How to find out 32 or 64 bit kernel is installed?

alaios · 12-02-2009, 11:24 AM

Hey i am running opensuse 11.1 and i ma trying to find out if a 64 bit kernel is installed! Any clues?

dunix · 12-02-2009, 11:29 AM

Run this in a command prompt/terminal

Code:

uname -a

Towards the end you'll either see i686 or x86_64.
i686 = 32bit
x86_64 = 64bit

raju.mopidevi · 12-02-2009, 11:36 AM

if you want to know about your CPU information

Code:

raju@linux-snzv:~> cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 14
model name      : Genuine Intel(R) CPU           T2300  @ 1.66GHz
stepping        : 8
cpu MHz         : 1000.000
cache size      : 2048 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon bts pni monitor est tm2 xtpr
bogomips        : 3332.76
clflush size    : 64

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 14
model name      : Genuine Intel(R) CPU           T2300  @ 1.66GHz
stepping        : 8
cpu MHz         : 1000.000
cache size      : 2048 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon bts pni monitor est tm2 xtpr
bogomips        : 3328.91
clflush size    : 64

if you want to know 32 bit or 64 type "arch"

Code:

raju@linux-snzv:~> arch
i686

TITiAN · 12-02-2009, 12:06 PM

I think "uname -m" is the right command. I have a 32-bit kernel running a 64-bit CPU and it says "i686".

Quakeboy02 · 12-02-2009, 12:40 PM

Edited:
Oops. Never mind. I didn't read your post correctly.