refactor

config

@@ -3,91 +3,134 @@
 #
 
 # debug mode
-#debug=0
+#
+debug=0
 
 # overwrite initramfs
-#force=0
-
-# init
-#init=""
+#
+force=0
 
 # initramfs name
-#initramfs=""
+#
+# default - /tmp/initramfs-$kernel
+# example - output="/tmp/myinitramfs.img.gz"
+#
+output=""
 
 # monolithic kernel
-#monolith=""
+#
+monolith=0
 
-# drivers directory
-#moddir=""
+# modules directory
+#
+# default - /lib/modules
+# example - moddir="/mnt/root/lib/modules"
+#
+moddir=""
 
 # kernel version
-#kernel=""
+#
+# default - $(uname -r)
+# example - kernel="5.4.18_1"
+#
+kernel=""
 
 # compression program
-#compress=""
+#
+# default - gzip -9
+# example - compress="pigz -9"
+#
+compress=""
 
 # root
-#root=""
+#
+# supported - PARTUUID, DEVICE, LABEL, PARTUUID
+# example -
+#   root="/dev/sda1"
+#   root="PARTUUID=35f923c5-083a-4950-a4da-e611d0778121"
+#
+root=""
 
 # root type
-#root_type=""
+#
+# default - autodetected
+# example - root_type="btrfs"
+#
+root_type=""
 
 # root options
-#root_opts=""
-
-# util-linux binaries
-#util_linux=0
+# example - see fstab(5)
+#
+root_opts=""
 
 # device manager
-#devmgr=""
+# supported - udev, mdev, mdevd
+#
+devmgr=""
 
 # hostonly mode
-#hostonly=0
+#
+hostonly=0
 
-# additional drivers
-#drivers=""
+# additional modules
+# example - modules="fat crc32c_generic"
+#
+modules=""
 
-# exclude drivers
-#drivers_exclude=""
+# exclude modules
+# example - modules_exclude="wmi fuse"
+#
+modules_exclude=""
 
 # additional binaries
-#binaries=""
+# example - binaries="ls cat /path/to/mycustomprog"
+#
+binaries=""
 
 # LVM support
-#lvm=0
-
-# LVM logical volume name
-#lvm_name=""
-
-# LVM volume group name
-#lvm_group=""
-
-# LVM config
-#lvm_config=0
-
-# LVM issue_discards
-#lvm_discard=0
+#
+lvm=0
 
 # LVM options
-#lvm_args=""
+#
+# supported - tag, name, group, config, discard
+# description -
+#   tag - trigger lvm by tag
+#   name - trigger lvm by logical volume name
+#   group - trigger lvm by volume group name
+#   config - embed host lvm config
+#   discard - enable issue_discards
+# example -
+#   lvm_opts="tag=lvm-server"
+#   lvm_opts="name=lv1,group=vg1"
+#   lvm_opts="config=1,discard"
+#   lvm_opts="discard=1"
+#
+lvm_opts=""
 
 # LUKS support
-#luks=0
+#
+luks=0
 
 # LUKS encrypted root
-#luks_root=""
-
-# LUKS mapper name
-#luks_name=""
-
-# LUKS detached header
-#luks_header="/path/to/header"
-
-# LUKS keyfile
-#luks_keyfile="/path/to/keyfile"
-
-# LUKS allow_discards
-#luks_discard=0
+#
+# supported - PARTUUID, DEVICE, LABEL, PARTUUID
+# example -
+#   luks_root="/dev/sda1"
+#   luks_root="PARTUUID=35f923c5-083a-4950-a4da-e611d0778121"
+#
+luks_root=""
 
 # LUKS options
-#luks_args=""
+#
+# supported - key, name, header, discard
+# description -
+#   key - embed key
+#   name - device mapper name
+#   header - embed header
+#   discard - enable allow-discards
+# example -
+#   luks_opts="key=/path/to/keyfile,name=myluksroot,header=/path/to/header,discard"
+#   luks_opts="discard=1"
+#
+luks_opts=""