diff --git a/configuration b/configuration
new file mode 100644
index 0000000..41b9b27
--- /dev/null
+++ b/configuration
@@ -0,0 +1,131 @@
+# Generated by Kconfiglib (https://github.com/ulfalizer/Kconfiglib)
+
+#
+# BOOK Settings
+#
+# BOOK_LFS is not set
+BOOK_LFS_SYSD=y
+# BOOK_BLFS is not set
+INITSYS="systemd"
+RUN_ME="./jhalfs run"
+BRANCH=y
+# WORKING_COPY is not set
+COMMIT="mihari-dev"
+LFS_MULTILIB_NO=y
+# LFS_MULTILIB_I686 is not set
+# LFS_MULTILIB_X32 is not set
+# LFS_MULTILIB_ALL is not set
+MULTILIB="default"
+BUILD_CHROOT=y
+# BUILD_BOOT is not set
+METHOD="chroot"
+# BLFS_TOOL is not set
+# CUSTOM_TOOLS is not set
+# end of BOOK Settings
+
+#
+# General Settings
+#
+LUSER="lfs"
+LGROUP="lfs"
+LHOME="/home"
+BUILDDIR="/mnt/build_dir"
+# GETPKG is not set
+# RUNMAKE is not set
+# CLEAN is not set
+# end of General Settings
+
+#
+# Build Settings
+#
+CONFIG_TESTS=y
+
+#
+# Test settings
+#
+TST_1=y
+# TST_2 is not set
+# end of Test settings
+
+TEST=1
+# PKGMNGT is not set
+# INSTALL_LOG is not set
+# STRIP is not set
+DEL_LA_FILES=y
+# NO_PROGRESS_BAR is not set
+# end of Build Settings
+
+#
+# System configuration
+#
+# HAVE_FSTAB is not set
+CONFIG_BUILD_KERNEL=y
+CONFIG="mihari-dev-kernel-config"
+# NCURSES5 is not set
+TIMEZONE="GMT"
+LANG="ko_KR.UTF-8"
+# FULL_LOCALE is not set
+PAGE_LETTER=y
+# PAGE_A4 is not set
+PAGE="letter"
+HOSTNAME="mahiroOS-dev.local"
+
+#
+# Network configuration
+#
+INTERFACE="eth0"
+IP_ADDR="10.0.2.9"
+GATEWAY="10.0.2.2"
+PREFIX="24"
+BROADCAST="10.0.2.255"
+DOMAIN="local"
+DNS1="10.0.2.3"
+DNS2="8.8.8.8"
+# end of Network configuration
+
+#
+# Console configuration
+#
+FONT="lat0-16"
+KEYMAP="us"
+# LOCAL is not set
+# end of Console configuration
+# end of System configuration
+
+#
+# Advanced Features
+#
+REPORT=y
+# SAVE_CH5 is not set
+# COMPARE is not set
+CONFIG_OPTIMIZE=y
+
+#
+# Parallelization and Optimization settings
+#
+N_PARALLEL=12
+OPT_1=y
+# OPT_2 is not set
+# end of Parallelization and Optimization settings
+
+OPTIMIZE=1
+
+#
+# Internal Settings (WARNING: for jhalfs developers only)
+#
+SCRIPT_ROOT="jhalfs"
+JHALFSDIR="$BUILDDIR/$SCRIPT_ROOT"
+LOGDIRBASE="logs"
+LOGDIR="$JHALFSDIR/$LOGDIRBASE"
+TESTLOGDIRBASE="test-logs"
+TESTLOGDIR="$JHALFSDIR/$TESTLOGDIRBASE"
+FILELOGDIRBASE="installed-files"
+FILELOGDIR="$JHALFSDIR/$FILELOGDIRBASE"
+ICALOGDIR="$LOGDIR/ICA"
+MKFILE="$JHALFSDIR/Makefile"
+XSL="lfs.xsl"
+PKG_LST="unpacked"
+# end of Internal Settings (WARNING: for jhalfs developers only)
+# end of Advanced Features
+
+REBUILD_MAKEFILE=y
