mirror of
https://github.com/suikan4github/kaiten-yaki.git
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95 lines
3.7 KiB
Bash
95 lines
3.7 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() {
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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 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 ${VGNAME} already exist. Skipped to create. No problem."
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else
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echo "...Initialize a physical volume on \"${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}-${LVROOTNAME}" already exists. *****
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Check LVROOTNAME environment variable in config.txt.
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Installation terminated.
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HEREDOC
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return 1 # with error status
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else
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echo "...Create logical volume \"${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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# successful return
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return 0
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}
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