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Looking for AOS / BSD4.3 for IBM RT


Veteran Member
Feb 16, 2012
New Zealand
I'd like to pull out my IBM RT sometime soon and give it the once over.
Rather than reinstall AIX again and be limited to whatever IBM put on the disks, I was hoping to try AOS (a.k.a. IBM 4/3, based off BSD 4.3) but I can't find it.

I also read on the old newsgroups that people were working on porting NetBSD themselves, at it appears it was released and working at some point, but I can't find any of that either.

If anyone can point me in the right direction that'd be great.

Ultimately my goal here is to move to a slightly more flexible OS where I might possibly be able to compile a driver for alternative video, storage, or network options.
My biggest issue is that my Baseband adapter is faulty, I can't find a replacement, and I don't have any other network drivers for AIX and the VRM to use anything else.

Machine is a Model 135 RT, 16MB RAM, 380MB x 2 EESDI.