[Cialug] Spontaneous Outbreak of Read-Only-ness

[Todd Pierce]

Hi all,

Interesting topic (and funny linguistic inventions!)

If you feel at all inclined to keep a log file of using (and what happens
with) the fsck, smartctl and mfr's tools I'd be thrilled.  I *know* I'm
going to run into this problem in the future.

-Todd

On Wed, Feb 24, 2016 at 11:27 AM, Josh More <jmore at starmind.org> wrote:

> That happens if there is a detected problem with a file system.  Linux
> forces it to remount as read only to protect the data.
>
> Do a deep fsck on those volumes and run drive tests using both smartctl and
> the manufacturer's tools.
>
> On Wed, Feb 24, 2016 at 11:24 AM, Todd Walton <tdwalton at gmail.com> wrote:
>
> > I've had two weird read-only-izings happen in the past 24 hours.
> >
> > First, a RHEL 6 box: Found I couldn't write files to /tmp, even as root.
> > Further poking revealed that I couldn't write to / either. 'cat
> > /proc/mounts' said / was rw. Changing SELinux to permissive didn't help.
> > Rebooted. All is well.
> >
> > Then, a CentOS 6 box: Tried to update root password. It took the password
> > twice and then said "passwd: Authentication token manipulation error". I
> > tried to mv the shadow file, thinking maybe I'd re-shadow passwd, but it
> > wouldn't let me move it because... read-only filesystem. Again, 'cat
> > /proc/mounts' showed that that should not have been the case. I rebooted
> > and all is now well.
> >
> > I can't troubleshoot these further right now because I made the problem
> go
> > away. But anybody seen this before?
> >
> > --
> > Todd
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> >
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