Read-Only Root

[markus2330]

Dear Community,

I would like to keep / (located on internal MMC) read-only and only have a minimum RW (on an additional SSD, which should be easily exchangeable without much deps on the main system and the system should even boot without the SSD). Did someone already do this?

There are many (non-Olimex) instructions, e.g. https://wiki.debian.org/ReadonlyRoot. But maybe I don't need to reinvent the wheel and don't need to find out about Olimex-specific changes myself?

best regards,
Markus Raab