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Install Firefox PPA version over Snap version

It was time to update my laptop, and I already knew that the update will bring Snap, and installs the Snap Firefox version. Along with many known problems.

Install openHABian image on Linux

My plan is to reinstall openHABian on a bigger SDcard, and on a Raspberry Pi 4. The latest release (v1.5) supports the new Pi 4, and I decided it’s time to do a fresh install, and see if all my Playbooks are still working.

As always, I’m searching my shell history for the right command how to install the image … but came up empty.


openHAB: redirect port 8080 to port 80

The openHAB Raspberry image, by default, listens on port 8080. After using the image for a while, it became quite boring to always add the port to the URL. Quickly I decided to redirect port 80 to port 8080, and make my life easier.

Not sure how much work that is in the openHAB settings, I settled with redirecting or forwarding the port 80 to port 8080.


Upgrade from Ubuntu 16.10 (yakkety) to 17.10 (artful)

Sometimes old computers are not updated quickly enough, or just kept running …


Outdated and dispensable initrd images in /boot

Sometimes update-initramfs leaves old initrd images around in /boot, even when the kernel package is deinstalled. Deleting the file does not help, the next run of update-initramfs will recreate the file.

The solution is simple: all kernels which need to be rebuild are in /var/lib/initramfs-tools/ - just delete the old ones, and the images in /boot, and they will not be recreated.