Update wipedisk for LVM based rootfs
Now that the root filesystem is based on an LVM logical volume, discover
the root disk by searching for the boot partition.
Changes include:
- remove detection of rootfs_part/rootfs and adjust rootfs related
references with boot_disk.
- run bashate on the script and resolve indentation and syntax related
errors. Leave long-line errors alone for improved readability.
Test Plan:
PASS - run 'wipedisk', answer prompts, and ensure all partitions are
cleaned up except for the platform backup partition
PASS - run 'wipedisk --include-backup', answer prompts, and ensure all
partitions are cleaned up
PASS - run 'wipedisk --include-backup --force' and ensure all partitions
are cleaned up
Change-Id: I036ce745353b6a26bc2615ffc6e3b8955b4dd1ec
Closes-Bug: #1998204
Signed-off-by: Robert Church <robert.church@windriver.com>
This commit is contained in:
Robert Church
parent
b0066dcd27
commit
1796ed8740
@ -1,6 +1,6 @@
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#! /bin/bash
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#!/bin/bash
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#
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# Copyright (c) 2013-2017 Wind River Systems, Inc.
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# Copyright (c) 2013-2022 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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@ -15,7 +15,7 @@ usage ()
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echo "Options:"
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echo " -h display this help"
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echo " --force do not ask for confirmation"
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echo " --include-backup also removes data from platform backup directory"
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echo " --include-backup removes data from platform backup directory"
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exit 1
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}
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@ -24,26 +24,25 @@ usage ()
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# because remounting deleted filesystems at shutdown will throw errors
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unmount_fs()
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{
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local fs=$1
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local ret_code=0
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echo "Trying to unmount $fs"
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if findmnt $fs > /dev/null 2>&1 ; then
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if umount -f $fs ; then
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echo "$fs has been successfully unmounted"
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else
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echo "Error! Failed to unmount $fs"
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ret_code=1
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fi
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else
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echo "Warning! $fs is not mounted"
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ret_code=2
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fi
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return $ret_code
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local fs=$1
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local ret_code=0
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echo "Trying to unmount $fs"
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if findmnt $fs > /dev/null 2>&1 ; then
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if umount -f $fs ; then
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echo "$fs has been successfully unmounted"
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else
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echo "Error! Failed to unmount $fs"
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ret_code=1
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fi
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else
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echo "Warning! $fs is not mounted"
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ret_code=2
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fi
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return $ret_code
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}
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OPTS=`getopt -o h -l force,include-backup -- "$@"`
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if [ $? != 0 ]
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then
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if [ $? != 0 ] ; then
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exit 1
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fi
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@ -58,61 +57,54 @@ while true ; do
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esac
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done
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if [ $# != 0 ]
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then
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if [ $# != 0 ] ; then
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echo "Invalid argument. Use -h for help."
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exit 1
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fi
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declare WIPE_HDD=
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# Only wipe the rootfs and boot device disks
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rootfs_part=$(df --output=source / | tail -1)
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rootfs=$(readlink -f $(find -L /dev/disk/by-path/ -samefile $rootfs_part | sed 's/-part[0-9]*'//))
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# Only wipe the boot device disks
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boot_disk_part=$(df --output=source /boot | tail -1)
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boot_disk=$(readlink -f $(find -L /dev/disk/by-path/ -samefile $boot_disk_part | sed 's/-part[0-9]*'//))
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WIPE_HDD=$rootfs
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if [ "$rootfs" != "$boot_disk" ]
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then
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WIPE_HDD="$WIPE_HDD $boot_disk"
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if [ -z "$boot_disk" ] ; then
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echo "Boot disk not found. Failed to wipe disk."
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exit 1
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else
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WIPE_HDD="$boot_disk"
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fi
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# Due to dynamic partitioning, volume groups can have PVs across multiple disks.
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# When deleting the rootfs, we should also delete all PVs (across all disks) that
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# are part of volume groups that are also present on the rootfs.
