The non-PAE kernel is a version of the 32-bit linux kernel that does not use 48-bit addressing, limiting memory size. This kernel is often used on older systems that cannot use PAE and refuse to boot with a regular kernel.

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What upgrade options for non-PAE machine?

The last time I upgraded this machine it failed because I have a non-PAE processor. I was forced to reinstall the last, old version of Xubuntu. Now I fear I'm stuck with a discontinued distribution. ...
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Ubuntu Server on a 32- bit Non PAE Machine

I would like to install any version of Ubuntu Server on a fairly old machine to both test out Ubuntu Server and have a bit of fun. The problem I have encountered is that the machine does not have PAE ...
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PAE on Core 2 duo CPU

I have an Panasonic CF-52 with Core 2 duo P8400 CPU. I'm using Xubuntu 14.04. It has 4GB RAM. It's better to enable PAE for this system? Last time when I was using Elementary OS it was automatic ...
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Installed 14.04 on a alix board, can not update

It's the same question like here: Installed 14.04 on a non-PAE (Pentium-M), but now I can't update ("This kernel does not support a non-PAE CPU.") I get a similar error message: This ...