Author Archives: Markus Birth

HP EliteBook 810 Cloud Recovery and GPT

I’ve recently acquired an old HP EliteBook Revolve 810 G3 and wanted to reset that to the factory state. Luckily, this already supports HP’s Cloud Recovery feature where you can download the recovery image from the Internet and write it to a USB drive. There’s even a choice between Windows 7 and Windows 10. However,… Read More »

Easy file sharing via Docker

To quickly setup an FTP server or SMB share using a Docker container instead of fiddling with the system daemons, I’ve found these: FTP For bringing up an FTP server, I’ve found Gareth Flower’s vsftpd container: Here, it’s important to also map ports 40000 – 40009 for PASV FTP to work. The container automatically creates… Read More »

autofs everything

I usually have a few SMB shares from my NAS mounted on my Raspberry Pis. However, I rarely need to actually use them and scripts only need them once a day (backup). So I figured: Why let the OS bother with keeping those mounts active all day long when there’s a better way? Cue autofs.… Read More »

SSH key suddenly in “invalid format”

My private SSH key is ancient. And thus it still was in the “old” RSA format, recognisable by the header: This never was an issue. Everything works fine. Until now. While trying out GitFinder, it just didn’t want to accept my id_rsa file and always came back with “invalid format”. I’ve also made sure to… Read More »

Flaky WiFi dongle toggle script

After moving to a new place, I had to put my ADS-B handling Raspberry Pi 2B into a cupboard far from any network connection. So I’ve plugged in a cheap USB WiFi dongle and connected it to my WiFi. However, I don’t know whether it’s the dongle or something specific to the RasPi2’s USB implementation,… Read More »