{"id":1264,"date":"2013-07-21T01:38:58","date_gmt":"2013-07-21T05:38:58","guid":{"rendered":"http:\/\/www.a2life.info\/w\/?p=1264"},"modified":"2014-02-07T13:30:05","modified_gmt":"2014-02-07T18:30:05","slug":"sd-%e3%81%8b%e3%83%bc%e3%81%a9%e3%81%ae%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9%e3%82%b9%e3%83%94%e3%83%bc%e3%83%89","status":"publish","type":"post","link":"https:\/\/www.a2life.info\/w\/?p=1264","title":{"rendered":"Raspberry Pi\u3001SD \u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3068, \u30ab\u30fc\u30c9\u7834\u640d\u306e\u539f\u56e0\u306b\u3064\u3044\u3066"},"content":{"rendered":"

\u8868\u984c\u306e\u4ef6\u3002\u81ea\u5206\u306f\u306a\u3093\u3068\u306a\u304f\u3001SD\u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u306f\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3088\u308a\u3082\u65e9\u3044\u306e\u3060\u3001\u3068\u601d\u3063\u3066\u3044\u305f\u306e\u3060\u304c\u3001\u3053\u308c\u306f\u5b9f\u306f\u5927\u5909\u306a\u601d\u3044\u9055\u3044\u3060\u3063\u305f\u3002\u3000\u601d\u3044\u8fbc\u3093\u3067\u3044\u305f\u7406\u7531\u306f\u3001\u6a5f\u68b0\u90e8\u54c1\u306b\u8aad\u307f\u66f8\u304d\u3059\u308b\u3088\u308a\u3001\u534a\u5c0e\u4f53\u306e\u307b\u3046\u306b\u8aad\u307f\u66f8\u304d\u3059\u308b\u307b\u3046\u304c\u65e9\u3044\u306e\u3060\u308d\u3046\u3068\u5358\u7d14\u306b\u8003\u3048\u3066\u3044\u305f\u306e\u3060\u304c\u3001\u3069\u3046\u3082\u9055\u3046\u3089\u3057\u3044\u3002\u3000SD\u30ab\u30fc\u30c9\u306e\u69cb\u9020\u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u3088\u3046\u3060\u304c\u3001\u540c\u3058\u30ab\u30fc\u30c9\u3067\u3082\u521d\u671f\u306eSD\u30ab\u30fc\u30c9\u3068\u73fe\u5728\u666e\u901a\u306b\u58f2\u3063\u3066\u3044\u308bSDHC\u3067\u3082\u3082\u3061\u308d\u3093\u5dee\u304c\u3042\u308b\u3002\u3000\u305d\u308c\u3067\u3082\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30b9\u30d4\u30fc\u30c9\u306b\u306f\u304b\u306a\u308f\u306a\u3044\u306e\u3060\u3001\u3068\u3044\u3046\u3002
\n\u3061\u306a\u307f\u306b\u3000Raspberry Pi\u3068linux \u306edd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u306e\u901f\u5ea6\u3092\u7c21\u6613\u7684\u306b\u6e2c\u3063\u3066\u307f\u305f\u5831\u544a\u304c
\n\u3053\u306e\u30b5\u30a4\u30c8\u306b\u8f09\u3063\u3066\u3044\u305f<\/a>\u306e\u3067\u3001\u540c\u3058\u65b9\u6cd5\u3067\u3001\u4eca\u56de\u81ea\u5206\u306e\u30d1\u30a4\u306b\u4f7f\u3063\u305fTranscend \u306e8GB\u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3092\u6e2c\u3063\u3066\u307f\u305f\u3089\u300115.7MB\/S\u3068\u51fa\u305f.<\/p>\n

\r\nroot@raspi1:\/home\/pi# time dd if=\/dev\/zero of=.\/ddfile bs=8k count=20000 && sync\r\n20000+0 records in\r\n20000+0 records out\r\n163840000 bytes (164 MB) copied, 10.4644 s, 15.7 MB\/s\r\n\r\nreal\t0m10.657s\r\nuser\t0m0.080s\r\nsys\t0m2.400s\r\n\r\n<\/pre>\n
(\u3053\u3053\u3067\u4f7f\u3063\u3066\u3044\u308bdd\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306e\u4f7f\u3044\u65b9\u3092\u9593\u9055\u3048\u308b\u3068\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u4e2d\u8eab\u304c\u7dba\u9e97\u306b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u308a\u3001\u3053\u308f\u308c\u3066\u3057\u307e\u3063\u305f\u308a\u3059\u308b\u3001\u3068\u3044\u3046linux killer\u3068\u3082\u8a00\u308f\u308c\u308b\u81f3\u6975\u5371\u967a\u306a\u30b3\u30de\u30f3\u30c9\u306a\u306e\u3067\u3001\u3054\u6ce8\u610f\u3092\u3002\u81ea\u5206\u3067\u3084\u3063\u3066\u307f\u3066\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4e2d\u8eab\u304c\u84b8\u767a\u3057\u305f\u3068\u6587\u53e5\u3092\u8a00\u308f\u308c\u3066\u3082\u8cac\u4efb\u3092\u6301\u3066\u307e\u305b\u3093\u3002)
