User`s manual

High Performance Low Cost Embedded Systems
5.5.3 Booting System via NFS
After setting up and running the NFS service, the user can set the NFS as the root file system to
boot the board. To boot the system via NFS, the board can fully utilize a “big” hard disk because the
user can use the host PC’s hard disk, this trick is widely used in Linux development.
Switch the target board’s boot mode to the “Nand Flash” side, connect the power cable, serial
port cable and the network cable, and open a super terminal. Right after the user powers on or resets
the board, press the space key in the host PC’s keyboard, the system will be directed to the vivi
shell, type the following command:
Supervivi>param set linux_cmd_line "console=ttySAC0 root=/dev/nfs
nfsroot=192.168.1.111:/opt/FriendlyARM/mini2440/root_qtopia
ip=192.168.1.70:192.168.1.111:192.168.1.111:255.255.255.0:MINI2440.arm9.net:eth0:off"
“param set linux_cmd_line” sets the linux startup parameters.
“nfsroot” is the board’s IP.
The number strings after “ip=” are detailed as below:
The first item, in this example “192.168.1.70” is the target’s temporary IP (please make sure this
IP doesn’t conflict with other IPs within the same network);
The second item, in this example “192.168.1.111” is the host’s IP,
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