On Wed, Nov 20, 2002 at 12:50:13PM +0100, Christian Groessler wrote:
> Hi,
> 
> I've got a Linux - NetBSD dualboot machine. On NetBSD the Linux
> partition is mounted on /linux.
> 
> /emul/linux/lib is a symlink to /linux/lib.
> 
> I can run Linux binaries fine from NetBSD:
> 
> [root@gibbon:/]# /linux/bin/bash
> bash# exit
> exit
> [root@gibbon:/]# 
> 
> But I cannot run them chrooted:
> 
> [root@gibbon:/]# chroot /linux /bin/bash
> chroot: /bin/bash: Exec format error
> [root@gibbon:/]# 
> 
> Another try:
> 
> [root@gibbon:/]# chroot /linux /tmp/sh         # /linux/tmp/sh: netbsd sh
> # /bin/bash
> /bin/bash: 1: Syntax error: word unexpected (expecting ")")
> # 
> 
> 
> Any ideas?

I suspect a problem with /dev, or maybe /proc
try:
ktrace -i chroot /linux /bin/bash
kdump
and see what it's trying to do when exec'ing bash.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 23 ans d'experience feront toujours la difference
--