dual boot fc4 and rawhide

[Xavier Toth]

I added the suggested "Development" title to my /boot/grub/grub.conf
but when I select it I get:  Error 13: Invalid or unsupported
executeable format
"chainloader" reads the sector ("+1" ) of the root in my case hd1,0 is
this the correct sector? One thing I didn't mention is that I'm using
SATA drives.

On 8/4/05, Jim Cornette <fc-cornette at insight.rr.com> wrote:
> Xavier Toth wrote:
> 
> >I want to dual boot FC4 and Rawhide . So far I've added a second disk
> >to my system
> >which I recently upgraded to FC4. I actually disconnected the original
> >disk and installed FC4 on the new one letting the installer partition
> >the disk. Now I've reconnected the original disk and am trying to
> >configure grub to allow me to boot off either disk. I added an entry
> >to device.map for the new disk (hb1 /dev/sdb) and copied the stuff in
> >grub.config and changed the titles and root commands (root (hb1,0))
> >for the new disk. Unfortunately it only ever boots off the original
> >disk even when I use one of my new titles. This may not have been the
> >best way to approach this problem any advice would be appreciated.
> >
> >grub.conf
> >
> ># grub.conf generated by anaconda
> >#
> ># Note that you do not have to rerun grub after making changes to this file
> ># NOTICE:  You have a /boot partition.  This means that
> >#          all kernel and initrd paths are relative to /boot/, eg.
> >#          root (hd0,0)
> >#          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
> >#          initrd /initrd-version.img
> >#boot=/dev/sda
> >password --md5
> >default=0
> >fallback=2
> >timeout=5
> >splashimage=(hd0,0)/grub/splash.xpm.gz
> >#hiddenmenu
> >title Rawhide (2.6.11-1.1369_FC4smp)
> >       root (hd1,0)
> >       kernel /vmlinuz-2.6.11-1.1369_FC4smp ro root=/dev/VolGroup00/LogVol00
> >rhgb quiet
> >       initrd /initrd-2.6.11-1.1369_FC4smp.img
> >title Rawhide (2.6.11-1.1369_FC4)
> >       root (hd1,0)
> >       kernel /vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
> >       initrd /initrd-2.6.11-1.1369_FC4.img
> >title Fedora Core (2.6.11-1.1369_FC4smp)
> >       root (hd0,0)
> >       kernel /vmlinuz-2.6.11-1.1369_FC4smp ro root=/dev/VolGroup00/LogVol00
> >rhgb quiet
> >       initrd /initrd-2.6.11-1.1369_FC4smp.img
> >title Fedora Core (2.6.11-1.1369_FC4)
> >       root (hd0,0)
> >       kernel /vmlinuz-2.6.11-1.1369_FC4 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
> >       initrd /initrd-2.6.11-1.1369_FC4.img
> >
> >
> >
> The easiest way to boot many different operating systems is to install a
> secondary systems grub into its boot partition. Then from the
> installatiion where grub is installed into the master boot record,
> chainload the secondary installation in much th same way that foreign
> operating systems are booted by grub.
> 
> Chainloader ....
> 
> After your installation installed in the MBR starts to chainload your
> secondary installation, the primary installation is out of the picture
> and each controls their own kernel stanza removals and additions. I boot
> 4 installations this way. (ME, FC3, FC4 and development.)
> 
> For the primary installation add to grub.conf something like the below
> stanza.
> 
> title Development
>         rootnoverify (hd1,0)
>         chainloader +1
> 
> For the secondary installation, run the below command while booted into
> the secondary installation.
> grub-install /dev/hdb1
> 
> Assuming that your boot partition is located on the first partition of
> your secondary drive.
> 
> Hopefully this will give you some clues as how to achieve this.
> 
> Jim
> 
> --
> Eat drink and be merry, for tomorrow they may make it illegal.
> 
>