[PLUG] Ubuntu 12.04 requires pae on the CPU?

Richard C. Steffens rsteff at comcast.net
Tue May 15 14:17:23 UTC 2012


On 05/14/2012 06:00 PM, Scott Garman wrote:
> On 05/14/2012 05:49 PM, Richard C. Steffens wrote:
>> So, after burning the right iso, I tried to boot it on my laptop. I get
>> the error message:
>>
>> _________________________________________________________
>>
>> This kernel requires the following features not present on the CPU: pae
>>
>> Unable to boot -- please us a kernel appropriate for your CPU.
>> _________________________________________________________
>>
>>
>> Sigh. My desktop machine has the feature, but my laptop does not.
> I assume you're referring to the amd64 version of Ubuntu for the Pentium
> 4, and the i386 version for the Pentium M?

Actually, I hadn't pursued it far enough to figure that out, yet.

> Running those respective versions on your machines should still be
> "equivalent" software - you can make sure the same list of packages is
> installed on each machine.

I've always taken the default. Would it be different for the two 
versions? How would I know?

> Userspace applications can use the same
> configuration files, etc. It's just that the software will have been
> compiled with some different CPU optimizations and the kernels will be
> somewhat different.

That's good. While I always like to go buy new toys -- I mean tools -- a 
new laptop isn't part of the current budget.

> If you want absolute binary compatibility between the two machines, you
> could run the i386 version of Ubuntu on both of them. But I'm not so
> sure you really need to do this.

That's a thought. I might just try that. Step one is to try it on the 
laptop. If the experience is anything like 11.10 I might be ready to 
change my desktop before Halloween. :-)

Thanks for the comments.

-- 
Regards,

Dick Steffens





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