On Feb 16, 2:14 pm, Jair Gaxiola <jyr.gaxi...@gmail.com> wrote:
> On Thu, Feb 16, 2012 at 1:28 PM, Denmat <tu2bg...@gmail.com> wrote:
> > Hi,
>
> > Is it a read only file system?
>
> > change from
> > purged to present failed: Could not set 'present on ensure: Read-only
> > file system - /tmp/puppet20120216-1063-18q7lsz-0 at
> > /tmp/vagrant-puppet/manifests/vagrant.pp:15
>
> I have of file system read only,
>
> drwxrwxrwt  3 root    root    4096 Feb 16 11:43 .
> drwxr-xr-x 22 root    root    4096 Jul 21  2011 ..
> -rw-------  1 root    root    2799 Feb 16 11:49 puppet20120216-1053-1p4uxc-0
> -rw-------  1 vagrant vagrant  191 Feb 16 11:43 vagrant-network-entry
> -rw-r--r--  1 root    root     283 Feb 16 11:43 vagrant-network-interfaces
> drwxr-xr-x  4 root    root    4096 Feb 16 11:43 vagrant-puppet
> vagrant@lucid32:~$
> drwxr-xr-x 4 root    root    4096 Feb 16 11:43 .
> drwxrwxrwt 3 root    root    4096 Feb 16 11:43 ..
> drwxr-xr-x 1 vagrant vagrant  102 Feb 16 11:49 manifests
> drwxr-xr-x 1 vagrant vagrant  238 Feb 15 15:23 modules-0
> vagrant@lucid32:~$ ls -al /tmp/vagrant-puppet/manifests
> total 8
> drwxr-xr-x 1 vagrant vagrant  102 Feb 16 11:49 .
> drwxr-xr-x 4 root    root    4096 Feb 16 11:43 ..
> -rw-r--r-- 1 vagrant vagrant 1444 Feb 16 10:32 vagrant.pp
>
> I run sudo dpkg --configure -a from console returns:
>
> dpkg: unable to access dpkg status area: Read-only file system


You have misunderstood Denmat's question, though it was really a
statement presented in question form.  Your tools are telling you that
the *filesystem* is read-only.  That has nothing to do with the
permission bits for individual files, and everything to do with how
the filesystem in question (apparently the root filesystem on the
affected node) is mounted.  You will find, I predict, that you cannot
modify the filesystem by any means, including such trivial commands as
"touch /tmp/foo".

Since it seems unlikely to be itentional for the root filesystem to be
monuted read-only during normal system operation, you should do two
things:

1) Figure out why it is mounted read-only
2) Fix the problem and remount the filesystem read-write

You might be able to achieve all that by simply rebooting the system
(cleanly, if possible).

For what it's worth, the only time I have ever had a filesystem
unexpectedly transition from read/write to read-only happened when the
system detected filesystem errors during normal operation.  It
remounted the filesystem read-only to prevent (further) filesystem
damage.  I quickly discovered that the system had a failing memory
module, which was probably the root cause of the episode.


John

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