Dear Jeffrey and Martin, Thank you both very much for the given & offered help - really appreciate that! I almost figured it out thanks to Jeffrey‘s hint on the other comments, but I must have messed up something else that currently prevents the device from booting properly. I ordered an TTL UART adapter which should already have arrived last Friday, but that‘s a different story ;D I‘m quite confident that I will be able to fix this once the delivery finally arrives. I’m already looking forward to this tiny project for the holidays :-) I will probably write an update later today.
> On 22. Dec 2025, at 06:34, Martin Michlmayr <[email protected]> wrote: > * Rick <[email protected]> [2025-12-17 09:03]: >> I'm currently trying to recover Debian on a QNAP TS-412 and I'm >> encountering the same "Failed to obtain MAC address" message as mentioned >> in the thread author's post. I understand it's been a while since this >> topic was initially discussed, but any recollection of the solution would >> be greatly appreciated. ;D > > Did you figure out a solution or not? > > I've forgotten a lot of things about QNAP but I'll try to help. To > start with, can you run the script with "sh -x SCRIPT" so we see the > exact failure. > > What QNAP model do you have? > -- > Martin Michlmayr > https://www.cyrius.com/

