/etc/crypttab

# Static information about the filesystems.
# See fstab(5) for details.

# <file system> <dir> <type> <options> <dump> <pass>
[root@manjaro-mate /]# cat /etc/crypttab
# Configuration for encrypted block devices.
# See crypttab(5) for details.

# NOTE: Do not list your root (/) partition here, it must be set up
#       beforehand by the initramfs (/etc/mkinitcpio.conf).

# <name>       <device>                                     <password>              <options>
# home         UUID=b8ad5c18-f445-495d-9095-c9ec4f9d2f37    /etc/mypassword1
# data1        /dev/sda3                                    /etc/mypassword2
# data2        /dev/sda5                                    /etc/cryptfs.key
# swap         /dev/sdx4                                    /dev/urandom            swap,cipher=aes-cbc-essiv:sha256,size=256
# vol          /dev/sdb7                                    none
LUKS_BOOT UUID=0aa71e69-f210-4552-9674-828a5a866413 /etc/luks/boot_os.keyfile luks,discard
sda5_crypt UUID=e70c99df-ff59-4969-9fc9-04e3f3c51dbc /etc/luks/boot_os.keyfile luks,discard