mkefidisk: Boot with ro kernel parameter instead of rw

There is no need to boot with "rw". Booting with "ro" will allow for
fsck to be run during boot, and a proper /etc/fstab will still ensure
the rootfs is "rw" by the time the user can interact with the system.

Change the "rw" to "ro" in the kernel parameters specified in the
generated grub.cfg file.

Fixes [YOCTO 4036] mkefidisk.sh hardcodes 'rw' as root mount option

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/scripts/contrib/mkefidisk.sh b/scripts/contrib/mkefidisk.sh
index c68c2249f3e9edb932c0994e3e1fd78dd9886904..9275ecf17c3da5fae2e8a19d7948cb651547d407 100755 (executable)
--- a/scripts/contrib/mkefidisk.sh
+++ b/scripts/contrib/mkefidisk.sh
@@ -253,7 +253,7 @@ sed -i "s/ LABEL=[^ ]*/ /" $GRUBCFG
 # Replace the ramdisk root (if any) with the install device and include other
 # kernel parameters
 sed -i "s@ root=[^ ]*@ @" $GRUBCFG
-sed -i "s@vmlinuz @vmlinuz root=$TARGET_ROOTFS rw $ROOTWAIT quiet @" $GRUBCFG
+sed -i "s@vmlinuz @vmlinuz root=$TARGET_ROOTFS ro $ROOTWAIT quiet @" $GRUBCFG
 
 # Provide a startup.nsh script for older firmware with non-standard boot
 # directories and paths.