Idea for a „downgrade”
I’ve been thinking about how dualbooting currently works on legacy devices (like CoolBooter) and how much storage space is wasted on the Host OS. It got me thinking about a different approach to optimize the process without modifying the IPSW file itself.
Here is the concept:
The Ramdisk Partitioning & Slimming**:** An app boots the device into a custom Ramdisk. Once inside, the Ramdisk shrinks the Host OS partition to the absolute minimum. At the same time, it actively wipes and guts the existing Host OS files directly on the device—removing non-essential system assets, stock apps, and wallpapers until it’s stripped down to a barebones bootable core.
The "Lite" Host OS**:** The device boots into this gutted, lightweight Host OS. Because it is practically empty, it boots up in just a few seconds and takes up almost no space on the flash storage.
The Boot Chain**:** As soon as the Lite Host OS boots, an automated startup script takes over at the kernel level, triggers a kexec chainloader, kills the Host OS, and boots straight into the secondary target OS (like iOS 6) on the main partition.
This way, the Host OS acts purely as a lightweight bootloader, leaving maximum storage space for apps and games on the target iOS.
I know that handling the kernel signatures on the fly is a major challenge, but from a logical standpoint, wouldn't stripping down the Host OS via Ramdisk fix the biggest storage issue with dualbooting today?
What are your thoughts on this? And yeah I wrote it with ai because im lazy ass cow which don’t know English well