From: Chen Qi <qi.c...@windriver.com>
read_only_rootfs_hook: this funtion is invoked only if 'read-only-rootfs'
is in IMAGE_FEATURES. It tweaks some basic files and makes populate-
volatile.sh script run at rootfs time.
[YOCTO #3406]
Signed-off-by: Chen Qi <qi.c...@windriver.com>
---
meta/classes/image.bbclass | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index e494689..834497a 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -185,7 +185,6 @@ do_build[nostamp] = "1"
# task, so that we have a single fakeroot context for the whole process.
do_rootfs[umask] = "022"
-
run_intercept_scriptlets () {
if [ -d ${WORKDIR}/intercept_scripts ]; then
cd ${WORKDIR}/intercept_scripts
@@ -396,6 +395,21 @@ zap_root_password () {
mv ${IMAGE_ROOTFS}/etc/passwd.new ${IMAGE_ROOTFS}/etc/passwd
}
+# A hook function to support read-only-rootfs IMAGE_FEATURES
+read_only_rootfs_hook () {
+ # Tweak the mount option in fstab
+ sed -i '/rootfs/ s/defaults/ro/' ${IMAGE_ROOTFS}/etc/fstab
+ # Change the value of ROOTFS_READ_ONLY in /etc/default/rcS to yes
+ if [ -e ${IMAGE_ROOTFS}/etc/default/rcS ]; then
+ sed -i 's/ROOTFS_READ_ONLY=no/ROOTFS_READ_ONLY=yes/'
${IMAGE_ROOTFS}/etc/default/rcS
+ fi
+ # Run populate-volatile.sh at rootfs time to set up basic files
+ # and directories to support read-only rootfs.
+ if [ -e ${IMAGE_ROOTFS}/etc/init.d/populate-volatile.sh ]; then
+ ${IMAGE_ROOTFS}/etc/init.d/populate-volatile.sh
+ fi
+}
+
# allow openssh accept login with empty password string
openssh_allow_empty_password () {
if [ -e ${IMAGE_ROOTFS}${sysconfdir}/ssh/sshd_config ]; then
--
1.7.9.5
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