isainfo can be used to obtain that information whther the machine is 32 bit or 64 bit.
$ isainfo -kv
64% isainfo -kv
64-bit sparcv9 kernel modules
32% isainfo -kv
32-bit sparc kernel modules
( Solaris 2.6 and earlier releases are always 32 bit and lack the "isainfo" command. )
* A 32 bit kernel is only supported on "Sun4C, Sun4M, Sun4D and even Sun4U hardware using UltraSPARC I, II or IIi processors.
Sun hardware released after Solaris 8 no longer supports 32 bit booting; you can only run 64 bit kernels on those. This applies to all Ultra-III systems as well as the Sun Blade 100 and other UltraSPARC-IIe systems.
SunOS 5.6 has support for large files but 5.7 is indeed where full 64 bit support starts.
According to Posix standards, with which Sun claims compliance, you run "uname -s" to get to get the name of the OS and you run "uname -r" to get the release.
As near as I can figure, it goes like this: In the beginning there was SunOS and it was based on BSD. But SunOS 5.0 was a major rewrite and at this point SunOS was now based on System VR4. Apparently some marketing droid came along and christened the result "Solaris 2.0". But the kernel programmers ignored him and continue to call the OS "SunOS 5.0".
The kernel programmers continue to use their naming convention and named various releases stuff like "SunOS 5.6" which the marketing droid called "Solaris 2.6".
But with SunOS 5.7, the marketing droid decided to call the OS "Solaris 7". I'm betting that he switches to Roman numerals pretty soon.
So it looks to me like Sun is unable to reach a unified conclusion as to what to call their OS. I wish they would hold a hot dog eating contest or something to settle this. In the meantime you have two choices.
I bought a dell laptop (XPS M1330) online which came without a hard drive. There is a Windows Vista Ultimate OEMAct sticker with product key at the bottom case. I checked dell website (here) for this model and it says this model supports both 32 and 64-bit version of Windows... (4 Replies)
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I'm looking to cover a corner case for an upcoming test cycle. Is there a way to boot a RedHat Advanced Server 4 (update 3) installed on a Power PC machine to use a 32 bit kernel? This would be similar to what is done here -> https://www.unix.com/aix/26204-aix-platform.html
I've done... (0 Replies)