diff --git a/README.md b/README.md
index bb95640..6943e85 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ The followings are the list of functionalities:
 - Ubuntu and Void Linux support.
 - Help to install from LiveCD/USB.
 - Invoke GUI/TUI installer automatically at the middle of script execution, for the ease of installation.
-- Automatic detection of EFI firmware and create GPT (The BIOS detection and MBR creation function exist. But they are not test from v1.3.0).
+- Automatic detection of EFI firmware and create GPT (The BIOS detection and MBR creation function exist. But they are not tested from v1.3.0).
 - Create an EFI partition, if needed.
 - Support multiple boot in a LUKS partition.
 - Support btrfs in addition to the major file systems. 
@@ -59,7 +59,7 @@ These scripts are based on the script by [myn's diary](https://myn.hatenablog.jp
 
 Also, the following documents were very important to study how Void Linux installation works. 
 - [Full Disk Encryption](https://docs.voidlinux.org/installation/guides/fde.html) in the Void Handbook. 
-- [Install LVM LUKS](https://wiki.voidlinux.org/Install_LVM_LUKS) (deprecated)
+- [Install LVM LUKS](https://wiki.voidlinux.org/Install_LVM_LUKS) (deprecated)[[archive](https://web.archive.org/web/20201112031114/https://wiki.voidlinux.org/Install_LVM_LUKS)].
 # Kaiten-yaki
 ![](image/i-like-kaiten-yaki.jpg)
 
diff --git a/script/config.sh b/script/config.sh
index 4ed7602..1c1b879 100644
--- a/script/config.sh
+++ b/script/config.sh
@@ -2,7 +2,7 @@
 
 # Configuration parameters for Kaiten-Yaki 
 
-# Storage device to install the linux.  
+# Storage device to install Linux.  
 export DEV="/dev/sda"
 
 # Whether you want to erase all contents of the storage device or not.
@@ -26,7 +26,7 @@ export LVROOTNAME="anko"
 # You will have
 # anko
 # anko_home
-# You will not have anko_var because the USELVEXT2=0.
+# You will not have anko_var because of the USELVEXT2=0.
 export USELVEXT1=0
 export LVEXT1SUFFIX="_home"
 export USELVEXT2=0
@@ -50,10 +50,10 @@ export EFISIZE="200M"
 export LVSWAPSIZE="8G"
 
 # Logical volume size of the Linux installation.
-# There are four posibble way to specify the volume. 
-# nnnM, nnnG, nnnT : Absolute size speicification. nnnMbyte, nnnGByte, nnnT byte.  
+# There are four posibble ways to specify the volume. 
+# nnnM, nnnG, nnnT : Absolute size specification. nnnMbyte, nnnGByte, nnnT byte.  
 # mm%VG : Use mm% of the entire volume group. 
-# mm%FREE : Use mm% of the avairable storage are in the volume group. 
+# mm%FREE : Use mm% of the available storage in the volume group. 
 export LVROOTSIZE="10G"
 
 # Logical volume size of the optional volumes. 
@@ -85,7 +85,7 @@ if [ -d /sys/firmware/efi ]; then
 export ISEFI=1  # Yes, EFI
 else
 export ISEFI=0  # No, BIOS
-fi # is EFI firmaare? 
+fi # is it EFI firmware? 
 
 # Set partition number based on the firmware type
 if [  ${ISEFI} -ne 0  ] ; then 
diff --git a/script/lib/common.sh b/script/lib/common.sh
index ddd4fa0..bb3ccce 100644
--- a/script/lib/common.sh
+++ b/script/lib/common.sh
@@ -82,7 +82,7 @@ function confirmation(){
 		return 1 # with error status
 	fi # "-" is found in the volume name.
 
-	# For surre ask the your config.sh is edited
+	# Make sure config.sh is edited
 	cat <<- HEREDOC
 
 	LUKS volume partition : ${DEV}${CRYPTPARTITION} 
@@ -149,7 +149,7 @@ function confirmation(){
 	# -l ###%[FREE|VG|PVS|ORIGIN] : Size by relative value. 
 	# -L ###[M|G|T|m|g|t] : Size by absolute value. 
 	# Too preven the duplicated match, awk exists the process after it match the /%/ pattern. 
-	# If Unit is not specified, installation will fail. 
+	# If the unit is not specified, installation will fail. 
 
