diff --git a/config b/config
index a5cef04..d8b585f 100644
--- a/config
+++ b/config
@@ -5,29 +5,28 @@
 # debug mode
 #debug=0
 
-# overwrite existing initramfs image
+# overwrite initramfs
 #force=0
 
-# custom init
+# init
 #init=""
 
-# custom output name
+# initramfs name
 #initramfs=""
 
-# custom drivers directory
+# drivers directory
 #moddir=""
 
-# custom kernel version
+# kernel version
 #kernel=""
 
-# custom compression program
+# compression program
 #compress=""
 
-# root fs ( device,partuuid,uuid,label )
+# root
 #root=""
 
 # root type
-# change this if you using busybox util-linux
 #root_type=""
 
 # root options
@@ -36,19 +35,19 @@
 # util-linux binaries
 #util_linux=0
 
-# device manager ( mdev,mdevd,udev )
+# device manager
 #devmgr=""
 
 # hostonly mode
 #hostonly=0
 
-# custom drivers
+# additional drivers
 #drivers=""
 
 # exclude drivers
 #drivers_exclude=""
 
-# custom binaries
+# additional binaries
 #binaries=""
 
 # LVM support
@@ -60,8 +59,8 @@
 # LVM volume group name
 #lvm_group=""
 
-# LVM include config
-#lvm_conf=0
+# LVM config
+#lvm_config=0
 
 # LVM issue_discards
 #lvm_discard=0
@@ -72,10 +71,10 @@
 # LUKS support
 #luks=0
 
-# LUKS encrypted root ( device,partuuid,uuid,label )
+# LUKS encrypted root
 #luks_root=""
 
-# luks mapper name ( /dev/mapper/<name> )
+# LUKS mapper name
 #luks_name=""
 
 # LUKS detached header
diff --git a/tinyramfs b/tinyramfs
index 7c8dc15..2acb690 100755
--- a/tinyramfs
+++ b/tinyramfs
@@ -165,7 +165,7 @@ install_devmgr() {
                 ! -path "*hwdb.d*" \
                 -type f |
 
-            cpio -pd "$workdir" > /dev/null 2>&1 || msg panic "failed to install udev"
+            cpio -pd "$workdir" > /dev/null 2>&1
             ;;
         mdev)
             install -m644  "${filesdir}/mdev.conf"      "${workdir}/etc/mdev.conf"
@@ -179,9 +179,6 @@ install_devmgr() {
             install -m644  "${filesdir}/mdev.conf"      "${workdir}/etc/mdev.conf"
             install -Dm755 "${filesdir}/storage-device" "${workdir}/lib/mdev/storage-device"
             ;;
-        *)
-            msg panic "devmgr option broken"
-            ;;
     esac
 }
 
@@ -196,11 +193,10 @@ install_lvm() {
         done
 
     # install lvm config
-    if [ "$lvm_conf" = 1 ]; then
+    if [ "$lvm_config" = 1 ]; then
         mkdir -p "${workdir}/etc/lvm"
 
-        cp /etc/lvm/*.conf "${workdir}/etc/lvm" ||
-            msg panic "failed to install LVM config"
+        cp /etc/lvm/*.conf "${workdir}/etc/lvm"
     else
         mkdir -p "${workdir}/etc/lvm"
 
@@ -238,17 +234,13 @@ install_luks() {
 
     # copy luks header
     [ -f "$luks_header" ] && {
-        install -m400 "$luks_header" "${workdir}/root/luks_header" ||
-            msg panic "failed to copy LUKS header"
-
+        install -m400 "$luks_header" "${workdir}/root/luks_header"
         luks_args="--header=/root/luks_header $luks_args"
     }
 
     # copy luks keyfile
     [ -f "$luks_keyfile" ] && {
-        install -m400 "$luks_keyfile" "${workdir}/root/luks_keyfile" ||
-            msg panic "failed to copy LUKS keyfile"
-
+        install -m400 "$luks_keyfile" "${workdir}/root/luks_keyfile"
         luks_args="--key-file=/root/luks_keyfile $luks_args"
     }
 }
@@ -283,9 +275,6 @@ install_driver() {
 install_hostonly_drivers() {
     msg info "installing hostonly drivers"
 
-    [ "$root_type" ] ||
-        msg panic "hostonly mode required root_type option to be configured"
-
     # perform autodetection of drivers via /sys
     find /sys -name modalias -exec sort -u {} + |
 
@@ -293,9 +282,6 @@ install_hostonly_drivers() {
         install_driver "$_driver"
     done
 
