[syslinux] Dell OptiPlex GX620 can longer boot from CD with syslinux-5.X

[Shao Miller]

On 7/7/2013 23:37, Patrick Verner wrote:
> On Sun, Jul 7, 2013 at 10:25 PM, Shao Miller <sha0.miller at gmail.com
> <mailto:sha0.miller at gmail.com>> wrote:
>
>     On 7/7/2013 21:25, Patrick Verner wrote:
>
>         On Sun, Jul 7, 2013 at 6:11 PM, Shao Miller
>         <sha0.miller at gmail.com <mailto:sha0.miller at gmail.com>
>         <mailto:sha0.miller at gmail.com <mailto:sha0.miller at gmail.com>>__>
>         wrote:
>
>              On 7/6/2013 09:20, Patrick Verner wrote:
>
>                  Same CD. Any Linux distribution without the 5.X series
>         boots on this
>                  machine. We can use 4.06 and it boots just fine. It's
>         not the
>                  computer's
>                  hardware. Like I said, we can take the CD out of the
>         GX620 and
>                  place it in
>                  the 9010 and it boots. Put 4.06 on the CD, and they
>         both boot.
>
>
>              That error message (about the checksum) comes from
>         core/isolinux.asm
>              in move_verify_image, if I'm not mistaken.  A wild guess
>         would be
>              that an unexpected sector size is in use.  What is the
>         command used
>              to produce the .iso file?  - Shao
>
>
>         genisoimage -A 'Parted Magic '$version'' -f -r -hide-rr-moved
>         -hide-joliet-trans-tbl -J -l -allow-limited-size -b
>         boot/syslinux/isolinux.bin -c boot/syslinux/boot.cat
>         <http://boot.cat> <http://boot.cat>
>         -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot
>         -efi-boot EFI/boot/efiboot.img -no-emul-boot ./ >
>         ../pmagic_$version.iso
>
>         Nothing really out of the ordinary. I copied the command from
>         Debian and
>         only altered a few file locations that we use. That shouldn't
>         matter.
>         The same command works on that machine with 4.06.
>
>
>     Would it be worth a try without -efi-boot ?  You might waste a disc,
>     unless it's re-writable.  I'm just about to dig into this
>     genisoimage option and find out more about it.  Maybe the Dell GX620
>     has some kind of partial (U)EFI logic.  - Shao
>
>
> We already did. All of the tests we ran with isolinux-debug.bin were
> done with and without efi. I even tried making the iso with other
> programs like mkisofs. It didn't make a difference.

D'oh.  Well it might be worth adding a debug-message about the 
sector-size, just to rule that out as a problem.  - Shao