自分宛の注意事項です．<\/p>\n\n\n\n
Raspberry Piは，バッテリーで駆動される時計を持っていませんから，起動時は1970年1月1日になってしまいます．<\/p>\n\n\n\n
Slackware ARMは他のdistroと違って，起動スクリプトにこれをなんとかする仕組みがないので，ntpdが同期して最初に内蔵時計を更新するまで，1970年1月1日のままで，いろいろ不都合が起きます．<\/p>\n\n\n\n
そこで，rc.ntpdのstart()内に，ntpdateを使ってとりあえずどこかの時間サーバーから時刻をもらってくるコマンドを書き加えています．<\/p>\n\n\n\n
しかし，ntpのパッケージをupdateすると，オリジナルのntpdateコマンドの入ってないスクリプトに上書きされて，この機能が失われてしまいます．<\/p>\n\n\n\n
ということで，リブートしたとき1970年1月1日になるようだったら，rc.ntpd-has-ntpdateとして保存しているスクリプトをrc.ntpdに上書きコピーすること（念のため当該スクリプトが更新されていないかも確認する）．<\/p>\n","protected":false},"excerpt":{"rendered":"
\u81ea\u5206\u5b9b\u306e\u6ce8\u610f\u4e8b\u9805\u3067\u3059\uff0e Raspberry Pi\u306f\uff0c\u30d0\u30c3\u30c6\u30ea\u30fc\u3067\u99c6\u52d5\u3055\u308c\u308b\u6642\u8a08\u3092\u6301\u3063\u3066\u3044\u307e\u305b\u3093\u304b\u3089\uff0c\u8d77\u52d5\u6642\u306f1970\u5e741\u67081\u65e5\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\uff0e Slackware ARM\u306f\u4ed6\u306edistro\u3068\u9055\u3063\u3066\uff0c\u8d77\u52d5\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3053\u308c\u3092\u306a\u3093\u3068\u304b\u3059\u308b\u4ed5\u7d44\u307f\u304c\u306a\u3044\u306e\u3067\uff0cntpd\u304c\u540c\u671f\u3057\u3066\u6700\u521d\u306b\u5185\u8535\u6642\u8a08\u3092\u66f4\u65b0\u3059\u308b\u307e\u3067\uff0c1970\u5e741\u67081\u65e5\u306e\u307e\u307e\u3067\uff0c\u3044\u308d\u3044\u308d\u4e0d\u90fd\u5408\u304c\u8d77\u304d\u307e\u3059\uff0e \u305d\u3053\u3067\uff0crc.ntpd\u306estart()\u5185\u306b\uff0cntpdate\u3092\u4f7f\u3063\u3066\u3068\u308a\u3042\u3048\u305a\u3069\u3053\u304b\u306e\u6642\u9593\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u6642\u523b\u3092\u3082\u3089\u3063\u3066\u304f\u308b\u30b3\u30de\u30f3\u30c9\u3092\u66f8\u304d\u52a0\u3048\u3066\u3044\u307e\u3059\uff0e \u3057\u304b\u3057\uff0cntp\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092update\u3059\u308b\u3068\uff0c\u30aa\u30ea\u30b8\u30ca\u30eb\u306entpdate\u30b3\u30de\u30f3\u30c9\u306e\u5165\u3063\u3066\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u4e0a\u66f8\u304d\u3055\u308c\u3066\uff0c\u3053\u306e\u6a5f\u80fd\u304c\u5931\u308f\u308c\u3066\u3057\u307e\u3044\u307e\u3059\uff0e \u3068\u3044\u3046\u3053\u3068\u3067\uff0c\u30ea\u30d6\u30fc\u30c8\u3057\u305f\u3068\u304d1970\u5e741\u67081\u65e5\u306b\u306a\u308b\u3088\u3046\u3060\u3063\u305f\u3089\uff0crc.ntpd-has-ntpdate\u3068\u3057\u3066\u4fdd\u5b58\u3057\u3066\u3044\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3092rc.ntpd\u306b\u4e0a\u66f8\u304d\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\uff08\u5ff5\u306e\u305f\u3081\u5f53\u8a72\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u66f4\u65b0\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3082\u78ba\u8a8d\u3059\u308b\uff09\uff0e<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_daextam_enable_autolinks":"","footnotes":""},"categories":[8,27],"tags":[],"class_list":["post-9437","post","type-post","status-publish","format-standard","hentry","category-linux","category-rasapberry-pi"],"publishpress_future_action":{"enabled":false,"date":"2026-05-15 01:55:36","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/9437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9437"}],"version-history":[{"count":0,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/9437\/revisions"}],"wp:attachment":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}