Introduction
Currently the newest version of IRIX is 6.5.18 which supports
most modern SGI computers is of course the best choice in many
cases. But there are two cases where you might consider using
older versions of IRIX: You have an old SGI that isn't supported
by IRIX 6.5 any more or you have a supported SGI which is too
slow or has less than 128MB of memory. This page tries to explain,
which version of IRIX fits best to your needs.
The IRIX Versions
IRIX 4.0
Subversions
IRIX 5.3
Subversions
IRIX 6.2
Subversions
IRIX 6.3
Subversions
IRIX 6.4
Subversions
IRIX 6.5
This is the newest stream and runs on most SGI hardware. Supported
are all current hardware, all legacy systems with R4000 CPU or
better except Crimson.
Recommendations
Personally I would recommend the following versions for these
machines:
| Machine |
Recommended IRIX Version |
| Personal Iris |
IRIX 4.0.x |
| Indigo R3000 |
IRIX 4.0.x or
IRIX 5.3 for machines with at least 32MB |
| Indigo R4000 |
IRIX 5.3 |
| Indy |
IRIX 5.3 for machines with less than 128MB
IRIX 6.5 for machines with at least 128MB |
| Indigo² |
IRIX 6.5 (should have 128MB) |
| Octane |
IRIX 6.5 |
| O2 |
IRIX 6.5 (should have 128MB) |
You might also try to install IRIX 6.5 on supported machines
with less than 128MB of RAM, but you might want to downgrade to
IRIX 5.3 for better performance.
|
