mini2440无法挂fs_mini_mdev.yaffs2？

Empty flash at 0x00889550 ends at 0x00889b80
Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes
empty_blocks 1954, bad_blocks 6, c->nr_blocks 2029
VFS: Cannot open root device "mtdblock3" or unknown-block(31,3)
Please append a correct "root=" boot option; here are the available partitions:
1f00        256 mtdblock0 (driver?)
1f01        128 mtdblock1 (driver?)
1f02       2048 mtdblock2 (driver?)
1f03     259712 mtdblock3 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)
 

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