[Lguest] unhandled trap 13

[Rusty Russell]

On Mon, 2007-08-13 at 12:31 +0200, Steffen Schulz wrote:
> However, my kernel appearrently lacks some ide drivers.
> The .config is unchanged, I use it for host and guest. Platform is a
> santa rosa macbook pro using intel sata. The disk image works with
> qemu. This is what I get:
> 
> #lguest 64m linux-2.6.23-rc2_vt --block=srpdisk.img root=/dev/lgba
> [...]
> VFS: Cannot open root device "lgba" or unknown-block(0,0)

Ah, this is because a bad patch to the Kconfig for rc2 broke the
selection of the lguest block and net drivers.  The following should fix
it:

	echo CONFIG_LGUEST_BLOCK=y >> .config
	echo CONFIG_LGUEST_NET=y >> .config

(Or just add "default y" under the LGUEST_NET and LGUEST_BLOCK options
in drivers/lguest/Kconfig: this is how it's fixed in later kernels).

Hope that helps,
Rusty.