Installing A/UX 1.1 like it's the 90s

A forgotten Apple system rises again, and the comments are pure retro chaos

TLDR: Someone successfully revived Apple’s obscure old Unix system in an emulator after wrestling with ancient disks, strange setup steps, and a sneaky keyboard bug. In the comments, people turned it into a retro feelings fest: veterans reminisced, gamers asked if *Nethack* would run, and others relived failed attempts from decades ago.

A vintage Apple operating system from the late 1980s just got dragged back into the spotlight, and honestly, the real show is in the replies. The post walks through the painstaking resurrection of A/UX, Apple’s old Unix-based system, on a Macintosh emulator called Snow. In plain English: this is someone getting a long-lost, extremely fussy old Apple setup to actually boot and behave, using 34 floppy disks, archived manuals, and a lot of stubbornness. The crowd’s reaction? A glorious mix of nostalgia, envy, and "I suffered so you can post this."

One commenter practically turned the thread into a memoir, saying A/UX has a “special place” in their heart because they once used it to run a bulletin board, early web server, and other proto-internet services. That gave the whole thing a warm, wistful vibe: less “old software demo,” more digital time capsule. Another person immediately went full nerd chaos and wondered whether Nethack could run on it, which is exactly the kind of deeply specific question that makes retro computing threads feel like a family reunion with soldering irons.

And then there’s the heartbreak. One commenter recalled buying an old Macintosh in 1999, determined to run A/UX, only to fail before even getting the installer to boot. That pain hit home for plenty of readers, because the article makes it very clear this setup was never easy. Between weird hardware demands, strange install steps, and a bug that made modifier keys act haunted, the comments basically crowned this project a miracle. The mood is half celebration, half group therapy, with a side of “Apple has always been like this, actually.”

Key Points

  • The author got A/UX 1.1 to boot and run stably in the Snow vintage Macintosh emulator.
  • A newly archived A/UX 1.1 media set from Dominic Sharp consisted of 34 800K GCR floppy images converted from raw flux data using Applesauce.
  • A/UX required Macintosh hardware with an MMU and FPU, limiting support to higher-end 68k systems such as the Macintosh II series and later Quadra models.
  • To support A/UX 1.x installation, the author added emulation for the Macintosh II video card, known as Toby, based on compatibility information from A/UX Penelope.
  • The installation process required partitioning the disk, installing System 6 first, using SASH to launch the A/UX kernel, and fixing an ADB Talk 2 keyboard bug in Snow.

Hottest takes

"there will always be a special place in my heart for a/ux" — latchkey
"I wonder if Nethack 3.4.3 or Slashem 0.8 could build" — anthk
"hell bent on running A/UX on it. Never even got an installer disk image to boot" — baron3dl
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