diff --git a/archiso/mkarchiso b/archiso/mkarchiso
index fb65f09..e6a2195 100755
--- a/archiso/mkarchiso
+++ b/archiso/mkarchiso
@@ -47,42 +47,15 @@ _show_space_usage () {
     _msg_info "Total: ${_total} MiB (100%) | Used: ${_used} MiB (${_pct_u}) | Avail: ${_avail} MiB ($((100 - ${_pct_u%\%}))%)"
 }
 
-_chroot_mount () {
-    mount -t devtmpfs dev "${work_dir}/root-image/dev"
-    mount -t devpts devpts "${work_dir}/root-image/dev/pts"
-    mount -t tmpfs devshm "${work_dir}/root-image/dev/shm"
-    mount -t proc proc "${work_dir}/root-image/proc"
-    mount -t tmpfs run "${work_dir}/root-image/run"
-    mount -t sysfs sys "${work_dir}/root-image/sys"
-    mount -t tmpfs tmp "${work_dir}/root-image/tmp"
-
-    trap '_chroot_umount' EXIT HUP INT TERM
-}
-
-_chroot_umount () {
-    umount "${work_dir}/root-image/tmp"
-    umount "${work_dir}/root-image/sys"
-    umount "${work_dir}/root-image/run"
-    umount "${work_dir}/root-image/proc"
-    umount "${work_dir}/root-image/dev/shm"
-    umount "${work_dir}/root-image/dev/pts"
-    umount "${work_dir}/root-image/dev"
-
-    trap - EXIT HUP INT TERM
-}
-
 _chroot_init() {
-    if [[ ! -d ${work_dir}/root-image/var/cache/pacman ]]; then
-        mkdir -p ${work_dir}/root-image/{dev,proc,run,sys,tmp,var/lib/pacman}
-        _pacman "base"
-        _pacman "syslinux"
+    if [[ ! -d ${work_dir}/root-image ]]; then
+        mkdir -p ${work_dir}/root-image
+        _pacman "base syslinux"
     fi
 }
 
 _chroot_run() {
-    _chroot_mount
-    eval chroot ${work_dir}/root-image "${run_cmd}"
-    _chroot_umount
+    eval arch-chroot ${work_dir}/root-image "${run_cmd}"
 }
 
 # Mount a filesystem (trap signals in case of error for unmounting it
@@ -218,16 +191,12 @@ _pacman ()
 {
     _msg_info "Installing packages to '${work_dir}/root-image/'..."
 
-    _chroot_mount
-
     if [[ "${quiet}" = "y" ]]; then
-        pacman -Sy -r "${work_dir}/root-image" --config "${pacman_conf}" --needed --noconfirm $* &> /dev/null
+        pacstrap -C "${pacman_conf}" -c -d -G -M "${work_dir}/root-image" $* &> /dev/null
     else
-        pacman -Sy -r "${work_dir}/root-image" --config "${pacman_conf}" --needed --noconfirm $*
+        pacstrap -C "${pacman_conf}" -c -d -G -M "${work_dir}/root-image" $*
     fi
 
-    _chroot_umount
-
     _msg_info "Packages installed successfully!"
 }
 
diff --git a/docs/README.build b/docs/README.build
index 80d4b2c..e22ec65 100644
--- a/docs/README.build
+++ b/docs/README.build
@@ -13,6 +13,7 @@ INDEX
 *** Build requirements
 
 ** For mkarchiso script needs these packages (build host):
+ + arch-install-scripts    for pacstrap/arch-chroot
  + squashfs-tools          for mksquashfs
  + libisoburn              for xorriso
  + btrfs-progs             for mkfs.btrfs (optional)
@@ -83,7 +84,7 @@ module of SYSLINUX. ISOLINUX can not find config files on
 *** Building the most basic Arch Linux live media. (configs/baseline)
 
 * Install needed packages.
-  # pacman -S git make squashfs-tools libisoburn rsync --needed
+  # pacman -S git make arch-install-scripts squashfs-tools libisoburn rsync --needed
 
 * Install archiso.
   # git clone git://projects.archlinux.org/archiso.git
@@ -99,7 +100,7 @@ used to build official images with much more things.
 *** Building official Arch Linux live media. (configs/releng)
 
 * Install needed packages.
-  # pacman -S git make squashfs-tools libisoburn dosfstools lynx --needed
+  # pacman -S git make arch-install-scripts squashfs-tools libisoburn dosfstools lynx --needed
 
 * Install archiso.
   # git clone git://projects.archlinux.org/archiso.git