>>How can I know that I have to use i386 or x86_64, my machine is not very new though Do some research on your computer - who makes it, what model number, what cpu, how much ram? i386 is 32bit, x86_64 is 64 bit. If you have 4 gigs of ram or more, you'll likely want the 64bit. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110116/8e34b285/attachment-0005.html>