Upgrading Woody to Sarge
There is a bug that affects upgrades of LVM2 systems from Woody to Sarge. The solution is to wipe the partition table from your LVM volumes using
dd if=/dev/zero of=/dev/sda bs=512 count=1
where /dev/sda is one of your LVM volumes. Repeat for each LVM volume. No responsibility is taken for loss of data etc. You have been warned. For more details see the Bug Report.