Andy Ferguson

Setting up a new Ubuntu machine

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I’ve had to set up a few Ubuntu desktop machines recently, and I thought it was worth documenting what I install on each one, and how I automate those installations as much as possible. I wrote about this a few years ago but so much has changed with my setup that I thought it was … Read more

Gnome shell extensions

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On a machine running Gnome, browse to https://extensions.gnome.org/local/ to see the extensions you have running (and install new ones). Ideally you want to be running vanilla Gnome to get the best out of this. sudo apt install gnome-session will give you what you need (then reboot and choose a Gnome session).

Hyper-V and Virtualbox on Windows 10

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They won’t run together, so if you enable Hyper-V then 64 bit Virtualbox VMs will fail to run, and it won’t be possible to create new ones. If there are no 64 bit options in Virtualbox then this is probably the cause. Supporting information is here.

SSH on Ubuntu for Raspberry Pi

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Ubuntu for Raspberry Pi doesn’t have SSH installed or enabled. To connect to a Pi remotely you will need to type sudo apt install openssh-server to install it, and then sudo systemctl enable ssh to start the service every time the Pi boots.

iOS 11 hints and tips

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All the good stuff is here. For me this makes the iPad almost as good as a Mac for most things, and a lot better for some.

Bulk image manipulation

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Resizing Navigate to the directory containing the images (via the terminal) and then enter the following command: mogrify -resize 20×20 *.png Which will resize all PNG files to 20×20 pixels. This can obviously be altered to cater for different sizes and file types. Conversion The command to convert a whole folder of images from .bmp … Read more