[Galaxy Tab S2 Android Development] mcepedaj:
Hello I am trying to install either 810/815 roms into a rooted a t817t: I am getting error 7, I tried deleting asserts from META-INF/com/google/android/updater-script (This is the Edited one) But I am getting these errors, can you please help me? (Clean install / TWRP 3.2.3-0)

I:Set page: 'flash_done'
I:operation_end - status=1
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'install'
I:Set page: 'flash_confirm'
I:Set page: 'flash_zip'
I:operation_start: 'Flashing'
Installing zip file '/sdcard/lineage-15.1-20190130-UNOFFICIAL-gts210ltexx.zip'
Checking for Digest file...
Skipping Digest check: no Digest file found
I:Update binary zip
I:Zip does not contain SELinux file_contexts file in its root.
I:Legacy property environment not used in updater.
selinux_android_file_context: Error getting file context handle (No such file or directory)
Warning: No file_contextsTarget: amsung/gts210ltexx/gts210lte:7.0/NRD90M/T815XXU2CRH1:user/release-keysTarget: amsung/gts210ltexx/gts210lte:7.0/NRD90M/T815XXU2CRH1:user/release-keys
Extracted file "/tmp/install/bin/backuptool.functions"
Extracted file "/tmp/install/bin/backuptool.sh"
Extracted 2 file(s)
detected filesystem ext4 for /dev/block/platform/15540000.dwmmc0/by-name/SYSTEM

detected filesystem ext4 for /dev/block/platform/15540000.dwmmc0/by-name/SYSTEMabout to run program [/tmp/install/bin/backuptool.sh] with 2 args
run_program: child exited with status 127
Patching system image unconditionally...
Patching system image unconditionally...performing update
blockimg version is 4
maximum stash entries 0
using existing stash /cache/recovery/c5e35e48cef96d951351c8d8095e67a91fb98f18/
erasing 543832 blocks
BLKDISCARD ioctl failed: Invalid argument
failed to execute command [erase 36,33475,65024,93381,97792,131586,163328,197122,228864,262658,294400,328194,359936,360962,392704,393730,425472,426498,458240,459266,491008,492034,523776,524802,556544,557570,589312,590338,622080,623106,654848,655874,687616,688642,720384,721410,753152]
script aborted: E1001: Failed to update system image.
E1001: Failed to update system image.error: 1001
Updater process ended with ERROR: 7
I:Install took 0 second(s).
Error installing zip file '/sdcard/lineage-15.1-20190130-UNOFFICIAL-gts210ltexx.zip'
Updating partition details...
I:Data backup size is 0MB, free: 23896MB.
Failed to mount '/hidden' (Invalid argument)
I:Actual block device: '', current file system: 'ext4'
I:Unable to mount '/external_sd'
I:Actual block device: '', current file system: 'auto'
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'auto'
...done
I:Set page: 'flash_done'
I:operation_end - status=1
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'advanced'
I:Set page: 'copylog'
I:Set page: 'action_page'
I:operation_start: 'Copy Log'
I:Copying file /tmp/recovery.log to /data/media/0/recovery.log
Copied recovery log to /data/media/0/recovery.log.
I:Set page: 'action_complete'
I:operation_end - status=0
I:TWFunc::Set_Brightness: Setting brightness control to 5
I:TWFunc::Set_Brightness: Setting brightness control to 0
I:TWFunc::Set_Brightness: Setting brightness control to 162
I:TWFunc::Set_Brightness: Setting brightness control to 5
I:TWFunc::Set_Brightness: Setting brightness control to 0
I:TWFunc::Set_Brightness: Setting brightness control to 162
I:Set overlay: ''
I:Set page: 'clear_vars'
I:Set page: 'advanced'
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'install'
I:Set page: 'flash_confirm'
I:Set page: 'flash_zip'
I:operation_start: 'Flashing'
Installing zip file '/sdcard/lineage-15.1-20190130-UNOFFICIAL-gts210ltexx edit.zip'
Checking for Digest file...
Skipping Digest check: no Digest file found
I:Update binary zip
I:Zip does not contain SELinux file_contexts file in its root.
I:Legacy property environment not used in updater.
selinux_android_file_context: Error getting file context handle (No such file or directory)
Warning: No file_contextsTarget: amsung/gts210ltexx/gts210lte:7.0/NRD90M/T815XXU2CRH1:user/release-keysTarget: amsung/gts210ltexx/gts210lte:7.0/NRD90M/T815XXU2CRH1:user/release-keys
Extracted file "/tmp/install/bin/backuptool.functions"
Extracted file "/tmp/install/bin/backuptool.sh"
Extracted 2 file(s)
detected filesystem ext4 for /dev/block/platform/15540000.dwmmc0/by-name/SYSTEM