-    # install root fs driver
-    install_driver "$root_type"
-
     # install user specified drivers
     [ "$drivers" ] &&
         for _driver in $drivers; do
diff --git a/usr/share/man/man5/tinyramfs.config.5 b/usr/share/man/man5/tinyramfs.config.5
new file mode 100644
index 0000000..9276818
--- /dev/null
+++ b/usr/share/man/man5/tinyramfs.config.5
@@ -0,0 +1,172 @@
+.TH tinyramfs 5 "March 2020" tinyramfs
+
+.SH NAME
+tinyramfs \- configuration options
+
+.SH GENERAL
+.TP
+.BR \fBdebug=\fR"\&\fI {0|1} \fR\&"
+Enable shell debugging
+
+This option also drop you to shell after root partition being mounted in initramfs
+.TP
+
+.TP
+.BR \fBforce=\fR"\&\fI {0|1} \fR\&"
+Disable warning about exists initramfs image
+.TP
+
+.TP
+.BR \fBinit=\fR"\&\fI /path/to/file \fR\&"
+Specify init program
+.TP
+
+.TP
+.BR \fBinitramfs=\fR"\&\fI /path/to/file \fR\&"
+Specify initramfs output name
+.TP
+
+.TP
+.BR \fBmoddir=\fR"\&\fI /path/to/dir \fR\&"
+Specify directory of drivers
+.TP
+
+.TP
+.BR \fBkernel=\fR"\&\fI ... \fR\&"
+Specify kernel version
+.TP
+
+.TP
+.BR \fBcompress=\fR"\&\fI ... \fR\&"
+Specify compression program
+.TP
+
+.TP
+.BR \fBroot=\fR"\&\fI ... \fR\&"
+Specify root partition [PARTUUID, UUID, LABEL, DEVICE]
+
+This option is required
+.TP
+
+.TP
+.BR \fBroot_type=\fR"\&\fI ... \fR\&"
+Specify root partition type
+.TP
+
+.TP
+.BR \fBroot_opts=\fR"\&\fI ... \fR\&"
+Specify root partition mount options (comma separated)
+.TP
+
+.TP
+.BR \fButil_linux=\fR"\&\fI {0|1} \fR\&"
+Include util-linux binaries
+
+This option required if you need PARTUUID support
+.TP
+
+.TP
+.BR \fBdevmgr=\fR"\&\fI ... \fR\&"
+Specify device manager [udev, mdev, mdevd]
+
+This option is required
+.TP
+
+.TP
+.BR \fBhostonly=\fR"\&\fI {0|1} \fR\&"
+Enable hostonly mode
+.TP
+
+.TP
+.BR \fBdrivers=\fR"\&\fI ... \fR\&"
+Include additional drivers (space separated)
+
+If host only mode enabled you need to specify your root partition driver
+.TP
+
+.TP
+.BR \fBdrivers_exclude=\fR"\&\fI ... \fR\&"
+Exclude specified drivers (space separated)
+.TP
+
+.TP
+.BR \fBbinaries=\fR"\&\fI ... \fR\&"
+Include additional binaries (space separated)
+.TP
+
+.SH LVM
+
+.TP
+.BR \fBlvm=\fR"\&\fI {0|1} \fR\&"
+Enable LVM support
+
+This option required if you need LVM support
+.TP
+
+.TP
+.BR \fBlvm_name=\fR"\&\fI ... \fR\&"
+Specify logical volume name
+.TP
+
+.TP
+.BR \fBlvm_group=\fR"\&\fI ... \fR\&"
+Specify volume group name
+.TP
+
+.TP
+.BR \fBlvm_config=\fR"\&\fI {0|1} \fR\&"
+Include config from /etc/lvm
+
+This option overwrite lvm_discard option
+.TP
+
+.TP
+.BR \fBlvm_discard=\fR"\&\fI {0|1} \fR\&"
+Enable TRIM requests
+.TP
+
+.TP
+.BR \fBlvm_args=\fR"\&\fI ... \fR\&"
+Pass additional options to lvm
+.TP
+
+.SH LUKS
+
+.TP
+.BR \fBluks=\fR"\&\fI {0|1} \fR\&"
+Enable LUKS support
+
+This option required if you need LUKS support
+.TP
+
+.TP
+.BR \fBluks_root=\fR"\&\fI ... \fR\&"
+Specify encrypted root partition [PARTUUID, UUID, LABEL, DEVICE]
+
+This option required if you need LUKS support
+.TP
+
+.TP
+.BR \fBluks_name=\fR"\&\fI ... \fR\&"
