= cryptsetup-fvault2Dump(8)
:doctype: manpage
:manmanual: Maintenance Commands
:mansource: cryptsetup {release-version}
:man-linkstyle: pass:[blue R < >]
:COMMON_OPTIONS:
:ACTION_BITLKDUMP:

== Name

cryptsetup-fvault2Dump - dump the header information of a FVAULT2 (FileVault2 compatible) device

== SYNOPSIS

*cryptsetup _fvault2Dump_ [<options>] <device>*

== DESCRIPTION

Dump the header information of a FVAULT2 (FileVault2 compatible) device.

If the --dump-volume-key option is used, the FVAULT2 device volume key
is dumped instead of header information. You have to provide password
or keyfile to dump volume key.

Beware that the volume key can be used to decrypt the data stored in
the container without a passphrase.
This means that if the volume key is compromised, the whole device has
to be erased to prevent further access. Use this option carefully.

*<options>* can be [--dump-volume-key, --volume-key-file, --key-file,
--keyfile-offset, --keyfile-size, --timeout].

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