{"id":9533,"date":"2019-06-14T10:00:30","date_gmt":"2019-06-14T01:00:30","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=9533"},"modified":"2019-06-14T10:00:30","modified_gmt":"2019-06-14T01:00:30","slug":"raspberry-pi-3-model-b%e9%80%9d%e3%81%8f","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=9533","title":{"rendered":"Raspberry Pi 3 Model B+\u901d\u304f"},"content":{"rendered":"\n

昨年の4月に，当サーバーのハードウェアを，Raspberry Pi 3 Model B (RPi3)から，Raspberry Pi Model B+ (RPi3+)に切り替えました．<\/a><\/p>\n\n\n\n

今朝，rpi-updateをかけたら，新しいkernelがあったのですが，updateのファイルを受信したところで，スタックしてしまいました．<\/p>\n\n\n\n

以前もこんなタイミングでハングして，ブート用のSDカードの内容が破損したことがあるので，同じようにブート用のSDカードを初期化し，バックアップから内容を書き込み，再起動してみたところ，いきなり電源容量不足のマークが出てブートしてくれません．<\/p>\n\n\n\n

電源アダプターの故障や，つないでいるUSB3.0 HUBの故障の可能性もあるので，それぞれ取り替えてみましたが，電源容量不足の表示が出てブートしない状況のままです．<\/p>\n\n\n\n

さらに原因を探るために，サーバーの再起動を遅らせるのも嫌なので，現役を引退したRPi3につなぎ替えて，再起動しました．<\/p>\n\n\n\n

必要だったのは，ローカルなIPアドレスの変更（DHCPによる静的割り振り），それにともなうルーターの再起動です．これで良いかと思いましたが，外からサーバーにアクセスできません．ルーターの再起動で外向きのIPアドレスが変わり，ダイナミックDNS情報の更新が必要でした．<\/p>\n\n\n\n

これでなんとか，RPi3により原状復帰しました．<\/p>\n\n\n\n

このRPi3も故障する可能性がありますので，RPi3+の発注もしました．<\/p>\n","protected":false},"excerpt":{"rendered":"

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