And I did a quick check on drivers..I think 1.2 doesn't have the drivers needed for 280x cards, so I have to download them...but no good without ethernet...
I have working R280x with BAMT 1.2. Drivers installed in 1.2:
amd-catalyst-13.11-beta-v9.4-linux-x86.x86_64.run.zip
ADL_SDK_6.0.zip
AMD-APP-SDK-v2.9-lnx32.tgz
there is no BAMT 1.2
There is BAMT 1.2