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Add disk sizing checks in PVC installer script

This commit is contained in:
Joshua Boniface 2020-05-08 17:20:22 -04:00
parent 22689cb4bf
commit 58aa2358a5
1 changed files with 36 additions and 7 deletions
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43
install.sh
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@ -46,6 +46,7 @@ disks="$(
echo "2) Please enter the disk to install the PVC base system to. This disk will be" echo "2) Please enter the disk to install the PVC base system to. This disk will be"
echo "wiped, an LVM PV created on it, and the system installed to this LVM." echo "wiped, an LVM PV created on it, and the system installed to this LVM."
echo "NOTE: PVC requires a disk of >16GB to be installed to. 32GB is the recommended minimum."
echo echo
echo "Available disks:" echo "Available disks:"
echo echo
@ -186,6 +187,34 @@ cleanup() {
} }
trap cleanup EXIT trap cleanup EXIT
echo -n "Determining block device and partition sizing... "
blockdev_size="$(( $( blockdev --getsize64 ${target_disk} ) / 1024 / 1024 / 1024 - 1))"
if [[ ${blockdev_size} -ge 58 ]]; then
# Sufficiently large system disk (>=64GB), use large partitions
size_root_lv="32"
size_ceph_lv="4"
size_swap_lv="16"
echo "found large disk, using partition sizes 32/4/16."
elif [[ ${blockdev_size} -ge 28 ]]; then
# Relatively large disk (>=32GB), use small partitions
size_root_lv="16"
size_ceph_lv="2"
size_swap_lv="8"
echo "found medium disk, using partition sizes 16/2/8."
elif [[ ${blockdev_size} -ge 13 ]]; then
# Small disk (>=16GB), use very small partitions
size_root_lv="8"
size_ceph_lv="2"
size_swap_lv="2"
echo "found small disk, using partition sizes 8/2/2."
else
# Extremely small disk, (<16GB) - bail out, this is too small
echo
echo "FAILURE - The specified disk is too small (<16GB). PVC must be installed on a disk of >16GB."
read
exit 1
fi
echo -n "Bringing up primary network interface in ${target_netformat} mode... " echo -n "Bringing up primary network interface in ${target_netformat} mode... "
case ${target_netformat} in case ${target_netformat} in
'static') 'static')
@ -228,24 +257,24 @@ echo -n "Creating LVM VG named 'vgx'... "
yes | vgcreate vgx ${target_disk}3 >&2 yes | vgcreate vgx ${target_disk}3 >&2
echo "done." echo "done."
echo -n "Creating root logical volume (32GB)... " echo -n "Creating root logical volume (${size_root_lv}GB)... "
lvcreate -L 32G -n root vgx >&2 lvcreate -L ${size_root_lv}G -n root vgx >&2
echo "done." echo "done."
echo -n "Creating filesystem on root logical volume (ext4)... " echo -n "Creating filesystem on root logical volume (ext4)... "
yes | mkfs.ext4 /dev/vgx/root >&2 yes | mkfs.ext4 /dev/vgx/root >&2
echo "done." echo "done."
echo -n "Creating ceph logical volume (8GB, ext4)... " echo -n "Creating ceph logical volume (${size_ceph_lv}GB)... "
yes | lvcreate -L 8G -n ceph vgx >&2 yes | lvcreate -L ${size_ceph_lv}G -n ceph vgx >&2
echo "done." echo "done."
echo -n "Creating filesystem on ceph logical volume (ext4)... " echo -n "Creating filesystem on ceph logical volume (ext4)... "
mkfs.ext4 /dev/vgx/ceph >&2 mkfs.ext4 /dev/vgx/ceph >&2
echo "done." echo "done."
echo -n "Creating swap logical volume (8GB)... " echo -n "Creating swap logical volume (${size_swap_lv}GB)... "
lvcreate -L 8G -n swap vgx >&2 lvcreate -L ${size_swap_lv}G -n swap vgx >&2
echo "done." echo "done."
echo -n "Creating swap on swap logical volume... " echo -n "Creating swap space on swap logical volume... "
yes | mkswap -f /dev/vgx/swap >&2 yes | mkswap -f /dev/vgx/swap >&2
echo "done." echo "done."