[Google Pixel 2 XL Guides, News, & Discussion] matz_92:
Hi guys,

Someone could tell me why this method does not work for me?

I'm working on a single-board computer i.MX7D with Android Things 1.0.8. I've correctly installed MagiskManager and it has repacked the new image patched_boot.img. Next I have flashed the new image into boot_a and boot_b partitions using fastboot:

fastboot flash boot_a patched_boot.img

target reported max download size of 419430400 bytes
sending 'boot_a' (14720 KB)...
OKAY [ 0.459s]
writing 'boot_a'...
OKAY [ 0.702s]
finished. total time: 1.161s

fastboot flash boot_b patched_boot.img

target reported max download size of 419430400 bytes
sending 'boot_b' (14720 KB)...
OKAY [ 0.463s]
writing 'boot_b'...
OKAY [ 0.702s]
finished. total time: 1.164s

When I reboot the system Magisk shows "Magisk is not installed" yet.

This is the install log:

- Copying image to cache
- Device platform: armeabi-v7a
- Existing zip found
- Extracting files
- Unpacking boot image
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
Parsing boot image: [/data/user_de/0/com.topjohnwu.magisk/install/boot.img]
HEADER_VER [0]
KERNEL_SZ [9741613]
RAMDISK_SZ [5083265]
SECOND_SZ [0]
EXTRA_SZ [0]
RECOV_DTBO_SZ [0]
OS_VERSION [8.1.0]
PATCH_LEVEL [2018-10]
PAGESIZE [2048]
NAME []
CMDLINE [init=/init androidboot.hardware=imx7d vt.global_cursor_default=0 consoleblank=0 rootwait ro earlyprintk loglevel=7 console=ttymxc4,115200 androidboot.console=ttymxc4 buildvariant=userdebug]
CHECKSUM [3db586c24cd1a96871cf6bec185525a1f83a4249]
Invalid DTB detection at 0x1b31: size (16793940) > remaining (9734652)
DTB [45509]
KERNEL_FMT [raw]
RAMDISK_FMT [gzip]
- Checking ramdisk status
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
Loading cpio: [ramdisk.cpio]
- Stock boot image detected
- Backing up stock boot image
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
Compressing to [stock_boot_722068a856e0e11321dbd6254b18f03fd754e3e9.img.gz]
- Patching ramdisk
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
Loading cpio: [ramdisk.cpio]
Add entry [init] (0750)
Patch with flag KEEPVERITY=[true] KEEPFORCEENCRYPT=[false]
Loading cpio: [ramdisk.cpio.orig]
Backup mismatch entry: [init] -> [.backup/init]
Add entry [.backup/.magisk] (0000)
Dump cpio: [ramdisk.cpio]
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
- Repacking boot image
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
Parsing boot image: [/data/user_de/0/com.topjohnwu.magisk/install/boot.img]
HEADER_VER [0]
KERNEL_SZ [9741613]
RAMDISK_SZ [5083265]
SECOND_SZ [0]
EXTRA_SZ [0]
RECOV_DTBO_SZ [0]
OS_VERSION [8.1.0]
PATCH_LEVEL [2018-10]
PAGESIZE [2048]
NAME []
CMDLINE [init=/init androidboot.hardware=imx7d vt.global_cursor_default=0 consoleblank=0 rootwait ro earlyprintk loglevel=7 console=ttymxc4,115200 androidboot.console=ttymxc4 buildvariant=userdebug]
CHECKSUM [3db586c24cd1a96871cf6bec185525a1f83a4249]
Invalid DTB detection at 0x1b31: size (16793940) > remaining (9734652)
DTB [45509]
KERNEL_FMT [raw]
RAMDISK_FMT [gzip]
Repack to boot image: [new-boot.img]
HEADER_VER [0]
KERNEL_SZ [9741613]
RAMDISK_SZ [5328429]
SECOND_SZ [0]
EXTRA_SZ [0]
RECOV_DTBO_SZ [0]
OS_VERSION [8.1.0]
PATCH_LEVEL [2018-10]
PAGESIZE [2048]
NAME []
CMDLINE [init=/init androidboot.hardware=imx7d vt.global_cursor_default=0 consoleblank=0 rootwait ro earlyprintk loglevel=7 console=ttymxc4,115200 androidboot.console=ttymxc4 buildvariant=userdebug]
CHECKSUM [76fc9c4cf236a4b64329fbc2d9fffbd129c41d65]
MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool
Cleaning up...

****************************
Patched image is placed in
/storage/emulated/0/Download/patched_boot.img
****************************
- All done!

Thanks in advance!!