Re: Can't boot REDHAT since Mandrake 9.1 installed a new LILO

[Albert DE WINT <adwint pandora be>]

On Tuesday 03 June 2003 21:34, Mark Knecht wrote:
> On Tue, 2003-06-03 at 11:56, Albert DE WINT wrote:
> > I figured it out, here's my conclusion:
> >
> > hda1	NTFS (WinXPp
> > hda2 	deleted
> > hda3	deleted
> > hda4	Win 95 Ext'd (LBA)
> > hda5	Mandrake (ext3) (contains only: ./ ../ )
> > hda6	Redhat 9 (contains the 3 different RH kernels and much more stuff)
> > hda7	Redhat 9 (contains bin/ boot/ ...and much more stuff)
> > hda8 	swap
> > hda9	swap
> > hda10	Mandrake (ext3)
> >
> > > One last thing - did Mandrake install LILO or grub?
> >
> > Mandrake installed LILO (graphical version)

I had not much of a choice; the Mandrake installer reported it did not find 
any present GRUB, so it installed LILO by default.
>
> I guess you are sure that Mandrake installed LILO? OK, so you have a few
> things to do. My experiences over the last few days tell me that I need
> to fix three things every time this happens:
>
> 1) Reinstall grub itself. I'm not sure if this is appropriate for you
> with LILO. You might switch to grub on your master partition is someone
> like Rick or Bob weighs in and can provide some help.

Thanks Mark.  
I guess I'd better not touch anything, before I know exactly what I'm doing.
I don't want to blow-up LILO as well.

> 2) Rework grub.conf to point at the correct disk partitions. In your
> case you would add new options to point at Redhat. Pretty much copy the
> Mandrake lines, but give them new names, point at the right kernels, and
> change the drive partition numbers to point at hda6 and hda7. The boot
> partition is hda6 and the root partition is hda7. You should check this.
> hda6 should be pretty small, while hda7 will be much larger.

hda6 is 104391 blocks (contains kernels)
hda7 is 42540088 blocks (contains bin/ boot/ ... )
>
> 3) Having some that, you would then need to mount hda7, cd to
> /mnt/hda7etc and edit Redhat's fstab file to fix up the partition
> numbers it's pointing at.
>
>    All of this is actually very easy to so WITH THE GENTOO INSTALLATION
> CD, but I'm not so sure about the Redhat CD. Gentoo's CD is a live Linux
> installation, so you can boot it, run Linux, and chroot into the Redhat
> installation to fix things. I used it for fixing Redhat, Gentoo and
> Mandrake last night, so it does work. Whether you want to bother
> downloading and burning a copy is up to you. The small one is only
> 40-50MB. I use the larger one that's about 250MB.
>
I crossed my mind, I could reinstall RedHat from scratch, but I suppose that 
would make Mandrake unaccessible?  That would be like a neverending story.

>    You could probably also to this with something like 'Tom's Root Boot'
> floppy. (tomsrtbt)

>    I then we should see how to best fix this from others, but as I say,
> I had to do the same thing last night. Don't be embarrassed!
>
> - Mark
>