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Aws の Ubuntu 18.04 を 19.10 にアップグレード

AWS の Ubuntu 18.04 を 19.10 にアップグレードする方法です。

設定ファイルの変更

sudo vi /etc/update-manager/release-upgrades

次のように変更します。

/etc/update-manager/release-upgrades
Prompt=normal

リリースアップグレード

sudo do-release-upgrade

再起動

sudo shutdown -r now

更新できたことを確認するが、まだ 19.04 だった。

$ cat /etc/os-release 
NAME="Ubuntu"
VERSION="19.04 (Disco Dingo)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 19.04"
VERSION_ID="19.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=disco
UBUNTU_CODENAME=disco

もう一度、do-release-upgrade を行う

$ cat /etc/os-release 
NAME="Ubuntu"
VERSION="19.10 (Eoan Ermine)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 19.10"
VERSION_ID="19.10"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=eoan
UBUNTU_CODENAME=eoan
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