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I'd like to install 13.10 (Saucy) hardware enablement (HWE) stack to my Ubuntu 12.04 (64-bit) because I need a newer Linux kernel.

This wiki page explains what "hardware enablement stacks" are. Among other things it says:

Only the -generic x86 kernel flavor ... will be supported...

Also, this answer says:

...This is only recommended for x86 hardware installations...

Is x86 here synonymous to 32-bit/i386 architecture (but not 64-bit/AMD64), or is it i386/AMD64 (but not ARM)?

Can I install this "hardware enablement stack" in a 64-bit/AMD64 Ubuntu? Will it be supported with future updates?

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Yes, x86 means amd64 or i386. If you just want a new kernel, you could install one from the mainline kernel PPA. You could also upgrade to 14.04. –  bain May 28 at 10:47
    
@bain Thanks! It's good news. Do I understand it correctly, that if I install it from the mainline kernel PPA, I will not have automatic updates? And I will have a better chance of some incompatibility issues than with a well tested Ubuntu's "hardware enablement stack"? –  Alexey May 28 at 10:59
    
That is probably true. –  bain May 28 at 11:00
    
@bain Thanks! I would accept it if you put it as an answer... –  Alexey May 28 at 11:02

1 Answer 1

up vote 1 down vote accepted

Yes, x86 means amd64 or i386. The reference only the -generic kernel flavor refers to the various kernel packages available; "generic" is the regular kernel, but there are also kernels optimised for virtual machines and low latency, and those other kernels are not supported by the hardware enablement stack.

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