From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Soltys Subject: Re: [systemd-devel] systemd kills mdmon if it was started manually by user Date: Tue, 08 Nov 2011 21:32:07 +0100 Message-ID: <4EB991C7.9080904@ziu.info> References: <20110208094843.GD11446@tango.0pointer.de> <20110208110730.GF23157@tango.0pointer.de> <20110208172822.GC21847@tango.0pointer.de> <20111031110613.GA1402@tango.0pointer.de> <20111102114416.7879b77f@notabene.brown> <20111102011615.GA5289@tango.0pointer.de> <20111102130334.09c3ab51@notabene.brown> <20111102133223.GC5119@tango.0pointer.de> <4EB873C9.5020900@ziu.info> <4EB95CDA.4090904@ziu.info> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4EB95CDA.4090904@ziu.info> Sender: linux-raid-owner@vger.kernel.org To: Lennart Poettering Cc: NeilBrown , Dan Williams , Andrey Borzenkov , Tomasz Torcz , systemd-devel@lists.freedesktop.org, linux-raid@vger.kernel.org List-Id: linux-raid.ids On 11-11-08 17:46, Michal Soltys wrote: > Then even existing intiramfs image could (probably) be mdmon-agnostic. Actually: chroot /run/initramfs mdmon --takeover --all worked just fine (after preparing new root - so after all mount --binds, and before pivot_root(8)). So in context of systemd instead of sysv scripts - a fork / chroot / exec mdmon / wait - instead of killing it would do the thing, followed by pivot_to_new_root(). Actually anything that could benefit from "immortality" in one or the other way (perhaps udevd, so e.g. lvm doesn't need --noudevsync ? - when taken over inside dracut's shutdown or anything similar after going back to initramfs) that can be pre-chrooted into /run/initramfs and exec'ed, should work just fine. For the record, udevd worked properly with pivot survival.