mirror of
https://github.com/stornic56/debianito-post-install.git
synced 2026-07-16 05:49:49 +00:00
add GRUB timeout TUI and restructure boot menu
- Rename "Boot Rescue & Repair" to "Boot Rescue + GRUB" - Add interactive GRUB timeout settings (Disable, 3s, 5s, Custom) - Implement robust `_set_grub_var` and `_apply_grub_setting` helpers - Add /etc/default/grub.d/99_script_override.cfg to bypass VM/Cloud-init overrides - Handle Secure Boot countdown policy restrictions by using menu style - Fix independent install check for lightdm and lightdm-gtk-greeter-settings
This commit is contained in:
stornic56
+122
-9
@@ -53,23 +53,136 @@ _rescue_initramfs() {
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_pause
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}
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rescue_boot() {
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# ----------------------------------------------------------------------
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# GRUB helpers
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# ----------------------------------------------------------------------
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_set_grub_var() {
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local var="$1" val="$2" file="/etc/default/grub"
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if grep -q "^${var}=" "$file" 2>/dev/null; then
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sudo sed -i "s/^${var}=.*/${var}=${val}/" "$file"
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elif grep -q "^#${var}=" "$file" 2>/dev/null; then
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sudo sed -i "s/^#${var}=.*/${var}=${val}/" "$file"
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else
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echo "${var}=${val}" | sudo tee -a "$file" >/dev/null
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fi
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}
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_apply_grub_setting() {
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local timeout="$1" style="$2" recordfail="$3" os_prober="$4"
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local file="/etc/default/grub"
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local backup="${file}.backup.$(date +%Y%m%d_%H%M%S)"
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local override="/etc/default/grub.d/99_script_override.cfg"
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sudo cp "$file" "$backup"
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_set_grub_var GRUB_TIMEOUT "$timeout"
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_set_grub_var GRUB_TIMEOUT_STYLE "$style"
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_set_grub_var GRUB_RECORDFAIL_TIMEOUT "$recordfail"
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[ -n "$os_prober" ] && _set_grub_var GRUB_DISABLE_OS_PROBER "$os_prober"
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sudo mkdir -p /etc/default/grub.d
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if [ -n "$os_prober" ]; then
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cat << EOF | sudo tee "$override" > /dev/null
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GRUB_TIMEOUT_STYLE=$style
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GRUB_TIMEOUT=$timeout
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GRUB_RECORDFAIL_TIMEOUT=$recordfail
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GRUB_DISABLE_OS_PROBER=$os_prober
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EOF
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else
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cat << EOF | sudo tee "$override" > /dev/null
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GRUB_TIMEOUT=$timeout
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GRUB_TIMEOUT_STYLE=$style
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GRUB_RECORDFAIL_TIMEOUT=$recordfail
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EOF
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fi
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local summary
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summary="Settings applied:\n\n"
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summary+=" GRUB_TIMEOUT=$timeout\n"
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summary+=" GRUB_TIMEOUT_STYLE=$style\n"
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summary+=" GRUB_RECORDFAIL_TIMEOUT=$recordfail\n"
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[ -n "$os_prober" ] && summary+=" GRUB_DISABLE_OS_PROBER=$os_prober\n"
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summary+="\nRunning update-grub..."
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echo -e "$summary"
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if sudo update-grub >/dev/null 2>&1; then
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_msg "GRUB Settings" \
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"GRUB settings applied successfully!\n\nBackup saved: ${backup}\n\nReboot to see the changes."
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else
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echo -e "${RED}update-grub failed. Restoring backup...${NC}"
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sudo cp "$backup" "$file"
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sudo rm -f "$override"
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_msg "Error" "update-grub failed.\nBackup restored from ${backup}\nOverride removed: ${override}."
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fi
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}
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_grub_menu_settings() {
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while true; do
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local choice
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choice=$(_menu "Boot Rescue & Repair" \
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"Select a rescue operation${SCROLL_HINT}:" \
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choice=$(_menu "GRUB Boot Menu Settings" \
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"Configure when and how the GRUB menu appears${SCROLL_HINT}:" \
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$TUI_ALTO $TUI_ANCHO $TUI_ALTO_LISTA \
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"1" "Refirm Secure Boot (shim + GRUB)" \
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"2" "Regenerate initramfs (all kernels)" \
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"3" "Return to main menu")
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"1" "Disable GRUB menu on start (Fastest boot)" \
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"2" "Faster boot (Show 3-sec countdown)" \
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"3" "Default boot (Show menu for 5 secs)" \
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"4" "Custom timeout (Input seconds)" \
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"5" "Back")
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[ -z "$choice" ] && return
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clear
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case "$choice" in
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1) _rescue_boot_sb ;;
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2) _rescue_initramfs ;;
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3) return ;;
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1)
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if _confirm "Disable GRUB Menu" \
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"GRUB menu will be hidden entirely for fastest boot.\n\nTo access the menu on next boot, press and hold ESC\nimmediately after powering on.\n\nProceed?"; then
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_apply_grub_setting 0 hidden 0 true
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fi
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;;
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2)
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_apply_grub_setting 3 menu 3 ""
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;;
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3)
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_apply_grub_setting 5 menu 5 ""
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;;
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4)
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local custom_timeout
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custom_timeout=$(whiptail --title "Custom GRUB Timeout" \
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--inputbox "Enter the GRUB timeout in seconds.\n\nUse -1 for indefinite wait." \
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10 60 "" 3>&1 1>&2 2>&3 || true)
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if [ -n "$custom_timeout" ]; then
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if [[ "$custom_timeout" =~ ^-?[0-9]+$ ]]; then
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_apply_grub_setting "$custom_timeout" menu "$custom_timeout" ""
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else
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_msg "Invalid Input" "Please enter a valid integer (e.g. 0, 5, -1)."
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fi
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fi
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;;
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5) return ;;
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esac
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done
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}
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rescue_boot() {
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while true; do
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local choice
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choice=$(_menu "Boot Rescue + GRUB Configuration" \
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"Select an operation${SCROLL_HINT}:" \
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$TUI_ALTO $TUI_ANCHO $TUI_ALTO_LISTA \
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"1" "GRUB Boot Menu Settings" \
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"2" "Refirm Secure Boot (shim + GRUB)" \
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"3" "Regenerate initramfs (all kernels)" \
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"4" "Return to main menu")
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[ -z "$choice" ] && return
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clear
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case "$choice" in
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1) _grub_menu_settings ;;
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2) _rescue_boot_sb ;;
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3) _rescue_initramfs ;;
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4) return ;;
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esac
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done
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}
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