Installing gentoo on a SPARC via tftpboot

[Consystor]

Hello!

I'm trying to install gentoo on a SPARC Enterprise T5120.
I've booted the 'gentoo-sparc64-20100128.tftpboot' which is proposed here.

But the kernel from this file doesn't recognize the eth-cards. So there are no eth-interfaces and no /dev/sdX devices.
I've looked inside the /lib/modules directory and found no modules. So how can I install gentoo without any modules, eth and sda? Or have I done something wrong?

Many thanks for your help!