Hooks

Where and how the work is done

Read image config: How to gather the information from the system
Run system tasks
Run image tasks: Put together initramfs image etc.
Prepare boot config: Prepare config from input image data
Partition boot config: Breaks up the config entries in several partitions.
Sort boot config: Sort each config partition
Update bootloader: Write bootloader config to disk and make system bootable with new config
Post-boot tasks: Add programmable hook for post-boot tasks