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From: Mathieu Othacehe <m.othacehe@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Re: Qemu binfmt on foreign distro
Date: Mon, 25 Nov 2019 08:58:27 +0100	[thread overview]
Message-ID: <871rtwo09o.fsf@gmail.com> (raw)
In-Reply-To: <87sgmezao8.fsf@gmail.com>


I ran further tests. On Ubuntu 18.04, using qemu-user-static or
qemu-user-binfmt makes no difference, they both fail.

qemu-user-static works on Ubuntu 19.04 because of the addition of the
'F' flag, see:
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1815100.

Adding the 'F' flag[1] manually on Ubuntu 18.04 also fixes the issue.

I could maybe add an entry to the documentation explaining that, in
order for '--system' command to work on foreign distros, it is needed
that:

* A static version of qemu-user is used by binfmt
* The 'F' flag is enabled for all binfmt installed entries

Mathieu

[1]: https://www.kernel.org/doc/html/latest/admin-guide/binfmt-misc.html

  reply	other threads:[~2019-11-25  7:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-21 10:01 Qemu binfmt on foreign distro Mathieu Othacehe
2019-11-23 18:10 ` Ludovic Courtès
2019-11-23 18:29   ` Mathieu Othacehe
2019-11-23 18:53     ` Mathieu Othacehe
2019-11-25  7:58       ` Mathieu Othacehe [this message]
2019-11-26 10:24         ` Ludovic Courtès

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