I am running the upgrade(12.10 to 13.04) through terminal and it keeps getting stuck at this:
Failed to lock /var/cache/apt/archives/lock
What do I do? I have root access. I have no idea what else to try other than a clean install.
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done
Calculating the changes
Calculating the changes
Do you want to start the upgrade?
3 packages are going to be removed. 155 new packages are going to be
installed. 1204 packages are going to be upgraded.
You have to download a total of 595 M. This download will take about
1 hour 15 minutes with a 1Mbit DSL connection and about 23 hours with
a 56k modem.
Fetching and installing the upgrade can take several hours. Once the
download has finished, the process cannot be canceled.
Continue [yN] Details [d]y
Fetching
Could not download the upgrades
The upgrade has aborted. Please check your Internet connection or
installation media and try again. All files downloaded so far have
been kept.
Failed to lock /var/cache/apt/archives/lock
Restoring original system state
Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done
root@chaitanya-XPS-Ubuntu:~#
Best Answer
I had this happen. Its because you have a package manager open. See if you have synaptic, or other apt open, and close it. Also if you have GUI update manager running at the same time it will give you that same error.