Setting up bootchart (0.90.2-8ubuntu1) ...
 Removing any system startup links for /etc/init.d/zzz-bootchart-stop ...
 Removing any system startup links for /etc/init.d/stop-bootchart ...
update-initramfs: Generating /boot/initrd.img-3.2.0-23-generic-pae
cryptsetup: WARNING: failed to detect canonical device of overlayfs
cryptsetup: WARNING: could not determine root device from /etc/fstab
lzma: (stdin): Cannot allocate memory
dpkg: error processing bootchart (--configure):
 subprocess installed post-installation script returned error exit status 1