x86_64 (recognized by 'lm' flag in /proc/cpuinfo) is fully backward compatible (16/32 bit).
Of course, a 32bit binary would require 32bit libraries and vice versa (so you cannot use 32bit plugins in 64bit firefox without a hack, for example). Even though x86_64 is mature enough to have all foss in 64bit form, x86_64 distributions (at least fedora/redhat) still supply popular libraries (i.e. libc) in 32bit form. I didn't understand your "Anything you can recommend?" question. - Oren On Friday, 4 July 2008 19:35:46 Eran Levy wrote: > Hi All, > I've got a new duo-core laptop and installed the Ubuntu 64-bit compilation > for the first time. Anything you can recommend? ALL 32-bit application can > work on 64-bit? any exceptions? even GTK? > Should I install any 32-bit libraries? > > Thanks for your help, > Eran ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
