Am 2017-05-16 um 22:01 schrieb Ryan Barry:

On Mon, May 15, 2017 at 1:09 PM, Matthias Leopold <matthias.leop...@meduniwien.ac.at <mailto:matthias.leop...@meduniwien.ac.at>> wrote:

    thanks, i guess configuring repositories in oVirt Node can only be
    achieved when using Foreman/Satellite integration, is that correct?
    i've just started to use oVirt Node and i'm beginning to realize
    that things are a _little_ bit different compared to a standard
    linux host.


Well, yes/no. We whitelist which packages are able to be updated from the oVirt repositories and disable the base centos repositories, but you can easily change "enabled=0" to "enabled=1" in any of them, or add your own repos just like you would with CentOS.

In general, I'd recommend not including updates for any packages which are part of Node itself, but that decision is yours to make.


    this brings me to another update related question:
    right now oVirt Nodes in my test environment can connect to the
    internet and there recently was an update available which i applied
    through the engine gui, which seemed to finish successfully. i
    remember wondering how i could check what actually changend, there
    was eg. no kernel change IIRC. today i discovered that on both
    updated hosts /tmp/imgbased.log exists and ends in an error:


Node is still an A/B image, so you'd need to reboot in order to see a new kernel, if it's part of a new image.


    subprocess.CalledProcessError: Command '['lvcreate', '--thin',
    '--virtualsize', u'8506048512B', '--name',
    'ovirt-node-ng-4.1.1.1-0.20170406.0', u'HostVG/pool00']' returned
    non-zero exit status 5

    i have to mention i manually partitioned my oVirt Node host when i
    installed it from the installer ISO (because i want to use software
    raid).
    i used partitioning recommendations from
    https://bugzilla.redhat.com/show_bug.cgi?id=1369874
    <https://bugzilla.redhat.com/show_bug.cgi?id=1369874> (doubling size
    recommendations).


As long as you're thinly provisioned, this should update normally,, though I have to say that I haven't tried software RAID.


    did my oVirt Node update complete successfully?
    how can i check this?
    why was there an lvcreate error?


I'll try to reproduce this, but attempting the lvcreate by hand may give some usable debugging information.


    'imgbase layout' says:
    ovirt-node-ng-4.1.1.1-0.20170406.0
      +- ovirt-node-ng-4.1.1.1-0.20170406.0+1


If 'imgabase layout' only shows these, then it's likely that it didn't update. Node uses LVM directly, so "lvm lvs" may show a new device, but from the command above, I'm guessing it wasn't able to create it. I'd suspect that it wasn't able to create it because it's the same version, and LVM sees a duplicate LV. Can you attach your engine log (or the yum log from the host) so we can see what it pulled?


i'll try the update with another oVirt Node where i'll stay with standard partitioning and see what happens. i have to understand the update process more thoroughly anyway

thx
matthias


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