[OE-core] [PATCH] initscripts: Add custom mount args for /var/lib

[Colin McAllister via lists.openembedded.org]

Adds bitbake variable to set additional mount flags for the /var/lib
overlayfs or bind mount when using a read-only root filesystem. This
can be used to set additional options like "-o nodev".

Signed-off-by: Colin McAllister <colin.mcallis...@garmin.com>
---
 .../initscripts/initscripts-1.0/read-only-rootfs-hook.sh      | 4 ++--
 meta/recipes-core/initscripts/initscripts_1.0.bb              | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git 
a/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh 
b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh
index 6706a117f7..a29773647f 100644
--- a/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh
+++ b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh
@@ -37,9 +37,9 @@ if [ "$1" = "start" ] ; then
                mkdir -p /var/volatile/.lib-work
                # Try to mount using overlay, which is much faster than copying
                # files. If that fails, fallback to the slower copy
-               if ! mount -t overlay overlay 
-olowerdir=/var/lib,upperdir=/var/volatile/lib,workdir=/var/volatile/.lib-work 
/var/lib > /dev/null 2>&1; then
+               if ! mount -t overlay overlay SED_VARLIBMOUNTARGS 
-olowerdir=/var/lib,upperdir=/var/volatile/lib,workdir=/var/volatile/.lib-work 
/var/lib > /dev/null 2>&1; then
                        cp -a /var/lib/* /var/volatile/lib
-                       mount --bind /var/volatile/lib /var/lib
+                       mount SED_VARLIBMOUNTARGS --bind /var/volatile/lib 
/var/lib
                fi
        fi
 fi
diff --git a/meta/recipes-core/initscripts/initscripts_1.0.bb 
b/meta/recipes-core/initscripts/initscripts_1.0.bb
index 4b34c6a67f..e61ac554f3 100644
--- a/meta/recipes-core/initscripts/initscripts_1.0.bb
+++ b/meta/recipes-core/initscripts/initscripts_1.0.bb
@@ -58,10 +58,12 @@ FILES:${PN}-functions = "${sysconfdir}/init.d/functions*"
 FILES:${PN}-sushell = "${base_sbindir}/sushell"
 
 HALTARGS ?= "-d -f"
+VARLIBMOUNTARGS ?= ""
 
 do_configure() {
        sed -i -e "s:SED_HALTARGS:${HALTARGS}:g" ${WORKDIR}/halt
        sed -i -e "s:SED_HALTARGS:${HALTARGS}:g" ${WORKDIR}/reboot
+       sed -i -e "s:SED_VARLIBMOUNTARGS:${VARLIBMOUNTARGS}:g" 
${WORKDIR}/read-only-rootfs-hook.sh
 }
 
 do_install () {
-- 
2.43.0


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