How to get processor type on Linux at a particular root

[patrick_jones]

Hi,

How do I get arch/processor type at a particular root?

On Solaris, I can get it by running "pkgparam -R "$alt_root" SUNWcsu" (SUNWcsr)

Wonder if something similar for Linux exists?

I know that 'uname -p' works for the current system, but I am looking to find arch for a system mounted at some root.

Thanks

[Irithori]

uname -m
cat /proc/cpuinfo

[patrick_jones]

Thanks Irithori for your reply. On my system 'uname -m' returns "i686" but I don't find such info in /proc/cpuinfo. Any idea how to figure out if the arch is "i686" from the /proc/cpuinfo file?

Thanks

[Irithori]

The problem is:
You cannot reliable conclude from the CPU capabilities to the arch used.

A 64bit CPU can run a i386, i486, i686 architecture perfectly fine

So you need two commands to figure out cpu and arch.

[patrick_jones]

Thanks for your reply. One last question (sorry, I am a newbie)

From the /proc/cpuinfo output, how to see if the cpu is 64bit or 32 bit?

Thanks

[Irithori]

Nothing to be sorry for

Look at the flags.
If there is a "lm" flag, then the CPU is capable of 64bit.
lm = long mode

[patrick_jones]

Great. Appreciate your quick replies.

Thanks

[senthilvael]

# dmidecode |less

will also provide much more details..