Installation did not complete but HA is booting

I’m intending to install HA on a Dell Wyse 5060 with a 8mb ssd drive. I first created a bootable Xubuntu USB and trying this I was able to run Balena Etcher to attempt to flash the ssd.

I’ve tried 3 times and on each occasion the flashing gets stuck at 26% at the system is unresponsive - mouse does not respond. However I have rebooted and it seems that home assistant appears to boot. I get to a HA> command prompt and a message advising which url to use… does this mean that installation has been successful?

I’m concerned that i am missing something, anyone have any ideas why I can’t get a 100% confirmation during the flashing?