In my computer, I installed GRUB in MBR. There are both window 2000 and FC3 systems. In order to chain load the window 2000, I have to use "chainloader 0+1" not "chainloader +1". -----Original Message----- From: fedora-list-bounces@xxxxxxxxxx [mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of Kevin Freeman Sent: 2004年11月16日 10:15 To: For users of Fedora Core releases Subject: Re: Grub Configuration Help On Mon, 2004-11-15 at 18:59 -0600, Chris LaForce wrote: > Hello, > I've just downloaded Fedora Core 3 and installed it on a sencond > hard drive(/dev/hdf). My first hard drive(/dev/hde) has Fedora Core 2 > on it. Here is the grub.conf file: title Fedora Core 2 (2.6.8-1.521) > root (hd0,0) > kernel /vmlinuz-2.6.8-1.521 ro root=LABEL=/ rhgb quiet > initrd /initrd-2.6.8-1.521.img > > What do I need to add to it to be able to also boot to the FC3 OS? > Here's what I tried last time: > > title Fedora Core 3 (2.6.9-1.667) > root (hd1,0) > kernel /vmlinuz-2.6.9-1.667 ro root=/dev/hdf2 > initrd /initrd-2.6.9-1.667.img > > I can't find and example of multiple hard drive boots with two linux > OS's. Thanks, What you posted looks like it should work, at least until the next time you upgrade the FC3 kernel. Looking at the FC3 entry, its boot partition should be on /dev/hdf1 and its root on /dev/hdf2. /dev/hdf1 (FC3) should have a directory structure similar to /dev/hde1. You should also verify that /boot/grub/device.map on /dev/hde1 (FC2) maps hd1 to /dev/hdf. Did you manually enter the FC3 portion in FC2's /boot/grub/grub.conf? If not, then FC2 and FC3 are actually using the same /boot partition, and FC3's /boot is actually empty. If this is the case, you should also install grub on /dev/hdf1. Then modify FC2's /etc/grub/grub.conf so that the FC3 entry looks like: title Fedora Core 3 root (hd1,0) chainloader +1 This way both FC2 and FC3 have independent /boot partitions. You should also copy FC2's /boot to FC3's /boot partition so that you have working FC3 /boot. After you have booted FC3, you should clean out the FC2 kernel info from FC3 /boot. You could also add an entry such as: title Fedora Core 2 root (hd0,0) chainloader +1 to give you the option of returning to FC2 if you change your mind before booting. If instead you would rather share /boot between both installs, then you need to modify the "root" portion of the FC3 stanza to point to hd0. I would not recommend this option if you ever intend to have both installs using the same OS version, _OR_ if you ever upgrade either install to a later Fedora release. Redhat/Fedora upgrades tend to blindly remove any kernels that it deems "obsolete." Kevin Freeman -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
