Re: cross install 64bit target from 32bit host

[Sven Joachim <svenjoac@gmx.de>]

On 2016-05-27 13:28 -0400, Haines Brown wrote:

> I'm doing a cross installation. The host system is Wheezy 32 bit, and
> the target is Jessie 64 bit. So I run this:
>
>   # debootstrap --no-check-gpg --arch=amd64 --foreign jessie /mnt/debian ...
>
> This sucessfully installed first stage files. Then I go to chroot into
> the target disk and get:
>
>   # LANG=C.UTF-8 chroot /mnt/debian /bin/bash
>   chroot: failed to run command `/bin/bash': Exec format error
>
> I gather the problem is that I'm trying to run 64bit bash code with a
> 32bit chroot application. How does one then do a cross install a 64 bit
> operating system with a 32-bit host machine? I did not find help in the
> chroot manual.

If possible, install and boot a 64-bit kernel (you don't need the
--foreign option for debootstrap then).  If your current processor is
not capable of that, try qemu-user-static.

Cheers,
       Sven