diff --git a/mkimage.sh.in b/mkimage.sh.in
index 3da09b6..ad81a70 100644
--- a/mkimage.sh.in
+++ b/mkimage.sh.in
@@ -32,26 +32,26 @@ trap 'printf "\nInterrupted! exiting...\n"; cleanup; exit 0' INT TERM HUP
 
 mount_pseudofs() {
     for f in sys dev proc; do
-        mkdir -p $ROOTFSDIR/$f
-        mount --bind /$f $ROOTFSDIR/$f
+        mkdir -p $ROOTFS/$f
+        mount --bind /$f $ROOTFS/$f
     done
 }
 umount_pseudofs() {
-    umount -f $ROOTFSDIR/sys >/dev/null 2>&1
-    umount -f $ROOTFSDIR/dev >/dev/null 2>&1
-    umount -f $ROOTFSDIR/proc >/dev/null 2>&1
+    umount -f $ROOTFS/sys >/dev/null 2>&1
+    umount -f $ROOTFS/dev >/dev/null 2>&1
+    umount -f $ROOTFS/proc >/dev/null 2>&1
 }
 
 cleanup() {
     unmount_pseudofs
-    umount -f ${ROOTFSDIR}/boot 2>/dev/null
-    umount -f ${ROOTFSDIR} 2>/dev/null
+    umount -f ${ROOTFS}/boot 2>/dev/null
+    umount -f ${ROOTFS} 2>/dev/null
     if [ -e "$LOOPDEV" ]; then
         partx -d $LOOPDEV 2>/dev/null
         losetup -d $LOOPDEV 2>/dev/null
     fi
 	
-    [ -d "$ROOTFSDIR" ] && rmdir $ROOTFSDIR
+    [ -d "$ROOTFS" ] && rmdir $ROOTFS
 }
 
 info_msg() {
@@ -147,7 +147,7 @@ esac
 info_msg "Creating disk image ($IMGSIZE) ..."
 truncate -s "${IMGSIZE}" $FILENAME >/dev/null 2>&1
 
-ROOTFSDIR=$(mktemp -d)
+ROOTFS=$(mktemp -d)
 
 info_msg "Creating disk image partitions/filesystems ..."
 if [ "$BOOT_FSTYPE" = "vfat" ]; then
@@ -162,7 +162,7 @@ label: dos
 _EOF
     LOOPDEV=$(losetup --show --find --partscan $FILENAME)
     mkfs.${ROOT_FSTYPE} -O '^64bit,^extra_isize,^has_journal' ${LOOPDEV}p1 >/dev/null 2>&1
-    mount ${LOOPDEV}p1 $ROOTFSDIR
+    mount ${LOOPDEV}p1 $ROOTFS
     ROOT_UUID=$(blkid -o value -s UUID ${LOOPDEV}p1)
     ;;
 *)
@@ -177,9 +177,9 @@ _EOF
         ext[34]) disable_journal="-O ^has_journal";;
     esac
     mkfs.${ROOT_FSTYPE} $disable_journal ${LOOPDEV}p2 >/dev/null 2>&1
-    mount ${LOOPDEV}p2 $ROOTFSDIR
-    mkdir -p ${ROOTFSDIR}/boot
-    mount ${LOOPDEV}p1 ${ROOTFSDIR}/boot
+    mount ${LOOPDEV}p2 $ROOTFS
+    mkdir -p ${ROOTFS}/boot
+    mount ${LOOPDEV}p1 ${ROOTFS}/boot
     BOOT_UUID=$(blkid -o value -s UUID ${LOOPDEV}p1)
     ROOT_UUID=$(blkid -o value -s UUID ${LOOPDEV}p2)
     ;;
@@ -188,85 +188,85 @@ esac
 info_msg "Unpacking rootfs tarball ..."
 if [ "$PLATFORM" = "beaglebone" ]; then
     fstab_args=",noauto"
-    tar xfp $ROOTFS_TARBALL -C $ROOTFSDIR ./boot/MLO
-    tar xfp $ROOTFS_TARBALL -C $ROOTFSDIR ./boot/u-boot.img
-    touch $ROOTFSDIR/boot/uEnv.txt
-    umount $ROOTFSDIR/boot
+    tar xfp $ROOTFS_TARBALL -C $ROOTFS ./boot/MLO
+    tar xfp $ROOTFS_TARBALL -C $ROOTFS ./boot/u-boot.img
+    touch $ROOTFS/boot/uEnv.txt
+    umount $ROOTFS/boot
 fi
-tar xfp $ROOTFS_TARBALL --xattrs --xattrs-include='*' -C $ROOTFSDIR
+tar xfp $ROOTFS_TARBALL --xattrs --xattrs-include='*' -C $ROOTFS
 
