metal/bsp-files/kickstarts/pre_disk_setup_common.cfg
Ovidiu Poncea a56b99c846 Fix partition removal after wipe
After the wipe step, partitions are not removed when installing the load.
This commit fixes this.

Also, on some systems with NVMe, udev doesn't correctly remove the device
nodes to the deleted partitions from /dev/nvme* causing them to be seen as
non block devices, this leads to failures on format or assigning LVM PVs.

Change-Id: I3ab9f70d00a38568fc00063cdaa54ec3be48dc58
Closes-Bug: 1876374
Signed-off-by: Ovidiu Poncea <ovidiu.poncea@windriver.com>
2020-05-05 02:28:17 -04:00

198 lines
7.2 KiB
INI

%pre --erroronfail
# Source common functions
. /tmp/ks-functions.sh
# This is a really fancy way of finding the first usable disk for the
# install and not stomping on the USB device if it comes up first
# First, parse /proc/cmdline to find the boot args
set -- `cat /proc/cmdline`
for I in $*; do case "$I" in *=*) eval $I 2>/dev/null;; esac; done
if [ -z "$boot_device" ]; then
boot_device=$(get_disk_dev)
fi
if [ -z "$rootfs_device" ]; then
rootfs_device=$(get_disk_dev)
fi
# Convert to by-path
orig_rootfs_device=$rootfs_device
rootfs_device=$(get_by_path $rootfs_device)
orig_boot_device=$boot_device
boot_device=$(get_by_path $boot_device)
if [ ! -e "$rootfs_device" -o ! -e "$boot_device" ] ; then
# Touch this file to prevent Anaconda from dying an ungraceful death
touch /tmp/part-include
report_pre_failure_with_msg "ERROR: Specified installation ($orig_rootfs_device) or boot ($orig_boot_device) device is invalid."
fi
# Ensure specified device is not a USB drive
udevadm info --query=property --name=$rootfs_device |grep -q '^ID_BUS=usb' || \
udevadm info --query=property --name=$boot_device |grep -q '^ID_BUS=usb'
if [ $? -eq 0 ]; then
# Touch this file to prevent Anaconda from dying an ungraceful death
touch /tmp/part-include
report_pre_failure_with_msg "ERROR: Specified installation ($orig_rootfs_device) or boot ($orig_boot_device) device is a USB drive."
fi
# Deactivate existing volume groups to avoid Anaconda issues with pre-existing groups
vgs --noheadings -o vg_name | xargs --no-run-if-empty -n 1 vgchange -an
# Remove volumes and group for cgts-vg, if any
lvremove --force cgts-vg
pvs --select 'vg_name=cgts-vg' --noheadings -o pv_name | xargs --no-run-if-empty pvremove --force --force --yes
vgs --select 'vg_name=cgts-vg' --noheadings -o vg_name | xargs --no-run-if-empty vgremove --force
ONLYUSE_HDD=""
part_type_guid_str="Partition GUID code"
if [ "$(curl -sf http://pxecontroller:6385/v1/upgrade/$(hostname)/in_upgrade 2>/dev/null)" = "true" ]; then
# In an upgrade, only wipe the disk with the rootfs and boot partition
echo "In upgrade, wiping only $rootfs_device"
WIPE_HDD="$(get_disk $rootfs_device)"
ONLYUSE_HDD="$(basename $(get_disk $rootfs_device))"
if [ "$(get_disk $rootfs_device)" != "$(get_disk $boot_device)" ]; then
WIPE_HDD="$WIPE_HDD,$(get_disk $boot_device)"
ONLYUSE_HDD="$ONLYUSE_HDD,$(basename $(get_disk $boot_device))"
fi
else
# Make a list of all the hard drives that are to be wiped
WIPE_HDD=""
# Partition type OSD has a unique globally identifier
CEPH_OSD_GUID="4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D"
# Check if we wipe OSDs
if [ "$(curl -sf http://pxecontroller:6385/v1/ihosts/wipe_osds 2>/dev/null)" = "true" ]; then
echo "Wipe OSD data."
WIPE_CEPH_OSDS="true"
else
echo "Skip Ceph OSD data wipe."
WIPE_CEPH_OSDS="false"
fi
for f in /dev/disk/by-path/*
do
dev=$(readlink -f $f)
lsblk --nodeps --pairs $dev | grep -q 'TYPE="disk"'
if [ $? -ne 0 ]
then
continue
