diff options
author | Chen Qi <Qi.Chen@windriver.com> | 2014-10-21 14:03:45 +0800 |
---|---|---|
committer | Chen Qi <Qi.Chen@windriver.com> | 2014-10-21 14:23:09 +0800 |
commit | 9170798de4e6bb33f5eef9ea5f51ae9378d2f1a8 (patch) | |
tree | b6f896b0a29bb40c924e286a7ca2764198c00a13 /meta/classes/image.bbclass | |
parent | fcbd1b19383daf5e160a864df1418130da01be28 (diff) | |
download | openembedded-core-contrib-ChenQi/systemd-read-only.tar.gz |
image.bbclass: avoid boot error on read-only systemd imageChenQi/systemd-read-only
New version of systemd implements a new feature of updating /etc
or /var when needed at boot. For details, please see link below.
Opointer.de/blog/projects/stateless.html
For now, at boot time, the systemd-sysusers.service would update user
database files (/etc/passwd, /etc/group, etc.) according to the configuration
files under /usr/lib/sysusers.d. This step is necessary for other systemd
services to work correctly. Examples of such services are systemd-resolved
and systemd-tmpfiles-setup.
The problem is that on a read-only file system, that is, if /etc is read-only,
the user database files could not be updated, causing failures of services.
This patch fixes this problem by adding users/groups at rootfs time.
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Diffstat (limited to 'meta/classes/image.bbclass')
-rw-r--r-- | meta/classes/image.bbclass | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass index 940bdb6bc0..56109a08a9 100644 --- a/meta/classes/image.bbclass +++ b/meta/classes/image.bbclass @@ -225,6 +225,27 @@ read_only_rootfs_hook () { fi fi fi + + if ${@bb.utils.contains("DISTRO_FEATURES", "systemd", "true", "false", d)}; then + # Update user database files so that services don't fail for a read-only systemd system + for conffile in ${IMAGE_ROOTFS}/usr/lib/sysusers.d/systemd.conf ${IMAGE_ROOTFS}/usr/lib/sysusers.d/systemd-remote.conf; do + [ -e $conffile ] || continue + grep -v "^#" $conffile | sed -e '/^$/d' | while read type name id comment; do + if [ "$type" = "u" ]; then + useradd_params="" + [ "$id" != "-" ] && useradd_params="$useradd_params --uid $id" + [ "$comment" != "-" ] && useradd_params="$useradd_params --comment $comment" + useradd_params="$useradd_params --system $name" + eval useradd --root ${IMAGE_ROOTFS} $useradd_params || true + elif [ "$type" = "g" ]; then + groupadd_params="" + [ "$id" != "-" ] && groupadd_params="$groupadd_params --gid $id" + groupadd_params="$groupadd_params --system $name" + eval groupadd --root ${IMAGE_ROOTFS} $groupadd_params || true + fi + done + done + fi } PACKAGE_EXCLUDE ??= "" |