Upgrade 12.04 to 14.04 problems

[Jack McGee]

I am trying to upgrade my desktop.
First it did not find any new upgrades.
So I edited

|/etc/update-manager/release-upgrades and changed |


|Prompt=never to Prompt-normal now when I do upgrade I get: ||jmcgee at jmcgee-desktop:/etc/cups/ppd$ sudo nano 
/etc/update-manager/release-upgrades 
jmcgee at jmcgee-desktop:/etc/cups/ppd$ do-release-upgrade -d Checking for 
a new Ubuntu release Err Upgrade tool signature 404 Not Found [IP: 
91.189.92.200 80] Err Upgrade tool 404 Not Found [IP: 91.189.92.200 80] 
Fetched 0 B in 0s (0 B/s) WARNING:root:file 'quantal.tar.gz.gpg' missing 
Failed to fetch Fetching the upgrade failed. There may be a network 
problem. jmcgee at jmcgee-desktop:/etc/cups/ppd$ |

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