UHD discs won’t decrypt on Arm64 (linux)

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mtotheb
Posts: 37
Joined: Wed Jan 27, 2021 12:18 pm

UHD discs won’t decrypt on Arm64 (linux)

Post by mtotheb »

As the title says the software works up to the point where it has to decrypt the disc and then errors out with a Key not being found.
Supplying a keydb.cfg also doesn’t get it working and that’s why I assume it’s a bug on the software side of things. I‘m also not the only one who’s encountered this issue as per some other forums.

Does anybody have an idea how we can fix this bug but it’s probably something only Mike can fix with an update.

With Windows X86 the same Disc works just fine.
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dcoke22
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Joined: Wed Jul 22, 2020 11:25 pm

Re: UHD discs won’t decrypt on Arm64 (linux)

Post by dcoke22 »

What happens if you copy the _private_data.tar file from your Windows box to the appropriate place on your linux box? Does it work then?
mtotheb
Posts: 37
Joined: Wed Jan 27, 2021 12:18 pm

Re: UHD discs won’t decrypt on Arm64 (linux)

Post by mtotheb »

dcoke22 wrote:
Fri Jun 14, 2024 6:58 pm
_private_data.tar file
when and where would I find it?
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Woodstock
Posts: 10332
Joined: Sun Jul 24, 2011 11:21 pm

Re: UHD discs won’t decrypt on Arm64 (linux)

Post by Woodstock »

_private_data.tar is usually in your MakeMKV data directory (not the program directory) on Windows computers.
dcoke22
Posts: 3103
Joined: Wed Jul 22, 2020 11:25 pm

Re: UHD discs won’t decrypt on Arm64 (linux)

Post by dcoke22 »

The data directory is listed on the General tab of MakeMKV preferences.

Furthermore, out of curiosity, on your linux box, is that directory readable & writeable by MakeMKV?

The aforementioned .tar file is where MakeMKV stores hashed keys it downloads to decrypt UHDs.
Billycar11
Posts: 4349
Joined: Sun Aug 24, 2014 5:49 am

Re: UHD discs won’t decrypt on Arm64 (linux)

Post by Billycar11 »

post the log there is also a bug on linux with some mk fw that you need to go to de fw
one example is bu40N 1.03mk on linux wont work but bu40n 1.00 de will
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