Centos 5.8 32bit Kernel-PAE

[priestly]

Hi all,

I have recently installed CentOS 5.8 32bit on my VMWare player. The RAM configured is 2GB. I noticed that kernel-pae is not installed by default.

How does CentOS decide which kernel to be installed during new installation? Is it possible to configure CentOS to install kernel-pae during installation? I noticed that using the same DVD installer , kernel-pae is installed by default on physical server which has 4gb ram.

[TrevorH]

A PAE kernel is only useful on machines with > 4GB RAM (maybe some corner cases make it useful at > 3.5GB but the gain might be offset by the performance degradation from using PAE). I do not know if the installer adjusts the kernel used based on the amount of RAM installed - I've not used a 32 bit distro since about 2008. From my vague recollection from that era, it did not install the PAE kernel on physical machines with > 4GB then, it was a post installation sysadmin task.

Please don't use 5.8 BTW. It's long long out of date and has numerous security vulnerabilities. Run yum update to get yourself up to 5.11.