From c5b0a313ab16a4cc2152693a6af90c0d3cba39e6 Mon Sep 17 00:00:00 2001
From: Andrew Engelbrecht <andrew@fsf.org>
Date: Mon, 28 Aug 2023 14:42:00 -0400
Subject: [PATCH] fix for booting isolinux config via GRUB

---
 live-usb-loader.sh | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/live-usb-loader.sh b/live-usb-loader.sh
index 4cd4b5e..d4cb7a4 100755
--- a/live-usb-loader.sh
+++ b/live-usb-loader.sh
@@ -56,6 +56,10 @@ cp -vr $ISOTMP/* $ISOTMP/.disk $DEVTMP || true
 cp -vr $DEVTMP/isolinux $DEVTMP/syslinux
 mv $DEVTMP/syslinux/isolinux.cfg $DEVTMP/syslinux/syslinux.cfg
 
+# apparently running syslinux command when /syslinux/ and /isolinux/ both exist
+# leads to GRUB not detecting the isolinux directory.
+mv $DEVTMP/isolinux $DEVTMP/isolinux.bak
+
 # Create persistency file
 # dd if=/dev/zero of=$DEVTMP/casper-rw bs=1M count=$PERSISTENCESIZE oflag=sync status=progress
 # mkfs.ext4 -L casper-rw -F $DEVTMP/casper-rw
@@ -64,14 +68,18 @@ mv $DEVTMP/syslinux/isolinux.cfg $DEVTMP/syslinux/syslinux.cfg
 umount $DEVTMP
 umount $ISOTMP
 
-rmdir $DEVTMP
-rmdir $ISOTMP
-
 # Set up bootloader, requires syslinux. version 6.04 has been tested.
 syslinux --directory /syslinux/ --install ${DEV}1
 sudo dd if=/usr/lib/SYSLINUX/mbr.bin of=${DEV}
 parted $DEV set 1 boot on
 
+mount ${DEV}1 $DEVTMP
+mv $DEVTMP/isolinux.bak $DEVTMP/isolinux
+umount $DEVTMP
+
+rmdir $DEVTMP
+rmdir $ISOTMP
+
 #eject $DEV
 sync
 
-- 
2.25.1