IT Notes

Raspberry PI i4 s a great platform for FreeBSD but if u-boot detects there’s a powered hub, the boot seems to go crazy. It isn’t even able to recognize the SD partitions. The result is that the Rpi4 won’t boot and start loop.

Watchdog devices are important to be sure our servers are working. Unfortunately, watchdog daemon seem to crash if enabled on Rasbperry PI. The problem is that our Pis have a strange watchdog hardware device and needs to be petted quite often. Because of this, running the watchdog daemon without some special flags won’t work as standard FreeBSD petting time is too high. All you need to do is enable watchdog and add a flags line with some specfic options.

Alpine Linux and lxd are perfect together, especially if combined with a good file system. Let’s see how to install them on a btrfs file system.

Lxc containers are fast, small and useful. Proxmox Backup Server is quite slow with them, so here’s how to perform a fast and efficient backup using Borg.

docker-compose allows you to define a set of containers in a single file. They will be in their “namespace” and can be linked and tied together.

We can use docker both for static and dynamic websites. We have a wide choice of images - and we can even create our own.