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[已解决] sd卡 不识别分区

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armv210 发表于 2015-1-7 22:16:13 | 显示全部楼层 |阅读模式
本帖最后由 armv210 于 2015-1-7 22:46 编辑

自己尝试移植linux-2.6.39,设备已经识别出来,但是却无法识别分区。SD卡是8G卡,分区是fat32
  1. mmc0: mmc_rescan_try_freq: trying to init card at 300000 Hz
  2. mmc0: mmc_rescan_try_freq: trying to init card at 200000 Hz
  3. mmc0: mmc_rescan_try_freq: trying to init card at 100000 Hz
  4. mmc1: mmc_rescan_try_freq: trying to init card at 400000 Hz
  5. mmc1: new high speed SDHC card at address 0001
  6. mmcblk0: mmc1:0001 00000 7.41 GiB (ro)
  7. mmcblk0: detected capacity change from 0 to 7958691840
  8. mmcblk0: unknown partition table
  9. mmc0: mmc_rescan_try_freq: trying to init card at 400000 Hz
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有谁知道什么原因吗?是缺少什么模块吗?

多谢
 楼主| armv210 发表于 2015-1-7 22:17:40 | 显示全部楼层
# fdisk -l 的输出
  1. Disk /dev/mtdblock0: 0 MB, 262144 bytes
  2. 255 heads, 63 sectors/track, 0 cylinders
  3. Units = cylinders of 16065 * 512 = 8225280 bytes

  4. Disk /dev/mtdblock0 doesn't contain a valid partition table

  5. Disk /dev/mtdblock1: 3 MB, 3145728 bytes
  6. 255 heads, 63 sectors/track, 0 cylinders
  7. Units = cylinders of 16065 * 512 = 8225280 bytes

  8. Disk /dev/mtdblock1 doesn't contain a valid partition table

  9. Disk /dev/mtdblock2: 263 MB, 263192576 bytes
  10. 255 heads, 63 sectors/track, 31 cylinders
  11. Units = cylinders of 16065 * 512 = 8225280 bytes

  12. Disk /dev/mtdblock2 doesn't contain a valid partition table

  13. Disk /dev/mmcblk0: 7958 MB, 7958691840 bytes
  14. 255 heads, 56 sectors/track, 1088 cylinders
  15. Units = cylinders of 14280 * 512 = 7311360 bytes

  16.         Device Boot      Start         End      Blocks  Id System
  17. /dev/mmcblk0p1   *           1        1088     7766400   b Win95 FAT32
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