Modern rooting solutions like Magisk heavily interact with Android Verified Boot. When Magisk patches a boot.img , it alters the hash of that partition. If AVB is strictly enforced, a modified boot partition will cause a boot loop because its hash no longer matches the expected hash stored in vbmeta .
: This digest can be included in hardware-backed attestation data to provide high assurance of the device's software state.
If you’ve ever delved into Android terminal commands, checked your device’s properties via ADB, or dabbled in custom ROM development, you might have encountered a specific system property: ro.boot.vbmeta.digest . ro.boot.vbmeta.digest
$ adb shell getprop ro.boot.vbmeta.digest ffffffffffffffff... # Different!
adb shell getprop ro.boot.vbmeta.digest
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This structure is flexible, allowing all verification data to be centralized in the vbmeta partition or delegated to other partitions, enabling a wide range of trust relationships. Modern rooting solutions like Magisk heavily interact with
If the digest value changes after flashing: