bootload and SLOS

Just added bootload and SLOS
Revert "bootload and SLOS"

This reverts commit 0840a08ae0d5ba7536c17c8f80d103769df4c82d.
Revert "Revert "bootload and SLOS""

This reverts commit 1aeb39c992a41b08801d872ecf0227d7a12eee56.
Revert "Revert "Revert "bootload and SLOS"""

This reverts commit 32a14c284e17cfd978f0f7ae7719c9b128dd821f.