diff --git a/mkdumprd b/mkdumprd
index a30d9ca..4d251ba 100644
--- a/mkdumprd
+++ b/mkdumprd
@@ -101,8 +101,16 @@ to_mount() {
 
     _source=$(findmnt -k -f -n -r -o SOURCE $_dev)
     _target=$(findmnt -k -f -n -r -o TARGET $_dev)
-    # mount under /sysroot in 2nd kernel, and we umount -R /sysroot before exit
-    _target="/sysroot$_target"
+    # mount under /sysroot if dump to root disk or mount under
+    #/kdumproot/$_target in other cases in 2nd kernel. systemd
+    #will be in charge to umount it.
+
+    if [ "$_target" = "/" ];then
+        _target="/sysroot"
+    else
+        _target="/kdumproot/$_target"
+    fi
+
     _fstype=$(findmnt -k -f -n -r -o FSTYPE $_dev)
     _options=$(findmnt --fstab -f -n -r -o OPTIONS $_dev)
     [ -z "$_options" ] && _options=$(findmnt -k -f -n -r -o OPTIONS $_dev)