 	LVSWAPSIZE=$(echo "${LVSWAPSIZE}" | awk '/%/{print "-l", $0; exit} /M|G|T|m|g|t/{print "-L", $0}')
 	export LVSWAPSIZE	
@@ -180,7 +180,7 @@ function pre_install() {
 	IS_LVEXT1_CREATED=0
 	IS_LVEXT2_CREATED=0
 
-	# ----- Erase entire disk, create partitions, format them  and encrypt the LUKS partition -----
+	# ----- Erase entire disk, create partitions, format them and encrypt the LUKS partition -----
 	if [ "${ERASEALL}" -ne 0 ] ; then
 
 		# Assign specified space and rest of disk to the EFI and LUKS partition, respectively.
@@ -228,7 +228,7 @@ function pre_install() {
 	echo "[Kaiten-Yaki] Opening a crypt partition \"${DEV}${CRYPTPARTITION}\" as \"${CRYPTPARTNAME}\""
 	printf %s "${PASSPHRASE}" | cryptsetup open -d - "${DEV}${CRYPTPARTITION}" "${CRYPTPARTNAME}"
 
-	# Check whether successful open. If mapped, it is successful. 
+	# Check whether it successfully opens. If mapped, it is successful. 
 	if [ ! -e /dev/mapper/"${CRYPTPARTNAME}" ] ; then 
 		cat <<- HEREDOC 
 		***** ERROR : Cannot open LUKS volume "${CRYPTPARTNAME}" on "${DEV}${CRYPTPARTITION}". *****
@@ -240,7 +240,7 @@ function pre_install() {
 	fi	# if crypt volume is unable to open
 
 	# ----- Configure the LVM in LUKS volume -----
-	# Check volume group ${VGNAME} exist or not
+	# Check if volume group ${VGNAME} exist or not
 	if  vgdisplay -s "${VGNAME}" &> /dev/null ; then		# if exist
 		echo "[Kaiten-Yaki] Volume group \"${VGNAME}\" already exist. Skipped to create. No problem."
 		echo "[Kaiten-Yaki] Activating all logical volumes in volume group \"${VGNAME}\"."
@@ -275,7 +275,7 @@ function pre_install() {
 			create_ext_lv
 			if [ $? -ne 0 ] ; then deactivate_and_close; return 1 ; fi;
 
-		else	# exist and not overwriteinstall
+		else	# exist and not overwrite install
 			cat <<- HEREDOC 
 			***** ERROR : Logical volume "${VGNAME}-${LVROOTNAME}" already exists. *****
 			[Kaiten-Yaki] Check LVROOTNAME environment variable in your config.txt.
@@ -360,17 +360,17 @@ function para_install_msg() {
 # ******************************************************************************* 
 #                  Common post-install stage
 # ******************************************************************************* 
-# In side this script, the chrooted job is parameterrized as by evn variable TARGETCHROOTEDJOB
+# Inside this script, the chrooted job is parameterized as by evn variable TARGETCHROOTEDJOB
 function post_install() {
 	## Mount the target file system
-	# ${TARGETMOUNTPOINT} is created by the GUI/TUI installer
+	# ${TARGETMOUNTPOINT} is created by the GUI/TUI installer.
 	# ${BTRFSOPTION} is defined by the caller of this function for BTRFS formated volume.
-	# ${BTRFSOPTION} have to be NOT quoted. Otherwise, mount will receive an empty
+	# ${BTRFSOPTION} have to be NOT quoted. Otherwise, mount will receive an empty.
 	# string as first option, when the veraible is empty. 
 	echo "[Kaiten-Yaki] Mounting /dev/mapper/${VGNAME}-${LVROOTNAME} on ${TARGETMOUNTPOINT}."
 	mount ${BTRFSOPTION} /dev/mapper/"${VGNAME}"-"${LVROOTNAME}" "${TARGETMOUNTPOINT}"
 
-	# And mount other directories
+	# And mount other directories.
 	echo "[Kaiten-Yaki] Mounting all other dirs."
 	for n in proc sys dev tmp etc/resolv.conf; do mount --rbind "/$n" "${TARGETMOUNTPOINT}/$n"; done
 
@@ -401,7 +401,7 @@ function post_install() {
 	echo "[Kaiten-Yaki] Disabling swap to release the LUKS volume."
 	swapoff -a
 
-	# Close LUKS
+	# Close LUKS.
 	echo "[Kaiten-Yaki] Deactivating all logical volumes in volume group \"${VGNAME}\"."
 	vgchange -a n "${VGNAME}"
 	echo "[Kaiten-Yaki] Closing LUKS volume \"${CRYPTPARTNAME}\"."
@@ -412,7 +412,7 @@ function post_install() {
 	PASSPHRASE=""
 	export PASSPHRASE
 
