I'm experiencing frequent power failures in my simple low-cost surveillance system. Making the root partition read-only would be the best choice but I need to store cameras images somewhere.
What would be a better option?
- Shrinking the root partition, making it read-only, creating a new one for the camera's data (on the same SD card)
- Making whole SD card read-only, using another drive (like an USB stick) for the camera's data
I've read some topics/articles about read-only Raspberries but I didn't find any info about data protection when whole SD card is read-only vs only root partition on it. In other words, may data corruption on read-write partition cause some failure on the read-only root partition