Andrei Borzenkov <arvidj...@gmail.com> wrote on 03/11/2015 08:44:28 PM:
> From: Andrei Borzenkov <arvidj...@gmail.com> > To: aaron_wri...@selinc.com > Cc: systemd-devel@lists.freedesktop.org > Date: 03/11/2015 08:44 PM > Subject: Re: [systemd-devel] initrd mount wrongly unmounted during bootup > > В Wed, 11 Mar 2015 11:26:52 -0700 > aaron_wri...@selinc.com пишет: > > > I'm working with an embedded device that mounts / and /var in initrd. It > > then switches root and fires up systemd. Early in the boot, after paths > > target, /var gets unmounted. I want systemd to not do that, but I can't > > figure out how to stop it. > > I would like systemd to leave /var mounted, but still unmount it during > > shutdown. I would rather not move the mounting of /var out of initrd. Is > > this possible? > > I'm trying to use a very stripped down systemd. As minimal as possible. > > Do you use udev in initrd? > No. initrd is a custom script I wrote, and it mounts devtmpfs for its devices. > > I'm using systemd-219. The logs say that var.mount is bound to an inactive > > unit, and it is stopping too. I assume that is why /var gets unmounted, > > but I don't know what to do to stop it. There is no /etc/fstab file. There > > is no var.mount file. > > I assume I'm either missing something simple, or it is not possible. > > Did you try this commit? > > > commit 628c89cc68ab96fce2de7ebba5933725d147aecc > ...snip... > I was finally able to get /var to stay mounted when I included the local-fs.target and local-fs-pre.target units on the device. Apparently they are used magically by systemd. I'm not sure why or how, but it does finally work, so I'm happy. This leads to my other question about what units are required. I'll continue on that discussion on that thread.
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