351 lines
9.6 KiB
Bash
Executable File
351 lines
9.6 KiB
Bash
Executable File
#!/bin/bash
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confirmation() {
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local message
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message="${1}"
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local choice
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while :; do
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read -p "${message}" -n 1 -r choice
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echo $choice
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case "${choice}" in
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y | Y)
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return 0
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;;
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n | N)
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return 1
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;;
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*) echo -e "\nInput must be either y, Y, n, or N" ;;
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esac
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done
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}
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echo_rgb() {
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# Echo a colored string to the terminal based on rgb values
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#
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# Positional Arguments:
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#
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# message <type: string> <position: 1> <required: true>
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# - The message to be printed to stdout
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# red <type: int> <position: 2> <required: true>
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# - The red value from 0 to 255
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# green <type: int> <position: 3> <required: true>
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# - The green value from 0 to 255
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# blue <type: int> <position: 4> <required: true>
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# - The blue value from 0 to 255
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#
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# Usage:
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# echo_rgb "Yep" 10 8 30
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#
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# POSIX Compliant:
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# N/A
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#
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local red
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local green
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local blue
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local input
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input="${1}"
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red="${2}"
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green="${3}"
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blue="${4}"
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printf "\e[0;38;2;%s;%s;%sm%s\e[m\n" "${red}" "${green}" "${blue}" "${input}"
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}
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important() {
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echo_rgb "${1}" 135 195 255
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}
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log() {
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# Print a message and send it to stdout or stderr depending upon log level, also configurable with debug etc.
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#
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# Arguments:
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# level <type: string> <position: 1> <required: true>
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# - The log level, defined within a case check in this function
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# message <type: string> <position: 2> <required: true>
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# - The info message
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# line_number <type: int> <position: 3> <required: false>
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# - The line number of the calling function (${LINNO})
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#
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# Usage:
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# log "info" "Could not find that directory"
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#
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# POSIX Compliant:
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# Yes
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#
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# Set debug status depending if a global debug variable has been set to either 1 or 0
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local debug
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if [ ${DEBUG} ]; then
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debug=${DEBUG}
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else
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debug=0
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fi
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local FORMAT
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FORMAT="[$(echo_rgb "$(date +%Y-%m-%dT%H:%M:%S)" 180 140 255)]"
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# Convert the level to uppercase
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local level
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level=$(echo "${1}" | tr '[:lower:]' '[:upper:]')
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local message
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message="${2}"
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case "${level}" in
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INFO)
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# Output all info log levels to stdout
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printf "${FORMAT}[$(echo_rgb "INFO" 0 140 255)] %s\n" "${message}" >&1
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return 0
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;;
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WARN | WARNING)
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# Output all warning log levels to stdout
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printf "${FORMAT}[$(echo_rgb "WARNING" 255 255 0)] %s\n" "${message}" >&1
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return 0
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;;
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DEBUG)
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# Output all debug log levels to stdout
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if [ "${DEBUG}" ]; then
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printf "${FORMAT}[$(echo_rgb "DEBUG" 0 160 110)] %s\n" "${message}" >&1
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fi
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return 0
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;;
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ERROR)
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# Output all error log levels to stderr
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printf "${FORMAT}[$(echo_rgb "ERROR" 255 0 0)] %s\n" "${message}" >&2
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return 0
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;;
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# Further log levels can be added by extending this switch statement with more comparisons
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*) # Default case, no matches
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# Returns non-zero code as an improper log option was passed, this helps with using `set -e`
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printf "${FORMAT}[ERROR] %s\n" "Invalid log level passed, received level \"${level}\" with message \"${message}\"" >&2
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return 1
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;;
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esac
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}
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get_available_disks() {
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local available_disks
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available_disks=()
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local disk_line
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while read -r; do
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# tr is used to change multiple whitespaces into a single space for processing by cut
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disk_line="$(echo "${REPLY}" | tr -s " " | cut -d " " -f6)"
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if [[ "${disk_line}" = "disk" ]]; then
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# Add the found disk to our array
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available_disks+=("$(echo "${REPLY}" | cut -d " " -f1)")
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fi
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done <<< "$(lsblk)"
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local ret_val
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# Build the array into a string, yes this is less efficient, but easier to modify in the future if something changes
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for disk in "${available_disks[@]}"; do
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ret_val="${ret_val} ${disk}"
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done
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echo "${ret_val}"
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}
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list_disks() {
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local disks
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disks="${1}"
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local count
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count=0
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log "info" "Available disks"
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for disk in ${disks}; do
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echo " "${count}\.\) "${disk}"
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count=$(( count + 1 ))
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done
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}
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get_num_of_elems() {
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local count
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count=0
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for elem in ${1}; do
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count=$(( count + 1 ))
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done
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echo "${count}"
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}
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install() {
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if ! host "google.com" > /dev/null; then
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log "error" "Unable to reach google, network is down. This script requires network connectivity with active DNS resolution"
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exit 1
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fi
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local DISK_BASE_PATH
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DISK_BASE_PATH="/dev/"
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local available_disks
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log "info" "Querying system for available disks..."
