Upgrading U-Boot via TFTP

First of all, copy the file uboot.bin to your TFTP server. Then start your SheevaPlug, connect the serial console and type the following commands:

version
setenv serverip 192.168.3.33 # IP of your TFTP server
setenv ipaddr 192.168.3.32
bubt uboot.bin

The upgrade process will ask whether you want to change the environment:

**Warning**
If U-Boot Endiannes is going to change (LE->BE or BE->LE),
Then Env parameters should be overridden..
Override Env parameters? (y/n) n

Make sure to answer "n" here. Then reset:

reset

And then check the version again:

version