\n\u30af\u30e9\u30b9\uff11\uff10\u306e\u30ab\u30fc\u30c9\u306a\u306e\u3067\u4fdd\u8a3c\u6700\u4f4e\u901f\u5ea6\u304c10MB\/S\u3060\u304b\u3089\u3053\u3093\u306a\u3082\u306e\u304b\u3002\u3000\u4e0a\u8a18\u306e\u30b5\u30a4\u30c8\u306e\u7d50\u679c\u3068\u6bd4\u8f03\u3057\u3066\u3082\u540c\u3058\u304f\u3089\u3044\u306e\u30b9\u30d4\u30fc\u30c9\u3060\u3002
\n\u30b5\u30a4\u30c8\u306e\u60c5\u5831\u3092\u773a\u3081\u3066\u3044\u308b\u3068\u3001SD\u30ab\u30fc\u30c9\u304c\u7834\u640d\u3059\u308b\u3001\u3068\u3044\u3046\u5831\u544a\u304c\u591a\u6570\u898b\u3089\u308c\u308b\u306e\u306f\u3001SD\u30ab\u30fc\u30c9\u306e\u30e1\u30e2\u30ea\u30fc\u69cb\u9020\u304c\u6fc0\u3057\u3044\u66f8\u304d\u63db\u3048\u3067\u6469\u8017\u3057\u3066\u3057\u307e\u3046\u7d50\u679c\u3060\u304b\u3089\u3001\u4e00\u5ea6SD\u30ab\u30fc\u30c9\u304b\u3089\u30d6\u30fc\u30c8\u3057\u305f\u3089\u3001OS\u306fUSB\u30b9\u30c6\u30a3\u30c3\u30af\u306e\u30e1\u30e2\u30ea\u30fc\u4e0a\u3067\u52d5\u4f5c\u3057\u305f\u307b\u3046\u304c\u3088\u3044\u3001\u3068\u3044\u3046\u3088\u3046\u306b\u66f8\u3044\u3066\u3042\u308b\u30d6\u30ed\u30b0\u304c\u7d50\u69cb\u3042\u308b\u3002\u3000SD\u30ab\u30fc\u30c9\u3067\u30c0\u30e1\u306a\u3089USB\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u30ab\u30fc\u30c9\u3060\u3063\u3066\u540c\u3058\u3060\u308d\u3046\u3068\u601d\u3046\u306e\u3060\u304c\u771f\u507d\u306e\u307b\u3069\u306f\u5206\u304b\u3089\u306a\u3044\u3002\u4e0a\u306e\u30b5\u30a4\u30c8\u3067\u3082USB\u306e\u30b5\u30e0\u30c9\u30e9\u30a4\u30d6\u3067\u52d5\u4f5c\u3055\u305b\u305f\u5834\u5408\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3092\u6e2c\u3063\u3066\u3044\u308b\u304c\u3001SD\u30ab\u30fc\u30c9\u306e\u7d04\u534a\u5206\u4ee5\u4e0b\u306e\u30b9\u30d4\u30fc\u30c9\u3002\u6e2c\u3063\u305f\u30e1\u30e2\u30ea\u30fc\u30b9\u30c6\u30a3\u30c3\u30af\u304cSandisk 16GB Cruiser\u3001\u4e00\u90e8\u306e\u30b5\u30a4\u30c8\u3067\u8a00\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u30b9\u30d4\u30fc\u30c9\u304c\u6539\u5584\u3057\u305f\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u7d50\u679c\u306b\u306f\u306a\u3063\u3066\u3044\u306a\u3044\u3002\u3000\u4ed6\u306b\u3082\u500b\u4eba\u306e\u30d6\u30ed\u30b0\u3067\u3084\u306f\u308a\u30b9\u30d4\u30fc\u30c9\u306b\u6539\u5584\u306f\u306a\u3044\u3001\u3068\u3044\u3046\u5831\u544a\u304c\u3042\u308b\u4e00\u65b9\u3001\u3000\u65e9\u304f\u306a\u308a\u3001\u304b\u3064\u52d5\u4f5c\u304c\u5b89\u5b9a\u3057\u305f\u3001\u3068\u8a00\u3063\u3066\u3044\u308b\u30b5\u30a4\u30c8\u306b\u306f\u5177\u4f53\u7684\u306a\u6570\u5024\u304c\u51fa\u3066\u3044\u306a\u3044\u3002\u3000\u4e00\u65b9\u3001USB\u7d4c\u7531\u3067HDD\u306b\u63a5\u7d9a\u3057\u305f\u5834\u5408\u306f\u901f\u5ea6\u5411\u4e0a\u306e\u52b9\u679c\u304c\u5f97\u3089\u308c\u305d\u3046\u3060\u3002\u3002\u3000<\/p>\n
\u305f\u3060\u3001\u8208\u5473\u3092\u305d\u305d\u3089\u308c\u308b\u90e8\u5206\u304c\u3042\u3063\u3066\u3001\u305d\u308c\u306fOS\u306e\u30ab\u30fc\u30cd\u30eb\u306e\u7acb\u3061\u4e0a\u304c\u308a\u304b\u3089\u306e\u51e6\u7406\u306f\u3001USB\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3001SD\u30ab\u30fc\u30c9\u4e0a\u306b\u5fc5\u8981\u306a\u306e\u306f\/boot\u30d5\u30a9\u30eb\u30c0\u306b\u7f6e\u304b\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u307f\u3001\u3068\u8aac\u660e\u3055\u308c\u3066\u3044\u308b\u3068\u3053\u308d\u3067\u3001\u3064\u307e\u308a\u306fSD\u30ab\u30fc\u30c9\u306b\u5c55\u958b\u3055\u308c\u308b\uff12GB\u306e\u5b9f\u88c5\u30a4\u30e1\u30fc\u30b8\u306e\u3046\u3061\u3001\u672c\u5f53\u306bSD\u30ab\u30fc\u30c9\u5074\u306b\u304a\u3044\u3066\u7f6e\u304b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u90e8\u5206\u306fFAT\u306e\uff8a\uff9f\uff83\uff68\uff7c\uff6e\uff9d\u306e\u90e8\u5206\u306e\u307f\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3067\u8a00\u3046\u306820\u30e1\u30ac\u30d0\u30a4\u30c8\u306b\u3082\u6e80\u305f\u306a\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u5224\u3063\u305f\u3002\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\uff12GB\u306e\u30a4\u30e1\u30fc\u30b8\u306f\uff8a\uff9f\uff83\uff68\uff7c\uff6e\uff9d\u304c\u4e8c\u3064\u3042\u308a\u3001\u4e00\u3064\u306f\uff15\uff16\u30e1\u30ac\u30d0\u30a4\u30c8\u306eFAT\u3001\u3082\u3046\u3072\u3068\u3064\u306f\uff08\uff12GB\uff0d\uff15\uff16MB\u306e\uff09Linux\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u3000\u3053\u306e\u8d77\u52d5\u306e\u9014\u4e2d\u304b\u3089USB\u30c7\u30d0\u30a4\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5\u306e\u8aac\u660e\u306f\u3053\u306e\u30b5\u30a4\u30c8<\/a>\u306b\u8f09\u3063\u3066\u3044\u308b\u8a18\u4e8b\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u304c\u3001\u81ea\u5206\u306e\u5834\u5408\u3001\u30ad\u30fc\u30dc\u30fc\u30c9\u304c\u30c0\u30e1\u306b\u306a\u3063\u3066\u653e\u3063\u3066\u3042\u3063\u305fHPmini \u3068\u3044\u3046\u30cd\u30c3\u30c8\u30d6\u30c3\u30af\u306b16GB\u306eSSD\u304c\u5165\u3063\u3066\u3044\u305f\u306e\u3067\u3053\u308c\u3092\u53d6\u308a\u51fa\u3057\u3001\u6614notebook\u306e\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30b4\u30fc\u30b9\u30c6\u30a3\u30f3\u30b0\u3092\u3059\u308b\u305f\u3081\u306b\u8cb7\u3063\u3066\u3042\u3063\u305fUSB\u306eSATA\/PATA Enclosure \u306b\u5165\u308c\u8fbc\u3093\u3067\u3001Raspbian \u306e\u30a4\u30e1\u30fc\u30b8\u3092\u30b3\u30d4\u30fc\u3057\u3001gparted\u3092\u4f7f\u3063\u3066\u30d1\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u5206\u307e\u3067\u62e1\u5927\u3002\u3000SD\u30ab\u30fc\u30c9\u306e\u307b\u3046\u306f\u3001\u6614\u306e\u30ab\u30e1\u30e9\u304b\u306a\u306b\u304b\u306b\u4f7f\u3063\u3066\u3044\u305f\u3068\u601d\u308f\u308c\u308b\u6771\u829d\u306e256MB\u306eSD\u30ab\u30fc\u30c9\u3092\u666e\u901a\u306ePC\u3067\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3057\u305f\u306e\u3061\u306bSSD\u306eFATpatition \u306e\u90e8\u5206\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u3059\u3079\u3066\u30b3\u30d4\u30fc\u3057\u3001\u3000\u305d\u306e\u4e2d\u304b\u3089cmdline.txt \u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u3000\/dev\/blk0p2\u3068\u3044\u3046\u30d6\u30fc\u30c8\u30c7\u30d0\u30a4\u30b9\u6307\u793a\u3092\/dev\/sda2\u3068\u66f8\u304d\u63db\u3048 \u305d\u308c\u305e\u308cRPi\u306b\u63a5\u7d9a\u3057\u3066\u6e96\u5099\u5b8c\u4e86\u3002\u96fb\u6e90\u3092\u5165\u308c\u3066\u307f\u308c\u3070256MB\u306eSD\u30ab\u30fc\u30c9\u304b\u3089\u3000\u898b\u4e8b\u306b\u7acb\u3061\u4e0a\u304c\u3063\u305f\u3002<\/p>\n
\u3053\u306e\u72b6\u614b\u3067\u3001SSD\u306e\u8aad\u307f\u66f8\u304d\u901f\u5ea6\u3092\u8abf\u3079\u3066\u898b\u308c\u3070\u3001
