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Archive for December, 2007

Ubuntu Server on Virtualbox

by Jiang Yio on Dec.27, 2007, under Computing

I tried running Ubuntu Server on VirtualBox today and it wouldn’t boot: it just said that the “CPU is too old for this kernel.” Well, I know I have a modern CPU and a modern piece of virtualization software. In addition, the installer ran fine, so what could have gone wrong?

I did some research. Apparently, Ubuntu Server uses a special kernel that requires a CPU with PAE (Physical Address Extension), but the VirtualBox CPU doesn’t support PAE. Uh-oh. So I got out my installation CD again, booted into a recovery console shell, and replaced the kernel:

apt-get update
apt-get install linux-generic
apt-get remove linux-server

After rebooting into the new kernel, the system operated normally.

Sept 7, 2008: As indicated by koomba7, VirtualBox now has a PAE option that can be enabled.

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Opera vs. Firefox vs. Internet Explorer (picture)

by Jiang Yio on Dec.24, 2007, under General

Man, this is pretty amazing. (ripped off Opera Watch)

Firefox (with extensions)

Firefox (no extensions)

Opera

Internet Explorer

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