Re: Need Help Editing Grub OOPS! Screw up...

I believe "setup(hd1,4)" is wrong.
Should be "setup(hd1)"

I also wonder how you make "root(hd1,4)" work, cuz partitions are counted
from 0 and only 0-3 are "physical" partitions.
Beyond that, they are "logical" partitions, and I don't recall to have ever
booted from a "logical" partition.

Finally, make sure that whichever partition you are booting from is flagged
as bootable.
Feel free to post the output of
cat /proc/partitions
and
sudo fdisk -l /dev/sda
(or whatever HD you plan to boot from)

If the BIOS recognizes the HD and partitions, and still doesn't boot, we are
facing and enless permutations of unknowns...
I'd suggest you boot from a CD, start and SSH server, give me login
credentials (make sure you get a public IP or you "poke a hole" in your
router) and I'll walk you through over the phone and a "screen" session.
I've done 46591274 GRUBs.

The statement above is fairly dense, feel free to ask... :)
ET






Mark Phillips writes:

> Kitepilot,
>
> Well, I did this....
> grub
> root(hd1,4) - got an appropriate message like "found something"
> setup(hd1,4) -- got a bunch of messages that looked right - basically
> confirming it found everything
> quit
>
> Initially, I tried root(hd1,0) and got an error message; also setup (hd1)
> and got an error message. BTW root(hd1) also returns an error message. The
> commands above were the only ones that worked without errors.
>
> I also change my fstab file as shown earlier (basically changed hdb to hda).
> And the menu.lst was changed appropirately - hdb to hda as I posted earlier.
>
> Moved the disk from ide2 to ide1, and installed the new blank disk in ide2.
>
> Booted up, and no boot, just a black screen. I made sure the jumpers were
> set for master on ide1 and slave on ide2. ide1 has the linux drive and ide2
> has the new blank drive.
>
> Checked the bios to see if both drives are recognized, and they are, and in
> the right spots as well.
>
> Currently downloading most recent knoppix image to burn a cd and see what's
> up. Any suggestions would be appreciated.
>
> Mark
>
> On Mon, Jan 25, 2010 at 9:06 AM, kitepilot@kitepilot.com <
> kitepilot@kitepilot.com> wrote:
>
>> > grub
>> > root (hd1,0)
>> > root (hd1)
>> NO
>>
>> grub
>> root (hd?,?)
>> setup (hd?)
>> ^^^^^
>> Sorry...
>> ET
>>
>>
>>
>>
>> Mark Phillips writes:
>>
>> > kitepilot,
>> >
>> > Thanks for the clarification.
>> >
>> > Sorry to be such a newbie.....You wrote
>> > grub
>> > root (hd1,0)
>> > root (hd1)
>> > It should answer that it found the stages, verify that there are no
>> errors.
>> > quit
>> >
>> > Should it be
>> > grub
>> > root (hd1,4)
>> > root (hd1)
>> > It should answer that it found the stages, verify that there are no
>> errors.
>> > quit
>> >
>> > because "find /boot/grub/stage1" returns (hd1,4) and not (hd1,0)? Or,
>> > perhaps it doesn't matter, and grub will do the right thing when I use
>> > (hd1,0)?
>> >
>> > Thanks!
>> >
>> > Mark
>> >
>> > On Mon, Jan 25, 2010 at 7:06 AM, kitepilot@kitepilot.com <
>> > kitepilot@kitepilot.com> wrote:
>> >
>> >> >> is there perhaps, a typo?
>> >> No, it's not a typo!
>> >> The drive is still hd1 until you pull the old one.
>> >> Grub doesn't know about which drive, the BIOS tell it to.
>> >> Once you pull the M$ drive and flip the cables, GRUB will see it as hd0.
>> >> ET
>> >>
>> >>
>> >>
>> >> Mark Phillips writes:
>> >>
>> >> > 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 <
>> >> > 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
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