[Magisk] weareinwarwithbugs:
When making patch of boot.img then what should be taken to a notice if all is good & vice versa? For instance, I got my log as below and with that patch I get stuck at booting up the device:

- Device platform: armeabi-v7a
- Downloading zip
... 0%
- Copying image to cache
- Boot image is signed with AVB 1.0
1022+1 records in
1022+1 records out
1047368 bytes transferred in 0.025 secs (41894720 bytes/sec)
- Unpacking boot image
Parsing boot image: [/data/user_de/0/com.topjohnwu.magisk/install/boot.img]
HEADER_VER [0]
KERNEL_SZ [14885783]
RAMDISK_SZ [1029262]
SECOND_SZ [0]
EXTRA_SZ [0]
RECOV_DTBO_SZ [0]
DTB [0]
OS_VERSION [8.1.0]
OS_PATCH_LEVEL [2019-01]
PAGESIZE [2048]
NAME []
CMDLINE [console=ttyHSL0,115200,n8 androidboot.console=ttyHSL0 androidboot.hardware=qcom androidboot.memcg=true user_debug=30 msm_rtb.filter=0x237 ehci-hcd.park=3 androidboot.bootdevice=7824900.sdhci lpm_levels.sleep_disabled=1 earlycon=msm_hsl_uart,0x78B0000 buildvariant=user]
CHECKSUM [5f606c4443b25e060cf77c9d9efe84b2e433c31c]
KERNEL_DTB [5549959]
KERNEL_FMT [raw]
RAMDISK_FMT [gzip]
Kernel is uncompressed or not a supported compressed type!
- Checking ramdisk status
Loading cpio: [ramdisk.cpio]
- Stock boot image detected
- Backing up stock boot image
- Patching ramdisk
Loading cpio: [ramdisk.cpio]
Add entry [init] (0750)
Patch with flag KEEPVERITY=[false] KEEPFORCEENCRYPT=[true]
Remove [verity_key]
Loading cpio: [ramdisk.cpio.orig]
Backup mismatch entry: [init] -> [.backup/init]
Backup missing entry: [verity_key] -> [.backup/verity_key]
Create directory [.backup] (0000)
Add entry [.backup/.magisk] (0000)
Dump cpio: [ramdisk.cpio]
Loading dtbs from [kernel_dtb]
Found fstab in dtb.0000
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0001
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0002
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0003
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0004
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0005
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0006
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0007
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0008
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0009
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0010
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0011
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0012
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0013
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0014
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0015
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0016
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0017
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0018
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0019
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0020
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0021
Found block [vendor] in fstab
Found block [system] in fstab
Found fstab in dtb.0022
Found block [vendor] in fstab
Found block [system] in fstab
- Repacking boot image
Parsing boot image: [/data/user_de/0/com.topjohnwu.magisk/install/boot.img]
HEADER_VER [0]
KERNEL_SZ [14885783]
RAMDISK_SZ [1029262]
SECOND_SZ [0]
EXTRA_SZ [0]
RECOV_DTBO_SZ [0]
DTB [0]
OS_VERSION [8.1.0]
OS_PATCH_LEVEL [2019-01]
PAGESIZE [2048]
NAME []
CMDLINE [console=ttyHSL0,115200,n8 androidboot.console=ttyHSL0 androidboot.hardware=qcom androidboot.memcg=true user_debug=30 msm_rtb.filter=0x237 ehci-hcd.park=3 androidboot.bootdevice=7824900.sdhci lpm_levels.sleep_disabled=1 earlycon=msm_hsl_uart,0x78B0000 buildvariant=user]
CHECKSUM [5f606c4443b25e060cf77c9d9efe84b2e433c31c]
KERNEL_DTB [5549959]
KERNEL_FMT [raw]
RAMDISK_FMT [gzip]
Repack to boot image: [new-boot.img]
HEADER_VER [0]
KERNEL_SZ [14885783]
RAMDISK_SZ [1259208]
SECOND_SZ [0]
EXTRA_SZ [0]
RECOV_DTBO_SZ [0]
DTB [0]
OS_VERSION [8.1.0]
OS_PATCH_LEVEL [2019-01]
PAGESIZE [2048]
NAME []
CMDLINE [console=ttyHSL0,115200,n8 androidboot.console=ttyHSL0 androidboot.hardware=qcom androidboot.memcg=true user_debug=30 msm_rtb.filter=0x237 ehci-hcd.park=3 androidboot.bootdevice=7824900.sdhci lpm_levels.sleep_disabled=1 earlycon=msm_hsl_uart,0x78B0000 buildvariant=user]
CHECKSUM [93ed2a9fa31f48786150a0132ae81a14e2632016]
- Signing boot image with test keys

****************************
Output file is placed in
/storage/emulated/0/Download/magisk_patched.img
****************************
- All done!

(In my case, could it be a solution to try to extract boot.img from current running system instead of stock rom boot.img that I downloaded from manufacturer site? As for the reason that there were a few ota updates I made before replacing boot.img with patched one that I made out from the stock rom boot.img instead of extracting from system after updates.)