Timeshift breaks mount partitions

[koshikas]

setup;

Summary

Drives:
Local Storage: total: 1.82 TiB used: 69.22 GiB (3.7%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda maj-min: 8:0 vendor: Crucial model: CT1000MX500SSD1
size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
type: SSD serial: rev: 033 scheme: GPT
ID-2: /dev/sdb maj-min: 8:16 vendor: Western Digital model: WD10JPVT-75A1YT0
size: 931.51 GiB block-size: physical: 4096 B logical: 512 B speed: 3.0 Gb/s
type: HDD rpm: 5400 serial: rev: 1A01 scheme: GPT
Partition:
ID-1: / raw-size: 140.44 GiB size: 137.98 GiB (98.25%)
used: 15.52 GiB (11.2%) fs: ext4 dev: /dev/sda8 maj-min: 8:8
ID-2: /boot/efi raw-size: 100 MiB size: 96 MiB (96.00%)
used: 25.5 MiB (26.5%) fs: vfat dev: /dev/sda2 maj-min: 8:2
ID-3: /home raw-size: 200 GiB size: 195.8 GiB (97.90%) used: 2.22 GiB (1.1%)
fs: ext4 dev: /dev/sda9 maj-min: 8:9

NAME MOUNTPOINT LABEL FSUSED FSAVAIL FSUSE% FSSIZE UUID
sda
├─sda2 /boot/efi 25.5M 70.5M 27% 96M 4E3C-18CB
├─sda8 / MANJARO-SSD 15.5G 115.8G 11% 138G e0d878c7-a550-4927-b2b9-
└─sda9 /home RESERVE-SSD 2.2G 183.6G 1% 195.8G 5c3528c3-550b-4b0d-a071-sdb
├─sdb9 /mnt/reserve RESERVE 51.5G 75.6G 38% 133.9G c89752c9-61aa-47b9-a922-

so yeah i installed timeshift, setup with rsync and snapshots are stored on (sdb9) my hard drive. i use that mount(fstab mounted) to also keep my other downloads.

problem is when i just launch timeshift it messes up mounts;

$ mount | grep /dev/sdb9
/dev/sdb9 on /mnt/reserve type ext4 (rw,nosuid,nodev,noatime,x-gvfs-show)

$ sudo timeshift-gtk

App config loaded: /etc/timeshift/timeshift.json
Mounted '/dev/sdb9' at '/run/timeshift/backup'
App config saved: /etc/timeshift/timeshift.json

$ mount | grep /dev/sdb9

/dev/sdb9 on /mnt/reserve type ext4 (rw,nosuid,nodev,noatime,x-gvfs-show)
/dev/sdb9 on /run/timeshift/backup type ext4 (rw,relatime)

the problem is now when i delete stuff in dolphin, it is moved from HDD to SDD(trash) because the second mount; /dev/sdb9 on /run/timeshift/backup type ext4 (rw,relatime) is in effect.

sudo mount -a

does not fix it. right now it is fixable only by reboot.

[Aragorn]

It is perfectly okay for a device to be mounted at two places at the same time, so long as you also unmount them correctly again. You can even mount directories in two places, as per…

mount --bind /this-dir /another-dir

As for the trash can in Plasma, that’s how it works, and that has nothing to do with Timeshift.

[koshikas]

in bit of brain fade forgot about ‘umount’, had no issues unmounting ‘/run/timeshift/backup’ using it, and its all back to normal

@Aragorn

As for the trash can in Plasma, that’s how it works, and that has nothing to do with Timeshift.

nope, AFAIK on non-system partitons given that the base directory (of partition) is accessible to user, a “.Trash” or “.Trash-$userid” is created to avoid costlier moving of deleted files onto another partiton trash directory whenever possible. refer;

https://specifications.freedesktop.org/trash-spec/trashspec-latest.html

https://archived.forum.manjaro.org/t/kde-dolphin-per-drive-trash-folder/118313