Hello Raj,

I am on a Solaris on a AMD-
uname -agives

Code:

OS Solaris 10 x86_64 (SunOS goldtpus34 5.10 Generic_144489-11

I wanted to find whether it has a 32bit or 64 bit kernel so I did

Code:

/usr/bin/isainfo -k

It says

Code:

amd64

but when I do

Code:

file /sbin/init

It says

Code:

ELF 32-bit LSB executable 80386 Version 1, dynamically linked, stripped

The majority of binaries in a 64-bit installation of Solaris are 32-bit binaries. There is a historic reason for this related to the differences between SPARC chips and x86 chips. This is different than the approach taken with Linux. So even if the kernel is booted in 64-bit mode, you will see that init is a 32-bit binary. The isainfo command is specifically designed to show which kinds of programs the kernel can run.

Thanks,
R. Singh