Bug 49299 – grub cannot see second disk

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Bug 49299 - grub cannot see second disk

Summary:	grub cannot see second disk

Status:	CLOSED WORKSFORME

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	grub (Show other bugs)
Sub Component:
Version:	7.3
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Jeremy Katz
QA Contact:	Jay Turner
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2001-07-17 14:55 EDT by Gene Czarcinski
Modified:	2015-01-07 18:48 EST (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2001-09-04 16:56:31 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Gene Czarcinski 2001-07-17 14:55:06 EDT

Description of Problem:
With grub install in a small system on hda1 with grub installed into the
mbr of hda. I then installed a default custom install on hdb5 with lilo
installed into hdb5.  I then rebooted the system and selected command-line
mode with the intent to enter the following commands:

root (hd1,4)
chainloader +1
boot

How Reproducible:
everytime on one system ... will try other hardware tonight

Steps to Reproduce: (see above)
1.
2.
3.

Actual Results:
after entering "root (hd1,4)" the respons is

Error 21:   Selected disk does not exist.

Expected Results:

system on hdb5 boots
Additional Information:
	
I tried other partitions on hdb with the same result.  Do installs into
additional partitions on hda (lilo or grub) work as I would expect.

Comment 1 Glen Foster 2001-07-18 15:59:56 EDT

This defect should be fixed before next release.

Comment 2 Gene Czarcinski 2001-08-06 15:31:56 EDT

This only occurs for me on one (Dell Optiplex) system.  Is there any info that
might help?

Comment 3 Jeremy Katz 2001-08-06 16:54:01 EDT

What does the /boot/grub/device.map look like?

Comment 4 Gene Czarcinski 2001-08-07 12:12:26 EDT

1. The /boot/grub/device.map on hda1 which I am trying to use as may master boot
"director" has:

(fd0)    /dev/fd0
(hd0)    /dev/hda

I tried adding the line: (hd1)   /dev/hdb
but this had no effect.

2.  I cannot use grub to chainloader boot from /dev/hdb1 (does not see the disk)
nor can I use "grub on a floppy" to see /dev/hdb1.  However, Once I boot up the
minimal system on /dev/hda1, I can run grub and it will recognize (see) the ext2
file system on (hd1,0).

3.  I have other systems with two ide drives and can use such a "master
director" to boot linux partitions from with the hda or the hdb disks.

Comment 5 Jeremy Katz 2001-08-07 17:04:23 EDT

Have you tried re-running `/sbin/grub-install /dev/hda` after adding the

(hd1)  /dev/hdb

to /boot/grub/device.map?

Comment 6 Gene Czarcinski 2001-08-14 09:37:28 EDT

Sorry that followup took so long but I forgot about this one.

I tried changing device.map and doing grub-install /dev/hda and it makes no
difference.  For some reason, grub on /dev/hda (or a floppy) do not like
/dev/hdb.  Whereas, running grub under a copy of roswell installed on hda can
access /dev/hdb just fine.

Comment 7 Jeremy Katz 2001-08-15 14:45:04 EDT

Well, in an installed system, the accessing of devices doesn't actually use the
BIOS routines, so it's a bit different.  Maybe try updating the BIOS?

Comment 8 Gene Czarcinski 2001-08-24 14:41:41 EDT

This still happens on RC1 and I have no idea how to get around it.

This does NOT happen on any other system I have run tests on.

Comment 9 Jeremy Katz 2001-08-24 14:47:12 EDT

Do you have the newest BIOS available installed on the machine?

Comment 10 Gene Czarcinski 2001-08-24 16:04:46 EDT

This box is a commercial Dell Optiplex purchased about too years ago plus an
extra (IBM) 45MB ide drive.

You have a good question but it will take me a few days (a week?) to check this
out.  I will also try another more or less identical box to see if it acts the same.

Comment 11 Jeremy Katz 2001-09-04 16:56:27 EDT

Any information on updated BIOS ?

Comment 12 Jeremy Katz 2001-11-28 20:38:46 EST

Closing due to the lack of activity.

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