Oops chose the wrong disk for grub while upgrading and system wouldn’t boot. Inserted the Super Grub Disk I keep handy for such eventualities and this allowed me to boot into Ubuntu 10.04.
At the command-line I then entered:
At the command-line I then entered:
sudo grub-install /dev/sdb
I had chosen the first disk sda during the upgrade but a:
df -h
sudo fdisk -l
showed me that it should have been sdb.