2 files changed, 46 insertions, 6 deletions

diff --git a/src/op_mode/image_installer.py b/src/op_mode/image_installer.py
index ba0e3b6db..0d2d7076c 100755
--- a/src/op_mode/image_installer.py
+++ b/src/op_mode/image_installer.py
@@ -23,6 +23,8 @@ from shutil import copy, chown, rmtree, copytree
 from glob import glob
 from sys import exit
 from os import environ
+from os import readlink
+from os import getpid, getppid
 from typing import Union
 from urllib.parse import urlparse
 from passlib.hosts import linux_context
@@ -65,7 +67,7 @@ MSG_INPUT_PASSWORD: str = 'Please enter a password for the "vyos" user:'
 MSG_INPUT_PASSWORD_CONFIRM: str = 'Please confirm password for the "vyos" user:'
 MSG_INPUT_ROOT_SIZE_ALL: str = 'Would you like to use all the free space on the drive?'
 MSG_INPUT_ROOT_SIZE_SET: str = 'Please specify the size (in GB) of the root partition (min is 1.5 GB)?'
-MSG_INPUT_CONSOLE_TYPE: str = 'What console should be used by default? (K: KVM, S: Serial, U: USB-Serial)?'
+MSG_INPUT_CONSOLE_TYPE: str = 'What console should be used by default? (K: KVM, S: Serial)?'
 MSG_INPUT_COPY_DATA: str = 'Would you like to copy data to the new image?'
 MSG_INPUT_CHOOSE_COPY_DATA: str = 'From which image would you like to save config information?'
 MSG_INPUT_COPY_ENC_DATA: str = 'Would you like to copy the encrypted config to the new image?'
@@ -614,6 +616,20 @@ def copy_ssh_host_keys() -> bool:
     return False
 
 
+def console_hint() -> str:
+    pid = getppid() if 'SUDO_USER' in environ else getpid()
+    try:
+        path = readlink(f'/proc/{pid}/fd/1')
+    except OSError:
+        path = '/dev/tty'
+
+    name = Path(path).name
+    if name == 'ttyS0':
+        return 'S'
+    else:
+        return 'K'
+
+
 def cleanup(mounts: list[str] = [], remove_items: list[str] = []) -> None:
     """Clean up after installation
 
@@ -709,9 +725,9 @@ def install_image() -> None:
 
     # ask for default console
     console_type: str = ask_input(MSG_INPUT_CONSOLE_TYPE,
-                                  default='K',
-                                  valid_responses=['K', 'S', 'U'])
-    console_dict: dict[str, str] = {'K': 'tty', 'S': 'ttyS', 'U': 'ttyUSB'}
+                                  default=console_hint(),
+                                  valid_responses=['K', 'S'])
+    console_dict: dict[str, str] = {'K': 'tty', 'S': 'ttyS'}
 
     config_boot_list = ['/opt/vyatta/etc/config/config.boot',
                         '/opt/vyatta/etc/config.boot.default']
diff --git a/src/op_mode/image_manager.py b/src/op_mode/image_manager.py
index 1cfb5f5a1..fb4286dbc 100755
--- a/src/op_mode/image_manager.py
+++ b/src/op_mode/image_manager.py
@@ -21,7 +21,7 @@ from argparse import ArgumentParser, Namespace
 from pathlib import Path
 from shutil import rmtree
 from sys import exit
-from typing import Optional
+from typing import Optional, Literal, TypeAlias, get_args
 
 from vyos.system import disk, grub, image, compat
 from vyos.utils.io import ask_yes_no, select_entry
@@ -33,6 +33,8 @@ DELETE_IMAGE_PROMPT_MSG: str = 'Select an image to delete:'
 MSG_DELETE_IMAGE_RUNNING: str = 'Currently running image cannot be deleted; reboot into another image first'
 MSG_DELETE_IMAGE_DEFAULT: str = 'Default image cannot be deleted; set another image as default first'
 
+ConsoleType: TypeAlias = Literal['tty', 'ttyS']
+
 def annotate_list(images_list: list[str]) -> list[str]:
     """Annotate list of images with additional info
 
@@ -202,6 +204,15 @@ def rename_image(name_old: str, name_new: str) -> None:
             exit(f'Unable to rename the encrypted config for "{name_old}" to "{name_new}": {err}')
 
 
+@compat.grub_cfg_update
+def set_console_type(console_type: ConsoleType) -> None:
+    console_choice = get_args(ConsoleType)
+    if console_type not in console_choice:
+        exit(f'console type \'{console_type}\' not available')
+
+    grub.set_console_type(console_type)
+
+
 def list_images() -> None:
     """Print list of available images for CLI hints"""
     images_list: list[str] = grub.version_list()
@@ -209,6 +220,13 @@ def list_images() -> None:
         print(image_name)
 
 
+def list_console_types() -> None:
+    """Print list of console types for CLI hints"""
+    console_types: list[str] = list(get_args(ConsoleType))
+    for console_type in console_types:
+        print(console_type)
+
+
 def parse_arguments() -> Namespace:
     """Parse arguments
 
@@ -217,7 +235,8 @@ def parse_arguments() -> Namespace:
     """
     parser: ArgumentParser = ArgumentParser(description='Manage system images')
     parser.add_argument('--action',
-                        choices=['delete', 'set', 'rename', 'list'],
+                        choices=['delete', 'set', 'set_console_type',
+                                 'rename', 'list', 'list_console_types'],
                         required=True,
                         help='action to perform with an image')
     parser.add_argument('--no-prompt', action='store_true',
@@ -227,6 +246,7 @@ def parse_arguments() -> Namespace:
         help=
         'a name of an image to add, delete, install, rename, or set as default')
     parser.add_argument('--image-new-name', help='a new name for image')
+    parser.add_argument('--console-type', help='console type for boot')
     args: Namespace = parser.parse_args()
     # Validate arguments
     if args.action == 'rename' and (not args.image_name or
@@ -243,10 +263,14 @@ if __name__ == '__main__':
             delete_image(args.image_name, args.no_prompt)
         if args.action == 'set':
             set_image(args.image_name)
+        if args.action == 'set_console_type':
+            set_console_type(args.console_type)
         if args.action == 'rename':
             rename_image(args.image_name, args.image_new_name)
         if args.action == 'list':
             list_images()
+        if args.action == 'list_console_types':
+            list_console_types()
 
         exit()