On Fri, Jan 10, 2003 at 09:54:53PM -0500, Smitty wrote:
> On Friday 10 January 2003 20:42, you wrote:
> > Is it possible to have dual boot system using two
> > different drives instead of both OS's on the same?
>
> Ian Blenke gave this info in a thread several monthes back using a logical
> configuration. You can also do it with a Trios switch or a Nicklock switch
> as hardware solutions.
> Smitty
Simply put, you need to:
1. Put your Windows drive in as master on the first bus (/dev/hda)
2. Put your Linux drive in as master on the second bus (/dev/hdc)
3. Boot from a Rescue floppy or CDROM (ie, RedHat "linux rescue")
4. Mount your root filesystems somewhere:
(you may need to mount /usr as well if your rescue doesn't
have chroot)
# mkdir /tmp/target
# mount /dev/hdb3 /tmp/target
If you don't have chroot on your rescue disk:
# mount /dev/hdb4 /tmp/target/usr
# PATH=/tmp/target/usr/sbin:$PATH
Either way:
# chroot /tmp/target
5. Edit your /etc/fstab file inside the chrooted shell:
# vi /etc/fstab
Change all filesystem references from /dev/hda to /dev/hdc, ie:
/dev/hdc1 /boot ext3 defaults 0 0
/dev/hdc3 / ext3 defaults 0 0
/dev/hdc4 /usr ext3 defaults 0 0
...
and so on.
6. Do the same for your bootloader.
For lilo:
# vi /etc/lilo
Change the line for your linux image "root=" option, and
add an other= section for your dos partition:
boot=/dev/hda
root=/dev/hdc3
image=/vmlinuz
label=Linux
read-only
other=/dev/hda1
label=dos
Then re-run lilo, and make SURE it doesn't give you any
errors. You can use multiple -v flags for debugging, ie:
# lilo -v
For grub:
# mount /boot
# vi /boot/grub/menu.lst
# umount /boot
Follow the below grub HOWTO. (Note: you do not need to
re-install grub, merely edit the menu.lst file).
>From a quick google, here's a HOWTO for grub:
http://www.andrewsenior.com/linux/grub.html
and here's a mini-howto for RedHat and lilo that may help you:
http://www.linux.org/docs/ldp/howto/mini/Hard-Disk-Upgrade/
Also, check TLDP (the Linux Documentation Project, aka LDP)
http://www.tldp.org/HOWTO/HOWTO-INDEX/os.html#OSBOOT
I haven't found a HOWTO that addresses your specific problem.. and it's
a common one. That bothers me.
Anyone familiar with the process of submitting new HOWTO content to LDP?
- Ian
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