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windows filesystem問題請教 RRS feed

  • 問題

  • 第一次在這請教問題,在麻煩大家多多幫忙

    底下所列出數值是我在SD card上所read到最原始的low data,不過因為SD card第一個sector開始的值為0xE9 0xFD 0xFF因此導致在判斷第一個sector為MBR或BOOT sector這部分發生錯誤,而真正的MBR應該出現在第三個sector,在windows File System的公規spec內並沒有提到有此現象,所以請了解此情況的高手,幫小弟解答或是那邊能看到關於這部分的information

     

    ps:本身在做手機的,而手機上的File System以follow windows,不過這張SD card在windows系統能正常工作,不過我因為不知道windows是如何判斷此情況

     

     

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    2008年2月14日 上午 08:47

所有回覆

  • nicehope 先生您好

    我也碰到和你一樣的問題. 請問您後來有解掉嗎? 是怎麼解的? 能否分享一下. 謝謝.

    brandon

     

    2008年7月21日 上午 08:11
  • 我好像也碰到類似問題. 我是在Linux 作low level format.(mkfs.vfat ?) 因為file systems 有好多種. 有興趣的人請再指點迷津

    2008年10月16日 上午 04:47
  • 您讀到的前面二個 sector 是 partition table, 第一個是 FILESYSTEM_PARTITIONTABLE_EXTENDED([0x1C2]=0x05), 第二個是FILESYSTEM_PARTITIONTABLE_FAT16([0x1C2]=0x04), 以 memory card 來說, 有的會有 PartitionTable, 有的就直接是 boot sector. 您可以上網找找看 partition table 的資料及欄位說明, 並據此算出 boot sector 在哪一個位置.

    2008年10月24日 上午 04:49