From 2cf3508433c323d88aafff3d961e956f669da7db Mon Sep 17 00:00:00 2001
From: alberand <albershteyn.andrey@gmail.com>
Date: Sat, 20 Mar 2021 09:15:03 +0100
Subject: [PATCH] Move grub.cfg to the default location

The default path grub is looking for its config is
/boot/grub/grub.cfg.
---
 README.pod | 6 +++++-
 novaboot   | 9 +++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/README.pod b/README.pod
index 039a1eb..dff5ae6 100644
--- a/README.pod
+++ b/README.pod
@@ -371,10 +371,14 @@ Alias for B<--prefix>.
 =item --grub2[=I<filename>]
 
 Generate GRUB2 menu entry in I<filename>. If I<filename> is not
-specified F<grub.cfg> is used. The content of the menu entry can be
+specified F<./boot/grub/grub.cfg> is used. The content of the menu entry can be
 customized with B<--grub-preamble>, B<--grub2-prolog> or
 B<--grub_prefix> options.
 
+GRUB2 can boot multiboot-compliant kernels and a few kernels with specific
+support. L</BOOT_METHOD> could be used to specify the command used by GRUB2 to
+load the kernel. See L<GNU GRUB Manual|https://www.gnu.org/software/grub/manual/grub/grub.html#Booting>.
+
 To use the generated menu entry on your development
 machine that uses GRUB2, append the following snippet to
 F</etc/grub.d/40_custom> file and regenerate your grub configuration,
diff --git a/novaboot b/novaboot
index abd5b9c..7e0bcb6 100755
--- a/novaboot
+++ b/novaboot
@@ -22,6 +22,7 @@ use Getopt::Long qw(GetOptionsFromString GetOptionsFromArray);
 use Pod::Usage;
 use File::Basename;
 use File::Spec;
+use File::Path qw(make_path);
 use IO::Handle;
 use Time::HiRes("usleep");
 use Socket;
@@ -347,7 +348,7 @@ if (defined $serial) {
     $ENV{NB_SERIAL} = $serial;
 }
 if (defined $grub_config) { $grub_config ||= "menu.lst"; }
-if (defined $grub2_config) { $grub2_config ||= "grub.cfg"; }
+if (defined $grub2_config) { $grub2_config ||= "./boot/grub/grub.cfg"; }
 
 ## Parse the novaboot script(s)
 my @scripts;
@@ -569,6 +570,10 @@ sub generate_grub2_config($$$$;$$)
 {
     my ($filename, $title, $base, $modules_ref, $preamble, $prolog) = @_;
     if ($base && substr($base,-1,1) ne '/') { $base = "$base/"; };
+    my $dir = dirname($filename);
+    make_path($dir, {
+                chmod => 0755,
+    });
     open(my $fg, '>', $filename) or die "$filename: $!";
     print $fg "$preamble\n" if $preamble;
     $title ||= 'novaboot';
@@ -1730,7 +1735,7 @@ Alias for B<--prefix>.
 =item --grub2[=I<filename>]
 
 Generate GRUB2 menu entry in I<filename>. If I<filename> is not
-specified F<grub.cfg> is used. The content of the menu entry can be
+specified F<./boot/grub/grub.cfg> is used. The content of the menu entry can be
 customized with B<--grub-preamble>, B<--grub2-prolog> or
 B<--grub_prefix> options.
 
-- 
2.39.2