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[ ROOT ] Kali NetHunter on Redmi Note 8 (ginkgo) After Android 16


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A field report from the AVB frontier

A field log from the edge of verified boot.

This was not a clean install. It was a negotiation with a stubborn device stack: LineageOS 23.2Android 16TWRPfastbootADB, and a NetHunter path that kept collapsing under AVB, encryption, and kernel mismatch.

The phone was a Redmi Note 8 (ginkgo). The problem was never “just flash the zip.”

The problem was the system beneath the zip.

Scene One: The Loop

The device kept returning to the same symptom set:

  • NetHunter logo
  • brief hope
  • reboot

Recovery added its own small insult:

  • /data looked empty
  • only lost+found or a thin recovery-created directory structure
  • internal storage felt absent, not broken, just unreachable

Fastboot still answered. Lineage sometimes booted. That was enough to keep going.

Autopsy

1. Verified Boot Was Still in the Room

The custom kernel path was being rejected by AVB.

The most obvious signal looked like this:

Failed to find AVB_MAGIC at offset: 0

That message wasn’t noise. It was the system saying the trust chain was broken and it still cared.

2. The vbmeta on Hand Wasn’t Real Enough

The extracted vbmeta image was unusable in practice.

It looked present, but it was the wrong kind of present:

  • sparse or incompatible
  • not suitable for direct flashing
  • not a valid bypass image

So the first real fix was not flashing faster. It was generating a vbmeta that actually did what the stack needed.

3. Encryption Kept Erasing Progress

This was the deeper trap.

The cycle was simple:

  1. format /data
  2. recovery can see it again
  3. boot the ROM
  4. Lineage re-encrypts it
  5. recovery loses visibility again

What looked like “empty storage” was really a visibility problem created by FBE and a recovery environment that could not cleanly decrypt what Android 16 rebuilt.

That meant /data was not gone. It was behind glass.

4. NetHunter Was Innocent, But Unforgiving

The install kept failing because the stack was mismatched.

NetHunter is not a universal payload. It is only as stable as the layer beneath it.

That means:

  • Android version matters
  • kernel version matters
  • device-specific package matters
  • boot chain matters

A13 or older package logic on an A16 base is not “close enough.” It is a loop generator.

Core Insight

NetHunter is kernel-driven, not zip-driven.

Without these three conditions, nothing above them matters:

  • the right kernel
  • AVB disabled
  • writable, usable /data

No amount of reflashing fixes a foundation problem.

The Fixes

I. Build a Real vbmeta Bypass

avbtool was required.

git clone https://android.googlesource.com/platform/external/avb
cd avb

Then:

python3 avbtool.py make_vbmeta_image \
--output vbmeta-disabled.img \
--flags 2

Flash it:

fastboot flash vbmeta vbmeta-disabled.img

This turned off the part of the chain that kept rejecting custom boot content.

II. Rebuild /data by Hand

Recovery did not have a working mkfs.ext4, so the filesystem had to be rebuilt directly.

mke2fs -t ext4 -F /dev/block/bootdevice/by-name/userdata

After that:

  • reboot recovery
  • remount /data
  • verify that it can actually hold structure again

If only lost+found appears at first, that is not failure. That is a fresh ext4 volume breathing for the first time.

III. Name the Loop Correctly

Formatting /data was never the end of the problem.

The real issue was first boot.

If Lineage boots and re-encrypts /data before the stack is prepared, recovery falls blind again.

That turned the rule into something very strict:

forced encryption had to be handled before normal first-boot stability could be trusted.

IV. Use DFE for What It Actually Is

Disable Force Encryption package was not optional decoration. It was structural.

Its role:

  • patch fstab behavior
  • strip forceencrypt logic
  • prevent Lineage from sealing /data back up immediately

This is where a lot of NetHunter installs fail while looking “almost complete.”

Official NetHunter install guidance points in the same direction: Installing Kali NetHunter.

V. Sideload When Storage Lies

When /data cannot be trusted, sideload becomes the cleaner channel.

From recovery:

adb sideload lineage.zip
adb sideload DFE.zip

Then continue with the rest of the stack as needed:

adb sideload kali-nethunter-generic-arm64.zip
adb sideload kernel-nethunter-ginkgoa16.zip
adb sideload Magisk.zip

Sideload is less elegant than dragging files into internal storage. It is also less fragile when /data is compromised.

