Fix UKI build

archInstall.sh

@@ -185,7 +185,7 @@ function chrootStep {
   done
 
   printf "Configure to build UKI images when updated\n" | tee -a $LOGFILE
-  sed -E -e 's/^(default_image|fallback_image)/#\1/' -e 's/^#(default_uki|default_options|fallback_uki)/\1/' /etc/mkinitcpio.d/linux.preset >&2 || exit $?
+  sed -i -E -e 's/^(default_image|fallback_image)/#\1/' -e 's/^#(default_uki|default_options|fallback_uki)/\1/' /etc/mkinitcpio.d/linux.preset >&2 || exit $?
 
   printf "Rebuild kernel\n" | tee -a $LOGFILE
   mkinitcpio -p linux 2>&1 || exit $?