metal/bsp-files/kickstarts/pre_prestaging_install_chec...

105 lines
3.7 KiB
INI

%pre --erroronfail
# Get the FD used by subshells to log output
exec {stdout}>&1
# Source common functions
. /tmp/ks-functions.sh
wlog "pre prestaging install check"
# 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
for J in $*; do case "$J" in force_install) force_install=${J};; esac; done
if [ -e /run/install/repo/ks-setup.cfg ]; then
source /run/install/repo/ks-setup.cfg
fi
# if force_install is set, install anyway. Ignore the remainder of this section.
if [ -z "${force_install}" ]; then
if [ -z "$rootfs_device" ]; then
rootfs_device=$(get_disk_dev)
fi
orig_rootfs_device=$rootfs_device
by_path_rootfs_device=$(get_by_path $rootfs_device)
rootfs_device=$(get_disk $by_path_rootfs_device)
wlog "Found rootfs $orig_rootfs_device on: $by_path_rootfs_device->$rootfs_device."
part_numbers=( $(parted -s ${rootfs_device} print | awk '$1 == "Number" {i=1; next}; i {print $1}') )
# print the partnumber info for informational purposes
for i in ${part_numbers[@]}; do
wlog "partnumber: ${i}"
done
# Get the correct rootfs prefix
ROOTFS_PART_PREFIX=${rootfs_device}
# check if rootfs part is nvme (eg. /dev/nvme0n1). The partitions have a "p" in the part prefix.
# for example, /dev/nvme0n1p1
# so we need to add the letter "p" to get the prefix.
# The part numbers will be used later in the code.
case $rootfs_device in
*"nvme"*)
ROOTFS_PART_PREFIX=${ROOTFS_PART_PREFIX}p
;;
esac
# temporary mount directory
temp_mount=/mnt/temp_mount
mkdir -p ${temp_mount}
wlog "Searching for existing installation..."
for part in "${part_numbers[@]}"; do
device=${ROOTFS_PART_PREFIX}${part}
wlog "Searching on ${device}"
# mount this part at a temporary mount point
mount ${device} ${temp_mount}
if [ $? -ne 0 ]; then
wlog "unable to mount ${device}"
continue
fi
# Check for the presence of install_uuid in one of the partitions on
# the root device
if [ -e ${temp_mount}/var/www/pages/feed/rel-xxxPLATFORM_RELEASExxx/install_uuid ]; then
wlog "Found valid installation on ${device}"
umount ${temp_mount}
# do not modify the system in any way
report_pre_failure_with_msg "Prestage rejected. Existing installation detected. Please eject the media before rebooting."
fi
umount ${temp_mount}
done
rm -rf ${temp_mount}
wlog "Installing Prestaged content. No existing installation found."
else
# force install inspite of existing installation
wlog "Force install the prestage content"
wlog "Installing Prestaged content. All existing installations will be lost."
fi
# If the size of the Platform Backup partition is greater than 30GB, parted will fail when
# it tries to reconfigure the partition in a later step. We delete the partition now so that
# parted succeeds in the later step.
partition_id=$(parted -s ${rootfs_device} print | awk '/Platform Backup/ { print $1; }')
# if the partition id is not empty or zero, then the partition actually exists.
# Delete the partition.
if [[ "${partition_id}" -ne '' && "${partition_id}" -ne "0" ]]; then
wlog "Deleting platform backup at partition ${partition_id} on ${rootfs_device}"
# Delete the platform backup partition
parted -s ${rootfs_device} rm ${partition_id}
rc=$?
if [ "${rc}" -ne "0" ]; then
wlog "Unable to delete platform backup at partition ${partition_id} on ${rootfs_device}: [exit code ${rc}]"
exit -1
else
wlog "Deleted partition ${partition_id} on ${rootfs_device}"
fi
fi
%end