In my case there is definitely space on the device but installator crashes anyway:
root@ubuntu:/var/log# cat syslog |grep space Oct 23 10:56:40 ubuntu kernel: [ 27.082465] ppdev: user-space parallel port driver Oct 23 12:00:39 ubuntu ubiquity: Compiling /usr/share/python/debpython/namespace.py ... Oct 23 12:02:28 ubuntu ubiquity: unable to install new version of `/usr/src/linux-headers-3.0.0-12-generic/include/config/pata/cs5536.h': No space left on device But there is 15 GB available: root@ubuntu:/var/log# df -h /target/usr/src/ Filesystem Size Used Avail Use% Mounted on /dev/sda1 19G 2.3G 15G 14% /target What is interesting is this: root@ubuntu:/var/log# ls -l /usr/src/linux-headers-3.0.0-12-generic/ ls: cannot access /usr/src/linux-headers-3.0.0-12-generic/: No such file or directory -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/220961 Title: [MASTER] ubiquity crashes instead of notifying the user of not enough disk space To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/220961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs