[syslinux] Booting firmware harddisk image with memdisk fails

[Michael Grundmann]

i did it sucessfully on my t400 with syslinux 3.80 (built form source on a 
gentoo machine)

Michael

On Friday 22 May 2009 11:10:38 Dag Wieers wrote:
> Hi,
>
> I once again have a problem with memdisk failing to boot a harddisk image
> to update my Thinkpad X200s firmware. I extracted the harddisk image
> from the eltorito type 4 ISO using the isobar tool.
>
> Then I added memdisk using this image as initrd to my grub, rebooted and it
> boots into PC DOS and then freezes (ctrl-alt-del still works to reboot the
> system).
>
> Inside Qemu however it works fine and boots into the firmware update tool.
> So it seems yet another BIOS+memdisk issue.
>
> I tried the latest 3.81pre9 yesterday as well as RHEL5's default 3.11, and
> they both freeze the same way. I also tried all the possible options for
> memdisk (although not any combination).
>
> Is there a specific version I can try to see if this is a regression ? Is
> there something I can provide to help you debug this problem ? Is it
> possible some BIOS option can change the behaviour of memdisk ?
>
> I noticed that on ThinkWiki someone (the author) did exactly the same
> thing on his X200 without a problem. But may have a different
> BIOS firmware/syslinux/BIOS options.
>
>  	http://www.thinkwiki.org/wiki/BIOS_update_without_optical_disk
>
> Let me know,