Yes, they are "wrong", but not "WRONG!".

As I (possibly poorly) explained, I'm running on an aarch64 machine, but am trying to run armv5tel and armv7hl chroots.

I just dug out an old kernel I was using (4.4.72) and I can now chroot just fine.

So it's something that changed in the kernel, but I'm not sure what else it could be other than the page size (which I already checked).

I'm going to build the latest 4.4.172 with my 4.4.72 config and see if that works. If it does, I'll try to make oldconfig that on 4.9.153 and try again, see if that breaks things again. I was just hoping there might be an option I missed in 4.9 that enables/disables downward compatibility.

Gordan

On Sat, Jan 26, 2019 at 5:41 PM Stephan GUILLOUX <stephan.guilloux@free.fr> wrote:

Wrong architecture binaries, in the chroot'ed folder ?

What do you get with:

file <chroot>/bin/bash

On 26-Jan-19 17:49, Gordan Bobic wrote:
> It's been so long since I last had to do this, that it looks like a
> kernel update somewhere along the way broke this for me. :-(
>
> What happens now:
>
> # chroot rs7
> chroot: failed to run command ‘/bin/bash’: Exec format error
>
> I could have sworn that this was all I needed to make this work last time:
> # grep 4K_PAGES config-4.9.153-1.el7.centos.aarch64
> CONFIG_ARM64_4K_PAGES=y
> # CONFIG_ARM64_64K_PAGES is not set
>
> Unfortunately, now trying to chroot into either hard-float or
> soft-float chroot results in the exec format error.
>
> Looking at time stamps of various things, I had this working with
> 4.4.70, but have since switched to 4.9.x kernels. Any thoughts on what
> changed between 4.4 and 4.9 would be most appreciated.
>
> What am I missing?
>
> _______________________________________________
> Arm-dev mailing list
> Arm-dev@centos.org
> https://lists.centos.org/mailman/listinfo/arm-dev
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