Re: systemd: Failed to initialize SELinux context: Permission denied

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On 12/07/2012 08:44 AM, Bruno Wolff III wrote:
> On Fri, Dec 07, 2012 at 08:22:10 -0500, John.Florian@xxxxxxxx wrote:
>> 
>> Thinking selinux might be preventing the relabel from happening (?!?) I 
>> rebooted with selinux=0 so that I could reconfig /etc/sysconfig/selinux 
>> having SELINUX=permissive, touched /.autorelabel and rebooted again.
>> This time I saw the relabel process do its thing and trigger a reboot.  I
>> then went back to reconfig /etc/sysconfig/selinux having
>> SELINUX=enforcing, rebooted and all seemed well, finally.
> 
> The autorelabel is supposed to happen early in the boot process and I think
> it is supposed to work even if you system normally comes up in enforcing
> mode. So that sounds like a bug.
> 
> (You can come up in permissive mode using the enforcing=0 kernel parameter.
> This is a bit more convenient in some cases for a one time boot, than
> changing the selinux configuration.)
> 
> This is generally the safeest way to relabel as you don't want processes
> that started with the wrong context creating more incorrectly labelled
> files while you are trying to fix things up (with say restorecon).
> 
>> So, I'm all good now, but there may be some bugs in that "relabel should 
>> happen automatically" bit. -- John Florian
Yes systemd is supposed to set the machine into permissive mode for the
relabel, but I guess if the machine is totally mislabeled, systemd might be
prevented from doing this, although I would figure systemd would be running as
the kernel label.  Bottom line this would be difficult to diagnose what
happened to force you to relabel in permissive mode.
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