diff --git a/configuration.old b/configuration.old
new file mode 100644
index 0000000..41b9b27
--- /dev/null
+++ b/configuration.old
@@ -0,0 +1,131 @@
+# Generated by Kconfiglib (https://github.com/ulfalizer/Kconfiglib)
+
+#
+# BOOK Settings
+#
+# BOOK_LFS is not set
+BOOK_LFS_SYSD=y
+# BOOK_BLFS is not set
+INITSYS="systemd"
+RUN_ME="./jhalfs run"
+BRANCH=y
+# WORKING_COPY is not set
+COMMIT="mihari-dev"
+LFS_MULTILIB_NO=y
+# LFS_MULTILIB_I686 is not set
+# LFS_MULTILIB_X32 is not set
+# LFS_MULTILIB_ALL is not set
+MULTILIB="default"
+BUILD_CHROOT=y
+# BUILD_BOOT is not set
+METHOD="chroot"
+# BLFS_TOOL is not set
+# CUSTOM_TOOLS is not set
+# end of BOOK Settings
+
+#
+# General Settings
+#
+LUSER="lfs"
+LGROUP="lfs"
+LHOME="/home"
+BUILDDIR="/mnt/build_dir"
+# GETPKG is not set
+# RUNMAKE is not set
+# CLEAN is not set
+# end of General Settings
+
+#
+# Build Settings
+#
+CONFIG_TESTS=y
+
+#
+# Test settings
+#
+TST_1=y
+# TST_2 is not set
+# end of Test settings
+
+TEST=1
+# PKGMNGT is not set
+# INSTALL_LOG is not set
+# STRIP is not set
+DEL_LA_FILES=y
+# NO_PROGRESS_BAR is not set
+# end of Build Settings
+
+#
+# System configuration
+#
+# HAVE_FSTAB is not set
+CONFIG_BUILD_KERNEL=y
+CONFIG="mihari-dev-kernel-config"
+# NCURSES5 is not set
+TIMEZONE="GMT"
+LANG="ko_KR.UTF-8"
+# FULL_LOCALE is not set
+PAGE_LETTER=y
+# PAGE_A4 is not set
+PAGE="letter"
+HOSTNAME="mahiroOS-dev.local"
+
+#
+# Network configuration
+#
+INTERFACE="eth0"
+IP_ADDR="10.0.2.9"
+GATEWAY="10.0.2.2"
+PREFIX="24"
+BROADCAST="10.0.2.255"
+DOMAIN="local"
+DNS1="10.0.2.3"
+DNS2="8.8.8.8"
+# end of Network configuration
+
+#
+# Console configuration
+#
+FONT="lat0-16"
+KEYMAP="us"
+# LOCAL is not set
+# end of Console configuration
+# end of System configuration
+
+#
+# Advanced Features
+#
+REPORT=y
+# SAVE_CH5 is not set
+# COMPARE is not set
+CONFIG_OPTIMIZE=y
+
+#
+# Parallelization and Optimization settings
+#
+N_PARALLEL=12
+OPT_1=y
+# OPT_2 is not set
+# end of Parallelization and Optimization settings
+
+OPTIMIZE=1
+
+#
+# Internal Settings (WARNING: for jhalfs developers only)
+#
+SCRIPT_ROOT="jhalfs"
+JHALFSDIR="$BUILDDIR/$SCRIPT_ROOT"
+LOGDIRBASE="logs"
+LOGDIR="$JHALFSDIR/$LOGDIRBASE"
+TESTLOGDIRBASE="test-logs"
+TESTLOGDIR="$JHALFSDIR/$TESTLOGDIRBASE"
+FILELOGDIRBASE="installed-files"
+FILELOGDIR="$JHALFSDIR/$FILELOGDIRBASE"
+ICALOGDIR="$LOGDIR/ICA"
+MKFILE="$JHALFSDIR/Makefile"
+XSL="lfs.xsl"
+PKG_LST="unpacked"
+# end of Internal Settings (WARNING: for jhalfs developers only)
+# end of Advanced Features
+
+REBUILD_MAKEFILE=y