 fspassno="1"
 if [ "$ROOT_FSTYPE" = "f2fs" ]; then
     fspassno="0"
 fi
-echo "UUID=$ROOT_UUID / $ROOT_FSTYPE defaults 0 ${fspassno}" >> ${ROOTFSDIR}/etc/fstab
+echo "UUID=$ROOT_UUID / $ROOT_FSTYPE defaults 0 ${fspassno}" >> ${ROOTFS}/etc/fstab
 if [ -n "$BOOT_UUID" ]; then
-    echo "UUID=$BOOT_UUID /boot $BOOT_FSTYPE defaults${fstab_args} 0 2" >> ${ROOTFSDIR}/etc/fstab
+    echo "UUID=$BOOT_UUID /boot $BOOT_FSTYPE defaults${fstab_args} 0 2" >> ${ROOTFS}/etc/fstab
 fi
 
 case "$PLATFORM" in
 bananapi*|cubieboard2*|cubietruck*)
-    dd if=${ROOTFSDIR}/boot/u-boot-sunxi-with-spl.bin of=${LOOPDEV} bs=1024 seek=8 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/u-boot-sunxi-with-spl.bin of=${LOOPDEV} bs=1024 seek=8 >/dev/null 2>&1
     ;;
 odroid-c2*)
-    dd if=${ROOTFSDIR}/boot/bl1.bin.hardkernel of=${LOOPDEV} bs=1 count=442 >/dev/null 2>&1
-    dd if=${ROOTFSDIR}/boot/bl1.bin.hardkernel of=${LOOPDEV} bs=512 skip=1 seek=1 >/dev/null 2>&1
-    dd if=${ROOTFSDIR}/boot/u-boot.bin of=${LOOPDEV} bs=512 seek=97 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/bl1.bin.hardkernel of=${LOOPDEV} bs=1 count=442 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/bl1.bin.hardkernel of=${LOOPDEV} bs=512 skip=1 seek=1 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/u-boot.bin of=${LOOPDEV} bs=512 seek=97 >/dev/null 2>&1
     ;;
 odroid-u2*)
-    dd if=${ROOTFSDIR}/boot/E4412_S.bl1.HardKernel.bin of=${LOOPDEV} seek=1 >/dev/null 2>&1
-    dd if=${ROOTFSDIR}/boot/bl2.signed.bin of=${LOOPDEV} seek=31 >/dev/null 2>&1
-    dd if=${ROOTFSDIR}/boot/u-boot.bin of=${LOOPDEV} seek=63 >/dev/null 2>&1
-    dd if=${ROOTFSDIR}/boot/E4412_S.tzsw.signed.bin of=${LOOPDEV} seek=2111 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/E4412_S.bl1.HardKernel.bin of=${LOOPDEV} seek=1 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/bl2.signed.bin of=${LOOPDEV} seek=31 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/u-boot.bin of=${LOOPDEV} seek=63 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/E4412_S.tzsw.signed.bin of=${LOOPDEV} seek=2111 >/dev/null 2>&1
     ;;
 usbarmory*)
-    dd if=${ROOTFSDIR}/boot/u-boot.imx of=${LOOPDEV} bs=512 seek=2 conv=fsync >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/u-boot.imx of=${LOOPDEV} bs=512 seek=2 conv=fsync >/dev/null 2>&1
     ;;
 ci20*)
-    dd if=${ROOTFSDIR}/boot/u-boot-spl.bin of=${LOOPDEV} obs=512 seek=1 >/dev/null 2>&1
-    dd if=${ROOTFSDIR}/boot/u-boot.img of=${LOOPDEV} obs=1K seek=14 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/u-boot-spl.bin of=${LOOPDEV} obs=512 seek=1 >/dev/null 2>&1
+    dd if=${ROOTFS}/boot/u-boot.img of=${LOOPDEV} obs=1K seek=14 >/dev/null 2>&1
     ;;
 GCP*)
     # Setup GRUB
     mount_pseudofs
-    chroot ${ROOTFSDIR} grub-install ${LOOPDEV}
-    sed -i "s:page_poison=1:page_poison=1 console=ttyS0,38400n8d:" ${ROOTFSDIR}/etc/default/grub
-    chroot ${ROOTFSDIR} update-grub
+    chroot ${ROOTFS} grub-install ${LOOPDEV}
+    sed -i "s:page_poison=1:page_poison=1 console=ttyS0,38400n8d:" ${ROOTFS}/etc/default/grub
+    chroot ${ROOTFS} update-grub
     umount_pseudofs
 
