Re: how to tell if my sun is 64 bit hardware

From: Doug McIntyre (merlyn_at_geeks.org)
Date: 02/25/05 

Date: 25 Feb 2005 16:15:13 GMT

Chris Jones <c.r.jonesNOSPAM@larc.nasa.gov> writes:
>Claus Dragon wrote:
>> Words to the wise, Chris Jones <c.r.jonesNOSPAM@larc.nasa.gov> wrote:
>>
>>>I thought I understood some of this by running the 'isainfo -v' command, but I don't trust what I think I know now... :)
>>>So could somebody tell me how I can take a sun box and tell if it's 64 or 32 bit hardware, and
>>>the same for 64 or 32 bit software.
>>>
>>>Thanks so much!
>>>
>>>-chris
>>
>>
>> If its an Ultra 1 and newer, its 64-bit.

>Ok... but what if I don't know if my system is ultra 1 or newer?
>There's got to be something system-wise that I can look at to answer
>this question. I need something I can give to a user so they can
>find out on their own... and they're not going to have a clue if the
>system is an ultra 1 or newer... :) Plus to be honest, I'm not sure I
>always know. :)

Doing a 'uname -i' and seeing if Ultra is in the name is a good
indication of what hardware they have (and also a good indication of
what generation they run). Anything Ultra is a 64-bit processor,
although Ultra-1 by default in Solaris 9 won't run 64-bit mode, you
have to enable the OS to boot 64-bit mode on that hardware.

The 'isainfo -v' tells you what the running OS is currently capable of
running, so it could be an Ultra-1, but only capable of running 32-bit
binaries.

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