I am current trying to upgrade a ubuntu server via ssh. I am stuck since i can not perform a do-release-upgrade. It tries maverick instead of trying 12.04

Essentially I think he is failing because 12.04 is an old release. I had to change /var/lib/update-manager/meta-release to start using old-releases mirrors instead of archive since it was failing before with another problem.

My sources : http://pastebin.com/xrFTaKjn
My /var/lib/update-manager/meta-release : http://pastebin.com/A3Zs6DYx

What is wrong?

My error:

Checking for a new ubuntu release Done Upgrade tool signature Done Upgrade tool Done downloading             authenticate 'maverick.tar.gz' against 'maverick.tar.gz.gpg'  extracting 'maverick.tar.gz' tar: Removing leading `/' from member names



Reading cache



Checking package manager Reading package lists... Done Building dependency tree         Reading state information... Done Building data structures... Done  Reading package lists... Done     Building dependency tree           Reading state information... Done Building data structures... Done 



Updating repository information WARNING: Failed to read mirror file 35% [Working]  Error during update 



A problem occurred during the update. This is usually some sort of  network problem, please check your network connection and retry. 



W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick/main/binary-amd64/Packages.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick/restricted/binary-amd64/Packages.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick/main/source/Sources.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick/restricted/source/Sources.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick-updates/main/binary-amd64/Packages.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick-updates/restricted/binary-amd64/Packages.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick-updates/main/source/Sources.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick-updates/restricted/source/Sources.gz 404 Not Found [IP: 91.189.92.202 80]  , W:Failed to fetch  http://archive.ubuntu.com/ubuntu/dists/maverick-updates/universe/source/Sources.gz 404 Not Found [IP: 91.189.92.202 80]  , E:Some index files failed to download, they have been ignored, or  old ones used instead. 





Restoring original system state



Aborting Reading package lists... Done     Building dependency tree    Reading state information... Done Building data structures... Done