tg3 module is included. What issue do you have?
I'm not able to find the diskstation with the synology assistant. i've setup the grup.conf with the vit, pid, mac ecc:
set vid=0x0...
set pid=0x0...
set sn=B3J4....
set mac1=38EAA7...
It's possible that the SN is the problem? I've the B3J4N01003 that i see is a default serial used also here http://xpenology.me/how-to-update-boot-loader/
UPDATE:
Actually i'm using xpenoboot to boot the DSM on a HP Proliant Microserver. Everything work fine with the DSM 5.2-5967.
I'm not able to boot with Jun's loader (baremetal), the boot up process is blocked on the black screen saying "Booting the kernel", with synology assistant i'm not able to find the server to start the migration.