#!/bin/sh # Test creating a msdos partition over a GPT partition with # fdisk which doesn't remove the GPT partitions, only the PMBR # Copyright (C) 2009-2014, 2019-2023 Free Software Foundation, 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 3 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, see . . "${srcdir=.}/init.sh"; path_prepend_ ../parted ss=$sector_size_ dev=loop-file # Create a GPT partition table. dd if=/dev/null of=$dev bs=$ss seek=80 2> /dev/null || framework_failure parted -s $dev mklabel gpt > out 2>&1 || framework_failure_ compare /dev/null out || framework_failure_ # Create an MSDOS partition table in another file. dd if=/dev/null of=m bs=$ss seek=80 2> /dev/null || framework_failure parted -s m mklabel msdos > out 2>&1 || framework_failure_ compare /dev/null out || framework_failure_ # Transplant the MSDOS MBR into the GPT-formatted image. dd if=m of=$dev bs=$ss count=1 conv=notrunc || framework_failure_ # Now, try to create a GPT partition table in $dev. # Before, parted would prompt, asking about the apparent inconsistency. parted -s $dev mklabel gpt > out 2>&1 || fail=1 # expect no output compare /dev/null out || fail=1 Exit $fail