Better Path: Root from Android, Not Recovery

One of the most important corrections in this session was realizing that the Android 16 NetHunter package already supported Magisk-based install flow.

That matters because recovery was the unstable layer.

The cleaner path became:

  1. get Lineage booting
  2. patch boot.img with Magisk
  3. flash patched boot
  4. confirm su
  5. install NetHunter as a Magisk module from Android

That workflow moves the installation away from TWRP decryption problems and into a running system where /data is properly mounted by Android itself.

The Actual Stack

Base Layer

  • Device: Redmi Note 8 (ginkgo)
  • ROM: LineageOS 23.2 / Android 16
  • Recovery: TWRP
  • Host tools: macOS + adb + fastboot

Required Components

ComponentRequired State
ROMLineageOS 23.2 (ginkgo)
AVBdisabled vbmeta
/datavalid ext4 and usable
Encryptioncontrolled / DFE path applied
Kernelginkgoa16 compatible
NetHunterA16-matched package

Signals from the Machine

SymptomMeaning
NetHunter logo then rebootkernel mismatch or AVB rejection
/data appears emptyencryption or failed mount visibility
only lost+foundfresh ext4, usually normal
AVB_MAGIC errorinvalid vbmeta path
Permission denied from suMagisk/ADB root path not actually granted

Rules Written in Burn Marks

Never

  • flash NetHunter blindly through fastboot
  • mix Android 13 assumptions with Android 16 packages
  • trust a visible zip more than an invisible kernel mismatch
  • ignore /data mount behavior
  • assume a boot logo means the kernel is “mostly right”

Always

  • match kernel to Android version
  • disable AVB for custom boot chains
  • control forced encryption early
  • verify /data is really usable
  • prefer Magisk-side install when recovery is the unstable layer

Outcome

Once the stack was corrected in the right order:

  • valid disabled vbmeta
  • rebuilt /data
  • controlled encryption
  • Android 16-compatible kernel path
  • NetHunter package aligned to the ROM

the install stopped being chaos and became procedure.

That is the shift that matters.

Not “it flashed.” Not “it booted once.”

Procedure.

Closing Note

Android modding used to be about replacing software. Now it is about negotiating policy.

Policy in this case meant:

  • AVB
  • FBE
  • mount visibility
  • boot image integrity
  • kernel compatibility

NetHunter wasn’t the villain. It was the truth serum.

It exposed every weak layer underneath it.

Appendix / Field Commands

# flash disabled vbmeta
fastboot flash vbmeta vbmeta-disabled.img
# rebuild userdata as ext4
mke2fs -t ext4 -F /dev/block/bootdevice/by-name/userdata
# sideload through recovery
adb sideload file.zip
# patch and flash Magisk boot path
adb push boot.img /sdcard/Download/boot.img
adb pull /sdcard/Download/magisk_patched*.img .
fastboot flash boot magisk_patched*.img

Pull Quotes

/data was not empty. It was behind encryption, and recovery no longer had the language to read it.`
NetHunter didn’t fail because the zip was wrong. It failed because the boot chain was still loyal to the stock world.
The real install order was not ROM, kernel, zip. It was trust, storage, then payload.

NetHunter on the Redmi Note 8 only became viable once the install was treated as a boot-chain problem instead of a zip problem. The real work was disabling AVB, rebuilding and preserving access to /data, matching the kernel to Android 16, and moving away from fragile recovery-side assumptions.

What looked like a simple bootloop was really the overlap of verified boot, forced encryption, and package mismatch. Once those layers were brought into alignment, the install path stopped being random trial and error and became a repeatable procedure.


Redmi Note 8 (ginkgo) Root + NetHunter Command Sheet

1. Boot TWRP

fastboot boot twrp.img

2. Flash disabled vbmeta if needed

fastboot flash vbmeta vbmeta-disabled.img

3. In TWRP

Do this on the phone:

  1. Wipe -> Format Data
  2. Reboot back to recovery
  3. Flash lineage-23.2-20260415-nightly-ginkgo-signed.zip
  4. Flash DFE zip if your build re-encrypts /data

4. Boot Android and patch Lineage boot with Magisk

Extract boot.img from the Lineage zip, then:

adb push boot.img /sdcard/Download/boot.img

In the Magisk app:

  1. Install
  2. Select and Patch a File
  3. Choose /sdcard/Download/boot.img

Pull patched image back:

adb pull /sdcard/Download/magisk_patched*.img .

