NFS Mount Debug File system

NFS Mounted File system debugging instructions

For some reason, the file system partition is hung up, causing system startup exceptions, and attempting to debug using NFS Mount mode, which is documented in the NFS server support kernel environment variable settings that support NFS mount boot Issues that occur handle 1.NFS server Support

Need to provide a server that supports NFS services, put file system files that need to be mounted in NFS directory 2.kernel support for NFS Mount

The Kernel supports NFS partitions (that is, the [*] Root File system on NFS is selected at compile time in file system),

As well as supporting kernel IP_PNP (that is, the compile-time selection in networking [*] Ip:kernel level autoconfiguration)
    file systems  ---> 
        network file Systems  ---> 
            <*> NFS file system Support                        # * Required
                [*]   provide NFSV3 client support             #
            # Optional [*] Root file system on NFS                        # #
    networking  ---> 
        [*] Networking support 
            networking options  ---> 
                [*]   Ip:kernel level Autoconfiguration       # # # must be selected

3. The environment variable setting of the boot

/sbin/init execution failure occurs, you can query file execution permissions, BusyBox, and so on