nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqj3l586whstsnz4aqdpxnh5hm54x5un8e9vefpwuxemjwwspt4q5qcupgkx (nprofile…pgkx) GrapheneOS is an operating system stored on writable SSD partitions.
An SoC boot ROM loads the main SoC boot firmware from the SSD and then the final stage of that firmware loads GrapheneOS. There's a ROM recovery mode which loads if the SSD firmware can't be loaded from the SSD. The boot ROM including the ROM recovery mode is a ROM. The firmware and the OS on the SSD aren't ROMs.
There are various other ROMs for other components beyond the SoC boot ROM too.
