Le 13/08/2015 12:13, Bret Busby a écrit : > i386 is 686, and not 586 .... ????? Yes, I think that 386 Ubuntu Linux images are build with 686 instruction set compatibility. 386 meaning here x86. Anyway, you might have a way to force enabling PAE on your Celeron in Ubuntu: https://help.ubuntu.com/community/PAE