Restoring and Updating the EVM Hard Disk Drive
For example, you can create a terminal session with HyperTerminal or TeraTerm on MS Windows, and Minicom or
6)Start an NFS server on the host workstation. This document assumes the host path /home/user/workdir/filesys contains a file system that the target EVM can use for root mounting.
A.6.2 Configure EVM for NFS Root Mount
Follow these steps to configure your EVM for an NFS root mount:
1)Configure the Boot Switches (S3) to 1011111110. This is the bank of switches in the middle of the EVM.
2)Power on the EVM and hit any key to enter
3)Configure bootcmd as follows to boot the Linux kernel via flash.
EVM # setenv bootcmd bootm 0x2050000
Note: If you have flashed a new kernel to the NOR flash at an address other than 0x2050000, modify this command accordingly.
4)Configure bootargs as follows to root mount the file system from NFS:
EVM # setenv rootpath <root directory to mount>
EVM # setenv nfshost <ip address of nfs host>
EVM # setenv bootargs video=davincifb:vid0=720x576x16,
2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K
davinci_enc_mngr.ch0_output=COMPOSITE
davinci_enc_mngr.ch0_mode=$(videostd)
console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs
nfsroot=$(nfshost):$(rootpath),nolock mem=120M
The nfsroot option in this command uses the host workstation IP address. Make sure to replace the <host ip addr> with the actual address of your host Linux workstation.
5) Optional: Print the
EVM # printenv
6) Save the
EVM # saveenv
7) Boot EVM from NFS on the host Linux workstation
EVM # boot
8) Log into MontaVista Linux as "root".
Additional Procedures |
