Very Dumb Question : I have tried about four times now, using an old pentium2 with two hard drives (20 GB and 30 GB) to install both CentOS 4.4 and Fedora Core 6 in such a way as to enable dual-boot between them.
I've tried it by installing 4.4 first, and then FC6. I've tried it by installing FC6 first, and then 4.4. I've tried it with and without giving the installer permission to use both drives.
I always end up with ability to boot only to one OS, usually the one installed last. Between tries I wipe both drives with DBAN.
Surely there must be something I'm doing wrong, obvious to many but not to me. Clue, please?
Beartooth wrote:
Very Dumb Question : I have tried about four times now, using an old pentium2 with two hard drives (20 GB and 30 GB) to install both CentOS 4.4 and Fedora Core 6 in such a way as to enable dual-boot between them.
I've tried it by installing 4.4 first, and then FC6. I've tried it by installing FC6 first, and then 4.4. I've tried it with and without giving the installer permission to use both drives.
I always end up with ability to boot only to one OS, usually the one installed last. Between tries I wipe both drives with DBAN.
Surely there must be something I'm doing wrong, obvious to many but not to me. Clue, please?
Just look in the /boot/grub directory. You'll find a file called grub.conf. Probably this only contains one option for the OS installed last. If a file called grub.conf.bak exists as well, copy the lines from there. The /boot folder probably contains the images for both FC6 and Centos.
This works if you choose the same boot partition for boot installations (a small 100MB dedicated /boot partition is more than enough) and if you use the /boot partition without clearing when you do the second installation.
Please note that the paths in grub.conf are relative to /boot, not to /
Good luck.
On Sun, 21 Jan 2007, Theo Band wrote:
Just look in the /boot/grub directory. You'll find a file called grub.conf. Probably this only contains one option for the OS installed last. If a file called grub.conf.bak exists as well, copy the lines from there. The /boot folder probably contains the images for both FC6 and Centos.
This works if you choose the same boot partition for boot installations (a small 100MB dedicated /boot partition is more than enough) and if you use the /boot partition without clearing when you do the second installation.
Please note that the paths in grub.conf are relative to /boot, not to /
Good luck.
You will probably have to fix the "LABEL=/usr" syntax with explicit device names as well in /etc/fstab for each OS.
ie /dev/hda1 /boot ..... instead of LABEL=/boot /boot .....
since both drives will have a partition labeled /boot. ------------------------------------------------------------------------ Jim Wildman, CISSP, RHCE jim@rossberry.com http://www.rossberry.com "Society in every state is a blessing, but Government, even in its best state, is a necessary evil; in its worst state, an intolerable one." Thomas Paine
Jim Wildman spake the following on 1/21/2007 1:09 PM:
On Sun, 21 Jan 2007, Theo Band wrote:
Just look in the /boot/grub directory. You'll find a file called grub.conf. Probably this only contains one option for the OS installed last. If a file called grub.conf.bak exists as well, copy the lines from there. The /boot folder probably contains the images for both FC6 and Centos.
This works if you choose the same boot partition for boot installations (a small 100MB dedicated /boot partition is more than enough) and if you use the /boot partition without clearing when you do the second installation.
Please note that the paths in grub.conf are relative to /boot, not to /
Good luck.
You will probably have to fix the "LABEL=/usr" syntax with explicit device names as well in /etc/fstab for each OS.
ie /dev/hda1 /boot ..... instead of LABEL=/boot /boot .....
I think the installer will append a number to the named partitions if it detects one already exists. First install will create boot, next install would create a boot1, etc...
Scott Silva wrote:
ie /dev/hda1 /boot ..... instead of LABEL=/boot /boot .....
I think the installer will append a number to the named partitions if it detects one already exists.
I don't.
First install will create boot, next install would create a boot1, etc...
I don't think that at all. You should test it:-)
-
Beartooth -
Jim Wildman -
John Summerfield -
Scott Silva -
Theo Band