How to identify 32 or 64 bits -
Patrick O'Callaghan
pocallaghan at gmail.com
Thu Dec 17 13:48:35 UTC 2009
On Thu, 2009-12-17 at 18:20 +0530, Rahul Sundaram wrote:
> On 12/17/2009 06:11 PM, Bob Goodwin wrote:
> >
> > Can someone tell me how to determine if a computer can run 64 bit
> > Fedora?
> >
> > I have two similar Dell desk top computers with what appears to be
> > the same processor, one of which has had F-12 64 bit installed on it
> > and seems to be happy. I always assumed they were 32 bit computers
> > and really don't care which they are but wish to avoid using the
> > b.w. to download another copy of F-12.
> >
> > I need to know before I can upgrade the second one.
> >
> > Thanks.
> >
> > Bob
> >
>
> As I indicated in the other thread,
>
> # grep lm /proc/cpuinfo
>
> If it returns nothing, your system is 32-bit.
But the converse is not necessarily true, e.g. on my 32-bit Asus netbook
I get:
bash-4.0$ grep lm /proc/cpuinfo
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm
bash-4.0$
(the lahf_lm flag matches, though I've no idea what it means).
poc
More information about the fedora-list
mailing list