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Ubuntu Server 18.04 で AMIを作成後繋がらなくなる

Posted at

色々原因はあるかと思いますが、私の今回のケースはデスクトップ環境をインストールしたのが理由の模様。

環境

・Ubuntu Server 18.04 LTS (HVM), SSD Volume Type
・t3.small
Ubuntu Mate Desktopをインストール後AMIを作成、AMIから起動するとSSHなど外部からのアクセスが繋がらなくなる
※AMI構築にはPakcerを利用

解決策

/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.confを削除してからAMIを作成

原因

NetworkManagerがNW設定の諸々を無効化してしまうからの模様

10-globally-managed-devices.conf
[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:wwan

参考

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