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On 4/18/06, Michael Sullivan <michael@××××××××××××.com> wrote: |
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> On Tue, 2006-04-18 at 19:37 -0500, Michael Sullivan wrote: |
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> > Is there a way to find out which hard drive grub considers to be (hd0) |
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> > and so on? The guy I'm helping to install Gentoo is having trouble with |
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> > grub. grub detected /dev/hdd, /dev/sda and /dev/sdb. At this point |
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> > we're treating them as (hd0), (hd1) and (hd2). Everything seems right |
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> > to me, but it won't work in practice. How do we find out what is what? |
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> |
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> Is the listing in /boot/grub/device.map correct even if grub.conf isn't? |
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Not sure what you mean here... |
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The device.map file can be used when you 'install' the grub MBR and |
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(possibly) the stage1.5 files. So when you do a "setup hd0", it knows |
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that corresponds to /dev/sda in the operating system. It should match |
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the device order used by the system BIOS. |
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At boot time, the ordering of hd0, hd1, etc is dependant upon the |
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system BIOS. hd0 is virtually always the drive being used to boot. |
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>From the grub documentation: |
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" Note that GRUB does _not_ distinguish IDE from SCSI - it simply |
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counts the drive numbers from zero, regardless of their type. Normally, |
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any IDE drive number is less than any SCSI drive number, although that |
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is not true if you change the boot sequence by swapping IDE and SCSI |
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drives in your BIOS." |
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One option you have is to drop into the grub shell on boot, and do |
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something like: |
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find /grub/stage2 |
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That should list all drives and partitions where /grub/stage2 is found. |
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HTH, |
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-Richard |
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> |
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> -- |
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> gentoo-user@g.o mailing list |
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> |
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> |
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-- |
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