Re: Grub boot loader error 21
- From: imotgm <imotgmREM@xxxxxxxxxxxxxxxxxxx>
- Date: Tue, 07 Nov 2006 15:23:55 -0600
On Tue, 07 Nov 2006 11:02:56 -0800, sd wrote:
grub can be thought of as a separate mini OS. Its purpose is to act as the
loader for other OSs. It uses its own nomenclature for drives and
partitions which is unique to itself.
Are you sure the BIOS isn't telling you that IDE drives are using _UDMA_,
not UMDA. UDMA is ultra DMA.
Question 1: Did you modify your BIOS settings after you installed Ubuntu?
You may be up against a bit of project to get your system working again.
You may need to do some homework now, if you omitted this step
previously. It is important not to panic, though.
Oops.. the second IDE drive shows up on BIOS as UDMA [you're right -
it's not UMDA - I must have had too much coffee when I wrote last].
What makes you think that the UDMA setting refers to the second hard
drive, rather than the first, or both? We need details. None of us can see
your machine; only you can. We need to know what you see, if we are to
When I saw that the primary slave was off, I turned it on on BIOS. It
didn't do any magic. So I turned it back off. So the BIOS setting is
exactly as it was before I installed ubuntu.
Please advise on what homework needs to be done. I can't wait to get my
system back up.
For homework, a good start is here;
For help, it would be nice if you could tell us exactly where you
installed Ubuntu, as in which partition on your second hard drive. Did you
make a /boot partition, swap partition, separate /home partition? Do you
know exactly which ide controller your second hard drive is connected to?
Are your drives jumpered master/slave, or cable select? Your Ubuntu CD is a
live Linux CD, which you can use to mount your / partition, and copy/post
your /boot/grub/menu.lst. Do so. Along with the answers to the above
mentioned questions, we might be able to spot where the problem is. Also,
as root, enter the command;
fdisk -l (that's a small L, not a number)
Post the results, along with your /boot/grub/menu.lst. I don't have a
Ubuntu CD, but it should have the Pan newsreader on it, so you can
copy/paste into it, so that we can see the exact results.
"Lost? Lost? I've never been lost... Been a tad confused for a
month or two, but never lost."
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