[syslinux] can't boot isohybrid-ized image on CG2100

[Forte, Greg]

That debian image works fine on the problem system.  I tried hacking my
image by hand similarly, no luck (didn't hang the box, but didn't boot
either), but I'm probably doing it wrong.  Will try building one with
xorriso next.

Thanks!

-g

-----Original Message-----
From: syslinux-bounces at zytor.com [mailto:syslinux-bounces at zytor.com] On
Behalf Of Thomas Schmitt
Sent: Saturday, March 19, 2011 4:43 PM
To: syslinux at zytor.com
Subject: Re: [syslinux] can't boot isohybrid-ized image on CG2100

Hi,

Forte, Greg wrote:
> I rewrote the
> partition table on the stick (using standard linux fdisk) to have a 
> more "normal" primary first partition (starting with a small offset 
> from absolute 0, CHS = 0x010100, LBA start sector = 00000020, which is

> 32 blocks, or 16k past the start, if I'm reading it correctly).  After

> doing that, the system BIOS no longer has a problem, and the stick 
> boots normally (except, of course, I can't mount the iso image as 
> /dev/sdX1 any more, only as /dev/sdX).

Could you try to boot a Debian daily image for i386 or amd64 ?
These images are isohybrid with a partition offset of 32 kB.
Both, /dev/sdX and /dev/sdX1 are mountable.
Goal is to see the install menue with spaceship and option "Help".

The following image has 47 MB:
 
http://cdimage.debian.org/cdimage/daily-builds/daily/current/i386/iso-cd
/debian-testing-i386-businesscard.iso


Due to a bug in xorriso-1.0.1, image size is not aligned to a full
cylinder. This leads to fdisk complaining about "different
physical/logical beginnings" but seems elsewise harmless.
xorriso-1.0.4 produces nicely aligned images.


Have a nice day :)

Thomas

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