I was following the guide here http://blog.qnology.com/2014/07/hacking-pogoplug-v4-series-4-and-mobile.html and was going well until I ran into this part.
$this->bbcode_second_pass_code('', '#SET MACADDRESS
/tmp/fw_setenv ethaddr "$(cat /sys/class/net/eth0/address)"')
When I typed this in I was getting a error defined message and everything I typed after that I received the same error.
So what do I do? reboot it... and all H&ll breaks loose.

I can't get an IP address on the little black box

So I make a serial cable and putty my way in and the first thing I see is the no mac address set message when it tries to boot.
I go in, setenv ethaddr yadayadayada, I also set an IP address for it and I still can't talk to my little black box via IP/SSH
I went through several post on here trying different things and I'm sure I messed it up even more... I'm stuck
This is what it currently boots up to.
$this->bbcode_second_pass_code('', 'U-Boot 2014.07-tld-1 (Jul 18 2014 - 00:59:45)
Pogoplug V4
SoC: Kirkwood 88F6192_A1
DRAM: 128 MiB
WARNING: Caches not enabled
NAND: 128 MiB
MMC: kwsdio: 0
In: serial
Out: serial
Err: serial
Net: egiga0
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x100000, size 0x300000
3145728 bytes read: OK
Unknown command '$(bootargs_root)' - try 'help'
Wrong Image Format for bootm command
ERROR: can't get kernel image!
Pogov4>
')
If anyone can help that would be great. I would like to just start over and try again but I think i'm in too deep now.