On 9/1/2013 9:44 PM, Joel Rees wrote: > On Mon, Sep 2, 2013 at 7:18 AM, Pascal Hambourg <pas...@plouf.fr.eu.org> > wrote: >> Richard Owlett a écrit : >>> Stan Hoeppner wrote: >>>> >>>> So I fail to see why your knowing the "CPU bus width" is relevant to >>>> anything. >>> >>> If I understand correctly some processors can run 32 bit OSes but >>> not any 64 bit OS. >> >> This has nothing to do with bus width. > > Not an entirely separate issue from the address bus width, however.
While it's possible to back track a CPU's ISA from knowing the address line width, there are far more practical and fool proof methods to determining the ISA. > Just for fun, I looked at what this box tells me with lscpu and > cat-ting /proc/cpuinfo. The relevant lines in the reply are, for > lscpu, > > CPU op-mode(s): 32-bit > > which tells me that it can run OSses in 32-bit mode, I think. You're making this harder than need be. Look at the 'flags' data in /proc/cpuinfo. If you see 'lm' it's a 64 bit ISA CPU and can run a 64 bit OS. If 'lm' is not present it's a 32 bit only CPU. 'lm' represents "Long Mode" which is the operating mode of x86-64 processors that enables execution of 64 bit instructions. -- Stan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/52244145.6000...@hardwarefreak.com
