Путеводитель по Руководству Linux
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   cryptsetup    ( 8 )

управлять обычными dm-crypt и зашифрованными томами LUKS (manage plain dm-crypt and LUKS encrypted volumes)
  Name  |  Synopsis  |  Description  |  Plain dm-crypt or luks?  |  Warning  |  Basic actions  |  Plain mode  |  Luks extension  |  Loop-aes extension  |  Tcrypt (truecrypt-compatible and veracrypt) extension  |  Bitlk (windows bitlocker-compatible) extension (experimental)  |  Miscellaneous  |  Options  |  Examples  |    Return value    |  Notes on passphrase processing for plain mode  |  Notes on passphrase processing for luks  |  Incoherent behavior for invalid passphrases/keys  |  Notes on supported ciphers, modes, hashes and key sizes  |  Notes on passphrases  |  Notes on random number generators  |  Authenticated disk encryption (experimental)  |  Notes on loopback device use  |  Luks2 header locking  |  Deprecated actions  |  Reporting bugs  |

Возвращаемое значение (Return value)

Cryptsetup returns 0 on success and a non-zero value on error.

Error codes are: 1 wrong parameters, 2 no permission (bad passphrase), 3 out of memory, 4 wrong device specified, 5 device already exists or device is busy.