[GLLUG] problem with grub

[Ben Whyall]

Hi

I have a problem I rebooted my desktop and its coming up with the following

gave up waiting for root device

alert /dev/disk/by-uuid-15e0064a.... does not exist.

Dropping to shell.

Now my /boot is on a raid partition
/root and the others are on lvm2

When I look in the lvm in the shell it suggests that the lvm is inactive.

I have tried using a live disk to rebuild grub but I must be missing the 
correct command fu.

Anyone got any suggestions

Ben