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[bugs #1251] USB floppy does not boot

From: Yoshinori K. Okuji
Subject: [bugs #1251] USB floppy does not boot
Date: Tue, 21 Sep 2004 11:52:18 -0400
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040115

This mail is an automated notification from the bugs tracker
 of the project: GNU GRUB.

[bugs #1251] Latest Modifications:

Changes by: 
                Yoshinori K. Okuji <address@hidden>
                Tue 09/21/04 at 15:30 (GMT)

            What     | Removed                   | Added
          Resolution | None                      | Invalid
              Status | Open                      | Closed
             Release |                           | unknown

------------------ Additional Follow-up Comments ----------------------------
This is not a bug in GRUB but simply your installation is wrong. Check your 
device map file.

[bugs #1251] Full Item Snapshot:

URL: <http://savannah.gnu.org/bugs/?func=detailitem&item_id=1251>
Project: GNU GRUB
Submitted by: David Tyree
On: Fri 09/20/02 at 17:59

Category:  None
Severity:  Major
Priority:  5 - Normal
Item Group:  None
Resolution:  Invalid
Privacy:  Public
Assigned to:  None
Originator Name:  
Originator Email:  
Status:  Closed
Release:  unknown
Reproducibility:  None
Planned Release:  

Summary:  USB floppy does not boot

Original Submission:  GRUB will not boot from a USB floppy capable BIOS. 
GRUB does not correctly handle USB floppy drives. The GRUB notification appears 
on the screen, but the system appears frozen. CTRL-ALT-DEL will still reset the 

Dos 6.22, syslinux and lilo, all seem to handle the USB floppy fine. The BIOS 
(WizPro, I know sounds like fun)is set for legacy support.

I've traced the execution path through the assembly, but cannot understand why 
it seems to get where it gets if everything is ok.

The code appears to reach  jmp  *(stage2_address), inserting copious debug 
messages, but falls on it's face.

Any help in debugging this?

Follow-up Comments

Date: Tue 09/21/04 at 15:30         By: Yoshinori K. Okuji <okuji>
This is not a bug in GRUB but simply your installation is wrong. Check your 
device map file.

Date: Tue 08/24/04 at 22:40         By: 0 <None>
Same problem here with some external USB hdd.

For detailed info, follow this link:

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