switching grub from one hd to another...
 

I just moved everything from one harddrive to another, but grub still reads from the first, how do I make the MBR read the menu.lst from the second harddrive?

And a second question if you're reading, is there a good application that makes a recovery cd? and if so how to use...

Thanks,
Gary

Can you boot into your other hard drive at all? Do you have a live cd or something to boot into your linux system. You basically need to reinstall grub and point it in the right direction. Look at partimage for backing up.

Presumably you aren't moving the disks around - i.e. the original disk is still hd0.

If so, merely re-install grub to the MBR (of hd0, by definition) with the root pointing to a directory (usually / or /boot) on hd1.

Don't know how Debian handles such things, but from the grub point of view, all this is simple to achieve.

As for recovery, I thought all distros did it from the install CD - or one of them for the mega-distros.

Thanks for the responses... The Debian discs if there is a recover mode is not mentioned when they bootup, Everything from the discs leads to installation, the best I can get it a shell, but I can't mount any of my devices. As far as reinstalling grub, when I remvove grub and then reinstall, there is no config interface brought up. I'm running debconf grub right now, whether or not that will do anything I don't know, it's been probing devices for a while now.

You have successfully re-installed grub, and when you boot, it comes up to a grub prompt ??.

If so, then good. Looks like you don't have a grub.conf - not surprisingly.
At the prompt, enter all the commands you would normally have in the grub.conf, one line at a time - hitting enter after each line. Only the releveant lines for the system of interest to be entered - skip the splash, and any other systems, and comments of course.
When finished, enter boot on a line by itself and hit enter.

Should be flying. Set up a grub.conf - should be a grub.conf.example shipped I think, and you're away.

Next time do grub before you blow everything away. ;)

Oh you misunderstood, I didn't blow it away, grub was just using my menu.lst from the other harddrive, in any case, I just had to run grub-install from the second harddrive and it worked. I don't have grub.conf, that's a lilo thing I think.

As far as the recovery disk, I just wanted to know, just in case.

Glad to hear it all came good. As for grub.conf, have a look at another post of mine here.
Hopefully will convey the relationship.