determining processor

[Kevin Fries]

Just because you are running a 64bit machine, that does not mean you are
running a 32bit OS.  The version of Ubuntu you installed was probably 32
bit.  You can install a 32 bit OS on a 64 bit machine, just not the
reverse.

HTH
Kevin

On Thu, 2011-12-01 at 13:28 -0700, Michael Havens wrote:
> Thanks Kevin. I see in my cpuinfo flags that I support long mode too.
> But why, when I tried to install that in the kernel, did it complain
> until I put in the 32 bit version?
> 
> On Thu, Dec 1, 2011 at 12:52 PM, Kevin Fries <kevin at fries-biro.com>
> wrote:
>         Michael,
>         
>         Linux is nothing if not a chatty beast ;-)
>         
>         To find out everything you every wanted to know about your
>         CPU, you can
>         look at /proc/cpuinfo.
>         
>         My system I am on right now is a System76 Lemur, and it runs a
>         I3
>         mobile.  If I look in that file, I will see:
>         
>         vendor_id       : GenuineIntel
>         model name      : Intel(R) Core(TM) i3 CPU       U 330  @
>         1.20GHz
>         cpu MHz         : 1199.000
>         
>         among other things.  But the real keys to the kingdom is a
>         field called
>         FLAGS.
>         
>         flags           : fpu vme de pse tsc msr pae mce cx8 apic sep
>         mtrr pge mca cmov
>         pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
>         syscall nx
>         rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
>         xtopology
>         nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2
>         ssse3 cx16
>         xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm arat dts tpr_shadow
>         vnmi
>         flexpriority ept vpid
>         
>         You Google those flags and you will find out EXACTLY what your
>         CPU does
>         and does not support.  So, to answer your question
>         specifically, I look
>         in the flags and see a flag "lm", which stands for "long mode"
>         which is
>         uber-geek speak for 64bit mode.
>         
>         And sure enough, my system is running Ubuntu 11.10 in 64 bit
>         mode.
>         
>         Hope this Helps
>         Kevin
>         
>         
>         
>         On Thu, 2011-12-01 at 12:38 -0700, Michael Havens wrote:
>         > 1- I D/L a distribution
>         > 2- because I have no RW DVDs I burn the CD version
>         > 3- I install the CD version
>         > 4- After running the the install there is an ICON that says
>         'upgrade
>         > to the DVD' so I upgrade
>         > 5- my system starts to panic when running off of the battery
>         so it is
>         > wisely suggested to upgrade  my kernel.  So I am doing so it
>         asks me
>         > what kernel I am running. It had been said on the list that
>         my kernel
>         > is the 64 bit kind but when I tried to upgrade to the 64bit
>         kernel the
>         > computer complained and said 'wrong architecture'.
>         > 6- I installed the kernel for the i386 and have been happily
>         running
>         > it now for a couple of days
>         >
>         > Questions:
>         > Was I supposed to do something to make it see that it is a
>         64?
>         > Would it run if an i386 was installed on a 64?
>         > Does it really matter?
>         > --
>         > :-)~MIKE~(-:
>         
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> 
> -- 
> :-)~MIKE~(-:
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