+Specify device mapper name
+.TP
+
+.TP
+.BR \fBluks_header=\fR"\&\fI /path/to/file \fR\&"
+Embed header into initramfs
+.TP
+
+.TP
+.BR \fBluks_keyfile=\fR"\&\fI /path/to/file \fR\&"
+Embed key into initramfs
+.TP
+
+.TP
+.BR \fBluks_discard=\fR"\&\fI {0|1} \fR\&"
+Enable TRIM requests
+.TP
+
+.TP
+.BR \fBluks_args=\fR"\&\fI ... \fR\&"
+Pass additional options to cryptsetup
+.TP
diff --git a/usr/share/man/man7/tinyramfs.cmdline.7 b/usr/share/man/man7/tinyramfs.cmdline.7
new file mode 100644
index 0000000..5fbd144
--- /dev/null
+++ b/usr/share/man/man7/tinyramfs.cmdline.7
@@ -0,0 +1,102 @@
+.TH tinyramfs 7 "March 2020" tinyramfs
+
+.SH NAME
+tinyramfs \- kernel command line options
+
+.SH GENERAL
+
+.TP
+.BR \fBdebug=\fR"\&\fI {0|1} \fR\&"
+Enable shell debugging
+
+This option also drop you to shell after root partition being mounted
+.TP
+
+.TP
+.BR \fBinit=\fR"\&\fI /path/to/file \fR\&"
+Specify init program
+.TP
+
+.TP
+.BR \fBroot=\fR"\&\fI ... \fR\&"
+Specify root partition [PARTUUID, UUID, LABEL, DEVICE]
+.TP
+
+.TP
+.BR \fBroot.type=\fR"\&\fI ... \fR\&"
+Specify root partition type
+.TP
+
+.TP
+.BR \fBroot.opts=\fR"\&\fI ... \fR\&"
+Specify root partition mount options (comma separated)
+.TP
+
+.SH LVM
+
+.TP
+.BR \fBlvm=\fR"\&\fI {0|1} \fR\&"
+Enable LVM support
+.TP
+
+.TP
+.BR \fBlvm.name=\fR"\&\fI ... \fR\&"
+Specify logical volume name
+.TP
+
+.TP
+.BR \fBlvm.group=\fR"\&\fI ... \fR\&"
+Specify volume group name
+.TP
+
+.TP
+.BR \fBlvm.config=\fR"\&\fI {0|1} \fR\&"
+Not implemented
+.TP
+
+.TP
+.BR \fBlvm.discard=\fR"\&\fI {0|1} \fR\&"
+Not implemented
+.TP
+
+.TP
+.BR \fBlvm.args=\fR"\&\fI ... \fR\&"
+Pass additional options to lvm
+.TP
+
+.SH LUKS
+
+.TP
+.BR \fBluks=\fR"\&\fI {0|1} \fR\&"
+Enable LUKS support
+.TP
+
+.TP
+.BR \fBluks.root=\fR"\&\fI ... \fR\&"
+Specify encrypted root partition [PARTUUID, UUID, LABEL, DEVICE]
+.TP
+
+.TP
+.BR \fBluks.name=\fR"\&\fI ... \fR\&"
+Specify device mapper name
+.TP
+
+.TP
+.BR \fBluks.header=\fR"\&\fI /path/to/file \fR\&"
+Not implemented
+.TP
+
+.TP
+.BR \fBluks.keyfile=\fR"\&\fI /path/to/file \fR\&"
+Not implemented
+.TP
+
+.TP
+.BR \fBluks.discard=\fR"\&\fI {0|1} \fR\&"
+Enable TRIM requests
+.TP
+
+.TP
+.BR \fBluks.args=\fR"\&\fI ... \fR\&"
+Pass additional options to cryptsetup
+.TP
diff --git a/usr/share/tinyramfs/init b/usr/share/tinyramfs/init
index 2853feb..f8dcc75 100644
--- a/usr/share/tinyramfs/init
+++ b/usr/share/tinyramfs/init
@@ -68,9 +68,6 @@ setup_devmgr() {
             mdevd &
             mdevd-coldplug
             ;;
-        *)
-            panic "devmgr option broken"
-            ;;
     esac
 }
 
@@ -82,7 +79,6 @@ findfs_sh() {
         UUID)     device="/dev/disk/by-uuid/${value}"     ;;
         PARTUUID) device="/dev/disk/by-partuuid/${value}" ;;
         /dev/*)   device="$1"                             ;;
-        *)        panic "findfs option broken"            ;;
     esac
 
     # avoid race condition
@@ -131,7 +127,6 @@ cleanup() {
         mdevd) killall mdevd      ;;
     esac
 
-    # unmount pseudofs's
     umount /dev /sys /proc
 }