Homebrew does not support your computer's CPU architecture

[staticfloat]

I'm really glad to see someone tackling Homebrew on linux! I know this is a monumental task, so anything I can do to decrease the workload my issues will create, please point out!

$ brew install git
Sorry, Homebrew does not support your computer's CPU architecture.
For PPC support, see: https://github.com/mistydemeo/tigerbrew
$ uname -a
Linux lebaron.ee.washington.edu 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:30 UTC 2013 i686 i686 i686 GNU/Linux
$ cat /proc/cpuinfo | grep name
model name      : Intel(R) Core(TM)2 Duo CPU     E7500  @ 2.93GHz
model name      : Intel(R) Core(TM)2 Duo CPU     E7500  @ 2.93GHz

[sjackman]

Hi Elliot,

I believe that you're running a 32-bit kernel, because of the i686. Can you confirm that's the case? Do you have a particular reason to use a 32-bit kernel, and could you switch to a 64-bit kernel?

Cheers,
Shaun

[staticfloat]

Hm. Interesting. When I bought this processor, I could have sworn it said it was 32-bit only, but it appears I've got a 64-bit processor.

Switching to 64-bit is a non-trivial process; is there an inherent problem with 32-bit and homebrew?

[sjackman]

No, it's quite fixable. It should be a one-line patch. Here's the code to fix:
https://github.com/Homebrew/linuxbrew/blob/linuxbrew/Library/Homebrew/os/linux/hardware.rb#L9

Is that something you'd like to do?

[staticfloat]

Sure, I did it, and now I get:

$ brew install git
Error: Permission denied - /Library

[sjackman]

Set HOMEBREW_CACHE. See #2
This issue could be improved for sure.

[staticfloat]

That works, thanks!