fi
# Avoid wiping USB drives
udevadm info --query=property --name=$dev |grep -q '^ID_BUS=usb' && continue
# Avoid wiping ceph osds if sysinv tells us so
if [ ${WIPE_CEPH_OSDS} == "false" ]; then
wipe_dev="true"
part_numbers=( `parted -s $dev print | awk '$1 == "Number" {i=1; next}; i {print $1}'` )
# Scanning the partitions looking for CEPH OSDs and
# skipping any disk found with such partitions
for part_number in "${part_numbers[@]}"; do
sgdisk_part_info=$(flock $dev sgdisk -i $part_number $dev)
part_type_guid=$(echo "$sgdisk_part_info" | grep "$part_type_guid_str" | awk '{print $4;}')
if [ "$part_type_guid" == $CEPH_OSD_GUID ]; then
echo "OSD found on $dev, skipping wipe"
wipe_dev="false"
break
fi
done
if [ "$wipe_dev" == "false" ]; then
continue
fi
fi
# Add device to the wipe list
devname=$(basename $dev)
if [ -e $dev -a "$ISO_DEV" != "../../$devname" -a "$USB_DEV" != "../../$devname" ]; then
if [ -n "$WIPE_HDD" ]; then
WIPE_HDD=$WIPE_HDD,$dev
else
WIPE_HDD=$dev
fi
fi
done
echo "Not in upgrade, wiping disks: $WIPE_HDD"
fi
ROOTFS_DISK=$(get_disk $rootfs_device)
ROOTFS_PART_PREFIX=$ROOTFS_DISK
#check if disk is nvme
case $ROOTFS_DISK in
*"nvme"*)
ROOTFS_PART_PREFIX=${ROOTFS_PART_PREFIX}p
;;
esac
BACKUP_CREATED=0
# Note that the BA5EBA11-0000-1111-2222- is the prefix used by STX and it's defined in sysinv constants.py.
# Since the 000000000001 suffix is used by custom stx LVM partitions,
# the next suffix is used for the persistent backup partition (000000000002)
BACKUP_PART_LABEL="Platform Backup"
BACKUP_PART_GUID="BA5EBA11-0000-1111-2222-000000000002"
for dev in ${WIPE_HDD//,/ }
do
# Clearing previous GPT tables or LVM data
# Delete the first few bytes at the start and end of the partition. This is required with
# GPT partitions, they save partition info at the start and the end of the block.
# Do this for each partition on the disk, as well.
part_numbers=( $(parted -s $dev print | awk '$1 == "Number" {i=1; next}; i {print $1}') )
for part_number in "${part_numbers[@]}"; do
part=$dev$part_number
case $part in
*"nvme"*)
part=${dev}p${part_number}
;;
esac
sgdisk_part_info=$(flock $dev sgdisk -i $part_number $dev)
part_type_guid=$(echo "$sgdisk_part_info" | grep "$part_type_guid_str" | awk '{print $4;}')
if [ "$part_type_guid" == $BACKUP_PART_GUID ]; then
echo "Skipping wipe backup partition $part"
BACKUP_CREATED=1
continue
fi
echo "Wiping partition $part"
dd if=/dev/zero of=$part bs=512 count=34
dd if=/dev/zero of=$part bs=512 count=34 seek=$((`blockdev --getsz $part` - 34))
parted -s $dev rm $part_number
# LP 1876374: On some nvme systems udev doesn't correctly remove the
# links to the deleted partitions from /dev/nvme* causing them to be
# seen as non block devices.
sleep 0.3 # Wait for udev to settle
rm -f $part # Delete remaining /dev node leftover
done
if [ $BACKUP_CREATED -eq 0 ] ; then
echo "Creating disk label for $dev"
parted -s $dev mktable gpt
fi
done
# Check for remaining cgts-vg PVs, which could potentially happen
# in an upgrade where we're not wiping all disks.
# If we ever create other volume groups from kickstart in the future,
# include them in this search as well.
partitions=$(pvs --select 'vg_name=cgts-vg' -o pv_name --noheading | grep -v '\[unknown\]')
for p in $partitions
do
echo "Pre-wiping $p from kickstart (cgts-vg present)"
dd if=/dev/zero of=$p bs=512 count=34
dd if=/dev/zero of=$p bs=512 count=34 seek=$((`blockdev --getsz $p` - 34))
done
let -i gb=1024*1024*1024
if [ -n "$ONLYUSE_HDD" ]; then
cat<<EOF>>/tmp/part-include
ignoredisk --only-use=$ONLYUSE_HDD
EOF
fi