Artesyn ATCA-8310 Installation and Use (May 2014) - Manual (Page 185)

U-Boot
ATCA-8310 Installation and Use (6806800M72E) 185
reset
6.2.1.9 Default Boot Sequences
6.2.1.9.1 Disk
This is the default boot operation. The boot command is:
runscript usb1:*:*,usb0:*:* recover.ui,autoexec.ui 0
This script will first look for the file "recover.ui" on all USB storage devices. If not found it looks
for "autoexec.ui". The intention is that "recover.ui" would be placed on an USB stick at the
frontpanel for booting a recovery image.
The command will run endlessly.
6.2.1.9.2 NFS
Load the kernel $bootfile via NFS (not TFTP!) from the nfs server $serverip, path $rootpath, and
boots it using $serverip$rootpath as nfsroot, and $netdev as linux network device.
Netdev values are:
 eth0 for FM1@TGEC0
 eth1 for FM2@DTSEC0
 eth2 for FM2@DTSEC2
6.2.1.9.3 RAM Boot (via DHCP)
Boots the first file offered by the DHCP server as kernel image. If this succeeds, it tries to boot
the file $ramdiskfile via DHCP/TFTP to $ramdiskaddr.
If both files were loaded the kernel is booted.
6.2.1.9.4 RAM Boot (No DHCP)
Loads $bootfile/$ramdiskfile from $serverip via TFTP, and executes the kernel.