[Bug #1251] USB floppy does not boot

[nobody]

=================== BUG #1251: FULL BUG SNAPSHOT ===================
http://savannah.gnu.org/bugs/?func=detailbug&bug_id=1251&group_id=68

Submitted by: dtyree                    Project: GNU GRUB                       
Submitted on: 2002-Sep-20 17:59
Category:  None                         Severity:  Major                        
Priority:  None                         Bug Group:  None                        
Resolution:  None                       Assigned to:  None                      
Status:  Open                           Release:                                
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 
system.

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?



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http://savannah.gnu.org/bugs/?func=detailbug&bug_id=1251&group_id=68