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 <[email protected]> --- meta/classes/image.bbclass | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass index 940bdb6..56109a0 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 ??= "" -- 1.9.1 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
