TrueNASの自己証明書を削除する際に「[EFAULT] Certificate is being used by following service(s): 1) UI Service 」エラーが発生する

エラー内容

[EFAULT] Certificate is being used by following service(s): 1) UI Service 

解決法

証明書の切り替えは削除ではなく、System -> General Settings -> GUIから変更する。

参考: https://kha730.substack.com/p/server-certificates