“df -l” returned an error: “df: cannot read table of mounted file systems”. I looked at my “/etc/mtab” file – empty! I did a “fdisk -l” and saw my partitions there, then proceeded to create a new mtab from my /proc/mount:
grep -v rootfs /proc/mounts > /etc/mtab
Error message: no space left on the device!
Ran out of room… my SQL dumps are taking a lot of space 🙁 Freed up some space and executed the command again – df is now returning what it’s supposed to return.