This article details the issue of encountering an 'Unsupported/Unknown image format' error when installing Magisk on an x86_64 emulator, along with potential solutions.

I've been experiencing a persistent issue while attempting to install Magisk (version 29.0 and 27.0) on an x86_64 emulator (Pixel 4, API 34). After following the standard procedures for Magisk installation on emulators, including rooting, remounting, rebooting, and pushing the modified ramdisk.img, I receive an 'Unsupported/Unknown image format' error during the patching process. Additionally, I have tried emulators with API 33 and encountered the same issue. I have tested on two separate Ubuntu PCs, ruling out inconsistencies in my local environment.

Here is a breakdown of the steps I have taken:

* **Emulator setup:** Pixel 4 emulator with API 34, writable system, and permissive SELinux
* **Magisk versions:** 29.0 and 27.0
* **Device platform:** x86_64
* **Procedure:**
* adb root
* adb remount
* adb reboot
* adb root
* adb install app-debuk.apk
* adb push ramdisk.img /sdcard/Downloads

I have reviewed the logs from both Magisk and the emulator, and they do not provide any further insights into the cause of this error.

Attached is the full Magisk log file for further analysis. I hope that by sharing my experience, I can contribute to finding a solution or workaround for this issue.

[Magisk log file](https://github.com/user-attachments/files/20665985/magisk_log_2025-06-10T08.49.00.log)

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