vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

2009-12-21 Robert Millan <rmh.grub@aybabtu.com>

Browse source 
* util/mkisofs/msdos_partition.h: New file (based on
        include/grub/msdos_partition.h).
        * util/mkisofs/mkisofs.c (use_protective_msdos_label): New variable.
        (OPTION_PROTECTIVE_MSDOS_LABEL): New macro.
        (ld_options, main): Recognize --protective-msdos-label.
        * util/mkisofs/mkisofs.h (use_protective_msdos_label): New declaration.
        * util/mkisofs/write.c: Include `"msdos_partition.h"'.
        (padblock_write): If `use_protective_msdos_label' is set, patch a
        protective DOS-style label in the output image.

        * util/grub-mkrescue.in: Use --protective-msdos-label.
This commit is contained in:
Robert Millan 2009-12-21 20:22:12 +00:00
parent e930981361
commit 9b214e3a53
6 changed files with 129 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

75
util/mkisofs/msdos_partition.h Normal file
View file

@ -0,0 +1,75 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2004,2007 Free Software Foundation, Inc.
*
* GRUB 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.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MSDOS_PARTITION_H
#define MSDOS_PARTITION_H 1
#include <stdint.h>
/* The signature. */
#define MSDOS_PARTITION_SIGNATURE ((0xaa << 8) | 0x55)
/* This is not a flag actually, but used as if it were a flag. */
#define MSDOS_PARTITION_TYPE_HIDDEN_FLAG 0x10
/* The partition entry. */
struct msdos_partition_entry
{
/* If active, 0x80, otherwise, 0x00. */
uint8_t flag;
/* The head of the start. */
uint8_t start_head;
/* (S | ((C >> 2) & 0xC0)) where S is the sector of the start and C
is the cylinder of the start. Note that S is counted from one. */
uint8_t start_sector;
/* (C & 0xFF) where C is the cylinder of the start. */
uint8_t start_cylinder;
/* The partition type. */
uint8_t type;
/* The end versions of start_head, start_sector and start_cylinder,
respectively. */
uint8_t end_head;
uint8_t end_sector;
uint8_t end_cylinder;
/* The start sector. Note that this is counted from zero. */
uint32_t start;
/* The length in sector units. */
uint32_t length;
} __attribute__ ((packed));
/* The structure of MBR. */
struct msdos_partition_mbr
{
/* The code area (actually, including BPB). */
uint8_t code[446];
/* Four partition entries. */
struct msdos_partition_entry entries[4];
/* The signature 0xaa55. */
uint16_t signature;
} __attribute__ ((packed));
#endif