diff options
Diffstat (limited to 'man/crypttab.xml')
| -rw-r--r-- | man/crypttab.xml | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/man/crypttab.xml b/man/crypttab.xml index 3e249ad23e..d4ff760adc 100644 --- a/man/crypttab.xml +++ b/man/crypttab.xml @@ -146,6 +146,30 @@ </varlistentry> <varlistentry> + <term><option>offset=</option></term> + + <listitem><para>Start offset in the backend device, in 512-byte sectors. + This option is only relevant for plain devices. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><option>skip=</option></term> + + <listitem><para>How many 512-byte sectors of the encrypted data to skip + at the beginning. This is different from the <option>--offset</option> + option with respect to the sector numbers used in initialization vector + (IV) calculation. Using <option>--offset</option> will shift the IV + calculation by the same negative amount. Hence, if <option>--offset n</option>, + sector n will get a sector number of 0 for the IV calculation. + Using <option>--skip</option> causes sector n to also be the first + sector of the mapped device, but with its number for IV generation is n.</para> + + <para>This option is only relevant for plain devices.</para> + </listitem> + </varlistentry> + + <varlistentry> <term><option>keyfile-offset=</option></term> <listitem><para>Specifies the number of bytes to skip at the |