Difference between revisions of "ULTRIX"

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{{Infobox OS  
 
{{Infobox OS  
| name = Ultrix
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| image = ultrix40.png
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| caption = Logging into an Ultrix 4.0 system
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| name = ULTRIX
 
| creator = [[Digital Equipment Corporation]]
 
| creator = [[Digital Equipment Corporation]]
 
| current version = 4.5 for VAX and DECStation (1995)
 
| current version = 4.5 for VAX and DECStation (1995)
| year introduced = 1984
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| year introduced = ULTRIX-11: 1982, ULTRIX-32: 1984
| type = Multitasking, multiuser UNIX
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| type = Multi-tasking, multi-user Unix
| architecture = [[PDP-11]], [[VAX]], [[DECStation]]
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| architecture = [[PDP-11]], [[VAX]], [[DECStation/DECsystem]] ([[RISC]])
 
}}
 
}}
  
Ultrix was [[DEC]]'s official UNIX for [[VAX]], [[PDP-11]] and [[DECStation]] equipment.
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'''ULTRIX''' was [[DEC]]'s official [[UNIX]] for [[VAX]], [[PDP-11]] and [[DECStation/DECsystem]] ([[RISC]]) equipment.
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==PDP-11==
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'''ULTRIX-11''' was available for the PDP-11 and can be obtained up to version 3.1 from the [[The Unix Heritage Society|TUHS]] archive (below). It will run under [[SIMH]] (and other PDP-11 emulators).
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==VAX==
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'''ULTRIX-32''' (later: ULTRIX/VAX) for the VAX was derived from [[4.2 BSD]] with some influences from SYSV and included support for specific DEC technologies. The latest version is 4.5 from 1995. Earlier versions of ULTRIX-32 are available from TUHS. It will run under the VAX simulator in SIMH.
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==DEC MIPS-based Computers==
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ULTRIX/RISC for [[DECstation]] and [[DECsystem]] computers is not available from TUHS.  The latest version is 4.5 from 1995.  This version will also run, (Including CDE + X11!) under [[GXemul]].
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==Y2K compatability==
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It's been confirmed that 4.0 is NOT y2k compatable...  Not many UNIX from the 1990's or prior are so it's really no surprise...
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==Running ULTRIX==
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SIMH will run Ultrix.  Many simulators -if not all- of supported VAX computers are known to work.
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Installation instructions for SIMH can be found at:
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* [[Installing Ultrix V1.1 on SIMH]]
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* [[Advanced Installation of Ultrix V2.0 on SIMH]]
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* [[Setting Up RIS on ULTRIX V2.0]]
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* [[Installing and Configuring an ULTRIX V3.0 DMS Server on a SIMH MicroVAX 3900]]
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* [[Installing Ultrix 4.0 on SIMH]]
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* [[Installing Ultrix 4.5 on SIMH]]
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==External links==
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* [https://www.tuhs.org/Archive/Distributions/DEC/ DEC] - various ULTRIX distros
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** [https://minnie.tuhs.org/cgi-bin/utree.pl?file=Ultrix-3.1 Ultrix-3.1] - PDP-11 version
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* [ftp://ifctfvax.harhan.org/pub/UNIX/thirdparty/Ultrix-32/sources/ Ultrix-32] - Sourcecode for Ultrix-32
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{{Nav Unix}}
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[[Category: PDP-11 Operating Systems]]
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[[Category: VAX Operating Systems]]
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[[Category: DEC Operating Systems]]
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[[Category: CSRG BSD]]
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[[Category: Unix-based OS's]]

Revision as of 20:43, 16 July 2022


ULTRIX
Ultrix40.png
Logging into an Ultrix 4.0 system
Type: Multi-tasking, multi-user Unix
Creator: Digital Equipment Corporation
Architecture: PDP-11, VAX, DECStation/DECsystem (RISC)
This Version: 4.5 for VAX and DECStation (1995)
Date Released: ULTRIX-11: 1982, ULTRIX-32: 1984


ULTRIX was DEC's official UNIX for VAX, PDP-11 and DECStation/DECsystem (RISC) equipment.

PDP-11

ULTRIX-11 was available for the PDP-11 and can be obtained up to version 3.1 from the TUHS archive (below). It will run under SIMH (and other PDP-11 emulators).

VAX

ULTRIX-32 (later: ULTRIX/VAX) for the VAX was derived from 4.2 BSD with some influences from SYSV and included support for specific DEC technologies. The latest version is 4.5 from 1995. Earlier versions of ULTRIX-32 are available from TUHS. It will run under the VAX simulator in SIMH.

DEC MIPS-based Computers

ULTRIX/RISC for DECstation and DECsystem computers is not available from TUHS. The latest version is 4.5 from 1995. This version will also run, (Including CDE + X11!) under GXemul.

Y2K compatability

It's been confirmed that 4.0 is NOT y2k compatable... Not many UNIX from the 1990's or prior are so it's really no surprise...

Running ULTRIX

SIMH will run Ultrix. Many simulators -if not all- of supported VAX computers are known to work.

Installation instructions for SIMH can be found at:

External links