[REQ]Irix 4.0.5

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QuiescentWonder
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[REQ]Irix 4.0.5

Post by QuiescentWonder »

I started looking for this years ago but gave up. I noticed that someone else requested a version of Irix which made me remember. I would be very grateful if someone could give/find/show me where to get a copy of this software.
Last edited by QuiescentWonder on Sat Jun 14, 2008 4:17 am, edited 1 time in total.

kjaer
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Post by kjaer »

What machine do you intend to run it on? 4.0.5 was not a "unified release"; you need the correct release to support your particular harware.

QuiescentWonder
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Post by QuiescentWonder »

kjaer wrote:What machine do you intend to run it on? 4.0.5 was not a "unified release"; you need the correct release to support your particular harware.
I didn't know that, I was planning on finding hardware later. This is just a personal interest of mine. I've never used IRIX before, just wanted to check it out. Could you suggest some hardware, preferably on the cheaper end? I'm sure I'll be able to find it around somewhere.

milatchi
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Post by milatchi »

I suggest you try and get an Octane. They're fairly fast, easier to find RAM for than an O², and can run IRIX 6.4 - 6.5.30. If you had IRIX 4.x you would first have to find an IRIS to run it. Such a device would either be in pristine condition and expensive, or in horrible condition with you most likely spending months cleaning searching and buying parts to restore it to usable condition.

Example: Initially, I had to buy 4 broken IRIS Indigos to get two working ones pieced together.
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QuiescentWonder
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Post by QuiescentWonder »

Does anyone know of an emulator I could try it out on before I buy the hardware? I found IRIX 4.0.4b and I'm planning on looking for 6.5.30 as well. The release of 4.0.4b says that it will run on IP4, IP5, IP6, IP12 and IP17.

I found some MIPS emulators but none of them specifically mention IRIX, I haven't tried any yet.

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Post by kjaer »

You need more than a MIPS emulator. There were several models of UNIX workstation in the mid-90s which used MIPS processors, including several models from NEC (used as the initial target for Windows NT for MIPS, for example), the MIPS Magnum, and DECstation. These are all much more "generic" hardware than an SGI, and are the most likely targets for a MIPS emulator. IRIX isn't going to run on any of them.

IP4, IP5, IP6, IP12, and IP17 are going to be 4D/50, 4D/60, 4D/70, 4D/1x0, 4D/20, 4D/25, 4D/30, 4D/35, Indigo R3000, and Crimson R4000.

You're going to have a hard time finding a 4D/50, 4D/60, 4D/70, or 4D/1x0, much less keeping it going if you do find one. If you manage it, that'll be great, but I wouldn't hold your breath if I were you. The 4D/35 is easier to find, but less reliable even when it was new. Your best bets will be with any of the slower Personal IRISes (4D/20, 4D/25, or 4D/30), or Indigo R3000.

You may have trouble booting a Personal IRIS from CD-ROM, too, depending on particulars. Just something else to keep in mind.

AJ Corda's "This Old SGI" FAQ will be a lot of help if you're still serious about pursuing this.

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