Monday, June 05, 2006

Install linux-kernel-2.6.15-23-686 for SMP support

The Inspiron 9400 has an Intel Core Duo processor. However, the default Ubuntu Dapper Drake 6.06 installs the 386 kernel for which there is no multiprocessor (SMP) support.

Therefore, I had to install the 686 kernel, specifically linux-image-2.6.15-23-686 (use either sudo apt-get install linux-686 or the graphical Synaptic Package Manager).

After installing this package and rebooting I was able to see both processors in the System Monitor tool, and both were listed in /proc/cpuinfo.

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