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Old 02-03-2008, 05:19 PM   #1
Registered: Mar 2005
Distribution: Gentoo, Kubuntu
Posts: 582

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How do I build a 64-bit kernel?

I have Fedora 8 installed from a magazine's DVD, and built a kernel from 2.6.24 source downloaded from a kernel mirror. I got a 32-bit i686 kernel.

I am trying to build a 64-bit kernel from that source with no luck.

make xconfig does not appear to offer x86_64 as an option for processor type. .config has the following lines:

# CONFIG_64BIT is not set
# CONFIG_X86_64 is not set

If I try to change them manually they get changed back when I run make.

How do I build a kernel for x86_64?

The processor is an AMD Athlon 4600+


Last edited by CollieJim; 02-03-2008 at 05:20 PM.
Old 02-03-2008, 09:25 PM   #2
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Registered: Dec 2005
Location: Indiana
Distribution: RHEL/CentOS/SL 5 i386 and x86_64 pata for IDE in use
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First and foremost, you have the 32-bit version of Fedora 8 installed, building a 64-bit kernel will be useless. To start with you do not have the tools and components required to build or support a 64-bit kernel.

As a suggestion, please download and install the 64-bit OS first.
Old 02-04-2008, 12:39 AM   #3
Registered: Mar 2005
Distribution: Gentoo, Kubuntu
Posts: 582

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Thanks. I'll do that.


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