Tag Archives: linux

Realtek RTL9210 and TRIM

I’ve recently started buying M.2 drives instead of traditional 2.5” SSDs. For USB enclosures I went with a UGREEN M.2 NVMe USB3.2 Gen2 enclosure that comes with all the bells and whistles. They have a Realtek RTL9210 chip which does support the “discard” or TRIM operation to mark unused space on the SSD. However, some… 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 »