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I unpacked boot.img of Android M for Nexus 6 using Android Image Kitchen (AIK) and then repacked it without any changes, then flashed the phone with the new boot.img. Ideally it should work but somehow the phone doesn't boots showing boot error (img).

Is anyone facing the same issue?

Can anyone suggest an alternative for it?

(For those who think why I am using the image without altering, well I made some changes in the boot.img which did not work, so while debugging I found that even if I do not make any changes to the img file, it doesn't works. Couldn't figure out the reason.)

I am using fastboot on mac to flash Nexus 6.

I have done this before for Android L but never faced this issue.

Thanks in advance.

Edit:

I was able to flash the phone with custom boot.img (made img by compiling the mkbootimg and unmkbootimg binaries) but android M is behaving a little weird as even after editing default.prop the phone did not respond to the change though it had the changes.

Any idea about this ?

divyum
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1 Answers1

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I have the same problem with Nexus 6. I think, I've localized this problem.

I downloaded factory image(shamu-mra58r). After flashing my Nexus 6, I tried to some change in ramdisk. Took stock boot.img, with the unmkbootimg got ramdisk.cpio.gz and kernel. If I unpacked from ramdisk.cpio.gz to ramdisk.cpio and packed back to ramdisk.cpio.gz and after compiled boot.img by mkbootimg - phone worked. If I unpacked from ramdisk.cpio.gz to ramdisk(without any changes). Repacked to ramdisk.cpio.gz and after compiled boot.img by mkbootimg - phone didn't worked.

So there is problem in unpacking/repacking ramdisk. I don't know how to solve this problem.

Mike Riordan
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