[PATCH v2] In expand last partition wait for udev have finished

[PATCH v2] In expand last partition wait for udev have finished

[roberto.foglietta]

From: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>

bugfix, expand last partition, wait for udev completion

On some hardware the udev did not created the links to the disk partitions
while this script is working thus it fails. This patch fixes that cases.

v2: as underlined by Tobias this script requires systemd-udevd.service and
it can safely runs only after that service has been started otherwise might
fail. This dependency will reorder the boot procedure but not slow down it
unless the hardware is slow to get mapped by udev but in that case resize
the last partition would have failed. Thus, no regression are expected.

Signed-off-by: Roberto A. Foglietta <roberto.foglietta@gmail.com>
---
 .../expand-on-first-boot/files/expand-last-partition.sh         | 2 ++
 .../expand-on-first-boot/files/expand-on-first-boot.service     | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh b/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh
index 57055cc..4d55645 100755
--- a/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh
+++ b/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh
@@ -9,6 +9,8 @@
 
 set -e
 
+udevadm settle
+
 ROOT_DEV="$(findmnt / -o source -n)"
 ROOT_DEV_NAME=${ROOT_DEV##*/}
 ROOT_DEV_SLAVE=$(find /sys/block/"${ROOT_DEV_NAME}"/slaves -mindepth 1 -print -quit 2>/dev/null || true)
diff --git a/meta/recipes-support/expand-on-first-boot/files/expand-on-first-boot.service b/meta/recipes-support/expand-on-first-boot/files/expand-on-first-boot.service
index fda5001..2c120c4 100644
--- a/meta/recipes-support/expand-on-first-boot/files/expand-on-first-boot.service
+++ b/meta/recipes-support/expand-on-first-boot/files/expand-on-first-boot.service
@@ -7,7 +7,9 @@
 Description=Expand last partition
 DefaultDependencies=no
 Conflicts=shutdown.target
+Requires=systemd-udevd.service
 After=systemd-remount-fs.service
+After=systemd-udevd.service
 Before=local-fs-pre.target shutdown.target
 ConditionPathIsReadWrite=/etc
 
-- 
2.34.1


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