\n16GB SSD salvaged from HP mini notebook (ca. 2009) connected through SATA-USB enclosure.<\/p>\n
\r\nroot@raspi1:~# time dd if=\/dev\/zero of=.\/ddfile bs=8k count=20000 && sync\r\n20000+0 records in\r\n20000+0 records out\r\n163840000 bytes (164 MB) copied, 3.83869 s, 42.7 MB\/s\r\n\r\nreal\t0m3.858s\r\nuser\t0m0.050s\r\nsys\t0m2.380s\r\n<\/pre>\n
\u3053\u306e42.7MB\/S \u3068\u3044\u3046\u306e\u306f\u3001\u4e0a\u8a18\u306e\u30b5\u30a4\u30c8\u3067\u5831\u544a\u3055\u308c\u3066\u3044\u308b\u3001HDD\u306e\u8aad\u307f\u66f8\u304d\u901f\u5ea6\u3068\u307b\u307c\u540c\u7a0b\u5ea6\u3002\u3000\u305d\u308c\u3067\u3082SDHC\u306e\u307b\u307c\uff13\u500d\u306e\u65e9\u3055\u304c\u3067\u3066\u3044\u308b\u3002\u3000SSD\u3082\u534a\u5c0e\u4f53\u30c9\u30e9\u30a4\u30d6\u3060\u304c\u3001\u3053\u3061\u3089\u306fHDD\u3088\u308a\u3082\u65e9\u3044\u3001\u3068\u3044\u3046\u5ba3\u4f1d\u6587\u53e5\u3067\u9ad8\u304f\u3066\u3082\u7686\u6587\u53e5\u3092\u8a00\u308f\u305a\u8cb7\u3063\u3066\u3044\u308b\u308f\u3051\u306a\u306e\u3067\u3001\u3082\u3063\u3068\u65e9\u304f\u3066\u3082\u3088\u3055\u305d\u3046\u306a\u3082\u306e\u3060\u304c\u3001290\u30c9\u30eb\u306e\u30cd\u30c3\u30c8\u30d6\u30c3\u30af\u306b\u4ed8\u5c5e\u3057\u3066\u304d\u305f\u3082\u306e\u306a\u306e\u3067\u3001\u9ad8\u6027\u80fd\u3092\u671f\u5f85\u3059\u308b\u306e\u304c\u7121\u7406\u304b\u3002\u3000\u305d\u3082\u305d\u3082USB2 \u306e\u516c\u79f0\u6700\u9ad8\u901f\u304c60MB\/S\u3067\u3001\u305d\u306e\u3046\u306110~15%\u306f\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3068\u3044\u3046\u3053\u3069\u306a\u306e\u3067\u300150MB\/S\u304f\u3089\u3044\u3067USB\u306e\u307b\u3046\u304c\u98fd\u548c\u3059\u308b\u304b\u3089\u3001\u305d\u3061\u3089\u306e\u5f71\u97ff\u304b\u3082\u3002\u3000\u3069\u3061\u3089\u306b\u3057\u3066\u3082\u6d88\u8cbb\u96fb\u529b\u306f\u4f4e\u3044\u306f\u305a\u3002<\/p>\n
\u3061\u306a\u307f\u306b256MB \u306eSD\u30ab\u30fc\u30c9\u306e\u307b\u3046\u306f\u3001\u3055\u3059\u304c\u306b\u53e4\u3044\u3060\u3051\u3042\u3063\u3066\u3001\u3000\u3054\u89a7\u306e\u3068\u304a\u308a\u3001\u305f\u3063\u305f\u306e2MB\/S\u3002\u3000\u3064\u307e\u308a\u30af\u30e9\u30b92\u306e\u30ab\u30fc\u30c9\u3067\u3001RPi\u306e\u8981\u6c42\u4ed5\u69d8\u3067\u3042\u308b\u30af\u30e9\u30b94\u3092\u3082\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u304c\u554f\u984c\u306a\u304f\u8d77\u52d5\u3059\u308b\u3002\u3053\u306e\u4f7f\u3044\u65b9\u3067\u306f\u66f8\u304d\u8fbc\u3080\u3053\u3068\u306f\u306a\u304f\u8aad\u307f\u8fbc\u307f\u5c02\u7528. \u3059\u3050\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304cUSB\u5074\u306estorage\u306b\u79fb\u308b\u306e\u3067\u3088\u3057\u3068\u3057\u3066\u304a\u304f\u3002
\n256BM SD card  from old digital camera<\/p>\n
\r\nroot@raspi1:\/boot# time dd if=\/dev\/zero of=.\/ddfile bs=8k count=20000 && sync\r\n20000+0 records in\uff10\r\n20000+0 records out\r\n163840000 bytes (164 MB) copied, 77.1608 s, 2.1 MB\/s\r\n\r\nreal\t1m17.178s\r\nuser\t0m0.030s\r\nsys\t0m2.620s\r\n<\/pre>\n
SD\u30ab\u30fc\u30c9\u306e\u7834\u640d\u306e\u539f\u56e0\u3060\u304c\u3001
\n1)\u96fb\u6e90\u306e\u30d1\u30ef\u30fc\u304c\u8db3\u308a\u306a\u3044\u3002\u5fc5\u8981\u3068\u3055\u308c\u308b700\u30df\u30ea\u30a2\u30f3\u30da\u30a2\u4ee5\u4e0a\u3092\u4f9b\u7d66\u3067\u304d\u306a\u3044\u96fb\u6e90\u3092\u4f7f\u3063\u3066\u3044\u3066\u3046\u307e\u304f\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002
