sd卡 不识别分区

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

# 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. 
   
5. Disk /dev/mtdblock0 doesn't contain a valid partition table
   
6. 
   
7. Disk /dev/mtdblock1: 3 MB, 3145728 bytes
   
8. 255 heads, 63 sectors/track, 0 cylinders
   
9. Units = cylinders of 16065 * 512 = 8225280 bytes
   
10. 
    
11. Disk /dev/mtdblock1 doesn't contain a valid partition table
    
12. 
    
13. Disk /dev/mtdblock2: 263 MB, 263192576 bytes
    
14. 255 heads, 63 sectors/track, 31 cylinders
    
15. Units = cylinders of 16065 * 512 = 8225280 bytes
    
16. 
    
17. Disk /dev/mtdblock2 doesn't contain a valid partition table
    
18. 
    
19. Disk /dev/mmcblk0: 7958 MB, 7958691840 bytes
    
20. 255 heads, 56 sectors/track, 1088 cylinders
    
21. Units = cylinders of 14280 * 512 = 7311360 bytes
    
22. 
    
23.         Device Boot      Start         End      Blocks  Id System
    
24. /dev/mmcblk0p1   *           1        1088     7766400   b Win95 FAT32
    

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