On Tue, 2007-02-06 at 22:59 -0500, Jim Cornette wrote: > zephod@xxxxxxxxxx wrote: > > I reported this problem some time ago but I still cannot boot my FC6 > > disk. I have been poking around the GRUB source and I now have a > > better understanding of what GRUB does but I don't understand this > > problem. > > > > I have 2 disks, one is a SATA disk that has Windows XP on it. The > > other disk is an IDE that has my FC6 on it. When I try to boot to the > > FC6 disk, the machine just reboots over and over again. I then boot > > from the rescue disk and look at the partitions using fdisk. > > Everything looks normal. The Windows stuff is on /dev/sda and the FC6 > > stuff is on /dev/hdk. /boot/grub/device.map contains: > > > > (hd0) /dev/sda > > (hd1) /dev/hdk > > > > If I enter GRUB in interactive mode and do > > > > # geometry (hd0,0) > > > > I get the output I expect but when I do > > > > # geometry (hd1,0) > > > > GRUB tells me that there is no such disk. The reason GRUB won't boot > > is that is fails the root (hd1,0) command in the grub.conf file. > > > > I even re-installed GRUB > > > > # grub-install /dev/hdk > > > > with no problems but when I go back inro GRUB it still tells me there > > is no hd1. > > > > Can anyone give me somewhere else to look for clues? If GRUB looks at > > device.map to figure that hd1 means /dev/hdk and grub-install is OK > > installing on /dev/hdk, why doesn't GRUB recognize the 2nd disk? > > > > Steve > > > > The problem with rebooting without a rational cause happened to me > booting from a xen kernel. Are you booting from a xen enabled kernel? > Chances are that this is not your problem but just in case it is your > problem. > > Regarding the no such disk problem. I had problems on two different Dell > computers which the secondary drive was disabled in BIOS. Fedora itself > recognized the disks but grub did not because of the BIOS setting. Are > your BIOS settings set to show all disks? > > Regarding Grub interactive. I had to use it myself today for the first > time. It is highly cryptic but not too hard once you get through the > vague documentation. > > CAUTION: (I don't know what the heck I'm doing in the grub shell yet > this is a question only) > What would happen if you entered > root (hd1,0) > followed by > setup (hd0) > > Basically, boot is the first partition on the second hard drive and grub > is booted from MBR. > > I had to do this on a computer which I moved boot from sdb2 to sdb1 > changed fstab reference and /boot/grub/grub.conf references but did not > run grub-install before rebooting. > > Why are you trying geoometry > -- The above grub coammands shold work, and the boot block should be placed on /dev/sda. ======================================================================= Everyone wants results, but no one is willing to do what it takes to get them. -- Dirty Harry ======================================================================= Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx
