[SOLVED] (Bubblewrap) "bwrap: Creating new namespace failed: No space left on device"

arfon · 01-06-2023, 05:38 AM

Installed Flatpak.... All flatpaks were failing as a regular user but working as root. The error was:

Code:

bwrap: Creating new namespace failed: No space left on device

The reason: max_user_namespaces was set to 0 so Bubblewrap was returning an error.

The fix:

Code:

sudo sysctl -w user.max_user_namespaces=10000

drumz · 01-06-2023, 08:26 AM

Interesting. I don't think I changed the default and my system (Slackware64 15.0) returns:

Code:

# sysctl user.max_user_namespaces
user.max_user_namespaces = 2062241

Nothing in my /etc/sysctl.d/* touches user.max_user_namespaces.

arfon · 01-07-2023, 04:46 AM

I'm running a 2 day old 64-current install and (before I changed it):

Code:

[arfon@darkstar ~]$ cat /proc/sys/user/max_user_namespaces
0
[arfon@darkstar ~]$