Install Magisk

Every when I need to update my LineageOS, I lost my root access with Magisk and need to do a list of steps to solve the problem.

Install Magisk apk: https://github.com/topjohnwu/Magisk/releases/latest
More details: https://www.xda-developers.com/how-to-install-magisk/

Follow the list:

• Download the recovery.img of your room.

  Example: https://download.lineage.microg.org/alioth/

• Copy recovery-alioth.img to phone;

  I used the follow commant to do this:
  

  adb push lineage-18.1-20211127-recovery-alioth.img \
           /sdcard/Download/alioth.img
  

• Open Magisk app and select Install for Magisk near the top

• Use 'Select and Patch a File' method, finding and selecting the alioth.img file

• Click LET'S GO and let it finish.

• Retrieve the image from the phone; I used:
  
  

   adb pull /sdcard/Download/magisk_patched-[random-strings].img \
            ~/patchedboot.img'

• Reboot phone to bootloader by running:
  

  adb reboot bootloader
  

• Flash patched image via:
  

  fastboot flash boot ~/patchedboot.img
  

• Reboot into system via:
  

  fastboot reboot