mirror of
https://github.com/suikan4github/kaiten-yaki.git
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124 lines
4.9 KiB
Bash
124 lines
4.9 KiB
Bash
#!/bin/bash -u
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# *******************************************************************************
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# Pre-install stage
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# *******************************************************************************
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function pre_install_common() {
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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 "...Initializing \"${DEV}\" with GPT."
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sgdisk --zap-all "${DEV}"
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# Create EFI partition and format it
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echo "...Creating 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 "...Formatting 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 "...Creating 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 "...Erasing 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 "...Creating 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 "...Initializing \"${DEV}${CRYPTPARTITION}\" as crypt partition"
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printf %s "${PASSPHRASE}" | cryptsetup luksFormat --type=luks1 --key-file - --batch-mode "${DEV}${CRYPTPARTITION}"
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fi # if erase all
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# ----- Open the LUKS partition -----
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# Open the crypt partition.
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echo "...Opening a crypt partition \"${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/"${CRYPTPARTNAME}" ] ; then
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cat <<- HEREDOC
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***** ERROR : Cannot open LUKS volume "${CRYPTPARTNAME}" on "${DEV}${CRYPTPARTITION}". *****
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...Check passphrase and your config.txt
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...Installation process terminated..
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HEREDOC
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return 1 # with error status
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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 # if exist
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echo "...Volume group \"${VGNAME}\" already exist. Skipped to create. No problem."
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echo "...Activating all logical volumes in volume group \"${VGNAME}\"."
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vgchange -ay
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else
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echo "...Initializing a physical volume on \"${CRYPTPARTNAME}\""
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pvcreate /dev/mapper/"${CRYPTPARTNAME}"
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echo "...And then creating 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}"-"${LVSWAPNAME}" ] ; then
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echo "...Swap volume already exist. Skipped to create. No problem."
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else
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echo "...Creating logical volume \"${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 # exist
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if [ "${OVERWRITEINSTALL}" -eq 1 ] ; then # exist and overwrite install
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echo "...Logical volume \"${VGNAME}-${LVROOTNAME}\" already exists. OK."
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else # exist and not overwriteinstall
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cat <<- HEREDOC
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***** ERROR : Logical volume "${VGNAME}-${LVROOTNAME}" already exists. *****
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...Check LVROOTNAME environment variable in your config.txt.
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HEREDOC
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echo "...Deactivating all logical volumes in volume group \"${VGNAME}\"."
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vgchange -a n "${VGNAME}"
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echo "...Closing LUKS volume \"${CRYPTPARTNAME}\"."
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cryptsetup close "${CRYPTPARTNAME}"
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cat <<- HEREDOC
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...Installation process terminated..
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HEREDOC
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return 1 # with error status
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fi
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else # not exsit
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if [ "${OVERWRITEINSTALL}" -eq 1 ] ; then
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cat <<- HEREDOC
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***** ERROR : Logical volume "${VGNAME}-${LVROOTNAME}" doesn't exist while overwrite install. *****
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...Check consistency of your config.txt.
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HEREDOC
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echo "...Deactivate all logical volumes in volume group \"${VGNAME}\"."
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vgchange -a n "${VGNAME}"
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echo "...Closing LUKS volume \"${CRYPTPARTNAME}\"."
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cryptsetup close "${CRYPTPARTNAME}"
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cat <<- HEREDOC
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...Installation process terminated..
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HEREDOC
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return 1 # with error status
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else # not exist and not overwrite install
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echo "...Creating logical volume \"${LVROOTNAME}\" on \"${VGNAME}\"."
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lvcreate -l "${LVROOTSIZE}" -n "${LVROOTNAME}" "${VGNAME}"
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fi
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fi
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# successful return
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return 0
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}
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