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Merged config and pre-install
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Suikan
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4 changed files with 116 additions and 135 deletions
218
ubuntu/1-pre-install.sh
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218
ubuntu/1-pre-install.sh
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#!/bin/bash
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# Storage device to install the linux.
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export DEV="/dev/sda"
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# Whether you want to erase all contents of the storage device or not.
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# 1 : Yes, I want to erase all.
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# 2 : No, I want to add to the existing Linux distributions.
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export ERASEALL=1
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# Logical Volume name for your Linux installation. Keep it unique from other distribution.
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export LVROOTNAME="ubuntu"
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# Logical volume size of the Linux installation.
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# 50% mean, new logical volume will use 50% of the free space in the LVM volume group.
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export LVROOTSIZE="50%FREE"
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# Set the size of EFI partition and swap partition. The unit is Byte. you can use M,G... notation.
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export EFISIZE="100M"
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export LVSWAPSIZE="8G"
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# Usually, these names can be left untouched.
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# If you change, keep them consistent through all distributions in your system.
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export CRYPTPARTNAME="luks_volume"
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export VGNAME="vg1"
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export LVSWAPNAME="swap"
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# ********************** DO NOT edit following lines ******************************
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# Detect firmware type. 1 : EFI, 0 : BIOS
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if [ -d /sys/firmware/efi ]; then
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export ISEFI=1 # Yes, EFI
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else
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export ISEFI=0 # No, BIOS
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fi # is EFI firmaare?
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# Set partition number based on the firmware type
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if [ ${ISEFI} -eq 1 ] ; then
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# EFI firmware
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export EFIPARTITION=1
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export CRYPTPARTITION=2
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else
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# BIOS firmware
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export CRYPTPARTITION=1
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fi # EFI firmware
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# Varidate whether script is executed as sourced or not
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(return 0 2>/dev/null) && sourced=1 || sourced=0
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if [ $sourced -eq 0 ] ; then
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cat <<HEREDOC 1>&2
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***** ERROR : Must execute as source *****
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Execute as following :
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source 1-pre-install.sh
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Installation terminated.
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HEREDOC
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exit # use "exit" instead of "return", if not "sourced" execusion
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fi # "sourced" validation
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# ----- Confirmations -----
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# Distribution check
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uname -a | grep ubuntu -i > /dev/null
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if [ $? -eq 1 ] ; then # "Ubuntu" is not found in the OS name.
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uname -a
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echo "This system seems to be netiher Ubuntu nor Ubuntu variants, while this script is dediated to the Ubuntu or its variants"
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echo "Are you sure you want to run this script for installation? [Y/N]"
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read YESNO
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if [ ${YESNO} != "Y" -a ${YESNO} != "y" ] ; then
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cat <<HEREDOC 1>&2
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Installation terminated.
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HEREDOC
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return
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fi # if YES
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fi # "Ubuntu" is not found in the OS name.
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# For surre ask the config.sh is edited
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echo "Did you edit config.sys? Are you ready to install? [Y/N]"
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read YESNO
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if [ ${YESNO} != "Y" -a ${YESNO} != "y" ] ; then
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cat <<HEREDOC 1>&2
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Installation terminated.
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HEREDOC
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return
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fi # if YES
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# For sure ask ready to erase.
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if [ ${ERASEALL} -eq 1 ] ; then
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echo "Are you sure you want to erase entire ${DEV}? [Y/N]"
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read YESNO
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if [ ${YESNO} != "Y" -a ${YESNO} != "y" ] ; then
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cat <<HEREDOC 1>&2
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Check config.sh. The variable ERASEALL is ${ERASEALL}.
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Installation terminated.
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HEREDOC
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return
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fi # if YES
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fi # if erase all
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# ----- Set Passphrase -----
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# Input passphrase
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echo "Type passphrase for the disk encryption."
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read -sr PASSPHRASE
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export PASSPHRASE
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echo "Type passphrase again, to confirm."
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read -sr PASSPHRASE_C
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# Validate whether both are indentical or not
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if [ ${PASSPHRASE} != ${PASSPHRASE_C} ] ; then
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cat <<HEREDOC 1>&2
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***** ERROR : Passphrase doesn't match *****
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Installation terminated.
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HEREDOC
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return
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fi # passphrase validation
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# ----- Erase entire disk, create partitions, format them and encrypt the LUKS partition -----
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if [ ${ERASEALL} -eq 1 ] ; then
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# Assign specified space and rest of disk to the EFI and LUKS partition, respectively.
