Comment 5 for bug 986797

Examining the contents of VarLogDistupgradeApttermlog.gz I see the following:

update-initramfs: Generating /boot/initrd.img-3.2.0-23-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.2.0-23-generic /boot/vmlinuz-3.2.0-23-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.2.0-23-generic /boot/vmlinuz-3.2.0-23-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.2.0-23-generic /boot/vmlinuz-3.2.0-23-generic
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
run-parts: /etc/kernel/postinst.d/zz-update-grub 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

Which seems to indicate this is actually an error with grub. I'm going to mark this as a duplicate of bug 916077 for now and will follow up with the release team regarding this issue. Please continue to follow 916077 for this issue. Thanks.