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installer script: work in progress (5)

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This commit is contained in:
Daniel Langbein 2021-05-01 13:37:28 +02:00
parent a7aa52184f
commit c41ef5c9ce
4 changed files with 113 additions and 36 deletions
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8
pkg/de-p1st-installer/de-p1st-installer.sh
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@ -1,11 +1,12 @@
#!/bin/bash
# load config
source installer.cfg || { exit 1; }
source installer.cfg || { exit 1; }
# load functions
source lib/util.sh || { exit 1; }
source lib/user-input.sh || { exit 1; }
source lib/util.sh || { exit 1; }
source lib/user-input.sh || { exit 1; }
source lib/block-device.sh || { exit 1; }
function check_network() {
@ -159,6 +160,7 @@ function main() {
get_default_mount_options || return $?
choose_mount_options || return $?
partition "${TARGET_BLOCK_DEVICE}" "$BIOS_TYPE"
# TODO: use FS_DEFAULT_MOUNT_OPTIONS and FS_MOUNT_OPTIONS in combination
}

5
pkg/de-p1st-installer/installer.cfg
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@ -8,9 +8,10 @@ LUKS_PWD=test
KERNEL=linux
# TARGET_BLOCK_DEVICE=/dev/sda
TARGET_BLOCK_DEVICE=/dev/sda
BOOT_PART_SIZE=500 # MiB
FS=BTRFS
FS_MOUNT_OPTIONS=('noatime')
CPU_VENDOR=none
BIOS_TYPE=uefi
# FS_MOUNT_OPTIONS=()

105
pkg/de-p1st-installer/lib/block-device.sh Normal file
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@ -0,0 +1,105 @@
#
# lsblk
#
# -d, --nodeps Do not print holder devices or slaves.
# -p, --paths Print full device paths.
# -l, --list Produce output in the form of a list.
# -n, --noheadings
# -x, --sort column
function get_partitions(){
# $1 block-device
# return: the following variables:
# PARTITIONS (array with one partition per entry)
# Remove first line of output (which is just the block device $1 itself)
# with sed: sed 1d
PARTITIONS="$(lsblk -pln -o name "$1" | sed 1d)" || return $?
newline_separated_to_array
}
function get_block_devices() {
# return: the following variables:
# BLOCK_DEVICES (array with one entry for each block device)
# Get list of devices, one per line
BLOCK_DEVICES="$(lsblk -dplnx size -o name | grep -Ev "boot|rpmb|loop" | tac)" || return $?
newline_separated_to_array BLOCK_DEVICES BLOCK_DEVICES || return $?
}
function get_block_devices_with_size() {
# return: the following variables:
# BLOCK_DEVICE_SIZES (array with two entries for each block device: device path and device size)
# Get list of devices and their sizes, one pair per line
# Use sed to remove multiple white spaces: sed 's|\s\s*| |'
BLOCK_DEVICE_SIZES="$(lsblk -dplnx size -o name,size | grep -Ev "boot|rpmb|loop" | sed 's|\s\s*| |' | tac)" || return $?
newline_to_space BLOCK_DEVICE_SIZES || return $?
space_separated_to_array BLOCK_DEVICE_SIZES BLOCK_DEVICE_SIZES || return $?
}
function partition() {
# $1: target block device
# $2: uefi or bios
if [ "$#" -ne 2 ]; then
echo "partition requires two args!";
return 1
fi
for i in "$@"; do
if [ -z "$i" ]; then
echo "partition: all given args must not be empty";
return 1;
fi
done
# if BOOT_PART_SIZE not given, set to default value
"${BOOT_PART_SIZE:='261'}"
# if too small, print warning and exit
if [ "${BOOT_PART_SIZE}" -lt "261" ]; then
echo "BOOT_PART_SIZE should be larger than 260!";
return 1;
fi
# As our data partition is encrypted,
# we need a separate boot partition!
case "$2" in
uefi)
# EFI boot partition
#
# Create a partition with fat32 as the file system type and set the
# esp flag on it.
parted --script "$1" -- mklabel gpt \
mkpart ESP fat32 2Mib "${BOOT_PART_SIZE}MiB" \
set 1 esp on \
mkpart primary "${BOOT_PART_SIZE}MiB" 100% || return $?
get_partitions "$1" || return $?
BOOT_PART="${PARTITIONS[0]}"
LUKS_PART="${PARTITIONS[1]}"
;;
bios)
# > On a BIOS/GPT configuration, a BIOS boot partition is required. GRUB embeds its `core.img`
# > into this partition.
# > For parted set/activate the flag bios_grub on the partition.
#
# archwiki -> GRUB#GUID_Partition_Table_(GPT)_specific_instructions
# https://www.gnu.org/software/grub/manual/grub/html_node/BIOS-installation.html#BIOS-installation
parted --script "$1" -- mklabel gpt \
mkpart primary 1MiB 2MiB \
set 1 bios_grub on \
mkpart primary 2MiB "${BOOT_PART_SIZE}MiB" \
mkpart primary "${BOOT_PART_SIZE}MiB" 100% || return $?
get_partitions "$1" || return $?
BOOT_PART="${PARTITIONS[2]}"
LUKS_PART="${PARTITIONS[3]}"
;;
*)
echo "Expected uefi or bios but got $2 instead!"
return 1
;;
esac
}

31
pkg/de-p1st-installer/lib/util.sh
View File

@ -36,34 +36,3 @@ function space_separated_to_array() {
# Without newline at last array element: https://unix.stackexchange.com/a/519917/315162
readarray -d " " -t ptr2 < <(printf '%s' "$ptr")
}
function get_block_devices() {
# return: the following variables:
# BLOCK_DEVICES (array with one entry for each block device)
# Get list of devices, one per line
BLOCK_DEVICES=$(lsblk -dplnx size -o name | grep -Ev "boot|rpmb|loop" | tac)
newline_separated_to_array BLOCK_DEVICES BLOCK_DEVICES
}
function get_block_devices_with_size() {
# return: the following variables:
# BLOCK_DEVICE_SIZES (array with two entries for each block device: device path and device size)
# Get list of devices and their sizes, one pair per line
# Use sed to remove multiple white spaces: sed 's|\s\s*| |'
BLOCK_DEVICE_SIZES="$(lsblk -dplnx size -o name,size | grep -Ev "boot|rpmb|loop" | sed 's|\s\s*| |' | tac)"
newline_to_space BLOCK_DEVICE_SIZES
space_separated_to_array BLOCK_DEVICE_SIZES BLOCK_DEVICE_SIZES
# # DEBUG
# for i in "${BLOCK_DEVICE_SIZES[@]}"; do
# echo "<$i>"
# done
# exit
}