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Why doesn't update-manager allow me to upgrade distribution? [duplicate]

Why doesn't update-manager allow me to upgrade distribution? [duplicate]

I have an Ubuntu 9.04 PC behind a corporate firewall and proxy server. This requires that in order to get update-manager to fetch and apply updates, I must set the proxy and authentication settings in the Synaptic network configuration. Once done, I can check for updates and things work smoothly (except I don't get popup notifications of new updates, must manually check periodically).

Asked by: Guest | Views: 48
Total answers/comments: 1
Guest [Entry]

"You may want to use update-manager -d to display development release upgrades.

However, you may have problems upgrading from behind a proxy, as there seems to be a bug in update-manager which causes it to ignore proxy settings for distribution upgrades."