\n2)SD\u30ab\u30fc\u30c9\u304c\u66f8\u304d\u8fbc\u307e\u308c\u3066\u3044\u308b\u6700\u4e2d\u306b\u30ab\u30fc\u30c9\u3092\u629c\u3044\u3066\u3057\u307e\u3046\u3002
\n\u306a\u3069\u304c\u3001\u4e3b\u539f\u56e0\u3067\u3042\u308a\u3001read\/write\u306e\u56de\u6570\u304c\u8a31\u5bb9\u56de\u6570\u3092\u4e0a\u56de\u3063\u3066\u3057\u307e\u3046\u306e\u3060\u3001\u3068\u3044\u3046\u8b70\u8ad6\u306f\u8aac\u5f97\u529b\u304c\u8584\u3044\u3001\u3068\u500b\u4eba\u7684\u306b\u306f\u611f\u3058\u3066\u3044\u308b\u3002\u3000\uff08\u4eca\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u554f\u984c\u304c\u8d77\u304d\u308c\u3070\u8003\u3048\u76f4\u3059\u304b\u3082\u3057\u308c\u306a\u3044\uff09
\n\uff08\u8ffd\u8a18\uff1a\u3069\u3046\u3082\u521d\u671f\u306e\u30d5\u30a1\u30fc\u30e0\u30a6\u30a8\u30a2\u306b\u3082\u554f\u984c\u304c\u3042\u3063\u305f\u3088\u3046\u3060\u3002firmware-update\u3001raspberry pi\u3067\u30b0\u30b0\u3063\u3066\u307f\u3066\u307b\u3057\u3044\u3002\uff09
\nRPi\u306b\u30d1\u30ef\u30fc\u30b9\u30a4\u30c3\u30c1\u304c\u3042\u308c\u3070\uff12\u306e\u554f\u984c\u306f\u9632\u3052\u308b\u306e\u3060\u304c\u3001\u30b3\u30b9\u30c8\u30ab\u30c3\u30c8\u306e\u89b3\u70b9\u304b\u3089\u30b9\u30a4\u30c3\u30c1\u306f\u3064\u3044\u3066\u3044\u306a\u3044\u3002American Pi\u3068\u3082\u63f6\u63c4\u3055\u308c\u308bbeaglebone black\uff08$45\uff09\u306b\u306f\u3057\u3063\u304b\u308a\u3064\u3044\u3066\u304a\u308a\u3001\u78ba\u5b9f\u306b\u30d1\u30ef\u30fc\u30c0\u30a6\u30f3\u3067\u304d\u308b\u306e\u306b\u6bd4\u3079\u308b\u3068\u898b\u52a3\u308a\u3059\u308b\u3002\u3000\u305f\u3060\u5358\u306b\u96fb\u6e90\u3092\u63a5\u7d9a\u3059\u308b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u307e\u305a\u306f\u30b7\u30b9\u30c6\u30e0\u3092\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3057\u3066\u306e\u3061\u306b\u96fb\u6e90\u3092\u843d\u3068\u3059\u5fc5\u8981\u304c\u3042\u308b\u306e\u3060\u304c\u3001\u3053\u308c\u3092\u5b9f\u73fe\u3055\u305b\u308b\u305f\u3081\u306eRPi\u7528\u306e\u30d1\u30ef\u30fc\u30b9\u30a4\u30c3\u30c1\u306f3rd Party\u304b\u3089\u3044\u304f\u3064\u304b\u767a\u58f2\u3055\u308c\u3066\u304a\u308a(1\uff09<\/a>(2)<\/a>\u3001\u3053\u308c\u3092\u8cb7\u3044\u6c42\u3081\u308c\u3070\u826f\u3044\u3060\u3051\u306e\u8a71\u3067\u306f\u3042\u308b\u3002
\n
\"Rpi<\/a>
Rpi , 256MB SD card and USB\/Sata I\/F with 16GB SDD. \u3000\uff18GBSD is now retired<\/p><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"
\u8868\u984c\u306e\u4ef6\u3002\u81ea\u5206\u306f\u306a\u3093\u3068\u306a\u304f\u3001SD\u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u306f\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3088\u308a\u3082\u65e9\u3044\u306e\u3060\u3001\u3068\u601d\u3063\u3066\u3044\u305f\u306e\u3060\u304c\u3001\u3053\u308c\u306f\u5b9f\u306f\u5927\u5909\u306a\u601d\u3044\u9055\u3044\u3060\u3063\u305f\u3002\u3000\u601d\u3044\u8fbc\u3093\u3067\u3044\u305f\u7406\u7531\u306f\u3001\u6a5f\u68b0\u90e8\u54c1\u306b\u8aad\u307f\u66f8\u304d\u3059\u308b\u3088\u308a\u3001\u534a\u5c0e\u4f53\u306e\u307b\u3046\u306b\u8aad\u307f\u66f8\u304d\u3059\u308b\u307b\u3046\u304c\u65e9\u3044\u306e\u3060\u308d\u3046\u3068\u5358\u7d14\u306b\u8003\u3048\u3066\u3044\u305f\u306e\u3060\u304c\u3001\u3069\u3046\u3082\u9055\u3046\u3089\u3057\u3044\u3002\u3000SD\u30ab\u30fc\u30c9\u306e\u69cb\u9020\u304c\u95a2\u4fc2\u3057\u3066\u3044\u308b\u3088\u3046\u3060\u304c\u3001\u540c\u3058\u30ab\u30fc\u30c9\u3067\u3082\u521d\u671f\u306eSD\u30ab\u30fc\u30c9\u3068\u73fe\u5728\u666e\u901a\u306b\u58f2\u3063\u3066\u3044\u308bSDHC\u3067\u3082\u3082\u3061\u308d\u3093\u5dee\u304c\u3042\u308b\u3002\u3000\u305d\u308c\u3067\u3082\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30b9\u30d4\u30fc\u30c9\u306b\u306f\u304b\u306a\u308f\u306a\u3044\u306e\u3060\u3001\u3068\u3044\u3046\u3002 \u3061\u306a\u307f\u306b\u3000Raspberry Pi\u3068linux \u306edd\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u306e\u901f\u5ea6\u3092\u7c21\u6613\u7684\u306b\u6e2c\u3063\u3066\u307f\u305f\u5831\u544a\u304c \u3053\u306e\u30b5\u30a4\u30c8\u306b\u8f09\u3063\u3066\u3044\u305f\u306e\u3067\u3001\u540c\u3058\u65b9\u6cd5\u3067\u3001\u4eca\u56de\u81ea\u5206\u306e\u30d1\u30a4\u306b\u4f7f\u3063\u305fTranscend \u306e8GB\u30ab\u30fc\u30c9\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3092\u6e2c\u3063\u3066\u307f\u305f\u3089\u300115.7MB\/S\u3068\u51fa\u305f. root@raspi1:\/home\/pi# time dd if=\/dev\/zero of=.\/ddfile bs=8k count=20000 && sync 20000+0 records in 20000+0 records out 163840000 bytes (164 MB) copied, 10.4644 s, 15.7 MB\/s real 0m10.657s user 0m0.080s sys 0m2.400s (\u3053\u3053\u3067\u4f7f\u3063\u3066\u3044\u308bdd\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306e\u4f7f\u3044\u65b9\u3092\u9593\u9055\u3048\u308b\u3068\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u4e2d\u8eab\u304c\u7dba\u9e97\u306b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u308a\u3001\u3053\u308f\u308c\u3066\u3057\u307e\u3063\u305f\u308a\u3059\u308b\u3001\u3068\u3044\u3046linux killer\u3068\u3082\u8a00\u308f\u308c\u308b\u81f3\u6975\u5371\u967a\u306a\u30b3\u30de\u30f3\u30c9\u306a\u306e\u3067\u3001\u3054\u6ce8\u610f\u3092\u3002\u81ea\u5206\u3067\u3084\u3063\u3066\u307f\u3066\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4e2d\u8eab\u304c\u84b8\u767a\u3057\u305f\u3068\u6587\u53e5\u3092\u8a00\u308f\u308c\u3066\u3082\u8cac\u4efb\u3092\u6301\u3066\u307e\u305b\u3093\u3002) \u30af\u30e9\u30b9\uff11\uff10\u306e\u30ab\u30fc\u30c9\u306a\u306e\u3067\u4fdd\u8a3c\u6700\u4f4e\u901f\u5ea6\u304c10MB\/S\u3060\u304b\u3089\u3053\u3093\u306a\u3082\u306e\u304b\u3002\u3000\u4e0a\u8a18\u306e\u30b5\u30a4\u30c8\u306e\u7d50\u679c\u3068\u6bd4\u8f03\u3057\u3066\u3082\u540c\u3058\u304f\u3089\u3044\u306e\u30b9\u30d4\u30fc\u30c9\u3060\u3002 \u30b5\u30a4\u30c8\u306e\u60c5\u5831\u3092\u773a\u3081\u3066\u3044\u308b\u3068\u3001SD\u30ab\u30fc\u30c9\u304c\u7834\u640d\u3059\u308b\u3001\u3068\u3044\u3046\u5831\u544a\u304c\u591a\u6570\u898b\u3089\u308c\u308b\u306e\u306f\u3001SD\u30ab\u30fc\u30c9\u306e\u30e1\u30e2\u30ea\u30fc\u69cb\u9020\u304c\u6fc0\u3057\u3044\u66f8\u304d\u63db\u3048\u3067\u6469\u8017\u3057\u3066\u3057\u307e\u3046\u7d50\u679c\u3060\u304b\u3089\u3001\u4e00\u5ea6SD\u30ab\u30fc\u30c9\u304b\u3089\u30d6\u30fc\u30c8\u3057\u305f\u3089\u3001OS\u306fUSB\u30b9\u30c6\u30a3\u30c3\u30af\u306e\u30e1\u30e2\u30ea\u30fc\u4e0a\u3067\u52d5\u4f5c\u3057\u305f\u307b\u3046\u304c\u3088\u3044\u3001\u3068\u3044\u3046\u3088\u3046\u306b\u66f8\u3044\u3066\u3042\u308b\u30d6\u30ed\u30b0\u304c\u7d50\u69cb\u3042\u308b\u3002\u3000SD\u30ab\u30fc\u30c9\u3067\u30c0\u30e1\u306a\u3089USB\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\u30ab\u30fc\u30c9\u3060\u3063\u3066\u540c\u3058\u3060\u308d\u3046\u3068\u601d\u3046\u306e\u3060\u304c\u771f\u507d\u306e\u307b\u3069\u306f\u5206\u304b\u3089\u306a\u3044\u3002\u4e0a\u306e\u30b5\u30a4\u30c8\u3067\u3082USB\u306e\u30b5\u30e0\u30c9\u30e9\u30a4\u30d6\u3067\u52d5\u4f5c\u3055\u305b\u305f\u5834\u5408\u306e\u30a2\u30af\u30bb\u30b9\u901f\u5ea6\u3092\u6e2c\u3063\u3066\u3044\u308b\u304c\u3001SD\u30ab\u30fc\u30c9\u306e\u7d04\u534a\u5206\u4ee5\u4e0b\u306e\u30b9\u30d4\u30fc\u30c9\u3002\u6e2c\u3063\u305f\u30e1\u30e2\u30ea\u30fc\u30b9\u30c6\u30a3\u30c3\u30af\u304cSandisk 