> Do I have an old, small drive that I boot from, and a big drive that my entire system is on.
> I'd like to get rid of the old, small drive that no longer has any real function except booting.
> when I boot, the old, small drive ends up being /dev/sdb, and the big one is /dev/sda.
> So I did
>     grub-install /ev/sda
> It seemed to go well.
> But when I disconnected the old, small drive, and tried booting,
> it did manage to start bootine, but got stuck in the initramfs conplaining that it could not fine volume group VG1.
> Now that's the volume group that my entire system is on, except for /boot.  It's kind of essential.
> And VG1 is on dev/md1, a currently defective RAID1 whose one good partition is /dev/sda2.
> Npw the boot process recognised /dev/md1 properly, but coule not find VG1,
> so initramfs tossed me into busybox so as to fix the problem.