-	# Finishing message
+	# Finishing message.
 	cat <<- HEREDOC
 	****************** Install process finished ******************
 
@@ -464,7 +464,7 @@ function deactivate_and_close(){
 }
 
 # ******************************************************************************* 
-#              Delete the nwe volume if overwrite install, and close all
+#              Delete the new volume if overwrite install, and close all
 # ******************************************************************************* 
 function on_unexpected_installer_quit(){
 	echo "***** ERROR : The GUI/TUI installer terminated unexpectedly. *****" 
@@ -478,7 +478,7 @@ function on_unexpected_installer_quit(){
 
 
 # ******************************************************************************* 
-#              Check whether given signaure is in the system information
+#              Check whether given signature is in the system information
 # ******************************************************************************* 
 function distribution_check(){
 	if ! uname -a | grep "${DISTRIBUTIONSIGNATURE}" -i > /dev/null  ; then	#  Signature is not found in the OS name.
@@ -537,7 +537,7 @@ function create_ext_lv() {
 				echo "***** ERROR : failed to create "${VGNAME}-${LVROOTNAME}${LVEXT1SUFFIX}" . *****"
 				return 1 ; 
 			else					# if success
-				IS_LVEXT2_CREATED=1	# Mark this volume is created
+				IS_LVEXT2_CREATED=1	# Mark this volume as created
 			fi;
 		fi
 	fi
@@ -562,4 +562,4 @@ function is_error() {
 		HEREDOC
 		return 0	# If error, return OK ( because it was error )
 	fi;
-}
\ No newline at end of file
+}
diff --git a/script/ubuntu-kaiten-yaki.sh b/script/ubuntu-kaiten-yaki.sh
index 0691f7b..f159193 100644
--- a/script/ubuntu-kaiten-yaki.sh
+++ b/script/ubuntu-kaiten-yaki.sh
@@ -20,7 +20,7 @@ function main() {
 	export DISTRIBUTIONSIGNATURE="ubuntu"
 	export DISTRIBUTIONNAME="Ubuntu"
 
-	# Check whetehr given signature exist or not
+	# Check whether given signature exist or not
 	if ! distribution_check ; then
 		return 1 # with error status
 	fi
@@ -62,7 +62,7 @@ function main() {
 		export BTRFSOPTION=""
 	fi
 
-	# Distribution dependent finalizing. Embedd encryption key into the ramfs image.
+	# Distribution dependent finalizing. Embed encryption key into the ramfs image.
 	# The script is parameterized by env-variable to fit to the distribution 
 	post_install
 
@@ -78,7 +78,7 @@ function para_install_local() {
 	# Show common message to let the operator focus on the critical part
 	para_install_msg
 
-	# Distrobution dependent message
+	# Distribution dependent message
 	cat <<- HEREDOC
 
 	**************** CAUTION! CAUTION! CAUTION! ********************
@@ -90,7 +90,7 @@ function para_install_local() {
 	[Kaiten-Yaki] Type return key to start Ubiquity.
 	HEREDOC
 
-	# waiting for a console input
+	# Waiting for a console input
 	read -r
 
 	# Start Ubiquity installer 
@@ -112,7 +112,7 @@ function para_install_local() {
 
 
 # ******************************************************************************* 
-# This function will be executed in the foreguround context, to watch the GUI installer. 
+# This function will be executed in the foreground context, to watch the GUI installer. 
 function grub_check_and_modify_local() {
 
 	# While the /etc/default/grub in the install target is NOT existing, keep sleeping.
@@ -123,16 +123,16 @@ function grub_check_and_modify_local() {
 
 		# Check if installer quit unexpectedly
 		if ! ps $INSTALLER_PID  > /dev/null ; then	# If not exists
-			# Delete the nwe volume if overwrite install, and close all
+			# Delete the new volume if overwrite install, and close all
 			on_unexpected_installer_quit
 			return 1 # with error status
 		fi
 	done # while
 
-	# Perhaps, too neuvous. Wait 1 more sectond to avoid the rece condition.
+	# Perhaps, too nervous. Wait 1 more second to avoid the rece condition.
 	sleep 1 # 1sec.
 
