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Is it 64 or 32 bit ..??

When I heard this Q for the second time today at my office…
I thought of writing this a mail to my dear colleagues… :)

0. Linux

$ uname -a

If the command throws ia64 (Intel Architecture-64) OR x86_64 GNU/Linux.
Guess what it is..??

..if ya seen only i686 i586 i386 GNU/Linux >> I am sure the kernel should not support 64 bit.

1. IBM-AiX

$ file /usr/lib/boot/unix*

2. SUN OS/Solaris

$ isainfo -v

If ya couldn’t find the above command…Try

$ uname -a

SUN OS 5.7 or greater is 64 bit compliant

solaris 2.7 or greater is 64 bit compliant.

x. windows

hmmm… Live free… or die….

This entry was posted on Friday, December 23rd, 2005 at 12:14 pm and is filed under Linux, Daybook. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

3 Responses to “Is it 64 or 32 bit ..??”

  1. Aju Says:
    January 16th, 2006 at 5:19 pm

    If you run isainfo -n

    and it reports

    sparcv9

    and isinfo -k

    sparcv9

    and isinfo -b

    64

    Then you can confirm that you are running 64bit Solaris and apps.

  2. Dag Wieers Says:
    April 5th, 2006 at 11:47 am

    The problem is that uname will report what the operating systems is, not
    what the hardware is. This is what I get when I run a 32bit rhel3as on
    a 64bit blade:

    [root@xxxxxxx root]# uname -a
    Linux xxxxxxx 2.4.21-40.ELsmp #1 SMP Thu Feb 2 22:22:39 EST 2006 i686 i686 i386 GNU/Linux

    [root@xxxxxxx root]# dmidecode | grep Product
    Product Name: ProLiant BL20p G

    [root@xxxxxxx root]# lspci -v | grep 64-bit
    00:1c.0 PCI bridge: Intel Corporation 6300ESB 64-bit PCI-X Bridge (rev 02) (prog-if 00 [Normal decode])
    Memory at fdef0000 (64-bit, non-prefetchable) [size=64K]
    Memory at fdee0000 (64-bit, non-prefetchable) [size=8K]
    Memory at fde80000 (64-bit, non-prefetchable) [size=256K]
    Memory at fdff0000 (64-bit, non-prefetchable) [size=64K]
    Memory at fdfe0000 (64-bit, non-prefetchable) [size=64K]
    Memory at fdfd0000 (64-bit, non-prefetchable) [size=64K]

    I had hoped that some of the CPU flags would identify what I was looking for, but sadly I know too little about the subject. It would be nice to
    have a tool that can identify this without any doubt.

  3. vipin sagar Says:
    April 6th, 2006 at 5:49 am

    Hello Dag,
    Good too see ya comment…

    I am afraid; have ya tried the “lshw” (List Hardware) option. I installed it to get the
    hardware details.

    http://dag.wieers.com/packages/lshw/_buildlogs/?S=D :-)

    Here is my output.

    [root@vipin ~]# lshw | less
    vipin.xxx.xx.xx
    description: Computer
    product: 682452A
    vendor: IBM
    serial: 2FND360
    width: 32 bits

    *-cpu
    description: CPU
    product: Intel(R) Pentium(R) 4 CPU 1.80GHz
    vendor: Intel Corp.
    physical id: 4
    bus info: cpu@0
    version: 15.2.4
    slot: WMT478/NWD
    size: 1800MHz
    capacity: 2800MHz
    width: 32 bits
    clock: 100MHz

    [root@vipin ~]# lshw | grep width
    width: 32 bits
    width: 32 bits
    width: 64 bits /* my -memory -bank:0 width */
    width: 32 bits
    width: 32 bits
    width: 32 bits
    width: 32 bits
    width: 32 bits
    width: 32 bits

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