[Magisk] PWn3R:
Yes, I even downloaded a new copy of the OTA and extracted the boot image to be sure.

I flashed a fresh copy from fastboot and copied it to the SD card.

Edit: I got it to run on another device, but it spit out a 14mb image (should be 64mb). Logs below.

https://drive.google.com/file/d/1O8c2c--YPwqQIp66410VMs2vh6h98QCO/view?usp=drivesdk

- Copying image to cache - Device platform: arm64-v8a - Existing zip found - 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***** [1] KERNEL_SZ****** [14780612] RAMDISK_SZ***** [0] SECOND_SZ****** [0] EXTRA_SZ******* [0] RECOV_DTBO_SZ** [0] OS_VERSION***** [9.0.0] PATCH_LEVEL**** [2018-11] PAGESIZE******* [4096] NAME*********** [] CMDLINE******** [console=ttyMSM0,115200n8 earlycon=msm_geni_serial,0xA84000 androidboot.hardware=qcom androidboot.console=ttyMSM0 video=vfb:640x400,bpp=32,memsize=3072000 msm_rtb.filter=0x237 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 service_locator.enable=1 swiotlb=2048 androidboot.configfs=true firmware_class.path=/vendor/firmware_mnt/image loop.max_part=7 buildvariant=user] CHECKSUM******* [97de6f1ed35852071cc929b627011029745e7ce1] DTB************ [1228590] KERNEL_FMT***** [gzip] RAMDISK_FMT**** [raw] - Checking ramdisk status MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool - Stock boot image detected - Backing up stock boot image MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool Compressing to [stock_boot_f85f49212a1614b3c45113510d15b0dc896b7b2e.img.gz] cp: can't stat 'ramdisk.cpio': No such file or directory - Patching ramdisk MagiskBoot v18.0(18000) (by topjohnwu) - Boot Image Modification Tool Add entry [init] (0750) Patch with flag KEEPVERITY=[true] KEEPFORCEENCRYPT=[true] Segmentation fault 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 Patch @ 01BFCCC6 [736B69705F696E697472616D667300]->[77616E745F696E697472616D667300] - 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***** [1] KERNEL_SZ****** [14780612] RAMDISK_SZ***** [0] SECOND_SZ****** [0] EXTRA_SZ******* [0] RECOV_DTBO_SZ** [0] OS_VERSION***** [9.0.0] PATCH_LEVEL**** [2018-11] PAGESIZE******* [4096] NAME*********** [] CMDLINE******** [console=ttyMSM0,115200n8 earlycon=msm_geni_serial,0xA84000 androidboot.hardware=qcom androidboot.console=ttyMSM0 video=vfb:640x400,bpp=32,memsize=3072000 msm_rtb.filter=0x237 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 service_locator.enable=1 swiotlb=2048 androidboot.configfs=true firmware_class.path=/vendor/firmware_mnt/image loop.max_part=7 buildvariant=user] CHECKSUM******* [97de6f1ed35852071cc929b627011029745e7ce1] DTB************ [1228590] KERNEL_FMT***** [gzip] RAMDISK_FMT**** [raw] Repack to boot image: [new-boot.img] HEADER_VER***** [1] KERNEL_SZ****** [14782728] RAMDISK_SZ***** [0] SECOND_SZ****** [0] EXTRA_SZ******* [0] RECOV_DTBO_SZ** [0] OS_VERSION***** [9.0.0] PATCH_LEVEL**** [2018-11] PAGESIZE******* [4096] NAME*********** [] CMDLINE******** [console=ttyMSM0,115200n8 earlycon=msm_geni_serial,0xA84000 androidboot.hardware=qcom androidboot.console=ttyMSM0 video=vfb:640x400,bpp=32,memsize=3072000 msm_rtb.filter=0x237 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 service_locator.enable=1 swiotlb=2048 androidboot.configfs=true firmware_class.path=/vendor/firmware_mnt/image loop.max_part=7 buildvariant=user] CHECKSUM******* [f7ccc38136e14bb440dd4034682c771792b93b94] 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!