     # Setup the GCP Guest services
     for _service in dhcpcd sshd agetty-console nanoklogd socklog-unix GCP-Guest-Initialization GCP-accounts GCP-clock-skew GCP-ip-forwarding ; do
-        chroot ${ROOTFSDIR} ln -sv /etc/sv/$_service /etc/runit/runsvdir/default/$_service
+        chroot ${ROOTFS} ln -sv /etc/sv/$_service /etc/runit/runsvdir/default/$_service
     done
 
     # Turn off the agetty's since we can't use them anyway
-    rm -v ${ROOTFSDIR}/etc/runit/runsvdir/default/agetty-tty*
+    rm -v ${ROOTFS}/etc/runit/runsvdir/default/agetty-tty*
 
     # Disable root login over ssh and lock account
-    sed -i "s:PermitRootLogin yes:PermitRootLogin no:" ${ROOTFSDIR}/etc/ssh/sshd_config
-    chroot ${ROOTFSDIR} passwd -l root
+    sed -i "s:PermitRootLogin yes:PermitRootLogin no:" ${ROOTFS}/etc/ssh/sshd_config
+    chroot ${ROOTFS} passwd -l root
 
     # Set the Timezone
-    chroot ${ROOTFSDIR} ln -svf /usr/share/zoneinfo/UTC /etc/localtime
+    chroot ${ROOTFS} ln -svf /usr/share/zoneinfo/UTC /etc/localtime
 
     # Generate glibc-locales if necessary (this is a noop on musl)
     if [ "$PLATFORM" = GCP ] ; then
-        chroot ${ROOTFSDIR} xbps-reconfigure -f glibc-locales
+        chroot ${ROOTFS} xbps-reconfigure -f glibc-locales
     fi
 
     # Remove SSH host keys (these will get rebuilt on first boot)
-    rm -v ${ROOTFSDIR}/etc/ssh/*key*
-    rm -v ${ROOTFSDIR}/etc/ssh/moduli
+    rm -v ${ROOTFS}/etc/ssh/*key*
+    rm -v ${ROOTFS}/etc/ssh/moduli
 
     # Force hte hostname since this isn't read from DHCP
-    echo "void-GCE" > ${ROOTFSDIR}/etc/hostname
+    echo "void-GCE" > ${ROOTFS}/etc/hostname
     ;;
 esac
 
-mountpoint -q ${ROOTFSDIR}/boot && umount ${ROOTFSDIR}/boot
-umount $ROOTFSDIR
+mountpoint -q ${ROOTFS}/boot && umount ${ROOTFS}/boot
+umount $ROOTFS
 losetup -d $LOOPDEV
-rmdir $ROOTFSDIR
+rmdir $ROOTFS
 
 chmod 644 $FILENAME
 case "$PLATFORM" in
diff --git a/mkrootfs.sh.in b/mkrootfs.sh.in
index 27feb85..8f72781 100644
--- a/mkrootfs.sh.in
+++ b/mkrootfs.sh.in
@@ -38,7 +38,7 @@ info_msg() {
 die() {
     echo "FATAL: $@"
     umount_pseudofs
-    [ -d "$rootfs" ] && rm -rf $rootfs
+    [ -d "$ROOTFS" ] && rm -rf $ROOTFS
     exit 1
 }
 
@@ -57,24 +57,24 @@ Options
     -c <dir>    Set XBPS cache directory (defaults to \$PWD/xbps-cachedir-<arch>)
     -C <file>   Full path to the XBPS configuration file
     -h          Show this help
-    -p <pkgs>   Additional packages to install into the rootfs (separated by blanks)
+    -p <pkgs>   Additional packages to install into the ROOTFS (separated by blanks)
     -r <repo>   Set XBPS repository (may be set multiple times)
-    -k <cmd>    Call "cmd <ROOTFSPATH>" after building the rootfs
+    -k <cmd>    Call "cmd <ROOTFSPATH>" after building the ROOTFS
     -V          Show version
 _EOF
 }
 
 mount_pseudofs() {
     for f in dev proc sys; do
-        [ ! -d $rootfs/$f ] && mkdir -p $rootfs/$f
-        mount -r --bind /$f $rootfs/$f
+        [ ! -d $ROOTFS/$f ] && mkdir -p $ROOTFS/$f
+        mount -r --bind /$f $ROOTFS/$f
     done
 }
 
 umount_pseudofs() {
-    if [ -d "${rootfs}" ]; then
+    if [ -d "${ROOTFS}" ]; then
         for f in dev proc sys; do
-            umount -f $rootfs/$f >/dev/null 2>&1
+            umount -f $ROOTFS/$f >/dev/null 2>&1
         done
     fi
 }
@@ -113,7 +113,7 @@ register_binfmt() {
             die "Unknown target architecture!"
             ;;
     esac
-    cp -f $(which $QEMU_BIN) $rootfs/usr/bin || die "failed to copy $QEMU_BIN to the rootfs"
+    cp -f $(which $QEMU_BIN) $ROOTFS/usr/bin || die "failed to copy $QEMU_BIN to the ROOTFS"
 }
 
 #
@@ -203,14 +203,14 @@ fi
 #
 # Check if package base-system is available.
 #
-rootfs=$(mktemp -d) || die "failed to create tempdir, exiting..."
-mkdir -p $rootfs/var/db/xbps/keys
-cp keys/*.plist $rootfs/var/db/xbps/keys
+ROOTFS=$(mktemp -d) || die "failed to create tempdir, exiting..."
+mkdir -p $ROOTFS/var/db/xbps/keys
+cp keys/*.plist $ROOTFS/var/db/xbps/keys
 
-run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $rootfs"
-run_cmd_target "xbps-query -R -r $rootfs $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -ppkgver $PKGBASE"
+run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $ROOTFS"
+run_cmd_target "xbps-query -R -r $ROOTFS $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -ppkgver $PKGBASE"
 
-chmod 755 $rootfs
+chmod 755 $ROOTFS
 
 case "$PLATFORM" in
     i686*|x86_64*) PKGS="${PKGBASE}" ;;
@@ -220,14 +220,14 @@ esac
 
 mount_pseudofs
 #
-# Install base-system to the rootfs directory.
+# Install base-system to the ROOTFS directory.
 #
-run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $rootfs -y ${PKGS}"
+run_cmd_target "xbps-install -S $XBPS_CONFFILE $XBPS_CACHEDIR $XBPS_REPOSITORY -r $ROOTFS -y ${PKGS}"
 
-# Enable en_US.UTF-8 locale and generate it into the target rootfs.
-if [ -e $rootfs/etc/default/libc-locales ]; then
+# Enable en_US.UTF-8 locale and generate it into the target ROOTFS.
+if [ -e $ROOTFS/etc/default/libc-locales ]; then
     LOCALE=en_US.UTF-8
-    sed -e "s/\#\(${LOCALE}.*\)/\1/g" -i $rootfs/etc/default/libc-locales
+    sed -e "s/\#\(${LOCALE}.*\)/\1/g" -i $ROOTFS/etc/default/libc-locales
 fi
 
 #
@@ -238,46 +238,46 @@ if [ -n "${_ARCH}" ]; then
     info_msg "Reconfiguring packages for ${_ARCH} ..."
     case "$PLATFORM" in
         i686*|x86_64*|GCP*)
-            run_cmd "XBPS_ARCH=${PLATFORM} xbps-reconfigure -r $rootfs base-files"
+            run_cmd "XBPS_ARCH=${PLATFORM} xbps-reconfigure -r $ROOTFS base-files"
             ;;
         *)
             register_binfmt
-            run_cmd "xbps-reconfigure -r $rootfs base-files"
-            run_cmd "chroot $rootfs env -i xbps-reconfigure -f base-files"
-            rmdir $rootfs/usr/lib32 2>/dev/null
-            rm -f $rootfs/lib32 $rootfs/lib64 $rootfs/usr/lib64
+            run_cmd "xbps-reconfigure -r $ROOTFS base-files"
+            run_cmd "chroot $ROOTFS env -i xbps-reconfigure -f base-files"
+            rmdir $ROOTFS/usr/lib32 2>/dev/null
+            rm -f $ROOTFS/lib32 $ROOTFS/lib64 $ROOTFS/usr/lib64
             ;;
     esac
-    run_cmd "chroot $rootfs xbps-reconfigure -a"
+    run_cmd "chroot $ROOTFS xbps-reconfigure -a"
 fi
 
 #
 # Setup default root password.
 #
-run_cmd "chroot $rootfs sh -c 'echo "root:voidlinux" | chpasswd -c SHA512'"
+run_cmd "chroot $ROOTFS sh -c 'echo "root:voidlinux" | chpasswd -c SHA512'"
 if [ -n "$POST_HOOK" ]; then
-    run_cmd "$POST_HOOK $rootfs"
+    run_cmd "$POST_HOOK $ROOTFS"
 fi
 umount_pseudofs
 #
-# Cleanup rootfs.
+# Cleanup ROOTFS.
 #
-rm -f $rootfs/etc/.pwd.lock 2>/dev/null
-rm -rf $rootfs/var/cache/* 2>/dev/null
+rm -f $ROOTFS/etc/.pwd.lock 2>/dev/null
+rm -rf $ROOTFS/var/cache/* 2>/dev/null
 
 #
 # Generate final tarball.
 #
 arch=$ARCH
 if [ -n "${_ARCH}" ]; then
-    rm -f $rootfs/usr/bin/$QEMU_BIN
+    rm -f $ROOTFS/usr/bin/$QEMU_BIN
     arch=${_ARCH}
 fi
 
-tarball=void-${PLATFORM}-rootfs-$(date '+%Y%m%d').tar.xz
-run_cmd "tar -cp --posix --xattrs -C $rootfs . | xz -T0 -9 > $tarball "
+tarball=void-${PLATFORM}-ROOTFS-$(date '+%Y%m%d').tar.xz
+run_cmd "tar -cp --posix --xattrs -C $ROOTFS . | xz -T0 -9 > $tarball "
 
-rm -rf $rootfs
+rm -rf $ROOTFS
 
 info_msg "Successfully created $tarball ($PLATFORM)"