[Fire HD 8 and HD 10 Q&A, Help & Troubleshooting] hurddude:
So I have tried to root this device for about 5 hours now and I am at the end of my rope... I have downloaded and used the tool provided by rootjunkie to root this device. I get to the point where it tried to inject the root and this is the result of that.... but the read out is telling me that the changes trying to be made to the SU is that the operation is not permitted.

Will post CMD prompt below..

ANY help would be lovely, as my kindle now has supersu but it says my binary needs to be updated and when I use root check it shows I am not rooted... Thanks for the help in advance from a noobie.

The following is in my CMD prompt:

[*] NOTE this will not work unless your fastboot drivers are installed[*] see option 1 ADB Driver install.[*] Once the screen is black and says fastboot in the corner[*] press and key to continue the script.

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< waiting for device >

...

(bootloader) APPEND KERNEL CMDLINE

OKAY [ 0.010s]

finished. total time: 0.010s

resuming boot...

OKAY [ -0.000s]

finished. total time: -0.000s

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[*] your device is rebooting and will inject root files.

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remount succeeded

2374 KB/s (170232 bytes in 0.070s)

1 KB/s (1976 bytes in 1.000s)

3679 KB/s (75364 bytes in 0.020s)

3453 KB/s (5904943 bytes in 1.670s)

1463 KB/s (29972 bytes in 0.020s)

mkdir failed for /system/app/SuperSU, File exists

mkdir failed for /system/bin/.ext, File exists

cp: /system/xbin/su: Operation not permitted

Unable to chmod /system/xbin/su: Operation not permitted

chcon: Could not label /system/xbin/su with ubject_r:system_file:s0: Operati

on not permitted

cp: /system/xbin/daemonsu: Text file busy

cp: /system/xbin/supolicy: Operation not permitted

Unable to chmod /system/xbin/supolicy: Operation not permitted

chcon: Could not label /system/xbin/supolicy with ubject_r:system_file:s0: O

peration not permitted

cp: /system/bin/app_process32_original: Text file busy

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[*] Once the screen is black and says fastboot in the corner[*] press and key to continue the script.

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...

(bootloader) APPEND KERNEL CMDLINE

OKAY [ 0.010s]

finished. total time: 0.010s

resuming boot...

OKAY [ 0.000s]

finished. total time: 0.000s

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[*] your device is rebooting and will finish the root process.

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remount succeeded

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[*] one last reboot to finish process

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[*] process finished now just wait for your device to fully boot up[*] this will take some time if you are on the Optimizing system screen.[*] NOTE now that you have root please block ota updates option 4[*] so that you can keep it safe.

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Press any key to continue . . .[*] RootJunky OUT

hit ENTER to return to start: