diff options
| author |   Chen Qi <Qi.Chen@windriver.com> | 2014-03-27 02:34:41 +0000 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-04-25 17:11:50 +0100 |
| commit | 99cc96eaee28bfde89096689b1296d28937ead88 (patch) | |
| tree | a2b3ea852511126a6bd552f09dec8c73a11bae96 /meta/recipes-connectivity/bind/bind | |
| parent | 354e25fe51a8e85122898d1849008ace5dbe9461 (diff) | |
| download | openembedded-core-99cc96eaee28bfde89096689b1296d28937ead88.tar.gz | |
bind: add support for read-only rootfs
This patch adds support for read-only rootfs to the bind service.
Basically it just bind mounts several directories so that the bind
service could start correctly without reporting any error.
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-connectivity/bind/bind')
| -rw-r--r-- | meta/recipes-connectivity/bind/bind/init.d-add-support-for-read-only-rootfs.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/meta/recipes-connectivity/bind/bind/init.d-add-support-for-read-only-rootfs.patch b/meta/recipes-connectivity/bind/bind/init.d-add-support-for-read-only-rootfs.patch new file mode 100644 index 0000000000..11db95ede1 --- /dev/null +++ b/meta/recipes-connectivity/bind/bind/init.d-add-support-for-read-only-rootfs.patch @@ -0,0 +1,65 @@ +Subject: init.d: add support for read-only rootfs + +Upstream-Status: Inappropriate [oe specific] + +Signed-off-by: Chen Qi <Qi.Chen@windriver.com> +--- + init.d | 40 ++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 40 insertions(+) + +diff --git a/init.d b/init.d +index 0111ed4..24677c8 100644 +--- a/init.d ++++ b/init.d +@@ -6,8 +6,48 @@ PATH=/sbin:/bin:/usr/sbin:/usr/bin + # Don't modify this line, change or create /etc/default/bind9. + OPTIONS="" + ++test -f /etc/default/rcS && . /etc/default/rcS + test -f /etc/default/bind9 && . /etc/default/bind9 + ++# This function is here because it's possible that /var and / are on different partitions. ++is_on_read_only_partition () { ++ DIRECTORY=$1 ++ dir=`readlink -f $DIRECTORY` ++ while true; do ++ if [ ! -d "$dir" ]; then ++ echo "ERROR: $dir is not a directory" ++ exit 1 ++ else ++ for flag in `awk -v dir=$dir '{ if ($2 == dir) { print "FOUND"; split($4,FLAGS,",") } }; \ ++ END { for (f in FLAGS) print FLAGS[f] }' < /proc/mounts`; do ++ [ "$flag" = "FOUND" ] && partition="read-write" ++ [ "$flag" = "ro" ] && { partition="read-only"; break; } ++ done ++ if [ "$dir" = "/" -o -n "$partition" ]; then ++ break ++ else ++ dir=`dirname $dir` ++ fi ++ fi ++ done ++ [ "$partition" = "read-only" ] && echo "yes" || echo "no" ++} ++ ++bind_mount () { ++ olddir=$1 ++ newdir=$2 ++ mkdir -p $olddir ++ cp -a $newdir/* $olddir ++ mount --bind $olddir $newdir ++} ++ ++# Deal with read-only rootfs ++if [ "$ROOTFS_READ_ONLY" = "yes" ]; then ++ [ "$VERBOSE" != "no" ] && echo "WARN: start bind service in read-only rootfs" ++ [ `is_on_read_only_partition /etc/bind` = "yes" ] && bind_mount /var/volatile/bind/etc /etc/bind ++ [ `is_on_read_only_partition /var/named` = "yes" ] && bind_mount /var/volatile/bind/named /var/named ++fi ++ + test -x /usr/sbin/rndc || exit 0 + + case "$1" in +-- +1.7.9.5 + |