.00.00
ID 19751 gen 977231 top level 19750 path @syssnapshot/Snap/GMT+02-2026.06.16-20.00.00/homes
ID 19752 gen 977232 top level 19750 path @syssnapshot/Snap/GMT+02-2026.06.16-20.00.00/@system
ID 19753 gen 977233 top level 19750 path @syssnapshot/Snap/GMT+02-2026.06.16-20.00.00/@apps
ID 19754 gen 977234 top level 19750 path @syssnapshot/Snap/GMT+02-2026.06.16-20.00.00/@desktop
ID 19755 gen 977235 top level 19750 path @syssnapshot/Snap/GMT+02-2026.06.16-20.00.00/@cache

Hi,

when opening the WEB interface, in the syslog appears:

cat /var/log/syslog | grep snapshot

kernel: [49656.526324] audit: type=1400 audit(1784278980.685:327): lsm=SMACK fn=smack_inode_permission action=denied subject="tos-22d2" object="tos-ce15" requested=r pid=3007 comm="TOSDaemon" name="@syssnapshot" dev="dm-0" ino=257
kernel: [49656.526370] audit: type=1400 audit(1784278980.685:328): lsm=SMACK fn=smack_inode_permission action=denied subject="tos-22d2" object="tos-ce15" requested=r pid=3007 comm="TOSDaemon" name="@syssnapshot" dev="dm-1" ino=257
TOSDaemon[3007]: GetSnapshotTasks volume=Volume1 err=open /var/subvols/8vEbTxkKvwa/@syssnapshot: permission denied
TOSDaemon[3007]: GetSnapshotTasks volume=Volume2 err=open /var/subvols/8vEbTxkKvwb/@syssnapshot: permission denied
kernel: [49656.580539] audit: type=1400 audit(1784278980.740:329): lsm=SMACK fn=smack_inode_permission action=denied subject="tos-22d2" object="tos-ce15" requested=x pid=3007 comm="TOSDaemon" name="@syssnapshot" dev="dm-0" ino=257

checking the directory permission appears:

drwxr-xr-x 1 riccardo riccardo 26 Jan 15 2025 ./
drwxr-xr-x 4 riccardo riccardo 4096 Jun 25 23:48 ../
drwxr-xr-x 1 riccardo riccardo 118 Mar 18 2025 '@'/
d????????? ? ? ? ? ? '@syssnapshot'/

Hi,

I fixed the issues in this way, adding the tos-22d2 "rwa" grants access to tos-ce15 inside /etc/spcack/accesses.d and volià directory accessible now from the UI and terminal. Ticket to close.