{"id":11322,"date":"2020-11-10T17:10:12","date_gmt":"2020-11-10T08:10:12","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=11322"},"modified":"2020-11-10T17:10:12","modified_gmt":"2020-11-10T08:10:12","slug":"raspberry-pi%e3%81%a7%e6%9a%ae%e3%82%89%e3%81%9b%e3%82%8b%e3%81%8b-3%e3%80%80ssd%e3%81%a7%e4%b8%80%e6%8c%99%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=11322","title":{"rendered":"Raspberry Pi\u3067\u66ae\u3089\u305b\u308b\u304b (3)\u3000SSD\u3067\u89e3\u6c7a"},"content":{"rendered":"\n

プチフリーズ的な問題<\/a>は，SDカードをルートドライブにしているからに違いないと解っていたので，SSDに替えることにしました．<\/p>\n\n\n\n

もともと32GBのSDカードで動かしていたので，128GBもあればいいのですが，今SSDが値崩れ状態のようで，960GBで，USB3.0エンクロージャーに入ったものが，1万円しないので，大きすぎな嫌いはありますが，先々の使い回しもできるので購入しました．<\/p>\n\n\n\n

今日（2020年11月10日）届いたので，早速セットアップしました．すでにブートローダーがUSBドライブ起動に対応しているので，最初のmsdos(vfat)のパーティションにSDカードの最初のパーティションを，残る適当なパーティションをLinux(ext4)にして，残るSDカードのLinux部分をコピーということで大体作業は終わりです．<\/p>\n\n\n\n

ターゲットマシンをSDカードでブートさせて，その上でコピーもできますが，\/devなど，生きているときと死んでいるときで中身が違うのがありますから，別のLinuxマシンにSDカードとSSDをマウントして，rsyncなどでコピーするほうが楽です．<\/p>\n\n\n\n

コピーした内容のうち，2つのファイルだけ変更しなければなりません．\/etc\/fstabと，\/boot\/cmdline.txtです．今回どちらも，\/dev\/sdaなんとかでなく，UUIDを入れてみました．blkidで表示される長ったらしいやつです．<\/p>\n\n\n\n

SSDをつなぎ，SDカードを差し込まないで，あとは，無事起動することを祈って電源を入れたらあっさり起動しました．<\/p>\n\n\n\n

ほとんど問題なく使えます．プチフリーズ的なことは一切起きません．ただ，今どきのパソコンに比べれば，同等とまでは言えず，ほんの少し遅いノートパソコンくらいかなという感じです．しばらく様子を見てみたいと思います．<\/p>\n\n\n

\n
\"\"
Slackware ARMが走るサーバー（左: Raspberry Pi 4 Model B RAM 4GB）と今回購入したRaspberry Pi OSの走るWS (同8GB)．撮影のため無理やり寄せています😥<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"

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