Boot from SSD - Outdated description?

Not optimal, but I think, that I can live with that, because the eMMC is still there and if a rollback has installed the last snapshot from /dev/sda1 in the eMMC I should be able to reinstall it after that by hand again on /dev/sda1. Maybe with the help of the serial console.

Interesting, but I’m pretty sure, that it didn’t work on my router. At first I tried it only with the change of the boot order and I then found out, that the boot script was not found.

I think, that you can add another bug to your list, which is relevant, if you boot from a SSD. Look at this post.