A Blog Less Ordinary

The blog of Dave Ingram

Category Archives: Tips and Tricks

Creating a presentation with LaTeX and powerdot

A few days ago, I gave a talk at PHP London about using OAuth with PHP. I started out building it in OpenOffice, but quickly found the process annoying, especially considering that I wanted to export to PDF with progressive disclosure on some slides. After putting the skeleton of the talk together, I decided to […]

Useful git configuration fragments

Time for a quick micro-post, I think. I feel like sharing two useful fragments of my git configuration. First up, aliases. I have a few useful shortcuts defined, as well as some nice ways of displaying a repository’s history. I’ve aliased many of the common commands to two-letter versions which evoke the similar Subversion command […]

Cloning a git-svn checkout

The scenario is that you have used git-svn to import an SVN repository, and you want to make use of the already-imported commits elsewhere. Unfortunately, git clone does not (currently) clone the git-svn information. It looks like we have to fully rebuild the git-svn repository, which would then mean pulling every commit from the Subversion […]

Recovering from pvmove failure

Note: This is a fairly rambling explanation of recent events. I assume that you have at least a passing knowledge of LVM and its terminology. This was written to prove that it is possible to recover from pvmove failing (in certain cases) due to the way it performs its operations and backs up metadata.

Hearing aid direct audio input

Many hearing aids can handle direct audio input (DAI), often via a “shoe” that attaches to contacts on the aid itself. This shoe then provides a DAI jack (sometimes called a europlug or eurojack) that cables can be plugged into. There seems to be a complete lack of cables designed for people with a single […]

Restoring from LVM and VMWare disks

I recently had to restore a server that failed to boot after a power cut. This machine was a Linux VMWare host, and it had three Linux guest virtual machines that were running at the time. While we had full backups available, I decided to set myself the challenge of recovering the entire images, to […]

4 on Demand: Improved

For all that use 4 on Demand, the video-on-demand service for Channel 4 in the UK, I have a useful tip for you. Although it has a large number of programmes available for free, its interface is (to say the least) highly annoying. But there is a fix! Disclaimer: This is non-standard usage of 4od, […]

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