Add a call to "udevadm settle" in write_image.sh

derekhiggins · dtantsur · commit bc13adfa4929 · 2021-04-26T09:01:18.000Z
After GPT and MBR are destroyed systemd-udevd gets triggered which may hold /dev/sda open preventing qemu-img from writting its image. Story: 2008830 Task: 42312 Change-Id: I6105192a16fcb7f6898910e8d0ab824d731d491d (cherry picked from commit 9c3fbfd)
diff --git a/ironic_python_agent/shell/write_image.sh b/ironic_python_agent/shell/write_image.sh
@@ -43,6 +43,7 @@ DEVICE_SECTORS_COUNT=`blockdev --getsz $DEVICE`
 dd bs=512 if=/dev/zero of=$DEVICE count=33
 dd bs=512 if=/dev/zero of=$DEVICE count=33 seek=$((${DEVICE_SECTORS_COUNT} - 33))
 sgdisk -Z $DEVICE
+udevadm settle
 
 log "Imaging $IMAGEFILE to $DEVICE"
 
diff --git a/releasenotes/notes/udevadm-settle-9d3e5f1f20211857.yaml b/releasenotes/notes/udevadm-settle-9d3e5f1f20211857.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Adds a call to "udevadm settle" in write_image.sh.
+    After GPT and MBR are destroyed systemd-udevd gets triggered
+    which may hold /dev/sda open preventing qemu-img from writting
+    its image.
