Re: add new Linux on new Hard Drive

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On Tuesday 01 August 2006 15:34, Nigel Henry wrote:
> On Tuesday 01 August 2006 13:54, Victor L. wrote:
> > I have a dual boot (Wondows/FC 5) system using one partioned hardrive.
> > I have added a second hard drive and would like to add FC 5 to the new
> > drive before erasing old version. Want to dedicate the new drive to
> > Linux.  Installation works fine but the grub process does not. When I
> > reboot, Grub only shows the old Linux (as well as Windows.)  Howver,
> > Linux Rescue lets me choose between the two Linux installations.  Being
> > able to boot to just the new drive would be fine.
> >
> > Any suggests, references.  Thx
>
> Hi Victor. Where did you put Grub for the new FC5 on the second haddrive?
> You should have put it in the MBR of hda (presuming that's the first
> harddrive). This would have resulted in getting the Grub menu for Grub on
> the new FC5 install at bootup, which should also have a chainloader set up
> for Windows, but not for the old FC5 on hda, as the old Grub would have
> been overwritten by the new one.
>
> You probably know this, but just in case. To put Grub from the new FC5 into
> the MBR of hda (the one with Windows on it), bootup the rescue disc, select
> the / partition of the new FC5 which gets you into a /mnt/sysimage
> environment. Then type, chroot /mnt/sysimage, then grub-install hda. Exit
> twice (I think), then reboot the machine, removing the rescue disc.
>
> If you still want to boot the old FC5 on hda, theres a bit more work to be
> done. Presuming that you now are able to boot into the new FC5, and know
> the / partition, or /boot partition, if you have a separate one for the old
> FC5 on hda, open a terminal, su to root, open a text editor (your choice),
> and go to /boot/grub/grub.conf .  We'll add a chainloader to link to Grub
> for the old FC5. Presuming you only have a / partition for the old FC5, the
> chainloader will look like this.
>
> title  Old FC5
> root (hda,x)                 (changing "x" for the / partition)
> chainloader +1
>
> Save, and exit the text editor, and terminal.  Shut down the machine. 
> Using the rescue disk once more, this time go to the / partition of the old
> FC5 on hda, chroot /mnt/sysimage, then, grub-install hdax , changing "x" to
> the / partition of the old FC5. Exit the chrooted environment, remove the
> disc, and reboot. Now when you reboot, you'll get the new FC5s Grub, and
> can try out the chainloader to link to the Grub you've just installed on
> the / partition of the old FC5. You should now have the old FC5s, Grub
> menu, and can boot the old one.
>
> While you were in grub.conf, it is usefull to change a few things. Change
> timeout to 30.  Put a # in front of Hiddenmenu, and remove the "rhgb quiet"
> from the end of the kernel entries, which will allow you to see all the
> text on bootup.
>
> All the best.
>
> Nigel.

Apologies.

I forgot the /dev  on the grub-install command.

Thanks Jeff. I'd mislaid the bit of paper with all the commands on it.

Nigel.


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