mirrors/poky
1
0
Fork 0
mirror of https://git.yoctoproject.org/poky synced 2026-04-21 21:32:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

image.bbclass: avoid boot error on read-only systemd image

Browse Source 
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.

(From OE-Core rev: c7b9611ad0ead17a624fc73a60c321ff249c2214)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Chen Qi
2014-10-21 14:30:36 +08:00
committed by Richard Purdie
parent e13f2681b7
commit 9fc095a439
1 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
meta/classes/image.bbclass
View File

@@ -216,6 +216,27 @@ 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 ??= ""