Below error appears in Lubuntu 18.04 LTS
bd_crypto_luks_open_blob called, but not implemented
when opening Luks Encrypted volume using PCManFM, the Lubuntu File Manager.
To overcome this error, open a terminal window and enter the commands below:
$ sudo apt install libblockdev-crypto2 <enter>
$ systemctl restart udisks2.service <enter>
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