[syslinux] [help] Use syslinux but can not boot from USB key

Michael D. Setzer II mikes at kuentos.guam.net
Sat Aug 11 09:20:13 PDT 2007

Hash: SHA1

On 11 Aug 2007 at 7:45, H. Peter Anvin wrote:

Date sent:      	Sat, 11 Aug 2007 07:45:44 -0700
From:           	"H. Peter Anvin" <hpa at zytor.com>
To:             	For discussion of SYSLINUX and tftp-hpa 
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Subject:        	Re: [syslinux] [help] Use syslinux but can not boot 
from USB key
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> Helmut Hullen wrote:
> > 
> > There are (at least) 4 types of booting via USB, all depend from the  
> > BIOS:
> > 
> > a) doesn't boot
> > b) expects superfloppy
> > c) expects partitions
> > d) small size: expects superfloppy; big size: expects partitions
> > 
> The fact that the BIOS gets involved at all is in itself a BIOS bug, but
> probably is impossible to fix.
> Sometimes changing the mode to USB-ZIP if there is such a mode helps.
> 	-hpa

Just as a note. On my systems I had to install it on partition 1 of the flash 
disk and enable USB legacy support for keyboard / mouse or all devices. 
Then if I have the flash install can then change the BIOS to use the flash as 
a boot option. It didn't show the USB ZIP option, but some other option I can 
not recall at moment. 

I did run into a problem where it would boot fine with the USB, and it would 
boot with my G4L using the latest syslinux, but with an UPDCAST cd it 
would not with the USB legacy set on 

The commands I used was:
mkdiskimage -1 /dev/sda 0 64 32
syslinux /dev/sda1

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  Michael D. Setzer II -  Computer Science Instructor      
  Guam Community College  Computer Center                  
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