On Thu, 2014-04-10 at 08:02 -0500, Jeremiah Jahn wrote:
On Thu, Apr 10, 2014 at 5:46 AM, Fabian Deutsch <fabiand@redhat.com> wrote:
> Am Donnerstag, den 10.04.2014, 09:19 +0300 schrieb Itamar Heim:
>> On 04/09/2014 11:01 PM, Jeremiah Jahn wrote:
>> > I'm assuming the answer is no. But for some reason I seem to be
>>
>> the answer is yes actually. if you want a host you can change, use plain
>> fedora/rhel/centos as the host.
>> Fabian can reply to the rest.
>
> Yep. Node has a read-only root filesystem, which has some overlays to
> allow limited changes.

And yet I've been able to edit the /etc/hosts file before this
problem? Does it go readonly after a while?

Actually /etc is mounted in tmpfs so not persistent:

cat /proc/mounts |grep etc
none /etc tmpfs rw,rootcontext=system_u:object_r:var_lib_t:s0,seclabel,relatime 0 0
So if you want to change things you have to change it in "/config/etc/"

>> the answer is yes actually. if you want a host you can change, use plain
>> fedora/rhel/centos as the host.
>> Fabian can reply to the rest.

You can just as easily do a "mount -o rw,remount /" to edit things if you want but you have to do this on every node and again after upgrading to a newer version of node.

I see it's there in the wiki:

http://www.ovirt.org/Node_Troubleshooting#Making_changes_on_the_host


Kind regards,

Jorick Astrego
Netbulae B.V.