diff -Nur e-smith-grub-2.6.1.old/root/etc/e-smith/templates/etc/default/grub/GrubCmdLineLinux e-smith-grub-2.6.1/root/etc/e-smith/templates/etc/default/grub/GrubCmdLineLinux
--- e-smith-grub-2.6.1.old/root/etc/e-smith/templates/etc/default/grub/GrubCmdLineLinux	2021-02-20 12:10:34.255000000 -0500
+++ e-smith-grub-2.6.1/root/etc/e-smith/templates/etc/default/grub/GrubCmdLineLinux	2021-02-20 12:12:07.926000000 -0500
@@ -1,12 +1,35 @@
 {
-    #GRUB_CMDLINE_LINUX="rd.lvm.lv=main/root rd.lvm.lv=main/swap rhgb quiet"
-    # to GRUB_CMDLINE_LINUX="rd.lvm.lv=main/root rd.lvm.lv=main/swap rhgb quiet rootflags=uquota,pquota"
-    # also remove noquota
-    @lines = map {
-        /^GRUB_CMDLINE_LINUX/ && s/noquota//;
-        /^GRUB_CMDLINE_LINUX/ && ! /rootflags=uquota,pquota/ && s/"$/ rootflags=uquota,pquota"/;
-        $_
-        } @lines;
+    # parse fstab to know what fstype is root partition
+    my $fstype = "ext4";
+    my @patterns =  (  qr/\s\/\s+xfs\s+/, qr/^\/dev\/main\/.*\s+xfs\s+/ );
+    open (RD, "</etc/fstab")
+    || warn "Cannot open input file /etc/fstab: $!\n";
+    while (<RD>)
+    {
+        chop;
+        $fstype="xfs" if ( $_ ~~ @patterns );
+    }
+    close(RD);
+
+    if ( $fstype eq "xfs" ) {
+        # GRUB_CMDLINE_LINUX="rd.lvm.lv=main/root rd.lvm.lv=main/swap rhgb quiet"
+        # to GRUB_CMDLINE_LINUX="rd.lvm.lv=main/root rd.lvm.lv=main/swap rhgb quiet rootflags=uquota,pquota"
+        # also remove noquota
+        @lines = map {
+                /^GRUB_CMDLINE_LINUX/ && s/noquota//;
+                /^GRUB_CMDLINE_LINUX/ && ! /rootflags=uquota,pquota/ && s/"$/ rootflags=uquota,pquota"/;
+                $_
+                } @lines;
+    } else {
+        # if we are using ext[234] or any other fs type let's default to ...
+        @lines = map {
+                /^GRUB_CMDLINE_LINUX/ && s/noquota//;
+                /^GRUB_CMDLINE_LINUX/ && /rootflags=uquota,pquota/ && s/rootflags=uquota,pquota//;
+                $_
+                } @lines;
+
+
+    }
     "";
 }