mirror of
https://github.com/suikan4github/kaiten-yaki.git
synced 2025-12-20 10:31:17 -03:00
8ab8143838
Previously, it was adding inifinitly, if install executed repeatedly. And refactored common functions.
220 lines
No EOL
7.5 KiB
Bash
220 lines
No EOL
7.5 KiB
Bash
#!/bin/bash -u
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# shellcheck disable=SC1091
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# Load configuration parameter
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source ./config.sh
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# Load functions
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source ./lib.sh
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function main() {
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# This is the mount point of the install target.
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export TARGETMOUNTPOINT="/mnt/target"
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# Distribution check
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if ! uname -a | grep void -i > /dev/null ; then # "Void" 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 Void Linux, while this script is dediated to the Void Linux.
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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 -r YESNO
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if [ "${YESNO}" != "Y" ] && [ "${YESNO}" != "y" ] ; then
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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 # if YES
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fi # Distribution check
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# *******************************************************************************
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# Confirmation before installation
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# *******************************************************************************
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# Common part of the parameter confirmation
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if ! confirmation ; then
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return 1 # with error status
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fi
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# *******************************************************************************
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# Pre-install stage
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# *******************************************************************************
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# Install essential packages.
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xbps-install -y -Su xbps gptfdisk
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# ADD "rd.auto=1 cryptdevice=/dev/sda2:${CRYPTPARTNAME} root=/dev/mapper/${VGNAME}-${ROOTNAME}" to GRUB.
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# This is magical part. I have not understood why this is required.
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# Anyway, without this modification, Void Linux doesn't boot.
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# Refer https://wiki.voidlinux.org/Install_LVM_LUKS#Installation_using_void-installer
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# This modification is guaratnteed once only. To allow re-trying the installation after unexpected GUI/TUI installer quit.
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grub_additional_parameters="rd.auto=1 cryptdevice=${DEV}${CRYPTPARTITION}:${CRYPTPARTNAME} root=/dev/mapper/${VGNAME}-${LVROOTNAME}"
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if grep "$grub_additional_parameters" /etc/default/grub ; then # Is additonal parameter already added?
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# Yes ".../etc/default/grub already modified. OK, skipping to modiy."
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echo
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else
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# Not yet. Let's add.
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echo "...Modify /etc/default/grub."
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sed -i "s#loglevel=4#loglevel=4 ${grub_additional_parameters}#" /etc/default/grub
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fi
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# Common part of the pre-install stage
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if ! pre_install ; then
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return 1 # with error status
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fi
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# *******************************************************************************
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# Para-install stage
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# *******************************************************************************
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# Show common message to let the operator focus on the critical part
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para_install_msg
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# Distrobution dependent message
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cat <<- HEREDOC
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************************ CAUTION! CAUTION! CAUTION! ****************************
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Make sure to click "NO", if the void-installer ask you to reboot.
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Just exit the installer without rebooting. Other wise, your system
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is unable to boot.
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Type return key to start void-installer.
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HEREDOC
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# waitfor a console input
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read -r
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# Start the background target/etc/default/grub cheker.
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# The definition of this function is down below.
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grub_check_and_modify_local &
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# Record the PID of the background checker.
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grub_check_and_modify_id=$!
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# Start void-installer
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void-installer
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# Check if background checker still exist
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if ps $grub_check_and_modify_id > /dev/null ; then # If exists
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# If exist, the grub was not modifyed -> void-installer termianted unexpectedly
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# Delete the nwe volume if overwrite install, and close all
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on_unexpected_installer_quit
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return 1 # with error status
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fi
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# *******************************************************************************
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# Post-install stage
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# *******************************************************************************
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# Finalizing. Embedd encryption key into the ramfs image.
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post_install_local
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# Normal end
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return 0
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} # End of main()
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# *******************************************************************************
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# Void Linux dependent post-installation process
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function post_install_local() {
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## Mount the target file system
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# ${TARGETMOUNTPOINT} is created by the GUI/TUI installer
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echo "...Mounting /dev/mapper/${VGNAME}-${LVROOTNAME} on ${TARGETMOUNTPOINT}."
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mount /dev/mapper/"${VGNAME}"-"${LVROOTNAME}" ${TARGETMOUNTPOINT}
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# And mount other directories
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echo "...Mounting all other dirs."
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for n in proc sys dev etc/resolv.conf; do mount --rbind "/$n" "${TARGETMOUNTPOINT}/$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 ${TARGETMOUNTPOINT}."
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# shellcheck disable=SC2086
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cat <<- HEREDOC | chroot ${TARGETMOUNTPOINT} /bin/bash
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# Mount the rest of partitions by target /etc/fstab
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mount -a
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# Set up the kernel hook of encryption
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echo "...Installing cryptsetup-initramfs package."
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xbps-install -y lvm2 cryptsetup
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# Prepare a key file to embed in to the ramfs.
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echo "...Prepairing key file."
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mkdir /etc/luks
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dd if=/dev/urandom of=/etc/luks/boot_os.keyfile bs=4096 count=1 status=none
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chmod u=rx,go-rwx /etc/luks
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chmod u=r,go-rwx /etc/luks/boot_os.keyfile
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# Add a key to the key file. Use the passphrase in the environment variable.
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echo "...Adding a key to the key file."
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printf %s "${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 "...Adding 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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# Putting key file into the ramfs initial image
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echo "...Registering key file to the ramfs"
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echo 'install_items+=" /etc/luks/boot_os.keyfile /etc/crypttab " ' > /etc/dracut.conf.d/10-crypt.conf
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# Finally, update the ramfs initial image with the key file.
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echo "...Upadting initramfs."
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xbps-reconfigure -fa
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echo "...grub-mkconfig."
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grub-mkconfig -o /boot/grub/grub.cfg
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echo "...update-grub."
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update-grub
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# Leave chroot
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HEREDOC
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# Unmount all
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echo "...Unmounting all."
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umount -R ${TARGETMOUNTPOINT}
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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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retrun 0
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} # End of post_install_local()
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# *******************************************************************************
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# This function will be executed in the background context, to watch the TUI installer.
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function grub_check_and_modify_local() {
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# While the /etc/default/grub in the install target is NOT existing, keep sleeping.
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# If installer terminated without file copy, this script also terminates.
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while [ ! -e ${TARGETMOUNTPOINT}/etc/default/grub ]
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do
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sleep 1 # 1sec.
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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 installer, but before the end of the file copy.
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echo "...Adding GRUB_ENABLE_CRYPTODISK entry to ${TARGETMOUNTPOINT}/etc/default/grub "
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echo "GRUB_ENABLE_CRYPTODISK=y" >> ${TARGETMOUNTPOINT}/etc/default/grub
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# succesfull return
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return 0
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} # grub_check_and_modify_local()
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# *******************************************************************************
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# Execute
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main |