Now currently i’m using flatpak version from official steam flathub. But whatever game, i want to backup, still failed. Has anyone faced this issues? SELinux already set to permissive temporary (by setenforce 0)
Any clues?
after i search and scroll for the similliar issue, i’ve faced… i found github open issue
is this related issue, is this a bug? or i need to config something? for now i can’t log-in to github, bcs my phone is broken, and my 2FA is on my broken phone… So, that’s why i can’t know the solution or any reply below
san@NBA:~> grep -rni “AC Unity” ~/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/console-linux.txt:28338:[2026-03-23 00:20:03] flock /run/user/1000/doc/bace1591/Documents/Watch_Dogs/243437_depotcache_1.csm LOCK_SH failed. errno = 38flock /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csm LOCK_SH failed. errno = 38wine: using kernel write watches, use_kernel_writewatch 1.
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/console-linux.txt:28444:[2026-03-23 03:51:12] flock /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csm LOCK_SH failed. errno = 38flock /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csm LOCK_SH failed. errno = 38[2026-03-23 03:52:25] Background update loop checking for update. . .
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:7928:[2026-03-23 00:20:44] Building backup for AppID 289650 to /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:7929:[2026-03-23 00:20:44] Backup for AppID 289650 failed : Disk write failure (Failed to open chunkstore /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csd for writing)
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:7971:[2026-03-23 03:51:09] Building backup for AppID 289650 to /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:7973:[2026-03-23 03:51:12] Backup for AppID 289650 failed : Disk write failure (Failed to open chunkstore /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csd for writing)
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:7992:[2026-03-23 03:52:16] Building backup for AppID 289650 to /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:7993:[2026-03-23 03:52:16] Backup for AppID 289650 failed : Disk write failure (Failed to open chunkstore /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csd for writing)
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:8001:[2026-03-23 04:16:49] Building backup for AppID 289650 to /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity
/home/san/.var/app/com.valvesoftware.Steam/.local/share/Steam/logs/content_log.txt:8002:[2026-03-23 04:16:49] Backup for AppID 289650 failed : Disk write failure (Failed to open chunkstore /run/user/1000/doc/f0496625/AC Unity/Assassin's Creed Unity/289651_depotcache_1.csd for writing)
Did you try another backup directory? The path below /run/user/1000/doc/... is not user writeable…
@13ihsan92 I suspect if you fire up Flatseal and allow/set a directory for it to backup to would also suffice.
Allright sir, i’ll set up flatseal today. Bcs, i need to backup my games to different dir
just to be sure,
they don’t hide in hidden folder, that starts with a “.” in the name?
have you tried show hidden files?
home/san/.var ?
Not the issue here. See first screenshot, error description and non writable path…
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