I would like to know whether all core i7 processor is of type x86_64.(as per wiki it says so)

I have a core i7 machine (from /proc/cpuinfo) where only 32bit kernel in installed on the same. Also, it has 32 bit gcc compiler installed.

If core i7 supports x86_64 kernel , I would like to install the same. I hope all the 32 bit binaries can run on x86_64 kernel , so I am not going to do anything with applications.

Now, My questions are:

  1. whether core i7 supports x86_64?

  2. How to install a 64 bit cross compiler in order to build a kernel (64 bit type). My machine is Fedora FC15.

  3. I hope all 32 bit apps should work fine with this 64 bit kernel. ?

  4. How to get 64 bit cross compiler for fedora (x86_64)?

Note, I am aware about cross compiling kernel.

migrated from serverfault.com Feb 3 '14 at 14:31

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  • 1
    FC15 is way past it's end of life. You really should move on to a newer version. – user591 Feb 3 '14 at 8:44
  • I agree, but even if I upgrade FC15 same issue will exists. I mean If I simply upgrade Fedora, I still need to do the above. – kumar Feb 3 '14 at 9:46
  • Think about reinstall. – enedil Feb 3 '14 at 15:05
  • sorry...I would like to maintain FC15 due to other reasons...any other suggestions? – kumar Feb 4 '14 at 5:39

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