diff --git a/sdata/subcmd-install/3.files-legacy.sh b/sdata/subcmd-install/3.files-legacy.sh
index 2c01bf58b..5d6bd8a62 100644
--- a/sdata/subcmd-install/3.files-legacy.sh
+++ b/sdata/subcmd-install/3.files-legacy.sh
@@ -8,7 +8,7 @@ function copy_file_s_t(){
   local t=$2
   if [ -f $t ];then
     echo -e "${STY_YELLOW}[$0]: \"$t\" already exists.${STY_RST}"
-    if $firstrun;then
+    if ${INSTALL_FIRSTRUN};then
       echo -e "${STY_BLUE}[$0]: It seems to be the firstrun.${STY_RST}"
       v mv $t $t.old
       v cp -f $s $t
@@ -35,11 +35,19 @@ function copy_dir_s_t(){
 #####################################################################################
 # In case some dirs does not exists
 v mkdir -p $XDG_BIN_HOME $XDG_CACHE_HOME $XDG_CONFIG_HOME $XDG_DATA_HOME/icons
-if test -f "${FIRSTRUN_FILE}"; then
-  firstrun=false
-else
-  firstrun=true
-fi
+
+case ${INSTALL_FIRSTRUN} in
+  # When specify --firstrun
+  true) sleep 0 ;;
+  # When not specify --firstrun
+  *)
+    if test -f "${FIRSTRUN_FILE}"; then
+      ${INSTALL_FIRSTRUN}=false
+    else
+      ${INSTALL_FIRSTRUN}=true
+    fi
+    ;;
+esac
 
 # `--delete' for rsync to make sure that
 # original dotfiles and new ones in the SAME DIRECTORY
diff --git a/sdata/subcmd-install/options.sh b/sdata/subcmd-install/options.sh
index 5d843d83d..992010cfb 100644
--- a/sdata/subcmd-install/options.sh
+++ b/sdata/subcmd-install/options.sh
@@ -8,6 +8,7 @@ Idempotent installation for dotfiles.
 Options for install:
   -h, --help                Print this help message and exit
   -f, --force               (Dangerous) Force mode without any confirm
+  -F, --fisrtrun            Act like it is the first run
   -c, --clean               Clean the build cache first
       --skip-allgreeting    Skip the whole process greeting
       --skip-alldeps        Skip the whole process installing dependency
@@ -43,8 +44,8 @@ cleancache(){
 
 # `man getopt` to see more
 para=$(getopt \
-  -o hfk:cs \
-  -l help,force,fontset:,clean,skip-allgreeting,skip-alldeps,skip-allsetups,skip-allfiles,skip-sysupdate,skip-plasmaintg,skip-backup,skip-quickshell,skip-fish,skip-hyprland,skip-fontconfig,skip-miscconf,core,exp-files,via-nix \
+  -o hfFk:cs \
+  -l help,force,firstrun,fontset:,clean,skip-allgreeting,skip-alldeps,skip-allsetups,skip-allfiles,skip-sysupdate,skip-plasmaintg,skip-backup,skip-quickshell,skip-fish,skip-hyprland,skip-fontconfig,skip-miscconf,core,exp-files,via-nix \
   -n "$0" -- "$@")
 [ $? != 0 ] && echo "$0: Error when getopt, please recheck parameters." && exit 1
 #####################################################################################
@@ -69,6 +70,7 @@ while true ; do
     -c|--clean) shift;;
     ## Ones without parameter
     -f|--force) ask=false;shift;;
+    -F|--firstrun) INSTALL_FIRSTRUN=true;shift;;
     --skip-allgreeting) SKIP_ALLGREETING=true;shift;;
     --skip-alldeps) SKIP_ALLDEPS=true;shift;;
     --skip-allsetups) SKIP_ALLSETUPS=true;shift;;