我对yaffs文件系统的启动过程不大了解，希望各位朋友能给讲解一下，尤其是编译完内核制作镜像的部分。
我使用的是友善下载的linux2.6.29,
我先是用nfs启动，然后挂载/dev/mtdblock2 到/mnt
然后将nfs上的所有文件考至/mnt
然后umount
重新起动并使用root=/dev/mtdblock2
显示如下信息，请问是怎么回事呀？
lib80211: common routines for IEEE802.11 drivers
s3c2410-rtc s3c2410-rtc: setting system clock to 2009-04-21 12:33:15 UTC (1240317195)
FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
uncorrectable error : <3>uncorrectable error : <3>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 1024 mtdblock0 (driver?)
1f01 2048 mtdblock1 (driver?)
1f02 62464 mtdblock2 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
