[SOLVED] Celeron CPU: 32 or 64 bit?

chicagocoyote · 02-08-2014, 06:28 PM

I currently have Fedora 17 32bit installed on an
old Dell with a Celeron processor. I would like to
know if this machine could run a 64bit version
of Linux. Appended is the current contents of
/proc/cpuinfo

Is this a 32 bit or 64 bit processor?

Thanks

Code:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      : Intel(R) Celeron(R) CPU 2.53GHz
stepping        : 9
microcode       : 0x3
cpu MHz         : 2533.270
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
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 constant_tsc pebs bts pni dtes64 monitor ds_cpl cid xtpr
bogomips        : 5054.06
clflush size    : 64
cache_alignment : 128
address sizes   : 36 bits physical, 32 bits virtual
power management:

chicagocoyote · 02-08-2014, 06:32 PM

I think I am able to answer my own question with
the command lscpu:

Code:

Architecture:          i686
CPU op-mode(s):        32-bit
Byte Order:            Little Endian
CPU(s):                1
On-line CPU(s) list:   0
Thread(s) per core:    1
Core(s) per socket:    1
Socket(s):             1
Vendor ID:             GenuineIntel
CPU family:            15
Model:                 4
Stepping:              9
CPU MHz:               2533.270
BogoMIPS:              5054.06
L1d cache:             16K
L2 cache:              256K

Looks like a 32bit processor.

syg00 · 02-08-2014, 06:39 PM

Indeed - it needs "long mode" (lm) flag for 64-bit.

ReaperX7 · 02-08-2014, 07:17 PM

Isn't there also usually a flag for EM64T or AMD64 on 64-bit too?

TobiSGD · 02-08-2014, 07:47 PM

Quote:

Originally Posted by ReaperX7

Isn't there also usually a flag for EM64T or AMD64 on 64-bit too?

At least not on any of my 64 bit systems.

@chicagocoyote: According to the specs of your CPU you have the Celeron D 325, which was one of the last 32 bit only Celerons, its successor, the Celeron D 326 was already based on the 64 bit Pentium 4 CPUs.
Please keep in mind that Fedora 17 already reached its end of life, you should upgrade to a supported version.