Linux Mint Forums

Its not dumb, it's actually kind of puzzling, cause if you did a fresh install, there should be quite a few updates. What are you system specs, and when you burned the ISO, did you use the lowest speed? also, can you connect to the internet? This could be a few different things, so we need as much info as you can provide.

I get the same problem and have to disable the Medibuntu repo in the sources list as it is always locking up mintupdate. To check open a terminal and do a "sudo apt-get update". If it gets to the last line and gets stuck, just make a note of which repo you are having problems with and comment it out of your sources.list. Also it can stop mintinstall from working in the software portal.

ctothebizza wrote:I ran "sudo apt-get update" and this is what it showed me:

E: Could not get lock /var/lib/apt/lists/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the list directory

I also noticed that the software portal does not work either. Same sort of situation, just locks up on "backing up your APT sources."

Press ALT+F2, then type "gksu nautilus" and enter your password. BE CAREFUL as you are now running nautilus as root. Navigate to /var/lib/apt/lists in the file system and find the file called "lock" and delete it. Shut down root nautilus and do another "sudo apt-get update" in a terminal and all should be OK, but remember when you are root in nautilus you can seriously screw your system if you don't know what you are doing.

I had this same problem. Go to synaptic package manager and click on "mark all updates" and apply, that should get all the updates then Mint update will work