[SunHELP] How to run 64 Bits OS ?

[Greg]

> I've a Sun Ultra 1 running kernel with 32 bits.
> I'm installing a soft that require 64 bits OS installed.At boot I've =
> this message "64 bits OS is installed but 32 bits is default ".
> How can I activate 64 bits OS.

Read and understand /platform/sun4u/boot.conf then make the indicated
change.  If you allow untrusted users to execute arbitrary programs on that
machine you may not want to enable the 64-bit kernel as there exists the
potential of them hanging the machine if they decide to be malicious (or
just deviously playful).

-greg