Package: systemd Version: 252.4-1 Severity: important
Systemd mounts the /run tmpfs filesystem at bootup with a given/calculated size (I assume ~ 10% of free memory?). The problem is, that this size needs to be at least 16MB (probaly better 20MB), because otherwise systemd refuses to reload when exiting emergency mode. I noticed that problem on my hppa machine. It has 160MB RAM (which is not much of course). Anyway, on this machine systemd had mounted /run at bootup with ~15MB: tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=14812k,mode=755) During bootup the system failed to mount some other drive and thus fell into emergency mode. I then entered the password to enter the shell, mounted the drive and exited the shell to continue with normal bootup, but then systemd reported: ... Reloading system manager configuration Failed to reload daemon: Refusing to reload, not enough space available on /run/systemd. Currently, 14.2M are free, but a safety buffer of 16.0M is enforced. Starting default.target ... My suggestion: Please check that the /run mountpoint is mounted with at least 20MB, independend of the installed RAM memory in the machine... Thanks! Helge
