さくらVPS で Ubuntu 10.04 (LTS) から 11.10 にアップグレードするには
さくらのVPSがリニューアルしたので移行するべく新しい VPS を同環境にセットアップしようとしたら意外に嵌まったのでメモ。 まずはカスタムOSインストールで Ubuntu 10.04 を入れておく。 続いて /etc/update-manager/release-upgrades を編集してアップグレードターゲットを LTS(長期サポート版) から normal(通常)に変更する。 # Default behavior for the release upgrader. [DEFAULT] # Default prompting behavior, valid options: # never - Never check for a new release. # normal - Check to see if a new release is available. If more than one new # release is found, the release upgrader will attempt to upgrade to # the release that immediately succeeds the currently-running # release. # lts - Check to see if a new LTS release is available. The upgrader # will attempt to upgrade to the first LTS release available after # the currently-running one. Note that this option should not be # used if the currently-running release is not itself an LTS # release, since in that case the upgrader won’t be able to # determine if a newer release is available. Prompt=normal ...