URL:
<http://savannah.gnu.org/bugs/?func=detailitem&item_id=13044>
Summary: GRUB changes system ID on partition
Project: GNU GRUB
Submitted by: None
Submitted on: Tue 05/10/2005 at 04:01
Category: Disk & Partition
Severity: Major
Priority: 5 - Normal
Item Group: Software Error
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email: [EMAIL PROTECTED]
Open/Closed: Open
Release: 0.96-r1
Reproducibility: Once
Planned Release:
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Details:
I have not tried reproducing this bug, so hopefully this has happened to
someone else who can add more information on what happened to them. Since I
have not reproduced this bug, I will include everything I did before I
rebooted.
I originally posted my error messages in the Gentoo Forums, so anyone who is
interested can look here:
http://forums.gentoo.org/viewtopic-p-2394790.html#2394790
I had GRUB working wonderfully on my system, until I made a few minor changes
to my grub.conf file. I uncommented the fallback line, and added the lines
hide (hd1,0)
hide (hd1,1)
hide (hd1,2)
to my grub.conf file under the Windows heading. When I rebooted, I got the
following message:
GRUB Loading stage1.5.
GRUB loading, please wait...
Error 17
I used a Knoppix CD to try to diagnose the problem. After changing back my
grub.conf, here's what happened when I ran grub from the command line:
grub> root hd(1,0)
Filesystem type unknown, partition type 0x93
grub> setup (hd0)
Error 17: cannot mount selected partition
It took me a while to realize that instead of focusing on the line that gave
me the error 17 message, the problem was with the "partition type 0x93"
message, which I had completely overlooked. I ran fdisk, and sure enough my
partition table had been changed. My hard disk had four partitions on it.
Partitions 0-3 had system ID 0x83 and partition 4 had system ID 0x82. None of
the partitions were set bootable. When I looked at my partition table with
fdisk, I saw that the first partition had been set bootable and the first
three partitions had system ID 0x93. I changed the system ID back with fdisk
and now GRUB works fine, and I can boot to my Linux system. Did GRUB do this?
I'm a bit skeptical, myself, because it seems like such a big bug would have
been caught beforehand. Before I rebooted, I also made the first partition
unbootable with fdisk, so it is possible that this is an fdisk bug (I'll send
a message their way, too). Good luck, and hopefully someone can confirm this,
if it truly is a GRUB problem.
_______________________________________________________
Carbon-Copy List:
CC Address | Comment
------------------------------------+-----------------------------
eklitzke --AT-- berkeley --DOT-- edu | Originator Email
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