Grabbing just the original files from Internet Archive objects

Time for another little magic spell that I need to jot down before I forget it. And this time for the Internet Archive’s command line tools.

Occasionally you’ll want to grab an object but you won’t want any of the Internet Archive-derived products. This can be done via…

ia download --source=original <object name>

And there you go – a whole bunch of bandwidth and disk saved!

Crashing Installers with Ubuntu Server for ARM.

Whilst playing about with the latest release of the ESXi for ARM Fling on a handy Raspberry Pi, I managed to waste a good few hours before I discovered that both the 22.04 and 23.10 releases of Ubuntu Server for ARM now require more than 1GB of memory to install without the installer crashing.

First we hang…
Continue reading “Crashing Installers with Ubuntu Server for ARM.”

Building QEMU 8.0 on Raspberry Pi OS

***NEW: Building QEMU 10.0 on Raspberry Pi OS***

Introduction

Another passing year brings the 8th major release of the incredibly versatile emulation platform QEMU.

As always, the fastest, simplest way to get QEMU onto Raspberry Pi OS is via the default package manager. Unfortunately, version 5.2 – the version currently offered via the package manager – is almost 3 years out of date and an awful lot of development has occurred since.

Fortunately building QEMU 8.0 is not that difficult.

QEMU in the Raspberry Pi OS package manager…

…alas the offered version is incredibly out of date!

Continue reading “Building QEMU 8.0 on Raspberry Pi OS”

Losslessly Joining JPEGs with JPEGTran

The Introduction

On occasion, you may find that you need to join – or tile – two or more JPEG images into a single image and that you need to do so without the usual JPEG degradation that comes from saving an edited JPEG again and again and again. Fortunately, under some circumstances, there is a solution – JPEGTran from the Independent JPEG Group.

The Images

Our sample images are two tiles taken from The Map Project – in this case map Yorkshire Sheet CLXXIV.SW, a 1950s map of south-west York in the United Kingdom.

‘Image_A.jpeg’
Continue reading “Losslessly Joining JPEGs with JPEGTran”

Disabling Windows XP Ballon Tips

And it’s time for an aide-mémoire for a fact that seems to be disappearing into the ether.

Windows XP bubble tips can be disabled by:

  • Opening Regedit
  • Navigating to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
  • Creating a new String value of ‘EnableBubbleTips’.
  • Setting this value to ‘0’.
  • Restarting Windows.