I downloaded ai-all.zip from
http://www.alwaysinnovating.com/release/latest/, which I then copied to a usb thumb drive.
I put the thumb drive in the TB,
I booted into my old os and typed:
sudo -s
wget
http://www.alwaysinnovating.com/release ... install.shchmod a+x reinstall.sh
./reinstall.sh
As per instructions.
After downloading some files the TB prompted me to reboot, which I did.
I pushed the power button to enter the multi-os graphical interface. Then chose Advanced menu.
Option 6, and followed instructions. The TB recognised the ai-all.zip from the thumb drive and proceeded to install 5 things. Between something like 3 and 5 there was the continuous error message 'sleep: invalid number '.05', nonetheless the TB finished installing all 5 things, and prompted me to reboot.
I used the power button to shut down the device.
At which point it became impossible to start the TB up again. There is no response to pushing the power button at all.
Not having a card reader I am unable to try one of the other installation options.