mirror of
https://github.com/suikan4github/kaiten-yaki.git
synced 2025-12-20 02:21:17 -03:00
353 lines
11 KiB
Bash
353 lines
11 KiB
Bash
#!/bin/bash
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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 ubuntu-kaiten-yaki.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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# Load configuration parameter
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source config.sh
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# *******************************************************************************
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# Confirmation and Passphrase setting
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# *******************************************************************************
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# Distribution check
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if ! uname -a | grep ubuntu -i > /dev/null ; then # "Ubuntu" is not found in the OS name.
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echo "*******************************************************************************"
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uname -a
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cat <<HEREDOC
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*******************************************************************************
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This system seems to be not Ubuntu, while this script is dediated to the Ubuntu.
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Are you sure you want to run this script? [Y/N]
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HEREDOC
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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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# Sanity check for volume group name
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if echo ${VGNAME} | grep "-" -i > /dev/null ; then # "-" is found in the volume group name.
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cat <<HEREDOC 1>&2
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***** ERROR : VGNAME is "${VGNAME}" *****
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THe "-" is not allowed in the volume name.
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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 # "-" is found in the volume group name.
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# Sanity check for root volume name
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if echo ${LVROOTNAME} | grep "-" -i > /dev/null ; then # "-" is found in the volume name.
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cat <<HEREDOC 1>&2
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***** ERROR : LVROOTNAME is "${LVROOTNAME}" *****
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THe "-" is not allowed in the volume name.
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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 # "-" is found in the volume name.
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# Sanity check for swap volume name
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if echo ${LVSWAPNAME} | grep "-" -i > /dev/null ; then # "-" is found in the volume name.
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cat <<HEREDOC 1>&2
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***** ERROR : LVSWAPNAME is "${LVSWAPNAME}" *****
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THe "-" is not allowed in the volume name.
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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 # "-" is found in the volume name.
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# For surre ask the config.sh is edited
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cat <<HEREDOC
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The destination logical volume label is "${LVROOTNAME}"
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"${LVROOTNAME}" uses ${LVROOTSIZE} of the LVM volume group.
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Are you ready to install? [Y/N]
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HEREDOC
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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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# *******************************************************************************
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# Pre-install stage
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# *******************************************************************************
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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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if vgdisplay -s ${VGNAME} &> /dev/null ; then # exist ?
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echo "...Volume group ${VGNAME} already exist. Skipped to create. No problem."
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else
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echo "...Initialize a physical volume on \"${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 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. No problem."
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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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# *******************************************************************************
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# Para-install stage
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# *******************************************************************************
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cat <<HEREDOC
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******************************************************************************
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The pre-install process is done. We are ready to install the Linux to the
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target storage device. By pressing return key, Ubuntu Ubiquity installer
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starts.
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Please pay attention to the partition/logical volume mapping configuration.
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In this installation, you have to map the previously created partitions/logical
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volumes to the appropriate directories of the target system as followings :
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HEREDOC
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# In the EFI system, add this mapping
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if [ ${ISEFI} -eq 1 ] ; then
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echo "/boot/efi : ${DEV}${EFIPARTITION}"
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fi
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# Root volume mapping
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echo "/ : /dev/mapper/${VGNAME}-${LVROOTNAME}"
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# In case of erased storage, add this mapping
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if [ ${ERASEALL} -eq 1 ] ; then
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echo "swap : /dev/mapper/${VGNAME}-${LVSWAPNAME}"
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fi
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cat <<HEREDOC
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************************ CAUTION! CAUTION! CAUTION! ****************************
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Make sure to click "Continue Testing", at the end of the Ubiquity installer.
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Just exit the installer without rebooting.
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Type return key to start Ubiquity.
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HEREDOC
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# waitfor a console input
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read dummy_var
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# Start GUI installer
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ubiquity &
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# Record the PID
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ubiquity_pid=$!
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# While the /etc/default/grub in the install target is NOT existing, keep sleeping.
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# If ubiquity terminated without file copy, this script also terminates.
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while [ ! -e /target/etc/default/grub ]
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do
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sleep 1 # 1sec.
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# Check if installer still exist
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if ! ps $ubiquity_pid > /dev/null ; then # If not exists
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cat <<HEREDOC 1>&2
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The ubiquity installer terminated unexpectedly.
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Installation process terminated.
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HEREDOC
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return
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fi
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done # while
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# Perhaps, too neuvous. Wait 1 more sectond to avoid the rece condition.
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sleep 1 # 1sec.
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# Make target GRUB aware to the crypt partition
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# This must do it after start of the file copy by ubiquity, but before the end of the file copy.
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echo "...Add GRUB_ENABLE_CRYPTODISK entry to /target/etc/default/grub "
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echo "GRUB_ENABLE_CRYPTODISK=y" >> /target/etc/default/grub
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# And then, wait for the end of Ubiquity process
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echo "...Waiting for the end of Ubiquity installer."
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wait $ubiquity_pid
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# *******************************************************************************
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# Post-install stage
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# *******************************************************************************
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## Mount the target file system
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# /target is created by the Ubiquity installer
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echo "...Mount /dev/mapper/${VGNAME}-${LVROOTNAME} on /target."
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mount /dev/mapper/${VGNAME}-${LVROOTNAME} /target
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# And mount other directories
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echo "...Mount all other dirs."
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for n in proc sys dev etc/resolv.conf; do mount --rbind "/$n" "/target/$n"; done
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# Change root and create the keyfile and ramfs image for Linux kernel.
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echo "...Chroot to /target."
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cat <<HEREDOC | chroot /target /bin/bash
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# Mount the rest of partitions by target /etc/fstab
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mount -a
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# Set up the kernel hook of encryption
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echo "...Install cryptsetup-initramfs package."
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apt -qq install -y cryptsetup-initramfs
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echo "...Register key file to the ramfs"
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echo "KEYFILE_PATTERN=/etc/luks/*.keyfile" >> /etc/cryptsetup-initramfs/conf-hook
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echo "UMASK=0077" >> /etc/initramfs-tools/initramfs.conf
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# Prepare a key file to embed in to the ramfs.
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echo "...Prepair key file."
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mkdir /etc/luks
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dd if=/dev/urandom of=/etc/luks/boot_os.keyfile bs=4096 count=1 status=none
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chmod u=rx,go-rwx /etc/luks
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chmod u=r,go-rwx /etc/luks/boot_os.keyfile
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# Add a key to the key file. Use the passphrase in the environment variable.
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echo "...Add a key to the key file."
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printf %s "${PASSPHRASE}" | cryptsetup luksAddKey -d - "${DEV}${CRYPTPARTITION}" /etc/luks/boot_os.keyfile
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# Add the LUKS volume information to /etc/crypttab to decrypt by kernel.
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echo "...Add LUKS volume info to /etc/crypttab."
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echo "${CRYPTPARTNAME} UUID=$(blkid -s UUID -o value ${DEV}${CRYPTPARTITION}) /etc/luks/boot_os.keyfile luks,discard" >> /etc/crypttab
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# Finally, update the ramfs initial image with the key file.
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echo "...Upadte initramfs."
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update-initramfs -uk all
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# Leave chroot
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HEREDOC
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# Unmount all
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echo "...Unmount all."
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umount -R /mnt/target
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# Finishing message
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cat <<HEREDOC
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****************** Post-install process finished ******************
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...Ready to reboot.
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HEREDOC
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