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新建文件夹 (4)/tools/vtoygrub

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+#!/bin/sh
+
+find_grub_probe_path() {
+    if which grub-probe >/dev/null 2>&1; then
+        which grub-probe
+    elif which grub2-probe >/dev/null 2>&1; then
+        which grub2-probe
+    else
+        echo "XXX"
+    fi
+}
+
+find_grub_mkconfig_path() {
+    if which grub-mkconfig >/dev/null 2>&1; then
+        which grub-mkconfig
+    elif which grub2-mkconfig >/dev/null 2>&1; then
+        which grub2-mkconfig
+    else
+        echo "XXX"
+    fi
+}
+
+find_grub_config_path() {
+    for i in grub.cfg grub2.cfg grub-efi.cfg grub2-efi.cfg; do
+        if readlink -f -e /etc/$i > /dev/null; then
+            cfgfile=$(readlink -f -e /etc/$i)
+            echo $cfgfile
+            return
+        fi
+    done
+    
+    for t in /boot/grub/grub.cfg /boot/grub2/grub.cfg; do
+        if grep -q 'BEGIN' $t 2>/dev/null; then
+            echo $t
+            return
+        fi
+    done
+    
+    echo "xx"
+}
+
+update_grub_config() {
+    GRUB_UPDATE=""
+    if update-grub -V > /dev/null 2>&1; then
+        GRUB_UPDATE=update-grub
+    elif update-grub2 -V > /dev/null 2>&1; then
+        GRUB_UPDATE=update-grub2
+    else
+        vgrubcfg=$(find_grub_config_path)
+        mkconfig=$(find_grub_mkconfig_path)
+
+        if [ -f $mkconfig -a -f $vgrubcfg ]; then
+            GRUB_UPDATE="$mkconfig -o $vgrubcfg"
+        else
+            echo "no grub.cfg found."
+            return
+        fi
+    fi
+
+    if [ -n "$GRUB_UPDATE" ]; then
+        echo "update grub config $GRUB_UPDATE"
+        $GRUB_UPDATE
+    fi
+}
+
+USER=$(whoami)
+if [ "$USER" != "root" ]; then
+    echo "Please run this script as root or use sudo"
+    echo ""
+    exit 1
+fi
+
+update_grub_config