Re: [gentoo-user] Can I run a 32-bit CentOS chroot on a 64-bit Gentoo host?

[Mike Gilbert]

On Tue, Feb 7, 2017 at 10:13 AM, Walter Dnes <waltdnes@××××××××.org> wrote:
> On Tue, Feb 07, 2017 at 08:24:40AM +0000, J. Roeleveld wrote
>
>> I used to do this to build packages for my old 32bit netbook.
>>
>> To start a 32bit chroot:
>> # linux32 chroot <directory> /bin/bash
>
>   I transferred over the CentOS system.  It fails on my system with
> "Exec format error"
>
> [i660][root][~] chroot /home/misc/centos65/ /bin/bash
> chroot: failed to run command '/bin/bash': Exec format error
>
> [i660][root][~] linux32 chroot /home/misc/centos65/ /bin/bash
> chroot: failed to run command '/bin/bash': Exec format error
>
>   The error is usually due to stuff like trying to run 32-bit code in a
> 64-bit environment.
>

You probably have the CONFIG_IA32_EMULATION kernel option disabled.