How to identify 32 or 64 bits -

Bob Goodwin bobgoodwin at wildblue.net
Thu Dec 17 13:44:03 UTC 2009


On 17/12/09 07:50, 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.
>
> Rahul
>
>    
I'm sorry, I missed the "grep." So all I did was cat the /proc/info and 
didn't know what to look for?

This F-11 box yields:

    [bobg at box9 ~]$ grep lm /proc/cpuinfo
    "nothing returned"


While the Omega F-12 box yields:

    [bobg at box6 ~]$ grep lm /proc/cpuinfo
    flags        : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
    cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
    syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid
    cx16 xtpr
    flags        : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
    cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
    syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid
    cx16 xtpr


 From which I shall conclude that box6 is 64 bit and will work with the 
version installed but that box9 will not.

So I will have to burn up some more of my b.w. allotment and download 
the final release.  Ok, just as long as I know I'm not doing something 
unnecessary. I knew I was taking a chance with the RC1 version.

Once more I appreciate your work and the help.

Thank you.

Bob





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