README-SERIAL-NUMBER.md

Assigning Hostnames Automatically in Sbnb Linux

During the boot process, Sbnb Linux reads the machine's serial number and assigns the hostname as:

sbnb-${SERIAL}

If no serial number can be read, then a randomly generated string is used instead.

Once the machine boots and connects to Tailscale (tailnet), it will be identified using the assigned hostname.

Example

Below are pictures from a test 1U rack-mount machine based on an ASRock motherboard:

Serial number on the top of the chassis case

Serial number in the ASRock BMC Web User Interface (WebUI)

Serial number retrieved using dmidecode on the Linux command line

Machine registered in Tailscale (tailnet)