linux-kernel - Re: Mounting /proc w/ kernel 3.4.0 - "uid" parameter no longer valid?

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Message-ID: <87wr411x4b.fsf@xmission.com>
Date:	Thu, 24 May 2012 08:17:56 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	"D. Stussy" <replies+newsgroups@...lvw.ampr.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Mounting /proc w/ kernel 3.4.0 - "uid" parameter no longer valid?

"D. Stussy" <spam+newsgroups@...-arc.ampr.org> writes:

> proc:  unrecognized mount option "uid=1" or missing value
>
> This works under 3.3.6 and earlier (I never tried 3.3.7).  It appears that the
> "uid" mount option was removed.  WHY?  More importantly, where is this change
> listed?  I didn't see it in the git log.
>
> This is really bad as I rebooted a remotely colocated server and since the
> procfs is not mounted, I cannot log in via SSH to correct the problem.
>
> OK, so there's not that much point in changing the UID of the procfs files, but
> I preferred to set their default ownership to a non-privileged user. 

There has never been a uid= option to /proc in Linus's tree.  I believe
if you look you will find this feature was from a patch (perhaps from
your distro) that added that support.

Eric
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