>Tim said:
>Simple answer: If you manage to access the second drive, just copy the
>part in its /boot/grub/grub.conf file for booting its fedora (the four
>ines starting from the "title" one) into the first drives grub.conf
>file. The hardest part about that for a newcomer is how to access that
>file.
Thank you Tim, Anil Kumar Sharma, and everyone. A simple answer but
clear, and understandable.
I used the rescue cd. On the command line:
chroot /mnt/sysimage
then:
nano /boot/grub/grub.conf
I copied (the four lines starting from the "title" one) into the first
drives grub.conf
file. This is what I found:
(snip)
title Fedora Core 5 (2.6.15-1.2054_FC5)
root (hd1,0)
kernel /vmlinuz-2.6.15-1.2054_FC5 ro root=/dev/VolGroup01/LogVol00 rhgb quiet
initrd /initrd-2.6.15-1.2054_FC5.img
(/snip)
This is the /boot/grub/grub.conf file on the first drive after I
finished copying and adding the new Fedora Core 5 entry:
(snip)
# 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
default=0
timeout=20
splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
title Memtest86+ v1.65
kernel /memtest86+-1.65
title Fedora Core 3 (2.6.11-11_FC3asl)
root (hd0,0)
kernel /vmlinuz-2.6.11-11_FC3asl ro root=/dev/VolGroup00/LogVol00
initrd /initrd-2.6.11-11_FC3asl.img
title Fedora Core 5 (2.6.15-1.2054_FC5)
root (hd1,0)
kernel /vmlinuz-2.6.15-1.2054_FC5 ro root=/dev/VolGroup01/LogVol00 rhgb quiet
initrd /initrd-2.6.15-1.2054_FC5.img
(/snip)
On a 2 drive sata, 2 os (one on each drive), using LVM partitions this
works. It seems grub reads all the grub.conf files on all /boot
parttions on all the hard drives but bases the grub boot screen info
from the first drive. In my case:
boot=/dev/sda
See the header at the top of the grub.info file.
anaconda wrote:
(snip)
# 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
(/snip)
All the other boot partition
/boot/grub/grub.conf
files point to the first with a "chainloader" entry like this:
(snip)
title Fedora Core 3
rootnoverify (hd0,1)
chainloader +1
(/snip)
I hope I'm correct and this helps others.
-ron-
