install --ondev: support optional SD to eMMC installation
Summary
- Set the label of the boot partition to
pmOS_inst_boot
, so the installer OS doesn't boot into the installed OS by accident. - Add
pmbootstrap qemu --second-storage
to emulate a device with both SD and eMMC. - Minor cosmetic fixes in related code (as separate commits).
Find details in the commit messages.
How to test and photos
Will be posted shortly in postmarketos-ondev#22 (closed).