systemd-cryptsetup-generator(8)
NAME
systemd-cryptsetup-generator - Unit generator for /etc/crypttab
SYNOPSIS
/lib/systemd/system-generators/systemd-cryptsetup-generator
DESCRIPTION
systemd-cryptsetup-generator is a generator that translates /etc/crypttab into native systemd units early at boot and when configuration of the system manager is reloaded. This will create systemd-cryptsetup@.service(8) units as necessary. systemd-cryptsetup-generator implements systemd.generator(7).
KERNEL COMMAND LINE
systemd-cryptsetup-generator understands the following kernel command
line parameters:
luks=, rd.luks=
Takes a boolean argument. Defaults to "yes". If "no", disables the
generator entirely. rd.luks= is honored only by initial RAM disk
(initrd) while luks= is honored by both the main system and the
initrd.
luks.crypttab=, rd.luks.crypttab=
Takes a boolean argument. Defaults to "yes". If "no", causes the
generator to ignore any devices configured in /etc/crypttab
(luks.uuid= will still work however). rd.luks.crypttab= is honored
only by initial RAM disk (initrd) while luks.crypttab= is honored
by both the main system and the initrd.
luks.uuid=, rd.luks.uuid=
Takes a LUKS superblock UUID as argument. This will activate the
specified device as part of the boot process as if it was listed in
/etc/crypttab. This option may be specified more than once in order
to set up multiple devices. rd.luks.uuid= is honored only by
initial RAM disk (initrd) while luks.uuid= is honored by both the
main system and the initrd.
If /etc/crypttab contains entries with the same UUID, then the
name, keyfile and options specified there will be used. Otherwise,
the device will have the name "luks-UUID".
If /etc/crypttab exists, only those UUIDs specified on the kernel
command line will be activated in the initrd or the real root.
luks.name=, rd.luks.name=
Takes a LUKS super block UUID followed by an "=" and a name. This
implies rd.luks.uuid= or luks.uuid= and will additionally make the
LUKS device given by the UUID appear under the provided name.
rd.luks.name= is honored only by initial RAM disk (initrd) while
luks.name= is honored by both the main system and the initrd.
luks.options=, rd.luks.options=
Takes a LUKS super block UUID followed by an "=" and a string of
options separated by commas as argument. This will override the
options for the given UUID.
If only a list of options, without an UUID, is specified, they
apply to any UUIDs not specified elsewhere, and without an entry in
/etc/crypttab.
rd.luks.options= is honored only by initial RAM disk (initrd) while
luks.options= is honored by both the main system and the initrd.
luks.key=, rd.luks.key=
Takes a password file name as argument or a LUKS super block UUID
followed by a "=" and a password file name.
For those entries specified with rd.luks.uuid= or luks.uuid=, the
password file will be set to the one specified by rd.luks.key= or
luks.key= of the corresponding UUID, or the password file that was
specified without a UUID.
rd.luks.key= is honored only by initial RAM disk (initrd) while
luks.key= is honored by both the main system and the initrd.
SEE ALSO
systemd(1), crypttab(5), systemd-cryptsetup@.service(8), cryptsetup(8), systemd-fstab-generator(8)
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