移植linux时启动时的错误信息，怎么处理

NET: Registered protocol family 1
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "mtdblock2" or unknown-block(2,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

这是我移植linux后的启动信息，不能加载根文件，请问怎么修改，谢谢。

没有指定当然报错了~~~

找不到根文件系统吧

事情搞定了，因为没有选择MTD partitioning support这个选项，谢谢了