[PATCH v2 3/3] installer: Run in unattended mode only on ttyS0

[Uladzimir Bely <ubely@ilbers.de>]

This fixes race between two unattended installer instances running
on serial "ttyS0" and graphic "tty1" terminals.

While one of them starts writing the disk, another one fails
and schedules reboot in 60 seconds. Depending on build machine
performance we can get incomplete installation and broken target
filesystem.

Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
---
 .../deploy-image/files/usr/bin/deploy-image-wic.sh          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
index 7f552eee..bd580694 100755
--- a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
+++ b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
@@ -10,6 +10,12 @@ SCRIPT_DIR=$( dirname -- "$( readlink -f -- "$0"; )"; )
 
 . ${SCRIPT_DIR}/../lib/deploy-image-wic/handle-config.sh
 
+if $installer_unattended; then
+    if [ "$(tty)" != "/dev/ttyS0" ]; then
+        echo "Disable unattended mode on $(tty), it's active on /dev/ttyS0"
+        installer_unattended=0
+    fi
+fi
 
 if ! $installer_unattended; then
     installer_image_uri=$(find "$installdata" -type f -iname "*.wic*" -a -not -iname "*.wic.bmap" -exec basename {} \;)
-- 
2.45.3

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