Mine is "ROM Rev 3.0.1". Exact behavior with the boot.net from 5.1.5 pictured in attachment.Sorry for the poor quality, and I don't have a serial terminal (anymore) to get the text properly.6.1.5 behave the same way. The PC is 0x00000000 in the picture, it can be 0x00000004.Replacing the boot.net by the one from 2.1, the machine boots all the way (albeit slowly) to
multi-user in 5.1.5 and can install packages from pkgsrc :-)