Hi guys, I am newbie about HA.
Talking about Raspberry ad HA server, I read is adviced SSD instead microSD due to possible microSD failure.
I usually use microSD with read/write filesystem during testing/development, then setting filesystem in read-only and creating virtual folders in RAM for read/write operations.
Does HA supports read-only filesystem or SSD is the only way?
Thanks.
If your boot device is read-only, then the OS will not run.
I was just discussing this with someone else recently. Unfortunately HAOS does not offer a “Live CD” read-only/run-in-ramdisk option. If you were extremely motivated you could try using Cubic to create a custom Ubuntu live image to run HA perhaps in docker. Of course unless you could point the /config volume to a network share, you would lose all data, including configuration, whenever you rebooted.
Hello and Welcome!
I’d like to add that SSD would be better for speed in general and if using the Home assistant OS best for it to have all available memory, it will also be what I suspect most users would have configured up so it helps to be with a similar setup if you run into problems rather than trying to rule out a custom configuration.
There’s nothing stopping you having the microSD card and later switching to a more powerful setup (be it Raspberry Pi with SSD or some other setup) - just make sure you setup the backup and have the backup outside of the microSD card just in case!
Good luck!