Hass.io not working after OS update?

Not sure if this is the right forum, apologies if it’s not.

I saw I had some updates for both the Hass.io software and the OS this morning, so I decided to click Update. The hass.io worked fine, the OS one… not so much. Since updating I can’t access http://homeassistant.local:8123/, so I rebooted it (pulled/plugged in power)… still nothing. I plugged in a monitor and keyboard, rebooted again, and it seemed to start up fine, then gave me a login screen. I logged in with the default ‘root’ user (no pw) and now it’s giving me a ha console? What do I have to do to make it run normally again, and have I lost any existing configuration?

If you can gain access to a prompt then you can try to start HA manually by typing ha core start.

You can also just type ha by itself to see the commands:

log $ ha

The Home Assistant CLI is a small and simple command line utility that allows
you to control and configure different aspects of Home Assistant

Usage:
  ha [command]

Available Commands:
  addons         Install, update, remove and configure Home Assistant add-ons
  audio          Audio device handling.
  authentication Authentication for Home Assistant users.
  cli            Get information, update or configure the Home Assistant cli backend
  core           Provides control of the Home Assistant Core
  dns            Get information, update or configure the Home Assistant DNS server
  docker         Docker backend specific for info and OCI configuration
  hardware       Provides hardware information about your system
  help           Help about any command
  host           Control the host/system that Home Assistant is running on
  info           Provides a general Home Assistant information overview
  jobs           Get information and manage running jobs
  multicast      Get information, update or configure the Home Assistant Multicast
  network        Network specific for updating, info and configuration imports
  observer       Get information, update or configure the Home Assistant observer
  os             Operating System specific for updating, info and configuration imports
  resolution     Resolution center of Supervisor, show issues and suggest solutions
  snapshots      Create, restore and remove snapshot backups
  supervisor     Monitor, control and configure the Home Assistant Supervisor

Flags:
      --api-token string   Home Assistant Supervisor API token
      --config string      Optional config file (default is $HOME/.homeassistant.yaml)
      --endpoint string    Endpoint for Home Assistant Supervisor (default is 'supervisor')
  -h, --help               help for ha
      --log-level string   Log level (defaults to Warn)
      --no-progress        Disable the progress spinner
      --raw-json           Output raw JSON from the API

Use "ha [command] --help" for more information about a command.