How to Check Solaris Kernel bit (32 bit/64 bit)
To check if Solaris kernel is running in 32 bit mode or 64 bit from command line run the following:
# /usr/bin/isainfo –kv
64-bit sparcv9 kernel modules
The output “64 bit sparcv9” indicates that Solaris kernel is running in 64 bit mode. Here is the output of Solaris kernel running in 32 bit:
# /usr/bin/isainfo –kv
32-bit sparcv9 kernel modules
4>How to check Solaris kernel on x86 (Intel) platform :
# uname –m
i86pc
# /usr/bin/isainfo -kv
32-bit i386 kernel modules
In the example above Solaris Kernel is running in 32 bit on intel platform, printed as “32-bit” in the output.
4>How to check if Solaris kernel is configured to boot in 32 bit or 64:
The system is configured to boot the 64-bit kernel if the output from the eeprom command is either:
# /usr/sbin/eeprom | grep boot-file
boot-file: data not available
or
boot-file=kernel/sparcv9/unix
else if Solaris system is configured to boot using 32-bit kernel, the output from the eeprom command comes back as:
kernel/unix