出现kernel panic

end_request: I/O error, dev mtdblock2, sector 0
FAT: unable to read boot sector
VFS: Cannot open root device "mtdblock2" or unknown-block(31,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00          261888 mtdblock0 (driver?)
1f01            3072 mtdblock1 (driver?)
1f02          257024 mtdblock2 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
Backtrace:
[<c0028fd4>] (dump_backtrace+0x0/0x10c) from [<c0255e14>] (dump_stack+0x18/0x1c)
r7:c38090db r6:c033a5c0 r5:c3809000 r4:c381df40
[<c0255dfc>] (dump_stack+0x0/0x1c) from [<c0255e64>] (panic+0x4c/0x124)
[<c0255e18>] (panic+0x0/0x124) from [<c0008e30>] (mount_block_root+0x178/0x234)
r3:00000000 r2:c3801dac r1:c381df40 r0:c02d3fe8
[<c0008cb8>] (mount_block_root+0x0/0x234) from [<c0008f9c>] (mount_root+0xb0/0xf4)
[<c0008eec>] (mount_root+0x0/0xf4) from [<c00090d8>] (prepare_namespace+0xf8/0x18c)
r7:c0339fa4 r6:c001e83c r5:c001e83c r4:c001e84c
[<c0008fe0>] (prepare_namespace+0x0/0x18c) from [<c0008478>] (kernel_init+0xc8/0xf4)
r7:00000000 r6:c001d250 r5:c001cf20 r4:c001d250
[<c00083b0>] (kernel_init+0x0/0xf4) from [<c0039f3c>] (do_exit+0x0/0x620)
r7:00000000 r6:00000000 r5:00000000 r4:00000000
本以为是文件系统出问题，结果换了天嵌的文件镜像还是这个问题，是我的内核在编译时候出问题了吗？我的bootloader是用的那个天嵌ADS下的那个快速引导的。

1# knightfy


烧写个天嵌的uboot吧...............

uboot和内核的nand分区不同

3# maylag 这两个分区一定要一样吗？

挂载的文件系统在nand中地址和uboot传递的参数中设置的地址要相同。