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if [ ${ISEFI} -eq 1 ] ; then
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# Zap existing partition table and create new GPT
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echo "...Initialize ${DEV} with GPT."
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sgdisk --zap-all "${DEV}"
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# Create EFI partition and format it
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echo "...Create an EFI partition on ${DEV}."
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sgdisk --new=${EFIPARTITION}:0:+${EFISIZE} --change-name=${EFIPARTITION}:"EFI System" --typecode=${EFIPARTITION}:ef00 "${DEV}"
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echo "...Format the EFI parttion."
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mkfs.vfat -F 32 -n EFI-SP "${DEV}${EFIPARTITION}"
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# Create Linux partition
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echo "...Create a Linux partition on ${DEV}."
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sgdisk --new=${CRYPTPARTITION}:0:0 --change-name=${CRYPTPARTITION}:"Linux LUKS" --typecode=${CRYPTPARTITION}:8309 "${DEV}"
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# Then print them
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sgdisk --print "${DEV}"
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else
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# Zap existing partition table
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echo "...Erase partition table of ${DEV}."
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dd if=/dev/zero of=${DEV} bs=512 count=1
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# Create MBR and allocate max storage for Linux partition
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echo "...Create a Linux partition on ${DEV} with MBR."
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sfdisk ${DEV} <<HEREDOC
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2M,,L
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HEREDOC
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fi # if EFI firmware
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# Encrypt the partition to install Linux
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echo "...Initialize ${DEV}${CRYPTPARTITION} as crypt partition"
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printf %s "${PASSPHRASE}" | cryptsetup luksFormat --type=luks1 --key-file - --batch-mode "${DEV}${CRYPTPARTITION}"
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fi # if erase all
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# ----- Open the LUKS partition -----
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# Open the crypt partition.
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echo "...Open a crypt partition ${DEV}${CRYPTPARTITION} as \"${CRYPTPARTNAME}\""
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printf %s "${PASSPHRASE}" | cryptsetup open -d - "${DEV}${CRYPTPARTITION}" ${CRYPTPARTNAME}
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# Check whether successful open. If mapped, it is successful.
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if [ ! -e /dev/mapper/${CRYPTPARTNAME} ] ; then
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cat <<HEREDOC 1>&2
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***** ERROR : Cannot open LUKS volume "${CRYPTPARTNAME}" on ${DEV}${CRYPTPARTITION}. *****
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Check passphrase and config.txt
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Installation terminated.
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HEREDOC
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return
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fi # if crypt volume is unable to open
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# ----- Configure the LVM in LUKS volume -----
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# Check volume group ${VGNAME} exist or not
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vgdisplay -s ${VGNAME} &> /dev/null
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if [ $? -eq 0 ] ; then # is return value 0? ( exist ?)
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echo "...Volume group ${VGNAME} already exist. Skipped to create"
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else
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echo "...Initialize a physical volume on \"${CRYPTPARTNAME}\""
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pvcreate /dev/mapper/${CRYPTPARTNAME}
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echo "...And then create Volume group \"${VGNAME}\"."
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vgcreate ${VGNAME} /dev/mapper/${CRYPTPARTNAME}
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fi # if /dev/volume-groupt not exist
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# Create a SWAP Logical Volume on VG, if it doesn't exist
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if [ -e /dev/mapper/${VGNAME}-${LVSWAPNAME} ] ; then
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echo "...Swap volume already exist. Skipped to create"
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else
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echo "...Create logical volume \"${LVSWAPNAME}\" on \"${VGNAME}\"."
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lvcreate -L ${LVSWAPSIZE} -n ${LVSWAPNAME} ${VGNAME}
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fi # if /dev/mapper/swap volume already exit.
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# Create a ROOT Logical Volume on VG.
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if [ -e /dev/mapper/${VGNAME}-${LVROOTNAME} ] ; then
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cat <<HEREDOC 1>&2
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***** ERROR : Logical volume "${VGNAME}-${LVROOTNAME}" already exists. *****
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Check LVROOTNAME environment variable in config.txt.
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Installation terminated.
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HEREDOC
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return
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else
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echo "...Create logical volume \"${LVROOTNAME}\" on \"${VGNAME}\"."
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lvcreate -l ${LVROOTSIZE} -n ${LVROOTNAME} ${VGNAME}
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fi # if the root volun already exist
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# Finishing message
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cat <<HEREDOC
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...1-pre-install.sh : Done.
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...Next, open the Ubiquity installer, map the /, swap, EFI partition( if needed ) and start installation.
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...And then, execute "source 2-para-install.sh" during the Ubiquity copies files.
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HEREDOC
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