Path to cmdline.txt file has been changed in Raspberry Pi OS

[votdev]

At https://docs.k3s.io/installation/requirements?os=pi there is a guide how to enable cgroups on Raspberry Pi OS. All other howtos i found are mentioning /boot/firmware/cmdline.txt instead of /boot/cmdline.txt. This needs to be validated. Sadly i have no Raspi hardware to do that myself.

Maybe this applies only to the latest Raspberry Pi OS (Bookworm).

References:

• https://everythingdevops.dev/step-by-step-guide-creating-a-kubernetes-cluster-on-raspberry-pi-5-with-k3s/
• https://medium.com/@stevenhoang/step-by-step-guide-installing-k3s-on-a-raspberry-pi-4-cluster-8c12243800b9
• https://ionutbanu.medium.com/kubernetes-on-raspberry-pi-5-part-3-install-k3s-on-master-node-f95ea35a8b1c
• https://github.com/k3s-io/k3s/issues/2067#issuecomment-801710748

[dereknola]

RaspberryPi OS when it moved to Debian 12 base got rid of the migration symlink between the old /boot/cmdline.txt and the new /boot/firmware/cmdline.txt