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author | Patrick Williams <patrick@stwcx.xyz> | 2016-08-17 14:31:25 -0500 |
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committer | Patrick Williams <patrick@stwcx.xyz> | 2016-08-22 16:43:26 +0000 |
commit | 60f9d69e016b11c468c98ea75ba0a60c44afbbc4 (patch) | |
tree | ecb49581a9e41a37943c22cd9ef3f63451b20ee7 /import-layers/yocto-poky/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh | |
parent | e18c61205e0234b03697129c20cc69c9b3940efc (diff) | |
download | blackbird-openbmc-60f9d69e016b11c468c98ea75ba0a60c44afbbc4.tar.gz blackbird-openbmc-60f9d69e016b11c468c98ea75ba0a60c44afbbc4.zip |
yocto-poky: Move to import-layers subdir
We are going to import additional layers, so create a subdir to
hold all of the layers that we import with git-subtree.
Change-Id: I6f732153a22be8ca663035c518837e3cc5ec0799
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh')
-rw-r--r-- | import-layers/yocto-poky/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh b/import-layers/yocto-poky/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh new file mode 100644 index 000000000..1a0328d63 --- /dev/null +++ b/import-layers/yocto-poky/meta/recipes-core/initscripts/initscripts-1.0/read-only-rootfs-hook.sh @@ -0,0 +1,38 @@ +#!/bin/sh + +. /etc/default/rcS + +[ "$ROOTFS_READ_ONLY" = "no" ] && exit 0 + +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" +} + +if [ "$1" = "start" ] ; then + if [ `is_on_read_only_partition /var/lib` = "yes" ]; then + grep -q "tmpfs /var/volatile" /proc/mounts || mount /var/volatile + mkdir -p /var/volatile/lib + cp -a /var/lib/* /var/volatile/lib + mount --bind /var/volatile/lib /var/lib + fi +fi + |