Le 13/08/2015 06:09, Bret Busby a écrit : > Since you have mentioned an "old" system, I should perhaps mention > that apparently, Linux has abandoned support for Celeron CPU's, as, > having installed ubuntu-mate 15.09 on my HP/Compaq NX5000 which has a > Celeron CPU, and the associated and subsequent problems, I have found > that the Celeron CPU's are apparently no longer supported by Linux, as > the kernels are incompatible with the Celeron CPU - a non-PAE issue, > apparently.
That is not Linux that has dropped support for non-PAE CPUs, that is the x86 default linux image in Debian (linux-image-*-686-pae). A simple way to solve your problem is to install linux-image-*-586 instead.