linux

HOWTO: kvm on Ubuntu Feisty

KVM is a kernel-level virtualization technology/application that provides a complete PC virtual machine under Linux when you have a processor supporting VT. AMD and Intel both have processors which provide hardware support for virtualization to decrease the cost of translating all privileged instructions. In a recent study, vmware showed performance losses of 46% when functioning as a webserver. This is not out of line with expectations; the primary purpose of vmware is to consolidate little-used servers into a single machine.

Epson Perfection 3170 Photo Scanner (aka GT-9400) on Ubuntu Feisty

This is a fairly niche application, but at my place of employment I have an Epson Perfection 3170 Photo Scanner. I'm not even using the photo (negative/slide) scanning capabilities, I'm just using it as an ordinary scanner. It is however very fast and unprecedentedly quiet. I wanted to use this scanner under Linux (Epson provides Windows 95+ drivers and MacOS 9+ drivers, but no Linux drivers) sometimes, and on the Mac sometimes.

Fun with Cinelerra

Cinelerra (whose domain is reminiscent more of a porn site than a software site) bills itself as a "Movie studio in a Linux Box". In reality, when it comes to getting it going from the sources it's a headache in a Linux box. They do provide information on building cinelerra, but I warn you now, the site is slower than the target of a slashdotting (and I assure you, it's not my connection - I think a modem could outrun them.) The documentation tells you nothing about dependencies other than that you will need nasm and yasm to build the software, but the download page features a longish list of applications.

Installing OpenGroupware.org 1.1 on Debian Linux

The first and most important thing to know about OpenGroupware.org is that the documentation is absolute crap. It is clear that first and foremost, the goal is to sell the complete server distribution that works from install. The system has become much more work-at-first than it used to be, but the install is still pretty lumpy. This document will tell you how I managed to install the latest (as of 20060530) version of OpenGroupware.org (OGo) on a fairly plain Debian sarge (currently the stable release) installation.

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