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Support custom legacy Sony devices with init.real setup

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Custom ROM bring-ups of legacy Sony devices contain the following:
/init (symlink to /bin/init_sony)
/init.real (the "real" Android init)
/bin/init_sony (this was /sbin/init_sony on Android <11)

Kernel loads the ramdisk and starts /init -> /bin/init_sony
/bin/init_sony does low-level device setup (see: https://github.com/LineageOS/android_device_sony_common/blob/lineage-18.1/init/init_main.cpp)
/bin/init_sony unlinks /init and renames /init.real to /init
/bin/init_sony starts /init

Since init_sony needs to run first magiskinit needs to replace init.real instead, so add workarounds based on detection of init.real to boot patcher and uninstaller

Thanks @115ek and @bleckdeth

Fixes #3636

Co-authored-by: topjohnwu <topjohnwu@gmail.com>
This commit is contained in:
Chris Renshaw
2021-10-30 22:59:20 -03:00
committed by GitHub
parent 2c44e1bb93
commit 6663fd3526
9 changed files with 41 additions and 12 deletions
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4
scripts/uninstaller.sh
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@ -125,6 +125,10 @@ case $((STATUS & 3)) in
else
ui_print "! Boot image backup unavailable"
ui_print "- Restoring ramdisk with internal backup"
if ./magiskboot cpio ramdisk.cpio "exists init.real"; then
# Work around custom legacy Sony /init -> /(s)bin/init_sony : /init.real setup
./magiskboot cpio ramdisk.cpio "mv .backup/init .backup/init.real"
fi
./magiskboot cpio ramdisk.cpio restore
if ! ./magiskboot cpio ramdisk.cpio "exists init"; then
# A only system-as-root