Comment 7 for bug 986632

From VarLogDistupgradeApttermlog.gz:
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.2.0-23-generic /boot/vmlinuz-3.2.0-23-generic
update-initramfs: Generating /boot/initrd.img-3.2.0-23-generic

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-3.2.0-23-generic with 1.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-3.2.0-23-generic.postinst line 1010.
dpkg: error processing linux-image-3.2.0-23-generic (--configure):
 subprocess installed post-installation script returned error exit status 2