Artesyn ATCA-F125 Installation and Use Guide (April 2014) - Manual (Page 103)

U-Boot
ATCA-F125 (6873M Artwork) Installation and Use (6806800J94J) 103
2. Specify the names of the Linux kernel image and the NFS root directory.
setenv bootfile
setenv rootpath
setenv blobfile
3. Configure U-Boot to use NFS boot.
setenv bootcmd $nfsboot
4. Depending on your network configuration, you may have to specify a gateway IP address
and a netmask. Use the following commands:
setenv gatewayip
setenv netmask
5. Enter saveenv, and then enter boot.
5.3.2 Configuring U-Boot to Boot from RAM Disk
If the Linux kernel and root file system are available as RAM disk image, you may want to boot
from that RAM disk.
This procedure assumes that the U-Boot command ramboothas been defined and that the
RAM disk image is stored on an external TFTP server that is connected to the ATCA-F125.
During each boot process, the image is downloaded from the TFTP server into the main
memory of the blade. The external TFTP server must be connected using the ATCA-F125 face
plate connector "BBP ETH", which is the Ethernet management interface. Any other interfaces,
such as the base or fabric interfaces, are not yet functional at this stage of the boot phase, as
the corresponding drivers are not initialized yet.
1. Specify the IP address of the ATCA-F125 and the TFTP server that contains the RAM disk:
setenv ipaddr
setenv serverip
2. Depending on your network configuration, you may have to specify a gateway IP address
and a netmask. Use the following commands:
setenv gatewayip
setenv netmask
3. Specify the name of the RAM disk image file:
setenv ramdiskfile
setenv blobfile
4. Configure U-Boot to boot from RAM disk: