curl : Depends: libcurl3 (= 7.26.0-1+wheezy11) but it is not going to be installed

uh.... always try in situatios like this.

apt-get -f install

Sub is right on plex though. I just say this for future reference. Plugins that are in the repos installed via the plugin section will install the dependencies.

Something else that is good to know. If you install a plugin via command line the dependencies will not be installed. You will have to do an "apt-get -f install" afterwards. If you upload the plugin in the via the upload manager in the web gui and then install via the plugin section the dependencies will be installed. So it is better to install the plugins via the web gui.

Did you enable the plex repo??? in OMV Extras?

Did you try:

apt-get -f install

1. Restart OMV using shutdown -r now.
2. Delete the broken curl packages apt-get remove --purge remove curl.

Afterwards,
1. Do apt-get update.
2. Install the OMV-Extras.org plugin from the Web Interface. @subzero79 has a guide for that.
3. Goto OMV-Extras.org > Secondary > tick Enable Plex Media Server repository.
4. Goto Plugins and install openmediavault-plexmediaserver 1.0.9 (or latest).
5. Change your DNS Server settings, Primary: The IP address of your router & Secondary: 8.8.8.8

You can login to Plex by going to hostname:32400/web/index.html (Replace hostname with the IP address you use to login to the OMV GUI)

You should let people answer the question. It may be sources.list issue.

Check this 1st:
5. Change your DNS Server settings, Primary: The IP address of your router & Secondary: 8.8.8.8 save/apply (this needs to be done if you changed to static ip)

Then in command line enter this to reboot to get off dpkg lock if it is locked:
reboot

After you are rebooted do this in command line:
dpkg --configure -a

This should install the dependency for curl if DNS Server was the problem. If this did not work give output of this command:

cat /etc/apt/sources.list

If the dpkg --configure -a did work you can go in the web gui and try to install omv extras again, it is already uploaded.

After installing that you can enable the plex repo and install it in the plugin section.

If you did mess up your sources.list we can give you a copy to fix it.

BTW, you can test for DNS issue before you even do anything....

ping 8.8.8.8 -c 4 (if this gives you how many milliseconds to reach host)

ping google.com -c 4 (and this says unknown host it is most likely you need to set DNS Servers)

You don't need to install curl separately, a fresh installation of Plex through OMV-Extras.org installs the necessary dependencies. Purge the broken curl packages first, since OMV builds the dependency list prior to any installation this could be whats messing with his installation attempts.

P.S. @tekkb sorry for disliking your reply, that was a mistake, i'm still a newbie here and i actually meant to like it instead.

Give results of the cat command from above.

It had to be 32 bit. Where did you get this install from? You can take off the shell.ninthgate line. Was this install from an OMV ISO?

sorry, repeated remove twice. try apt-get --purge remove curl Do that and go ahead with the other steps.

I would just:

dpkg --configure -a

edit sources.list:
take off the ninthgate line in the sources.list

then:
apt-get update

if no errors try to install omv extras in the web gui again.

PS- if he is still having problems with the curl we need to see results of apt-get update. We need to see the repos that are causing errors.