System V4: reform-boot-config fails to unmount boot partition on SD card when switching to NVMe boot
reform-boot-config nvme starts to work but cannot unmount the boot partition from the SD card and fails, whether run on its own or as part of reform-migrate. Doesn't matter if running as superuser or root. Not very user friendly that it can't just eject the partition as part of the script.
/dev/mmcblk1p1 is still mounted somewhere. Please unmount before running this script reform-boot-config FAILED to run