[CentOS] non PAE support

Kevin K kevink1 at fidnet.com
Wed Jul 27 11:50:08 UTC 2011

On Jul 27, 2011, at 4:53 AM, Marc Deop wrote:

> On Tuesday 26 July 2011 20:55:58 John R Pierce wrote:
>> On 07/26/11 4:27 PM, Kevin K wrote:
>>> Does anyone know what I would have to modify in 6 if I wanted to run on an older Pentium M CPU without PAE?  Is it just the 
> kernel that needs to be rebuilt (maybe while installed in a system with a supported CPU)?  Or are there other components that 
> would cause problems and need to be rebuilt too?
>> generically, you'd install the kernel srpm, and modify its rpmbuild 
>> scripts to change the HIGHMEM64G kernel configure option to HIGHMEM4G 
>> ... I would also change the name of this kernel (I'd add -noPAE to it, I 
>> think), and the builder name, then run rpmbuild.
>> specifically, I haven't done this in quite a long time, so would have to 
>> figure out the details as I went along.
> And how exactly would you do that if the installation just can't proceed if it detects you do not have a PAE processor?

One way would be to move the hard drive to a supported system, install there, then move it back.  I've done that before when, for whatever reason, the install program didn't like something in the computer and hung, such as during hardware detection, but the installed system ran.


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