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rootfs_vgs=$(pvdisplay -C --separator ' | ' -o pv_name,vg_name | grep $rootfs | awk '{print $3}' | sort -u)
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# When deleting the boot disk volume groups, we should also delete all PVs
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# (across all disks) that are part of volume groups that are also present on the
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# boot disk.
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boot_disk_vgs=$(pvdisplay -C --separator ' | ' -o pv_name,vg_name | grep $boot_disk | awk '{print $3}' | sort -u)
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pvs_to_delete=""
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for vg in $rootfs_vgs
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do
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for vg in $boot_disk_vgs ; do
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pv=$(pvdisplay --select "vg_name=$vg" | awk '/PV Name/{print $3}')
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pvs_to_delete="$pvs_to_delete $pv"
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done
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WIPE_HDD="$pvs_to_delete $WIPE_HDD"
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if [ ! $FORCE ]
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then
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if [ ! $FORCE ] ; then
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echo "This will result in the loss of all data on the hard drives and"
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echo "will require this node to be re-installed."
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echo "The following disks will be wiped:"
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for dev in $WIPE_HDD
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do
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for dev in $WIPE_HDD ; do
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echo " $dev"
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done | sort
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echo
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read -p "Are you absolutely sure? [y/n] " -r
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if [[ ! $REPLY =~ ^[Yy]$ ]]
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then
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if [[ ! $REPLY =~ ^[Yy]$ ]] ; then
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echo "Aborted"
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exit 1
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fi
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read -p "Type 'wipediskscompletely' to confirm: " -r
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if [[ ! $REPLY = "wipediskscompletely" ]]
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then
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if [[ ! $REPLY = "wipediskscompletely" ]] ; then
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echo "Aborted"
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exit 1
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fi
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@ -127,14 +119,11 @@ part_type_guid_str="Partition GUID code"
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# get the nodetype variable to check later if this node is a controller
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. /etc/platform/platform.conf
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for dev in $WIPE_HDD
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do
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if [[ -e $dev ]]
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then
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if [[ "$dev" == "$rootfs" && "${nodetype}" == "controller" ]]
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then
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for dev in $WIPE_HDD ; do
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if [[ -e $dev ]] ; then
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if [[ "$dev" == "$boot_disk" && "${nodetype}" == "controller" ]] ; then
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part_numbers=( $(parted -s $dev print | awk '$1 == "Number" {i=1; next}; i {print $1}') )
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for part_number in "${part_numbers[@]}"; do
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for part_number in "${part_numbers[@]}" ; do
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part=$dev$part_number
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case $part in
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*"nvme"*)
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@ -143,7 +132,7 @@ do
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esac
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sgdisk_part_info=$(flock $dev sgdisk -i $part_number $dev)
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part_type_guid=$(echo "$sgdisk_part_info" | grep "$part_type_guid_str" | awk '{print $4;}')
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if [[ "$part_type_guid" == $BACKUP_PART_GUID && ! $INCLUDE_BACKUP ]]; then
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if [[ "$part_type_guid" == $BACKUP_PART_GUID && ! $INCLUDE_BACKUP ]] ; then
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echo "Skipping wipe backup partition $part..."
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continue
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fi
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@ -153,8 +142,7 @@ do
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# Delete the first few bytes at the start and end of the partition. This is required with
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# GPT partitions, they save partition info at the start and the end of the block.
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# Skip / or we will lose access to the tools on the system.
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if [[ $part != $rootfs_part ]]
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then
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if [[ $part != $boot_disk_part ]] ; then
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unmount_fs $part
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dd if=/dev/zero of=$part bs=512 count=34
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dd if=/dev/zero of=$part bs=512 count=34 seek=$((`blockdev --getsz $part` - 34))
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@ -180,8 +168,7 @@ do
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fi
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done
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if [[ -z $WIPE_HDD ]]
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then
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if [[ -z $WIPE_HDD ]] ; then
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echo "No disks were detected."
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else
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sync
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