Red Hat Bugzilla – Bug 65842
System will not boot if grub is placed on a scsi disk when ide disk is present
Last modified: 2007-04-18 12:42:52 EDT
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Description of problem:
When asked about grub/lilo during installation, I installed Grub on /dev/sda1.
But with this choice my system will not boot. I had unplug my IDE drives and
then start the installation all over again. I've had this problem (and
reported it) with an earlier version of RedHat Linux, so I thought that this
wouldn't be any problem now.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Both SCSI and IDE on system
2. Choose grub to be installed on first SCSI disk
3. Reboot .... -> Won't work!
Actual Results: I'm not sure, but it seems that grub doesn't recide on the
scsi disk at all. Maybe it installed grub on /dev/hda1 ???
Expected Results: normal boot
As I said, this is a prior bug (I don't remeber any bug id).
It's not a high priority bug, I know that - but it's pretty frustrating that
you have to physically unplug all your ide disks when planning on installing
you Red Hat Linux. I've got 3 IDE disks and four scsi disks. My / resides
on /dev/sda1 but everything else contains data for example /var /users etc.
Does your BIOS allow you to specify if the SCSI or IDE drive chain is booted
first? Almost all PC BIOS's boot from the first IDE drive, and it takes custom
editting of the bootloader configuration to get it to boot from SCSI if IDE is
Yes it does and my IDE disks aren't even there.
It started as a 100% scsi system but since IDE disks are much much cheaper
I've installed a few large ones. My bootup sequence is:
2. SCSI CD
3. SCSI Disk
But this is not the problem. After I've unplugged my IDE disks and installed
the system, I can reconnect the IDE disks and everything works just fine.
I think we're planning on some future enhancements that would help in your
Dupe of a few others... future releases allow changing what we detect your
drive order as.