-	# Make target GRUB aware to the crypt partition
+	# Make target GRUB aware of the crypt partition
 	# This must do it after start of the file copy by installer, but before the end of the file copy.
 	echo "[Kaiten-Yaki] Adding GRUB_ENABLE_CRYPTODISK entry to ${TARGETMOUNTPOINT}/etc/default/grub "
 	echo "GRUB_ENABLE_CRYPTODISK=y" >> ${TARGETMOUNTPOINT}/etc/default/grub
@@ -149,4 +149,4 @@ function grub_check_and_modify_local() {
 
 # ******************************************************************************* 
 # Execute
-main
\ No newline at end of file
+main
diff --git a/script/void-kaiten-yaki.sh b/script/void-kaiten-yaki.sh
index 4276811..285c375 100644
--- a/script/void-kaiten-yaki.sh
+++ b/script/void-kaiten-yaki.sh
@@ -20,7 +20,7 @@ function main() {
 	export DISTRIBUTIONSIGNATURE="void"
 	export DISTRIBUTIONNAME="Void Linux"
 
-	# Check whetehr given signature exist or not
+	# Check whether given signature exist or not
 	if ! distribution_check ; then
 		return 1 # with error status
 	fi
@@ -41,7 +41,7 @@ function main() {
 	# This is magical part. I have not understood why this is required. 
 	# Anyway, without this modification, Void Linux doesn't boot. 
 	# Refer https://wiki.voidlinux.org/Install_LVM_LUKS#Installation_using_void-installer
-	# This modification is guaratnteed once only. To allow  re-trying the installation after unexpected GUI/TUI installer quit. 
+	# This modification is guaranteed once only. To allow  re-trying the installation after unexpected GUI/TUI installer quit. 
 	export GRUB_ADDITIONAL_PARAMETERS="rd.auto=1 cryptdevice=${DEV}${CRYPTPARTITION}:${CRYPTPARTNAME} root=/dev/mapper/${VGNAME}-${LVROOTNAME}"
 	if grep "$GRUB_ADDITIONAL_PARAMETERS" /etc/default/grub ; then	# Is additonal parameter already added? 
 		# Yes 
@@ -77,7 +77,7 @@ function main() {
 	# We don't need special option for BTRFSOPTION. 
 	export BTRFSOPTION=""
 
-	# Distribution dependent finalizing. Embedd encryption key into the ramfs image. 
+	# Distribution dependent finalizing. Embed encryption key into the ramfs image. 
 	# The script is parameterized by env-variable to fit to the distribution 
 	post_install
 
@@ -93,7 +93,7 @@ function para_install_local() {
 	# Show common message to let the operator focus on the critical part
 	para_install_msg
 
-	# Distrobution dependent message
+	# Distribution dependent message
 	cat <<- HEREDOC
 
 	******************** CAUTION! CAUTION! CAUTION! ************************
@@ -105,10 +105,10 @@ function para_install_local() {
 	[Kaiten-Yaki] Type return key to start void-installer.
 	HEREDOC
 
-	# waiting for a console input
+	# Waiting for a console input
 	read -r
 
-	# Start the background target/etc/default/grub cheker.
+	# Start the background target/etc/default/grub checker.
 	# The definition of this function is down below.
 	grub_check_and_modify_local &
 
@@ -120,8 +120,8 @@ function para_install_local() {
 	
 	# Check if background checker still exist
 	if ps $grub_check_and_modify_id  > /dev/null ; then	# If exists
-		# If exist, the grub was not modifyed -> void-installer termianted unexpectedly
-		# Delete the nwe volume if overwrite install, and close all
+		# If exist, the grub was not modifyed -> void-installer terminated unexpectedly
+		# Delete the new volume if overwrite install, and close all
 		on_unexpected_installer_quit
 		echo "[Kaiten-Yaki] restoring modified /etc/default/grub."
 		sed -i "s#loglevel=4 ${GRUB_ADDITIONAL_PARAMETERS}#loglevel=4#" /etc/default/grub
@@ -144,10 +144,10 @@ function grub_check_and_modify_local() {
 		sleep 1 # 1sec.
 	done # while
 
-	# Perhaps, too neuvous. Wait 1 more sectond to avoid the rece condition.
+	# Perhaps, too nervous. Wait 1 more second to avoid the rece condition.
 	sleep 1 # 1sec.
 
-	# Make target GRUB aware to the crypt partition
+	# Make target GRUB aware of the crypt partition
 	# This must do it after start of the file copy by installer, but before the end of the file copy.
 	echo "[Kaiten-Yaki] Adding GRUB_ENABLE_CRYPTODISK entry to ${TARGETMOUNTPOINT}/etc/default/grub "
 	echo "GRUB_ENABLE_CRYPTODISK=y" >> ${TARGETMOUNTPOINT}/etc/default/grub
@@ -159,4 +159,4 @@ function grub_check_and_modify_local() {
 
 # ******************************************************************************* 
 # Execute
-main
\ No newline at end of file
+main