http://www.unix.com – I am running a build on Jenkins and I get: No space left on device But when I do df, I get: Code: Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/ROOT 19249724 18267492 4380 100% / udev 1457152 4 1457148 1% /dev tmpfs 587000 372 586628 1% /run none 5120   (HowTos)