The whole system hung at the ‘preparing home installation’ screen.
dns problem
1. login
2. cd /mnt/data/supervisor/
3. cp dns.json bk_dns.json
4. use vi to add ,"dns://1.1.1.1"
5. cd dns
6. cp coredns.json bk_coredns.json
7. use vi to add ,"dns://1.1.1.1" twice
8. reboot