Hi Camaleón, Thank you for your answer, but I still think physical hard drive space is not the problem.
Anyway, as you asked, I freed some space : $ df -h Filesystem Size Used Avail Use% Mounted on rootfs 153G 101G 45G 70% / udev 1.9G 0 1.9G 0% /dev tmpfs 390M 408K 390M 1% /run /dev/disk/by-uuid/d30adeed-998c-4f8b-b25c-185113da1cda 153G 101G 45G 70% / tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 780M 240K 779M 1% /tmp tmpfs 780M 76K 780M 1% /run/shm And I still have the messages : May 6 13:57:10 crapaud64 console-kit-daemon[2564]: WARNING: Failed to add monitor on '/dev/tty1': No space left on device May 6 13:57:11 crapaud64 console-kit-daemon[2564]: WARNING: Failed to add monitor on '/dev/pts/1': No space left on device May 6 13:57:40 crapaud64 console-kit-daemon[2564]: WARNING: Failed to add monitor on '/dev/tty1': No space left on device May 6 13:57:41 crapaud64 console-kit-daemon[2564]: WARNING: Failed to add monitor on '/dev/pts/1': No space left on device I'll continue to search the web for those messages, and if I find an answer or an explanation elsewhere, I'll forward it to this list. Greetings, Sebastien