* [PATCH V2 6/6] initscripts: add read-only-rootfs-hook.sh script [not found] <cover.1359433618.git.Qi.Chen@windriver.com> @ 2013-01-29 6:17 ` Qi.Chen 2013-01-29 6:21 ` ChenQi 0 siblings, 1 reply; 2+ messages in thread From: Qi.Chen @ 2013-01-29 6:17 UTC (permalink / raw) To: openembedded-core; +Cc: Zhenfeng.Zhao From: Chen Qi <Qi.Chen@windriver.com> Add read-only-rootfs-hook.sh script to support a read-only rootfs. This script makes a union mount of /var/lib and /var/volatile/lib, making /var/lib directory writable. [YOCTO #3406] Signed-off-by: Chen Qi <Qi.Chen@windriver.com> --- .../initscripts-1.0/read-only-rootfs-hook.sh | 19 +++++++++++++++++++ meta/recipes-core/initscripts/initscripts_1.0.bb | 3 +++ 2 files changed, 22 insertions(+) create mode 100644 meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh 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 new file mode 100644 index 0000000..3a295ee --- /dev/null +++ b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh @@ -0,0 +1,19 @@ +#!/bin/sh + +. /etc/default/rcS + +[ "$ROOTFS_READ_ONLY" = "no" ] && exit 0 + +# Make sure unionfs is in /proc/filesystems +if ! grep -q unionfs /proc/filesystems; then + echo "ERROR: unionfs not supported by kernel!" + exit 1 +fi + +mkdir -p /var/volatile/lib +mount -t unionfs -o dirs=/var/volatile/lib:/var/lib=ro none /var/lib + +if [ $? != 0 ]; then + echo "ERROR: Union mount failed!" + exit 1 +fi diff --git a/meta/recipes-core/initscripts/initscripts_1.0.bb b/meta/recipes-core/initscripts/initscripts_1.0.bb index 69b9bfb..68f8034 100644 --- a/meta/recipes-core/initscripts/initscripts_1.0.bb +++ b/meta/recipes-core/initscripts/initscripts_1.0.bb @@ -28,6 +28,7 @@ SRC_URI = "file://functions \ file://sysfs.sh \ file://device_table.txt \ file://populate-volatile.sh \ + file://read-only-rootfs-hook.sh \ file://volatiles \ file://save-rtc.sh \ file://GPLv2.patch" @@ -85,6 +86,7 @@ do_install () { install -m 0755 ${WORKDIR}/devpts ${D}${sysconfdir}/default install -m 0755 ${WORKDIR}/sysfs.sh ${D}${sysconfdir}/init.d install -m 0755 ${WORKDIR}/populate-volatile.sh ${D}${sysconfdir}/init.d + install -m 0755 ${WORKDIR}/read-only-rootfs-hook.sh ${D}${sysconfdir}/init.d install -m 0755 ${WORKDIR}/save-rtc.sh ${D}${sysconfdir}/init.d install -m 0644 ${WORKDIR}/volatiles ${D}${sysconfdir}/default/volatiles/00_core @@ -116,6 +118,7 @@ do_install () { update-rc.d -r ${D} bootmisc.sh start 55 S . update-rc.d -r ${D} sysfs.sh start 02 S . update-rc.d -r ${D} populate-volatile.sh start 37 S . + update-rc.d -r ${D} read-only-rootfs-hook.sh start 41 S . update-rc.d -r ${D} devpts.sh start 38 S . if [ "${TARGET_ARCH}" = "arm" ]; then update-rc.d -r ${D} alignment.sh start 06 S . -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH V2 6/6] initscripts: add read-only-rootfs-hook.sh script 2013-01-29 6:17 ` [PATCH V2 6/6] initscripts: add read-only-rootfs-hook.sh script Qi.Chen @ 2013-01-29 6:21 ` ChenQi 0 siblings, 0 replies; 2+ messages in thread From: ChenQi @ 2013-01-29 6:21 UTC (permalink / raw) To: openembedded-core V2 is a rebase against the latest master branch, which solves some conflicts in initscripts_1.0.bb file. Because only this patch [6/6] had conflicts, I only sent out version 2 of this patch. Cheers, Chen Qi On 01/29/2013 02:17 PM, Qi.Chen@windriver.com wrote: > From: Chen Qi <Qi.Chen@windriver.com> > > Add read-only-rootfs-hook.sh script to support a read-only rootfs. > This script makes a union mount of /var/lib and /var/volatile/lib, > making /var/lib directory writable. > > [YOCTO #3406] > > Signed-off-by: Chen Qi <Qi.Chen@windriver.com> > --- > .../initscripts-1.0/read-only-rootfs-hook.sh | 19 +++++++++++++++++++ > meta/recipes-core/initscripts/initscripts_1.0.bb | 3 +++ > 2 files changed, 22 insertions(+) > create mode 100644 meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh > > diff --git a/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh > new file mode 100644 > index 0000000..3a295ee > --- /dev/null > +++ b/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh > @@ -0,0 +1,19 @@ > +#!/bin/sh > + > +. /etc/default/rcS > + > +[ "$ROOTFS_READ_ONLY" = "no" ] && exit 0 > + > +# Make sure unionfs is in /proc/filesystems > +if ! grep -q unionfs /proc/filesystems; then > + echo "ERROR: unionfs not supported by kernel!" > + exit 1 > +fi > + > +mkdir -p /var/volatile/lib > +mount -t unionfs -o dirs=/var/volatile/lib:/var/lib=ro none /var/lib > + > +if [ $? != 0 ]; then > + echo "ERROR: Union mount failed!" > + exit 1 > +fi > diff --git a/meta/recipes-core/initscripts/initscripts_1.0.bb b/meta/recipes-core/initscripts/initscripts_1.0.bb > index 69b9bfb..68f8034 100644 > --- a/meta/recipes-core/initscripts/initscripts_1.0.bb > +++ b/meta/recipes-core/initscripts/initscripts_1.0.bb > @@ -28,6 +28,7 @@ SRC_URI = "file://functions \ > file://sysfs.sh \ > file://device_table.txt \ > file://populate-volatile.sh \ > + file://read-only-rootfs-hook.sh \ > file://volatiles \ > file://save-rtc.sh \ > file://GPLv2.patch" > @@ -85,6 +86,7 @@ do_install () { > install -m 0755 ${WORKDIR}/devpts ${D}${sysconfdir}/default > install -m 0755 ${WORKDIR}/sysfs.sh ${D}${sysconfdir}/init.d > install -m 0755 ${WORKDIR}/populate-volatile.sh ${D}${sysconfdir}/init.d > + install -m 0755 ${WORKDIR}/read-only-rootfs-hook.sh ${D}${sysconfdir}/init.d > install -m 0755 ${WORKDIR}/save-rtc.sh ${D}${sysconfdir}/init.d > install -m 0644 ${WORKDIR}/volatiles ${D}${sysconfdir}/default/volatiles/00_core > > @@ -116,6 +118,7 @@ do_install () { > update-rc.d -r ${D} bootmisc.sh start 55 S . > update-rc.d -r ${D} sysfs.sh start 02 S . > update-rc.d -r ${D} populate-volatile.sh start 37 S . > + update-rc.d -r ${D} read-only-rootfs-hook.sh start 41 S . > update-rc.d -r ${D} devpts.sh start 38 S . > if [ "${TARGET_ARCH}" = "arm" ]; then > update-rc.d -r ${D} alignment.sh start 06 S . ^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <cover.1359433618.git.Qi.Chen@windriver.com>
2013-01-29 6:17 ` [PATCH V2 6/6] initscripts: add read-only-rootfs-hook.sh script Qi.Chen
2013-01-29 6:21 ` ChenQi
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