Ab Multiboot -

: Updates are installed on the inactive slot while the user continues to use the active one. If the update fails, the device simply reboots into the old, working slot.

A separate home or data partition (formatted as exFAT for Windows/Linux cross-compatibility) so your personal files are accessible regardless of which OS slot is active. Fitting Everything Together - 0pointer.net ab multiboot

Furthermore, Microsoft has experimented with "Hotpatching" (AB for the Windows kernel) and Linux’s kexec system calls are evolving to mimic slot-based switching without hardware reboots. : Updates are installed on the inactive slot

Below is a structured white paper outline and draft exploring both the specific software and the underlying technical concept. ab multiboot