Re: ownership of /proc and /sys

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On Di, 23.07.19 10:56, Adam Jackson (ajax@xxxxxxxxxx) wrote:

> On Tue, 2019-07-23 at 11:01 +0200, Miroslav Suchý wrote:
> > Hi,
> > directories /proc/ and /sys/ are owned by filesystem package. This worked in past where we needed those directories to
> > exist so we can mount the procfs and sysfs.
> >
> > However this cause issues in containers:
> > https://bugzilla.redhat.com/show_bug.cgi?id=1548403
> > and during building where hacks are needed:
> > https://github.com/rpm-software-management/mock/pull/234/commits/d7e0b413c83bec00fd1ed75ee15122a9cc6db62e
> >
> > I have bunch of ideas, but all of them ugly (e.g., not own that file and create that directories in scriptlet). Do you
> > have any ideas about this situation?
>
> Make systemd create them? It has to manage them anyway.

It does, if they are missing. In fact, it's totally supported to boot
up with an empty / (for example: tmpfs, which is what
systemd.volatile=yes on the kernel cmdline will do) with the one
exception of a populated /usr and systemd will create all the basic
mount points and symlinks needed to make the system boot.

That said, that only works if / is writable. Which is not a given.

Lennart

--
Lennart Poettering, Berlin
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