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Support recovery based Magisk

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Some devices (mainly new Samsung phones we're talking here...) using
A only system-as-root refuse to load ramdisk when booted with boot
no matter what we do. With many A only system-as-root devices, even
though their boot image is kernel only, we can still be able to add
a ramdisk section into the image and force the kernel to use it as
rootfs. However the bootloader on devices like the S10 simply does
not load anything within boot image into memory other than the kernel.
This gives as the only option is to install Magisk on the recovery
partition. This commits adds proper support for these kind of scenarios.
This commit is contained in:
topjohnwu
2019-03-30 00:49:48 -04:00
parent 5b30c77403
commit 1cd45b53b1
4 changed files with 28 additions and 14 deletions
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6
scripts/util_functions.sh
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@@ -232,10 +232,12 @@ get_flags() {
find_boot_image() {
BOOTIMAGE=
if [ ! -z $SLOT ]; then
if $RECOVERYMODE; then
BOOTIMAGE=`find_block recovery_ramdisk$SLOT recovery`
elif [ ! -z $SLOT ]; then
BOOTIMAGE=`find_block ramdisk$SLOT recovery_ramdisk$SLOT boot$SLOT`
else
BOOTIMAGE=`find_block ramdisk recovery_ramdisk boot boot_a kern-a android_boot kernel lnx bootimg`
BOOTIMAGE=`find_block ramdisk recovery_ramdisk kern-a android_boot kernel boot lnx bootimg boot_a`
fi
if [ -z $BOOTIMAGE ]; then
# Lets see what fstabs tells me