Register * You must register for access to some support pages  FAQ Search   Support Main Menu  Entry #175: What mode is an HP system booted in (32-bit or 64-bit)? Question What mode is an HP system booted in (32-bit or 64-bit)? Answer To find out what mode an HP system is booted in, 32-bit or 64-bit, issue the following command from the root account: $getconf KERNEL_BITS This will return a string with either 32 or 64.