[gPXE] Try another boot-image on iSCSI boot failure

[Stefan Hajnoczi]

On Sun, Jul 11, 2010 at 10:40 PM, ewheeler <gpxe at ew.ewheeler.org> wrote:
> Hello,
>
> I've read most of the wiki to see if this is possible and have not seen
> any hints in this direction:
>
> When installing Windows  7 on an iSCSI device, Windows7 must see an
> iSCSI device in the iBFT to know that the device is bootable to present
> it as a bootable (thus installable) medium.
>
> I would like to have gPXE configure the iBFT for the iSCSI device I wish
> to boot from, using gpxe.keep-san=1 to keep it resident, and then chain
> to yet-another-bootloader that will launch the Windows 7 installer.
>
> One site suggests netbooting gPXE with keep-san=1 and when it fails
> booting from the virgin iSCSI disk, let the system BIOS boot the Windows
> 7 install CD as the next boot attempt.  The problem here is that /my/
> BIOS will not try another boot image after the first one fails.
>
> Is there a way to do this?

The method you described, exiting gPXE and letting the BIOS boot the
next device, is usually how it's done.  Which gPXE image are you using
(.rom, .kpxe, .iso, etc)?

Stefan