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available_disks="$(get_available_disks)"
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disk_count="$(get_num_of_elems "${available_disks}")"
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disk_count=$(( disk_count - 1))
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local disk_selected
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local install_disk
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local install_path
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local count
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local valid_disk_selected
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valid_disk_selected=1
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while [[ "${valid_disk_selected}" != 0 ]]; do
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list_disks "${available_disks}"
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read -p "Select a disk number to install arch linux to: " disk_selected
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if [ ${disk_selected} -eq ${disk_selected} 2> /dev/null ]; then
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:
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else
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log "error" "A number was not passed"
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continue
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fi
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if [[ "${disk_selected}" -gt "${disk_count}" ]]; then
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log "error" "Invalid disk number passed, received ${disk_selected}, but the maximum disk number is ${disk_count}"
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elif [[ "${disk_selected}" -lt 0 ]]; then
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log "error" "Invalid disk number passed, received ${disk_selected} which was less than 0"
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else
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for disk in ${available_disks}; do
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if [[ ${count} -eq ${disk_selected} ]]; then
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install_disk="${disk}"
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install_path="${DISK_BASE_PATH}/${install_disk}"
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valid_disk_selected=0
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fi
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count=$(( count + 1 ))
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done
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fi
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done
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log "info" "Disk selected given as $(important "${install_disk}")"
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if [[ ! -e "${install_path}" ]]; then
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log "error" "The given disk, $(important "${install_disk}") does not exist at $(important "${install_path}")"
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exit 1
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fi
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if ! confirmation "Begin installation of Arch Linux to $(important "${install_disk}") (y/N)? "; then
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log "info" "Confirmation recieved negative, going back to options..."
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exit
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fi
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log "info" "Installing Arch to disk $(important "${install_disk}")"
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log "info" "Wiping partitions on disk $(important "${install_disk}")"
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sfdisk --delete "${install_path}" >/dev/null
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log "info" "Wiped partitions on $(important "${install_disk}")"
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log "info" "Securely erasing remaining data on $(important "${install_disk}")"
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# echo YES | cryptsetup open --type plain -d /dev/urandom "${install_path}" to_be_wiped > /dev/null || exit
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# dd bs=1M if=/dev/zero of=/dev/mapper/to_be_wiped status=progress 2> /dev/null || exit
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# cryptsetup close to_be_wiped || exit
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log "info" "Writing new partitions to $(important "${install_disk}")"
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(echo n
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echo
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echo
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echo +512M
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echo ef00
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echo n
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echo
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echo
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echo
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echo 8300
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echo w
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echo Y) | gdisk "${install_path}" > /dev/null
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log "info" "Wrote partitions"
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log "info" "Encrypting $(important "${install_disk}"), if you are prompted type $(important "YES")"
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cryptsetup -y -v luksFormat "${install_path}p2" || exit
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log "info" "Requesting opening of $(important "${install_disk}p2")"
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cryptsetup open "${install_path}p2" cryptroot || exit
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log "info" "Creating file systems..."
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mkdfs.fat -F32 "${install_path}p1"
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mkfs.ext4 "/dev/mapper/cryptroot"
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log "info" "Created file systems"
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mount /dev/mapper/cryptroot /mnt
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mkdir /mnt/boot
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mount "${install_path}p1" /mnt/boot
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local mem_amount
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mem_amount="$(grep MemTotal /proc/meminfo | tr -s " " | cut -d " " -f2)"
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mem_amount=$(( mem_amount * 3/2 / 1000 ))
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log "info" "Creating swap file with memory amount: $(important "${mem_amount}") mebibytes"
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dd if=/dev/zero of=/mnt/swapfile bs=1M count="${mem_amount}" status=progress
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chmod 600 /mnt/swapfile
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mkswap /mnt/swapfile
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swapon /mnt/swapfile
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log "info" "Finished creating swap file"
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local packages
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packages="base base-devel linux linux-headers linux-firmware neovim"
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log "info" "Doing primary installation with pacstrap"
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log "info" "Installing the following packages:"
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for pkg in ${packages}; do
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echo " - ${pkg}"
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done
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pacstrap /mnt base base-devel linux linux-headers linux-firmware neovim
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log "info" "Finished installing packages"
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log "info" "Generating fstab"
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genfstab -U /mnt >> /mnt/etc/fstab
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log "info" "Finished generating fstab"
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log "info" "Switching to new installation and finishing up install"
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arch-chroot /mnt << __END_CHROOT_CMDS__
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echo "arch" > /etc/hostname
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cat << __EOF__ > "/etc/hosts"
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127.0.0.1 localhost
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::1 localhost
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127.0.1.1 arch.localdomain arch
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__EOF__
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echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen
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locale-gen
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echo "LANG=en_US.UTF-8" > /etc/locale.conf
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echo "toor" | passwd root --stdin
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local ucode
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while read -r; do
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if [[ "${REPLY}" = "*VendorID*" ]]; then
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if [[ "${REPLY}" = "*AMD*" ]]; then
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ucode="amd-ucode"
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else
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ucode="intel-ucode"
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fi
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fi
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done <<< "$(lscpu)"
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yes | pacman -S grub efibootmgr "${ucode}"
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local disk_uuid
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disk_uuid="$(blkid -s UUID -o value "${install_path}p2")"
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echo disk uuid: $disk_uuid
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while read -r; do
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if [[ "${REPLY}" = "*GRUB_CMD_LINE*" ]]; then
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echo "GRUB_CMDLINE_LINUX=\"cryptdevice=UUID=${disk_uuid}:cryptroot\""
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else
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echo "${REPLY}"
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fi
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done <<< "$(cat /etc/default/grub)"
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grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB
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grub-mkconfig -o /boot/grub/grub.cfg
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yes | pacman -S networkmanager
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systemctl enable NetworkManager
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__END_CHROOT_CMDS__
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log "info" "Finished, root password set to $(important "toor")"
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log "info" "Next steps: update localities if incorrect, add your user, update the root password"
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}
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main() {
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install
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}
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main "$@"
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