Eric, Maybe this is what KP was trying to say grub root (hd1,0) setup(hd1) quit Because, when I boot the system now, hd1 is my Linux drive. So I have to setup grub on my Linux drive while it is running. Then I switch the Linux drive to the first ide channel, so it becomes the first mbr to be read, and it has grub installed there. I believe the current configuration has the mbr on the first ide drive (windows) point to the mbr on the second ide drive (linux and grub). I have to break that chain so the mbr of the second ide drive is now the boot mbr. The alternative would be to switch drives now, boot with a rescue disk and perform grub root (hd0,0) setup (hd0) quit Does this make sense? Mark On Sun, Jan 24, 2010 at 7:18 PM, Eric Shubert wrote: > > Mark, > I don't understand entirely the commands that kitepilot said to use either. > > Your menu.lst file looks correct. > > savedefault, along with the "default" setting listed earlier in > menu.lst, controls which kernel is used as the default. savedefault > means "use me to boot next time", so generally speaking, the computer > boots whichever OS was running last. Providing the "default" setting > corresponds to this behavior. > > makeactive and chainloader commands are used with windows partitions. > makeactive makes the partition active (whatever that means, but windows > seems to require it), and chainloader, which effectively passes control > over to the windows loader program, not unlike what happens when the > bios passes control to grub. At least that's what I would guess. > > If grub is not installed in the mbr of the 2nd drive, it needs to be. I > think that might be what kp was trying to get to. In order to install > grub on mbr of drive hda, issue the "grub" command at the cli. Then at > the grub prompt, enter the part after the prompt: > grub> root (hd0,0) > grub> setup (hd0) > grub> quit > > If your OS is the 2nd partition on the drive, then you'd specify: > grub> root (hd0,1) > > If your drive is hdb, then you'd use hd1 in place of hd0. > > That drive would then run grub when it's booted. > > -- > -Eric 'shubes' > > > Mark Phillips wrote: > > This is what I have in menu.lst > > > > title Debian GNU/Linux, kernel 2.6.26-2-686 > > root (hd1,4) > > kernel /boot/vmlinuz-2.6.26-2-686 root=/dev/hdb5 ro > > initrd /boot/initrd.img-2.6.26-2-686 > > > > title Microsoft Windows XP Professional > > root (hd0,0) > > savedefault > > makeactive > > chainloader +1 > > > > So, I change > > title Debian GNU/Linux, kernel 2.6.26-2-686 > > root (hd1,4) > > kernel /boot/vmlinuz-2.6.26-2-686 root=/dev/hdb5 ro > > initrd /boot/initrd.img-2.6.26-2-686 > > > > to > > > > title Debian GNU/Linux, kernel 2.6.26-2-686 > > root (hd0,4) <-- change1 to 0 here > > kernel /boot/vmlinuz-2.6.26-2-686 root=/dev/hda5 ro <--- change > > b to a here > > initrd /boot/initrd.img-2.6.26-2-686 > > > > and remove > > title Microsoft Windows XP Professional > > root (hd0,0) > > > > What about these bad boys..... > > savedefault > > makeactive > > chainloader +1 > > > > I still don't understand the grub commands that I was told to use. > > > > Mark > > > > On Sun, Jan 24, 2010 at 5:58 PM, Eric Shubert > > wrote: > > > > "every reference to hd1,0 is converted to hd0,0" > > You need to edit this manually. hd1 in grub corresponds to hdb in > linux, > > and hd0 in grub is hda in linux. > > > > Mark Phillips wrote: > > > I understand the flow....shouldn't I tell grub somehow that the > > new boot > > > drive is hd0,0? In your steps below, is there perhaps, a typo? > > > > > > Thanks! > > > > > > Mark > > > > > > On Sun, Jan 24, 2010 at 3:58 PM, kitepilot@kitepilot.com > > > > > > > > > > > > >> wrote: > > > > > > >> 1. How do I change grub on the Linux drive (hdb) to say > > "the ... > > > If you are running GRUB 0.XX (GRUB 1.XX is different): > > > Boot your Debian machine and as root run: > > > grub > > > root (hd1,0) > > > root (hd1) > > > It should answer that it found the stages, verify that there > > are no > > > errors. > > > quit > > > > > > > > > Then take a backup of /boot/grub/menu.lst and and make sure > that > > > everything > > > is either using UUID(s) or labels or every reference to hd1,0 > is > > > converted > > > to hd0,0 > > > > > > Verify your /etc/fstab likewise. > > > > > > > > > > 2. Do I move the second drive to the first ide port, or > > leave it > > > as ... > > > Shutdown, pull the cable from the windoze drive and plug it > > to Linux > > > drive. > > > Turn on and pray... :) > > > Free advice, you can't sue me ;-) > > > YMMV > > > ET > > > > > > > > > > > > > > > Mark Phillips writes: > > > > > > > I have two ide drives in one machine - drive 1 is a > > Windows drive > > > and drive > > > > 2 is a Linux drive. Using grub, I can boot into either > > windows or > > > debian. I > > > > want to remove the windows drive and replace it with a > larger, > > > blank drive > > > > for backup storage. I have a feeling if I just remove the > > first > > > drive and > > > > put the new one there, the machine will not boot, since > > the MBR > > > is probably > > > > on the first drive (it came with the machine, and I just > added > > > the second > > > > drive for Linux). My questions: > > > > > > > > 1. How do I change grub on the Linux drive (hdb) to say > "the > > > windows drive > > > > is dead, boot here instead, long live linux"? > > > > > > > > 2. Do I move the second drive to the first ide port, or > > leave it > > > as the > > > > second ide drive and put the new drive in the fist ide > port? > > > > > > > > Thanks! > > > > > > > > Mark > > > --------------------------------------------------- > > > PLUG-discuss mailing list - > > PLUG-discuss@lists.plug.phoenix.az.us > > > > > > > > > > To subscribe, unsubscribe, or to change your mail settings: > > > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > > > > > > > > -- > -Eric 'shubes' > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >