diff --git a/src/rootfsinstall.sh b/src/rootfsinstall.sh
index 03d29b1..e1122f0 100755
--- a/src/rootfsinstall.sh
+++ b/src/rootfsinstall.sh
@@ -414,7 +414,7 @@ if [ "${SAVE_ROOT_PARTUUID}" -a "${GROWIMAGE}" ]; then
 fi
 
 if [ "$SETUSERPASSWORD" ]; then
-   echo "$SETUSERPASSWORD" | chroot $ROOTMP chpasswd -m || {
+   echo "$SETUSERPASSWORD" | chroot $ROOTMP chpasswd -c MD5 || {
       echo "ERROR: unable to set user password; aborting."
       exit 1
    }
@@ -498,7 +498,7 @@ search --no-floppy --label --set=root $VOLUME_LABEL
 
 menuentry "default" {
 echo "Loading /boot/$KERNELDEST"
-linux /boot/$KERNELDEST root=/dev/sda2 ro intel_idle.max_cstate=1 intel_pstate=disabled fbcon=rotate:1 quiet splash
+linux /boot/$KERNELDEST root=/dev/sda2 ro fbcon=rotate:1 quiet splash
 echo "Loading /boot/$INITRAMFSDEST"
 initrd /boot/$INITRAMFSDEST
 }