Firstly, a hello.. It's been a while since I played around with TiVos.. originally with the Series 1 model (I imported two from the USA).

I'm now having a play with a series 3 unit.

I've created the boot USB and successfully have it starting up the TiVo-S3-Installer-0.6 and am following the instructions. However, prepping the disk it has got stuck on the screen

Active kernel on /dev/sda/ is in partition
Boot parameters are
Patching Kernel

It's been sitting here for some time, without asking for a root password to be created.

I noted in windows with winmfs it could not see this drive either, although it works fine in the tivo and I can play the recordings (from 2017.. noice!)