View Full Version : [ubuntu] how to know if I have 64 or 32 bit?

June 30th, 2009, 01:02 AM
To install a program, it asks me to choose between Ubuntu x64 (64 bit) and Ubuntu x86. I think I've figured out that 64 bit is the more advanced kind, and 86 would be another name for 32 bit, the simpler kind? Is that right? So I assumed that I had 86. But when I try to install, it only lets me install the 64 kind. How do I find out for sure which one I have? The person who installed it isn't around anymore to ask, unfortunately.

June 30th, 2009, 01:17 AM
That depends on what type of OS you have installed.Is it 64bit or 32bit?
What is the output of
uname -m

June 30th, 2009, 01:20 AM
Run uname -m in Terminal. If the output is amd64 or x86_64 then you have a 64 bit OS.

June 30th, 2009, 01:47 AM
thanks so much that was it!