config.txtfile is used to configure boot and hardware configuration on Raspberry Pi hardware, similar to how the "BIOS" is used on an Intel PC.
/flashboot partition is read-only by default, so we need to remount it in read-write mode:
nanotext editor to modify the file. Save changes with
ctrl+oand exit using
/flashpartition back to read-only mode:
config.txtto be applied:
config.txtas described above, uncommenting the license key lines by removing the
#marks, and replacing
00000000with the keys you received after purchasing:
config.txtby removing the
\#mark (and space)
/flash/overlaysand they are configured in
config.txtin the root folder of the SD card that you boot the Raspberry Pi from. The following are examples of common overlay changes.