Hardy->Karmic booting locked-room mystery

[Alan Pope]

2010/1/15 David Gerard <dgerard at gmail.com>:
> Ubuntu is deeply, deeply incompetent with regards to dist-upgrades, in
> any case, including the "supported" ones, so that's not really a
> relevant consideration.
>

Don't dist-upgrade if don't have confidence in them. Use the tools
provided - update-manager and do-release-upgrade.

> The question is how to get grub to tell there's actually a disk there.
>

Boot machine to grub menu using shift, highlight most recent recovery
kernel line, press e to edit, go down to where the UUID is mentioned
(linux line), change root=UUID=blablahblah to root=/dev/sda2 (or
whatever your linux partition is), press ctrl+x to boot.

Cheers,
Al.