Adding disk-meta cleanup commissioning script for MAAS.
- It is required in rare cases where LVM and MD arrays
has been used together and node should be reprovisioned again.
Prod-related: PROD-26418 (PROD:26418)
Change-Id: I06feb3c01bf34bf7039c11c82c68feddf048f3d9
diff --git a/maas/files/00-maas-01-disk-cleanup b/maas/files/00-maas-01-disk-cleanup
new file mode 100755
index 0000000..6864c88
--- /dev/null
+++ b/maas/files/00-maas-01-disk-cleanup
@@ -0,0 +1,31 @@
+#!/bin/bash
+set -x
+
+dmsetup remove_all -f || true
+[ -f /proc/mdstat ] && grep blocks -B1 /proc/mdstat | grep ' : ' | cut -f1 -d' ' | xargs -I{} mdadm -R {}
+lvdisplay -a | awk '/LV Path.*/{print $3}' | xargs -I{} bash -c "echo \"Removing lv {}\"; lvremove --force {} || true"; sync
+vgdisplay | awk '/VG Name.*/{print $3}' | xargs -I{} bash -c "echo \"Removing vg {}\"; vgremove --force {} || true"; sync
+pvdisplay | awk '/PV Name.*/{print $3}' | xargs -I{} bash -c "echo \"Removing pv {}\"; pvremove --force {} || true"; sync
+mdadm --detail --scan | cut -d' ' -f2 | xargs -I{} bash -c "mdadm --stop {}"
+mdadm -Evs | grep -Eo 'devices=/\S+' | cut -d'=' -f2 | tr ',' '\n' | xargs -I{} mdadm --zero-superblock {}
+sync
+
+for _vol in $(ls /dev/mapper/* |grep -v control); do
+ dd if=/dev/zero of=${_vol} bs=1M count=1
+done; sync
+
+for _part in $(awk '/dm-/{print $4}' /proc/partitions); do
+ pvremove -ff ${_part}
+ dd if=/dev/zero of=${_part} bs=1M count=1
+done; sync
+
+for _dev in $(find /dev -name sd*) ; do
+ echo "Removing raid|lvm superblock ${_dev}"
+ mdadm --zero-superblock ${_dev} || true
+ pvremove -ffy ${_dev}* || true
+ dd if=/dev/zero of=${_dev} bs=1M count=1
+ sync
+done
+
+dmsetup remove_all -f || true
+sync