[SunHELP] 64 bit

Greg sunhelp at sunhelp.org
Wed Jan 31 13:43:28 CST 2001


> in solaris 7, how do you turn off 64bit mode.

See the boot man page, it has all the details in the
"32-bit SPARC" section.

> i comment the line in /platform/sun4u/boot.conf
> file and reboot. it still comes up in 64bit mode.

That line is to _enable_ 64-bit support on the types
of machines described by the comments in that file.
It is not a generic enable/disable mechanism for
booting 64-bit.

> besides looking at dmesg after boot time, what else
> can i run to confirm if i'm running at 64bit or not.

isainfo -kv will tell you if you're running a 64-bit
kernel.

Out of curiosity, what's making you want to run a
32-bit kernel?

-greg




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