5. Flash patched boot

adb reboot bootloader
fastboot flash boot magisk_patched*.img
fastboot reboot

6. Verify root

adb shell su -c 'id'

Expected:

uid=0(root)

7. Push NetHunter

adb push kali-nethunter-2026.1-ginkgoa16-sixteen-full.zip /sdcard/Download/nh.zip

8. Install NetHunter through Magisk

adb shell su -c 'magisk --install-module /sdcard/Download/nh.zip'

9. Reboot

adb reboot

10. Final

Open the NetHunter app and complete setup inside Android.

Flash Order Summary

  1. TWRP
  2. LineageOS
  3. DFE if needed
  4. Magisk patched boot.img
  5. NetHunter zip via Magisk

If /data breaks again

mke2fs -t ext4 -F /dev/block/bootdevice/by-name/userdata

Then go back through recovery and repeat the Lineage + DFE path before booting system.

If AVB blocks boot

fastboot flash vbmeta vbmeta-disabled.img

If Magisk says Permission denied

Open the Magisk app and set:

  • Superuser access -> Apps and ADB

Then retry:

adb shell su -c 'id'

Redmi Note 8 (ginkgo) Field Checklist

Files Ready

  • twrp.img
  • vbmeta-disabled.img
  • lineage-23.2-20260415-nightly-ginkgo-signed.zip
  • DFE.zip
  • boot.img extracted from Lineage zip
  • kali-nethunter-2026.1-ginkgoa16-sixteen-full.zip

Fastboot

fastboot boot twrp.img
fastboot flash vbmeta vbmeta-disabled.img

TWRP

  1. Wipe -> Format Data
  2. Reboot recovery
  3. Flash lineage-23.2-20260415-nightly-ginkgo-signed.zip
  4. Flash DFE.zip if needed
  5. Reboot system

Magisk

adb push boot.img /sdcard/Download/boot.img

On phone:

  1. Open Magisk
  2. Install
  3. Select and Patch a File
  4. Choose /sdcard/Download/boot.img

Back on Mac:

adb pull /sdcard/Download/magisk_patched*.img .
adb reboot bootloader
fastboot flash boot magisk_patched*.img
fastboot reboot

Verify Root

adb shell su -c 'id'

Expected:

uid=0(root)

NetHunter

adb push kali-nethunter-2026.1-ginkgoa16-sixteen-full.zip /sdcard/Download/nh.zip
adb shell su -c 'magisk --install-module /sdcard/Download/nh.zip'
adb reboot

If /data breaks

mke2fs -t ext4 -F /dev/block/bootdevice/by-name/userdata

Then:

  1. Reboot recovery
  2. Reflash Lineage
  3. Reflash DFE
  4. Boot again

If AVB blocks boot

fastboot flash vbmeta vbmeta-disabled.img

If su is denied

On phone in Magisk:

  1. Settings
  2. Superuser access -> Apps and ADB

Then retry:

adb shell su -c 'id'

Then Install from LineageOS 😎

android-platform-tools
Homebrew’s package index
Info about ginkgo | LineageOS Wiki
LineageOS Downloads
Index of /nethunter-images/current/
Get Kali | Kali Linux
Home of Kali Linux, an Advanced Penetration Testing Linux distribution used for Penetration Testing, Ethical Hacking and network security assessments.
Index of /images-nethunter/nethunter-installer/kali-daily/
Kali NetHunter App Store - Android App Repository for Penetraton Testing and Forensics
The Kali NetHunter App Store is an installable catalogue of Android applications for penetration testing and forensics. The client makes it easy to browse, install, and keep track of updates on your device.
GitHub - topjohnwu/Magisk: The Magic Mask for Android
The Magic Mask for Android. Contribute to topjohnwu/Magisk development by creating an account on GitHub.
TeamWin - TWRP
This is the Team Win website and the official home of TWRP! Here you will find the list of officially supported devices and instructions for installing TWRP on those devices.