From 1cb322896b600878b330951ef4e2cbba837ae2b6 Mon Sep 17 00:00:00 2001
From: Eric Hameleers <alien@slackware.com>
Date: Thu, 16 Mar 2023 19:53:44 +0100
Subject: iso2usb.sh: disable metadata_csum_seed in ext4 filesystem

Grub 2.0.6 stumbles over metadata_csum_seed which is enabled by default
since E2fsprogs 1.47.0, so let's disable that too
---
 iso2usb.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/iso2usb.sh b/iso2usb.sh
index 16b4bc0..9c81101 100644
--- a/iso2usb.sh
+++ b/iso2usb.sh
@@ -723,7 +723,14 @@ if [ $REFRESH -eq 0 ]; then
   else
     FEAT_64BIT="-O ^64bit"
   fi
-  tune2fs -c 0 -i 0 -m 0 ${FEAT_64BIT} ${TARGETP3}
+  # Grub 2.0.6 stumbles over metadata_csum_seed which is enabled by default
+  # since E2fsprogs 1.47.0, so let's disable that too:
+  if ! tune2fs -O ^metadata_csum_seed ${TARGETP3} 1>/dev/null 2>/dev/null ; then
+    FEAT_CSUM=""
+  else
+    FEAT_CSUM="-O ^metadata_csum_seed"
+  fi
+  tune2fs -c 0 -i 0 -m 0 ${FEAT_64BIT} ${FEAT_CSUM} ${TARGETP3}
 else
   # Determine partition names independently of storage architecture:
   TARGETP1=$(fdisk -l $TARGET |grep ^$TARGET |cut -d' ' -f1 |grep -E '[^0-9]1$')
-- 
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