A word about android, dynamic and stuff

From Android Boot Manager
Jump to navigation Jump to search

This page contains a bit of info about android dualboot handling for platform and app developers. Usually not too relevant for porters. All info here is up to date as of September 2023. Take all info found here with grain of salt.

Handling super

Obviously a first question when it comes to dualbooting on modern android phones, is what to do with so called super partition, that in fact should contain such parturition as:

  • system
  • vendor

Likely to contain:

  • product
  • system_ext

Can contain:

  • odm

Those partition might or might not be in 2 sets A and B. Right some devices are very modern but still A only.

The ABM team decided to create a separate super partition for each android based os installed, a big suprise they are named: super1, super2, ..., superX

As partitions are located on sd card and android wants to mount them from /dev/block/by-name, we should somehow get them there with minimum to no binary patching. Apparently its easy as adding path to sd device, like ```soc/8804000.sdhci``` to ```androidboot.boot_device``` but you should leave old one as first and separate wit ,

Retrieved from "https://wiki.andbootmgr.org/index.php?title=A_word_about_android,_dynamic_and_stuff&oldid=195"