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(* virt-v2v
* Copyright (C) 2009-2025 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*)
open Printf
open Std_utils
open Tools_utils
open Common_gettext.Gettext
module G = Guestfs
open Types
let choose_root root_choice g =
let roots = g#inspect_os () in
let roots = Array.to_list roots in
match roots with
| [] ->
error (f_"inspection could not detect the source guest \
(or physical machine) operating system.\n\n\
Assuming that you are running virt-v2v/virt-p2v \
on a source which is supported (and not, for example, \
a blank disk), then this should not happen.\n\n\
No root device found in this operating system image.");
| [root] -> root (* only one root, so return it *)
| roots ->
(* If there are multiple roots, use the [--root] option supplied
* by the user to help us choose what we should do next.
*)
match root_choice with
| AskRoot ->
(* List out the roots and ask the user to choose. *)
printf "\n***\n";
printf (f_"Dual- or multi-boot operating system detected. \
Choose the root filesystem\nthat contains the main \
operating system from the list below:\n");
printf "\n";
List.iteri (
fun i root ->
let prod = g#inspect_get_product_name root in
match prod with
| "unknown" -> printf " [%d] %s\n" (i+1) root
| prod -> printf " [%d] %s (%s)\n" (i+1) root prod
) roots;
printf "\n";
let i = ref 0 in
let n = List.length roots in
while !i < 1 || !i > n do
printf (f_"Enter a number between 1 and %d, or ‘exit’: ") n;
let input = read_line () in
if input = "exit" || input = "q" || input = "quit" then
exit 1
else (
try i := int_of_string input
with
| End_of_file -> error (f_"connection closed")
| Failure _ -> ()
)
done;
List.nth roots (!i - 1)
| SingleRoot ->
error (f_"multi-boot operating systems are not supported by \
virt-v2v. Use the --root option to change how virt-v2v \
handles this.")
| FirstRoot ->
let root = List.hd roots in
info (f_"Picked %s because '--root first' was used.") root;
root
| RootDev dev ->
let root =
if List.mem dev roots then dev
else
error (f_"root device %s not found. Roots found were: %s")
dev (String.concat " " roots) in
info (f_"Picked %s because '--root %s' was used.") root dev;
root
|
