The DragonBoard 410c comes pre-installed with Android (if purchased in a kit, OS can differ). If you would like to switch the Operating System to Linux based on Debian or go back to Android after using Linux, update the existing software images on your board, or unbrick your board, this page provides links to the latest software downloads.
Linaro supported operating systems
Third Party Operating Systems
Other operating systems supported on DragonBoard 410c, offered by partners.