Ah unfortunately that's not supported. When running umbrelOS on a Raspberry Pi, it stores everything on the HDD/SSD you connect to the Pi on install to make sure your data isn't susceptible to microSD card's wear and tear. So if you change the HDD/SSD, it will format the drive and use it as the main drive. And connecting two or more drives to the Pi isn't supported because the Pi lacks power to support more than 1 drive at once, causing abnormal behavior.
mayankchhabra|2 years ago