detected filesystem ext4 for /dev/block/platform/15540000.dwmmc0/by-name/SYSTEMabout to run program [/tmp/install/bin/backuptool.sh] with 2 args
run_program: child exited with status 127
Patching system image unconditionally...
Patching system image unconditionally...performing update
blockimg version is 4
maximum stash entries 0
using existing stash /cache/recovery/c5e35e48cef96d951351c8d8095e67a91fb98f18/
erasing 543832 blocks
BLKDISCARD ioctl failed: Invalid argument
failed to execute command [erase 36,33475,65024,93381,97792,131586,163328,197122,228864,262658,294400,328194,359936,360962,392704,393730,425472,426498,458240,459266,491008,492034,523776,524802,556544,557570,589312,590338,622080,623106,654848,655874,687616,688642,720384,721410,753152]
script aborted: E1001: Failed to update system image.
E1001: Failed to update system image.error: 1001
Updater process ended with ERROR: 7
I:Install took 0 second(s).
Error installing zip file '/sdcard/lineage-15.1-20190130-UNOFFICIAL-gts210ltexx edit.zip'
Updating partition details...
I:Data backup size is 0MB, free: 23892MB.
Failed to mount '/hidden' (Invalid argument)
I:Actual block device: '', current file system: 'ext4'
I:Unable to mount '/external_sd'
I:Actual block device: '', current file system: 'auto'
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'auto'
...done
I:Set page: 'flash_done'
I:operation_end - status=1
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'install'
I:Set page: 'flash_confirm'
I:Set page: 'flash_zip'
I:operation_start: 'Flashing'
Installing zip file '/sdcard/lineage-15.1-20190130-UNOFFICIAL-gts210ltexx edit.zip'
Checking for Digest file...
Skipping Digest check: no Digest file found
I:Update binary zip
I:Zip does not contain SELinux file_contexts file in its root.
I:Legacy property environment not used in updater.
selinux_android_file_context: Error getting file context handle (No such file or directory)
Warning: No file_contextsTarget: amsung/gts210ltexx/gts210lte:7.0/NRD90M/T815XXU2CRH1:user/release-keysTarget: amsung/gts210ltexx/gts210lte:7.0/NRD90M/T815XXU2CRH1:user/release-keys
Extracted file "/tmp/install/bin/backuptool.functions"
Extracted file "/tmp/install/bin/backuptool.sh"
Extracted 2 file(s)
detected filesystem ext4 for /dev/block/platform/15540000.dwmmc0/by-name/SYSTEM

detected filesystem ext4 for /dev/block/platform/15540000.dwmmc0/by-name/SYSTEMabout to run program [/tmp/install/bin/backuptool.sh] with 2 args
run_program: child exited with status 127
Patching system image unconditionally...
Patching system image unconditionally...performing update
blockimg version is 4
maximum stash entries 0
using existing stash /cache/recovery/c5e35e48cef96d951351c8d8095e67a91fb98f18/
erasing 543832 blocks
BLKDISCARD ioctl failed: Invalid argument
failed to execute command [erase 36,33475,65024,93381,97792,131586,163328,197122,228864,262658,294400,328194,359936,360962,392704,393730,425472,426498,458240,459266,491008,492034,523776,524802,556544,557570,589312,590338,622080,623106,654848,655874,687616,688642,720384,721410,753152]
script aborted: E1001: Failed to update system image.
E1001: Failed to update system image.error: 1001
Updater process ended with ERROR: 7
I:Install took 0 second(s).
Error installing zip file '/sdcard/lineage-15.1-20190130-UNOFFICIAL-gts210ltexx edit.zip'
Updating partition details...
I:Data backup size is 0MB, free: 23892MB.
Failed to mount '/hidden' (Invalid argument)
I:Actual block device: '', current file system: 'ext4'
I:Unable to mount '/external_sd'
I:Actual block device: '', current file system: 'auto'
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'auto'
...done