Ok, so I did an apt-get -u dist-upgrade, and it errors out with this: dpkg: error processing /var/cache/apt/archives/linux-headers-3.2.0-56-generic-pae_3.2.0-56.86_i386.deb (--unpack): unable to create `/usr/src/linux-headers-3.2.0-56-generic-pae/include/config/pppoatm.h.dpkg-new' (while processing `./usr/src/linux-headers-3.2.0-56-generic-pae/include/config/pppoatm.h'): No space left on device So yeah, it can't create that file because no space left on device. Except there's plenty of space left on device: root at tiger:/# df -h /usr/src/ Filesystem Size Used Avail Use% Mounted on /dev/sda5 4.0G 1.8G 2.0G 47% /usr In fact there's no filesystem on this machine that's even close to full. Here are the 'real' filesystems: Filesystem Size Used Avail Use% Mounted on /dev/sda3 4.0G 1.2G 2.6G 32% / /dev/sda8 9.9G 151M 9.2G 2% /tmp /dev/sda1 504M 98M 382M 21% /boot /dev/sda7 4.0G 1.8G 2.0G 48% /home /dev/sda5 4.0G 1.8G 2.0G 47% /usr /dev/sda6 4.0G 455M 3.3G 12% /var /dev/sda9 2.0G 70M 1.9G 4% /usr/local I can manually create the files it wants, too. Anyone have any ideas? --