[syslinux] two automatic options for extlinux

[H. Peter Anvin]

On 02/13/2012 06:22 PM, Wolfgang Scheller wrote:
> Dear syslinux maintainer,
> on a tablet pc with only a touchpad is during boot time no keyboard
> exist and therefore no user intervention possible to control the
> behavior of a bootmanager extlinux in my case.

Well, you'd need *some* way to get a message to the boot manager that
you want a different behavior; what do you have available?

> The machine is able to boot from a second drive a another as the default
> OS  and so I think it must be potential at first time extlinux via menu
> to instruct, to boot from such a drive. If this boot fails eg. the media
> is not bootable or is not inserted, (card reader and/or USB Stick) the
> second option must be, to boot automatic without user intervention from
> the machines internal drive the default main OS.
> Study the extlinux manual gave me no idea to realize such a menu for
> extlinux and I hope now to get a guidance from syslinux experts that
> solve this problem.
> Sorry for my bad english because for most of this words I used a dictonary.

Some of this requires or is preferably done with cooperation from the
main BIOS but can certainly be done.

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.