Re: [PATCH] linux-user: manage binfmt-misc preserve-arg[0] flag

[John Paul Adrian Glaubitz]

Hi Michael!

On 2/22/21 3:58 PM, Michael Tokarev wrote:
> 22.02.2021 17:54, John Paul Adrian Glaubitz wrote:
> 
>> OK, gotcha. Is it supposed to work with systemd-binfmt? It looks like it 
>> depends
>> on the old binfmt-support package.
> 
> the qemu 4-line patch does not depend on any particular system, it relies on a
> special name of its own argv[0] when registering the binfmt entry.  In order 
> to
> utilize it, we create a special-named symlink to qemu-foo and register that 
> one
> with the binfmt-misc subsystem, no matter if it is systemd or binfmt-support 
> or
> whatever else.

I have been trying to get qemu-user working with sbuild as it is shipped in 
Debian
unstable now but I didn't have any success.

Do you have some instructions somewhere how to get qemu-user working with 
sbuild?

My standard method [1] no longer works with the qemu-user-static package that is
shipped in unstable now:

> E: 15binfmt: update-binfmts: unable to open 
> /var/run/schroot/mount/sid-m68k-sbuild-b1484996-cb57-436b-b491-60665add9bb8/bin/sh:
>  No such file or directory
> E: Failed to execute “/usr/bin/getent”: No such file or directory
> E: Failed to execute “/usr/sbin/groupadd”: No such file or directory
> E: Failed to create group sbuild

Adrian

> [1] https://wiki.debian.org/M68k/sbuildQEMU

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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