16GB Cruiser\u3001\u4e00\u90e8\u306e\u30b5\u30a4\u30c8\u3067\u8a00\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u30b9\u30d4\u30fc\u30c9\u304c\u6539\u5584\u3057\u305f\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u7d50\u679c\u306b\u306f\u306a\u3063\u3066\u3044\u306a\u3044\u3002\u3000\u4ed6\u306b\u3082\u500b\u4eba\u306e\u30d6\u30ed\u30b0\u3067\u3084\u306f\u308a\u30b9\u30d4\u30fc\u30c9\u306b\u6539\u5584\u306f\u306a\u3044\u3001\u3068\u3044\u3046\u5831\u544a\u304c\u3042\u308b\u4e00\u65b9\u3001\u3000\u65e9\u304f\u306a\u308a\u3001\u304b\u3064\u52d5\u4f5c\u304c\u5b89\u5b9a\u3057\u305f\u3001\u3068\u8a00\u3063\u3066\u3044\u308b\u30b5\u30a4\u30c8\u306b\u306f\u5177\u4f53\u7684\u306a\u6570\u5024\u304c\u51fa\u3066\u3044\u306a\u3044\u3002\u3000\u4e00\u65b9\u3001USB\u7d4c\u7531\u3067HDD\u306b\u63a5\u7d9a\u3057\u305f\u5834\u5408\u306f\u901f\u5ea6\u5411\u4e0a\u306e\u52b9\u679c\u304c\u5f97\u3089\u308c\u305d\u3046\u3060\u3002\u3002\u3000 \u305f\u3060\u3001\u8208\u5473\u3092\u305d\u305d\u3089\u308c\u308b\u90e8\u5206\u304c\u3042\u3063\u3066\u3001\u305d\u308c\u306fOS\u306e\u30ab\u30fc\u30cd\u30eb\u306e\u7acb\u3061\u4e0a\u304c\u308a\u304b\u3089\u306e\u51e6\u7406\u306f\u3001USB\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3001SD\u30ab\u30fc\u30c9\u4e0a\u306b\u5fc5\u8981\u306a\u306e\u306f\/boot\u30d5\u30a9\u30eb\u30c0\u306b\u7f6e\u304b\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u307f\u3001\u3068\u8aac\u660e\u3055\u308c\u3066\u3044\u308b\u3068\u3053\u308d\u3067\u3001\u3064\u307e\u308a\u306fSD\u30ab\u30fc\u30c9\u306b\u5c55\u958b\u3055\u308c\u308b\uff12GB\u306e\u5b9f\u88c5\u30a4\u30e1\u30fc\u30b8\u306e\u3046\u3061\u3001\u672c\u5f53\u306bSD\u30ab\u30fc\u30c9\u5074\u306b\u304a\u3044\u3066\u7f6e\u304b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u90e8\u5206\u306fFAT\u306e\uff8a\uff9f\uff83\uff68\uff7c\uff6e\uff9d\u306e\u90e8\u5206\u306e\u307f\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3067\u8a00\u3046\u306820\u30e1\u30ac\u30d0\u30a4\u30c8\u306b\u3082\u6e80\u305f\u306a\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u5224\u3063\u305f\u3002\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\uff12GB\u306e\u30a4\u30e1\u30fc\u30b8\u306f\uff8a\uff9f\uff83\uff68\uff7c\uff6e\uff9d\u304c\u4e8c\u3064\u3042\u308a\u3001\u4e00\u3064\u306f\uff15\uff16\u30e1\u30ac\u30d0\u30a4\u30c8\u306eFAT\u3001\u3082\u3046\u3072\u3068\u3064\u306f\uff08\uff12GB\uff0d\uff15\uff16MB\u306e\uff09Linux\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u3000\u3053\u306e\u8d77\u52d5\u306e\u9014\u4e2d\u304b\u3089USB\u30c7\u30d0\u30a4\u30b9\u3092\u4f7f\u3046\u65b9\u6cd5\u306e\u8aac\u660e\u306f\u3053\u306e\u30b5\u30a4\u30c8\u306b\u8f09\u3063\u3066\u3044\u308b\u8a18\u4e8b\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u304c\u3001\u81ea\u5206\u306e\u5834\u5408\u3001\u30ad\u30fc\u30dc\u30fc\u30c9\u304c\u30c0\u30e1\u306b\u306a\u3063\u3066\u653e\u3063\u3066\u3042\u3063\u305fHPmini \u3068\u3044\u3046\u30cd\u30c3\u30c8\u30d6\u30c3\u30af\u306b16GB\u306eSSD\u304c\u5165\u3063\u3066\u3044\u305f\u306e\u3067\u3053\u308c\u3092\u53d6\u308a\u51fa\u3057\u3001\u6614notebook\u306e\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30b4\u30fc\u30b9\u30c6\u30a3\u30f3\u30b0\u3092\u3059\u308b\u305f\u3081\u306b\u8cb7\u3063\u3066\u3042\u3063\u305fUSB\u306eSATA\/PATA Enclosure \u306b\u5165\u308c\u8fbc\u3093\u3067\u3001Raspbian \u306e\u30a4\u30e1\u30fc\u30b8\u3092\u30b3\u30d4\u30fc\u3057\u3001gparted\u3092\u4f7f\u3063\u3066\u30d1\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u5206\u307e\u3067\u62e1\u5927\u3002\u3000SD\u30ab\u30fc\u30c9\u306e\u307b\u3046\u306f\u3001\u6614\u306e\u30ab\u30e1\u30e9\u304b\u306a\u306b\u304b\u306b\u4f7f\u3063\u3066\u3044\u305f\u3068\u601d\u308f\u308c\u308b\u6771\u829d\u306e256MB\u306eSD\u30ab\u30fc\u30c9\u3092\u666e\u901a\u306ePC\u3067\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3057\u305f\u306e\u3061\u306bSSD\u306eFATpatition \u306e\u90e8\u5206\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u3059\u3079\u3066\u30b3\u30d4\u30fc\u3057\u3001\u3000\u305d\u306e\u4e2d\u304b\u3089cmdline.txt \u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u3000\/dev\/blk0p2\u3068\u3044\u3046\u30d6\u30fc\u30c8\u30c7\u30d0\u30a4\u30b9\u6307\u793a\u3092\/dev\/sda2\u3068\u66f8\u304d\u63db\u3048 \u305d\u308c\u305e\u308cRPi\u306b\u63a5\u7d9a\u3057\u3066\u6e96\u5099\u5b8c\u4e86\u3002\u96fb\u6e90\u3092\u5165\u308c\u3066\u307f\u308c\u3070256MB\u306eSD\u30ab\u30fc\u30c9\u304b\u3089\u3000\u898b\u4e8b\u306b\u7acb\u3061\u4e0a\u304c\u3063\u305f\u3002 \u3053\u306e\u72b6\u614b\u3067\u3001SSD\u306e\u8aad\u307f\u66f8\u304d\u901f\u5ea6\u3092\u8abf\u3079\u3066\u898b\u308c\u3070\u3001 16GB SSD salvaged from HP mini notebook (ca. 2009) connected through SATA-USB enclosure. root@raspi1:~# time dd if=\/dev\/zero of=.\/ddfile bs=8k count=20000 && sync 20000+0 records in 20000+0 records out 163840000 bytes (164 MB) copied, 3.83869 s, 42.7 MB\/s real 0m3.858s user 0m0.050s sys 0m2.380s \u3053\u306e42.7MB\/S 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\u306e\u516c\u79f0\u6700\u9ad8\u901f\u304c60MB\/S\u3067\u3001\u305d\u306e\u3046\u306110~15%\u306f\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3068\u3044\u3046\u3053\u3069\u306a\u306e\u3067\u300150MB\/S\u304f\u3089\u3044\u3067USB\u306e\u307b\u3046\u304c\u98fd\u548c\u3059\u308b\u304b\u3089\u3001\u305d\u3061\u3089\u306e\u5f71\u97ff\u304b\u3082\u3002\u3000\u3069\u3061\u3089\u306b\u3057\u3066\u3082\u6d88\u8cbb\u96fb\u529b\u306f\u4f4e\u3044\u306f\u305a\u3002 \u3061\u306a\u307f\u306b256MB \u306eSD\u30ab\u30fc\u30c9\u306e\u307b\u3046\u306f\u3001\u3055\u3059\u304c\u306b\u53e4\u3044\u3060\u3051\u3042\u3063\u3066\u3001\u3000\u3054\u89a7\u306e\u3068\u304a\u308a\u3001\u305f\u3063\u305f\u306e2MB\/S\u3002\u3000\u3064\u307e\u308a\u30af\u30e9\u30b92\u306e\u30ab\u30fc\u30c9\u3067\u3001RPi\u306e\u8981\u6c42\u4ed5\u69d8\u3067\u3042\u308b\u30af\u30e9\u30b94\u3092\u3082\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u304c\u554f\u984c\u306a\u304f\u8d77\u52d5\u3059\u308b\u3002\u3053\u306e\u4f7f\u3044\u65b9\u3067\u306f\u66f8\u304d\u8fbc\u3080\u3053\u3068\u306f\u306a\u304f\u8aad\u307f\u8fbc\u307f\u5c02\u7528. \u3059\u3050\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304cUSB\u5074\u306estorage\u306b\u79fb\u308b\u306e\u3067\u3088\u3057\u3068\u3057\u3066\u304a\u304f\u3002 256BM SD card from old digital camera root@raspi1:\/boot# time dd … Continue reading 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