mirror of
https://github.com/kevinveenbirkenbach/linux-image-manager.git
synced 2024-11-10 01:51:03 +01:00
118 lines
4.2 KiB
Bash
118 lines
4.2 KiB
Bash
#!/bin/bash
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#
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# Offers base functions for the image management
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#
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# shellcheck disable=SC2034 #Deactivate checking of unused variables
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# shellcheck disable=SC2010 # ls | grep allowed
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# shellcheck source=/dev/null # Deactivate SC1090
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# shellcheck disable=SC2015 # Deactivate bools hints
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# shellcheck disable=SC2154 # Deactivate referenced but not assigned hints
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source "$(dirname "$(readlink -f "${0}")")/../base.sh" || (echo "Loading base.sh failed." && exit 1)
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# Writes the full partition name
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# @parameter $1 is device path
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# @parameter $2 is the partition number
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echo_partition_name(){
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if [ "${device_path:5:1}" != "s" ]
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then
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echo "$device_path""p""$1"
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else
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echo "$device_path$1"
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fi
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}
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set_partition_paths(){
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info "Setting partition and mapper paths..."
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boot_partition_path=$(echo_partition_name "1")
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root_partition_path=$(echo_partition_name "2")
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root_mapper_path=$root_partition_path
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}
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make_mount_folders(){
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info "Preparing mount paths..." &&
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boot_mount_path="$working_folder_path""boot/" &&
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root_mount_path="$working_folder_path""root/" &&
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mkdir -v "$boot_mount_path" &&
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mkdir -v "$root_mount_path" ||
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error
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}
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make_working_folder(){
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working_folder_path="/tmp/raspberry-pi-tools-$(date +%s)/" &&
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info "Create temporary working folder in $working_folder_path" &&
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mkdir -v "$working_folder_path" ||
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error
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}
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set_root_variables(){
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info "Setting root variables..." &&
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root_partition_uuid=$(blkid "$root_partition_path" -s UUID -o value) &&
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root_mapper_name="arch-root-$root_partition_uuid" &&
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root_mapper_path="/dev/mapper/$root_mapper_name" || error
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}
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decrypt_root(){
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if [ "$(blkid "$root_partition_path" -s TYPE -o value)" == "crypto_LUKS" ]
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then
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set_root_variables &&
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info "Decrypting of $root_partition_path is neccessary..." &&
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sudo cryptsetup -v luksOpen "$root_partition_path" "$root_mapper_name" ||
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error
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fi
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}
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mount_partitions(){
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info "Mount boot and root partition..." &&
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mount -v "$boot_partition_path" "$boot_mount_path" &&
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mount -v "$root_mapper_path" "$root_mount_path" &&
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info "The following mounts refering this setup exist:" && mount | grep "$working_folder_path" ||
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error
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}
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destructor(){
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info "Cleaning up..."
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info "Unmounting everything..."
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umount -lv "$chroot_dev_pts_mount_path" || warning "Umounting $chroot_dev_pts_mount_path failed!"
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umount -lv "$chroot_dev_mount_path" || warning "Umounting $chroot_dev_mount_path failed!"
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umount -v "$chroot_proc_mount_path" || warning "Umounting $chroot_proc_mount_path failed!"
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umount -v "$chroot_sys_mount_path" || warning "Umounting $chroot_sys_mount_path failed!"
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umount -v "$root_mount_path""boot/" || warning "Umounting $root_mount_path""boot/ failed!"
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umount -v "$root_mount_path" || warning "Umounting $root_mount_path failed!"
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umount -v "$boot_mount_path" || warning "Umounting $boot_mount_path failed!"
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info "Deleting mount folders..."
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rmdir -v "$root_mount_path" || warning "Removing $root_mount_path failed!"
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rmdir -v "$boot_mount_path" || warning "Removing $boot_mount_path failed!"
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rmdir -v "$working_folder_path" || warning "Removing $working_folder_path failed!"
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if [ "$(blkid "$root_partition_path" -s TYPE -o value)" == "crypto_LUKS" ]
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then
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info "Trying to close decrypted $root_mapper_name..." &&
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sudo cryptsetup -v luksClose "$root_mapper_name" || warning "Failed."
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fi
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}
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mount_chroot_binds(){
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info "Mount chroot environments..." &&
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chroot_sys_mount_path="$root_mount_path""sys/" &&
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chroot_proc_mount_path="$root_mount_path""proc/" &&
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chroot_dev_mount_path="$root_mount_path""dev/" &&
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chroot_dev_pts_mount_path="$root_mount_path""dev/pts" &&
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mount --bind "$boot_mount_path" "$root_mount_path""boot" &&
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mount --bind /dev "$chroot_dev_mount_path" &&
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mount --bind /sys "$chroot_sys_mount_path" &&
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mount --bind /proc "$chroot_proc_mount_path" &&
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mount --bind /dev/pts "$chroot_dev_pts_mount_path" ||
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error
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}
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copy_qemu(){
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info "Copy qemu binary..." &&
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cp -v /usr/bin/qemu-arm-static "$root_mount_path""usr/bin/" ||
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error
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}
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copy_resolve_conf(){
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info "Copy resolve.conf..." &&
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cp --remove-destination -v /etc/resolv.conf "$root_mount_path""etc/" ||
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warning "Failed. Propably there is no internet connection available."
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}
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