This bug occurred for me with a fresh installation of Ubuntu 19.04.
I created a new installation of Ubuntu 19.04 on a empty disk and checked the
box to encrypt the installation. After the installation I tried to change the
password and got locked out.
This is the output of sudo cryptsetup luksDump /dev/sda3 after the
failed attempt to change my password:
LUKS header information
Version: 2
Epoch: 4
Metadata area: 16384 [bytes]
Keyslots area: 16744448 [bytes]
UUID: 233e3965-3d97-4619-969e-ab9ef9b379d8
Label: (no label)
Subsystem: (no subsystem)
Flags: (no flags)
Data segments:
0: crypt
offset: 16777216 [bytes]
length: (whole device)
cipher: aes-xts-plain64
sector: 512 [bytes]
Keyslots:
Tokens:
Digests:
0: pbkdf2
Hash: sha256
Iterations: 37406
Salt: ec 30 aa 1b 97 ef d1 a5 fb b4 1f ba 58 a9 f6 6d
e9 d8 c4 73 b4 1b b9 c0 52 ff bf 2f e9 93 d8 47
Digest: f3 dd bb 32 f3 69 45 26 76 86 9a c4 4c d4 41 d4
67 bc f1 10 b3 65 87 d6 3b 51 1d 52 f1 d6 1d 9f
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https://bugs.launchpad.net/bugs/1790979
Title:
Unable to change disk decryption passphrase
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