Mikkel L. Ellertson wrote:
bobgoodwin wrote:
I recently installed F-9 using the Gnome LiveCD on a new hard drive.
When I opened the computer case there were only two SATA connectors on
the motherboard so I removed dev/sda and put the new drive in it's
place. The drive removed contained only the original XP which I don't
use and the /boot file. I chose the live cd to save bandwidth since I
am limited as to how much I can use via my satellite connection. I then
obtained what I want via yum.
After the installation finished I found that grub did not offer the F-8
Linux on the dev/sdb as an option. It just wasn't there. I had assumed
the installation would pick it up but didn't. Now a new /boot is on the
new drive.
I the bought an SATA card and installed it with the original drive
[/dev/sdc Windows XP and /boot] to it. I thought I might be able to
maniputlate the bios settings to control the boot situation at least
experimentally as a first step but no, when I go to bios-setup it only
shows two SATA drives with the third drive, the one on the added card,
as just being there with some identifying information but there's no way
I have found to boot from it short of swapping cables between the drives.
I can manipulate things from the command line well enough to copy files.
[mount /dev/mapper/VolGroup00-LogVol00 /mnt] makes the files available
under /mnt but ideally I would like to be able to boot from one or the
other, /dev/sda or /dev/sdc as it stands now. I've looked for
information on grub configuration but none of it is very clear to me.
What would help would be a how to with a few examples of typical grub
configuration files for a multi-boot system.
I guess I'm in over my head. Any suggestions pointing me in the right
direction will be appreciated.
Bob
You may run into problems trying to boot Windows as /dev/sdc - it
sounds like your BIOS does not provide access to it. Because both
Grub and Windows use the BIOS to access the drive, (Windows only
during boot to load the drivers and in safe mode.) if you can not
use the BIOS to access the drive, you are out of luck. You stand a
better chance by making the Windows drive second drive (/dev/hdb),
and F8 as third drive (/dev/hdc), with /boot for it on first drive
(/dev/hda) or second drive (/dev/hdb).
I can swap two cables, restore the Windows drive as dev/sda and then the
new F-9 drive becomes dev/sdc and the computer will boot F-8. And this
is the grub.conf that will then boot F-8. I don't know where the
entries for Windows went? Perhaps they were lost when I upgraded from
F-7 to F-8 not many weeks ago? I rarely look fro Windows and might not
have noticed the loss. As it is I will be happy if I can simply boot
F-8 and F-9 selectively. So from what you are saying I would probably
be better off modifying this grub to deal with the F-9 boot. In which
case do I need a boot file on the F-9 disk? Fdisk will toggle that I
believe.
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd1,0)/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.23.1-42.fc8)
root (hd1,0)
kernel /vmlinuz-2.6.23.1-42.fc8 ro root=/dev/VolGroup00/LogVol00
initrd /initrd-2.6.23.1-42.fc8.img
This is what the F-9 grub.conf file is, presently it shows as /dev/sda
but with the cables swapped it becomes /dev/sdc. I guess what I need is
to combine the two files and hope I don't get into a condition where I
can't boot any o/s! Wish I was knew what i was doing ...
#boot=/dev/sda
default=0
timeout=15
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.25.14-108.fc9.i686)
root (hd0,0)
kernel /vmlinuz-2.6.25.14-108.fc9.i686 ro
root=/dev/VolGroup01/LogVol00 rhgb quiet
initrd /initrd-2.6.25.14-108.fc9.i686.img
title Fedora (2.6.25-14.fc9.i686)
root (hd0,0)
kernel /vmlinuz-2.6.25-14.fc9.i686 ro
root=UUID=23b42fa8-24bb-4d8f-9be6-928cd2e0825b rhgb quiet
initrd /initrd-2.6.25-14.fc9.i686.img
It sounds like you had Grub
installed in the Windows drive. The fastest way to make it work
would be to use the map and chainloader commands of Grub to change
to the second drive, or use the BIOS to boot off of the Windows drive.
Label Other
map (hd0) (hd1)
map (hd1) (hd0)
chainloader (hd0)
You can find out more by running "pinfo grub".
Ok, I will look into info grub and see what I can glean from that.
Depending on your fstab, you may have to edit it to change /dev/sdb?
to /dev/sdc? You may also have to build a new initrd for f8.
Mikkel
Thanks.
Bob
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