On 01/04/2025 18:31, J wrote:
Apr 01 14:19:20 deb systemd[1]: Failed unmounting mnt-8cd66b97\x2dbde6\x2d4475\x2db875\x2d8f3928a8b14d.mount - / mnt/8cd66b97-bde6-4475-b875-8f3928a8b14d. Apr 01 14:19:20 deb systemd[1]: mnt-8cd66b97\x2dbde6\x2d4475\x2db875\x2d8f3928a8b14d.mount: Mount process exited, code=exited, status=32/n/a
I expect that this mount is a part of local-fs.target, so qbittorrent and other processes started from user session should be stopped already. Log entries after these ones may give a hint what process still have open files residing on this partition.
Is lingering enabled in logind for the user running qbittorrent?