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| author | Chen Qi <Qi.Chen@windriver.com> | 2014-10-21 14:30:36 +0800 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2014-12-24 17:48:58 +0000 |
| commit | 2501c2f03f24fbbefd9999dd444318704d8aa8c2 (patch) | |
| tree | 29ed69930b1a8fd899fc75ee978dc259f9cc9abf | |
| parent | ebc185186c36fe839008d94dbfb779383df960c7 (diff) | |
| download | openembedded-core-2501c2f03f24fbbefd9999dd444318704d8aa8c2.tar.gz openembedded-core-2501c2f03f24fbbefd9999dd444318704d8aa8c2.tar.bz2 openembedded-core-2501c2f03f24fbbefd9999dd444318704d8aa8c2.zip | |
image.bbclass: avoid boot error on read-only systemd image
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>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -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 832c7384c6..34e9f4cba5 100644 --- a/meta/classes/image.bbclass +++ b/meta/classes/image.bbclass @@ -215,6 +215,27 @@ 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 ??= "" |