{"id":144,"date":"2026-01-26T07:15:15","date_gmt":"2026-01-26T07:15:15","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=144"},"modified":"2026-01-29T08:08:58","modified_gmt":"2026-01-29T08:08:58","slug":"pcmanfm-pi","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=144","title":{"rendered":"pcmanfm-pi"},"content":{"rendered":"\n

Raspberry Pi 5 (RPi5)のGUIはほぼ直りました．完璧ではないです😓<\/p>\n\n\n\n

Geminiも勝手なことを言っていた<\/a>ようで，後から振り返ると違う方に導かれていました．<\/p>\n\n\n\n

最終的には自力で回復しました．Rapsberry Pi 4 Model B (RPi4)が余っているので，そちらにRaspberry Pi Imagerで最新OSを書き込んだSDカードを差し込んで起動し，動いているプロセスやインストールされているソフト，設定等を比較しました．<\/p>\n\n\n\n

その結果見えてきたのは，pcmanfm-pi<\/code>というプログラムかスクリプトが，lwrespawn<\/code>によって繰り返し起動されますが落ちているようで，systemctl status<\/code>やps aufx<\/code>で確認するといつもsleep 1<\/code>となっています1<\/a><\/sup>．<\/p>\n\n\n\n

それで，RPi5のほうで探してみると，pcmanfm-pi<\/code>などというプログラムやスクリプトはありません．RPi4で見ると，\/usr\/bin\/<\/code>にインストールしてあるスクリプトで，pcmanfm<\/code>を起動するためのラッパー2<\/a><\/sup>であることが判明しました．<\/p>\n\n\n\n

apt-file<\/code>というユーティリティーをインストールして検索すると，rpd-common<\/code>というパッケージに含まれていると解ります．<\/p>\n\n\n\n

そこで，apt install rpd-common<\/code>とすると，LX何とかで始まるGUIの重要なパッケージをいくつも削除してしまい，またGUIが起動しなくなりました．<\/p>\n\n\n\n

どうもRaspberry Pi OS独自のパッケージが依存性にかなり重大な問題を起こしているように思います．<\/p>\n\n\n\n

しかたがないので，rpd-common<\/code>は削除して，apt install raspberrypi-ui-mods<\/code>でGUIを復活させました．この状態ではpcmanfm-pi<\/code>はありませんから，比較用のRPi4からコピーしました．<\/p>\n\n\n\n

これでほぼ元通りです．残念ながらメニューの小さいアイコンなどが一部失われています．まあ，なんとかほぼ操作できるのでよしとします．<\/p>\n\n\n

  1. つまり，1秒間待ってまた起動を試みる． ↩︎<\/a><\/li>
  2. 引数や環境変数を与えて本プログラムを起動する． ↩︎<\/a><\/li><\/ol>","protected":false},"excerpt":{"rendered":"

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\u305d\u308c\u3067\uff0cRPi5\u306e\u307b\u3046\u3067\u63a2\u3057\u3066\u307f\u308b\u3068\uff0cpcmanfm-pi\u306a\u3069\u3068\u3044\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3084\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3042\u308a\u307e\u305b\u3093\uff0eRPi4\u3067\u898b\u308b\u3068\uff0c\/usr\/bin\/\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3067\uff0cpcmanfm\u3092\u8d77\u52d5\u3059\u308b\u305f\u3081\u306e\u30e9\u30c3\u30d1\u30fc\u3067\u3042\u308b\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\uff0e apt-file\u3068\u3044\u3046\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30fc\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u691c\u7d22\u3059\u308b\u3068\uff0crpd-common\u3068\u3044\u3046\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u3068\u89e3\u308a\u307e\u3059\uff0e \u305d\u3053\u3067\uff0capt install 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