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- Support MBR boot loaders that are larger than one sector size.

Browse Source 
- Axe the 1024 cylinder checks as they are no longer relevant.
This commit is contained in:
John Baldwin 2000-07-12 18:08:27 +00:00
parent be0fdc4646
commit fcb7c05133
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=63031
9 changed files with 99 additions and 81 deletions
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2
release/sysinstall/Makefile
View File

@ -60,7 +60,9 @@ makedevs.c: Makefile rtermcap keymap.h
>> makedevs.tmp
.if ${MACHINE} == "i386"
file2c 'u_char boot0[] = {' '};' < /boot/boot0 >> makedevs.tmp
echo "size_t boot0_size = sizeof(boot0);" >> makedevs.tmp
file2c 'u_char mbr[] = {' '};' < /boot/mbr >> makedevs.tmp
echo "size_t mbr_size = sizeof(mbr);" >> makedevs.tmp
.endif
mv makedevs.tmp makedevs.c

49
release/sysinstall/disks.c
View File

@ -164,11 +164,12 @@ print_command_summary()
}
#ifndef PC98
static u_char *
getBootMgr(char *dname)
static void
getBootMgr(char *dname, u_char **bootCode, size_t *bootCodeSize)
{
#ifndef __alpha__ /* only meaningful on x86 */
extern u_char mbr[], boot0[];
extern size_t mbr_size, boot0_size;
char str[80];
char *cp;
int i = 0;
@ -191,18 +192,21 @@ getBootMgr(char *dname)
if (cp || i) {
switch (BootMgr) {
case 0:
return boot0;
*bootCode = boot0;
*bootCodeSize = boot0_size;
return;
case 1:
return mbr;
*bootCode = mbr;
*bootCodeSize = mbr_size;
return;
case 2:
default:
break;
}
}
#endif
return NULL;
*bootCode = NULL;
*bootCodeSize = 0;
}
#endif
@ -234,6 +238,7 @@ diskPartition(Device *dev)
char *msg = NULL;
#ifndef PC98
u_char *mbrContents;
size_t mbrSize;
#endif
WINDOW *w = savescr();
Disk *d = (Disk *)dev->private;
@ -511,10 +516,12 @@ diskPartition(Device *dev)
* a FreeBSD "all disk" partition, or the disk is entirely FreeBSD.
*/
if (((d->chunks->part->type != freebsd) || (d->chunks->part->offset > 1)))
mbrContents = getBootMgr(d->name);
else
getBootMgr(d->name, &mbrContents, &mbrSize);
else {
mbrContents = NULL;
Set_Boot_Mgr(d, mbrContents);
mbrSize = 0;
}
Set_Boot_Mgr(d, mbrContents, mbrSize);
#endif /* !PC98 */
if (DITEM_STATUS(diskPartitionWrite(NULL)) != DITEM_SUCCESS)
@ -548,17 +555,22 @@ diskPartition(Device *dev)
* booteasy or a "standard" MBR -- both would be fatal in this case.
*/
#if 0
if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL
&& (mbrContents = getBootMgr(d->name)) != NULL)
Set_Boot_Mgr(d, mbrContents);
if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL) {
getBootMgr(d->name, &mbrContents, &mbrSize);
if (mbrContents != NULL)
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#else
/*
* Don't offer to update the MBR on this disk if the first "real" chunk looks like
* a FreeBSD "all disk" partition, or the disk is entirely FreeBSD.
*/
if (((d->chunks->part->type != freebsd) || (d->chunks->part->offset > 1)) &&
(mbrContents = getBootMgr(d->name)) != NULL)
Set_Boot_Mgr(d, mbrContents);
if ((d->chunks->part->type != freebsd) ||
(d->chunks->part->offset > 1)) {
getBootMgr(d->name, &mbrContents, &mbrSize);
if (mbrContents != NULL)
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#endif
#endif /* !PC98 */
break;
@ -764,6 +776,7 @@ diskPartitionNonInteractive(Device *dev)
int i, sz, all_disk = 0;
#ifndef PC98
u_char *mbrContents;
size_t mbrSize;
#endif
Disk *d = (Disk *)dev->private;
@ -857,8 +870,8 @@ diskPartitionNonInteractive(Device *dev)
}
#ifndef PC98
if (!all_disk) {
mbrContents = getBootMgr(d->name);
Set_Boot_Mgr(d, mbrContents);
getBootMgr(d->name, &mbrContents, &mbrSize);
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#endif
variable_set2(DISK_PARTITIONED, "yes", 0);

9
release/sysinstall/label.c
View File

@ -969,15 +969,6 @@ diskLabel(Device *dev)
clear_wins();
break;
}
if ((flags & CHUNK_IS_ROOT) && (tmp->flags & CHUNK_PAST_1024)) {
msgConfirm("This region cannot be used for your root partition as it starts\n"
"or extends past the 1024'th cylinder mark and is thus a\n"
"poor location to boot from. Please choose another\n"
"location (or smaller size) for your root partition and try again!");
Delete_Chunk(label_chunk_info[here].c->disk, tmp);
clear_wins();
break;
}
if (type != PART_SWAP) {
/* This is needed to tell the newfs -u about the size */
tmp->private_data = new_part(p->mountpoint, p->newfs, tmp->size);

2
usr.sbin/sade/Makefile
View File

@ -60,7 +60,9 @@ makedevs.c: Makefile rtermcap keymap.h
>> makedevs.tmp
.if ${MACHINE} == "i386"
file2c 'u_char boot0[] = {' '};' < /boot/boot0 >> makedevs.tmp
echo "size_t boot0_size = sizeof(boot0);" >> makedevs.tmp
file2c 'u_char mbr[] = {' '};' < /boot/mbr >> makedevs.tmp
echo "size_t mbr_size = sizeof(mbr);" >> makedevs.tmp
.endif
mv makedevs.tmp makedevs.c

49
usr.sbin/sade/disks.c
View File

@ -164,11 +164,12 @@ print_command_summary()
}
#ifndef PC98
static u_char *
getBootMgr(char *dname)
static void
getBootMgr(char *dname, u_char **bootCode, size_t *bootCodeSize)
{
#ifndef __alpha__ /* only meaningful on x86 */
extern u_char mbr[], boot0[];
extern size_t mbr_size, boot0_size;
char str[80];
char *cp;
int i = 0;
@ -191,18 +192,21 @@ getBootMgr(char *dname)
if (cp || i) {
switch (BootMgr) {
case 0:
return boot0;
*bootCode = boot0;
*bootCodeSize = boot0_size;
return;
case 1:
return mbr;
*bootCode = mbr;
*bootCodeSize = mbr_size;
return;
case 2:
default:
break;
}
}
#endif
return NULL;
*bootCode = NULL;
*bootCodeSize = 0;
}
#endif
@ -234,6 +238,7 @@ diskPartition(Device *dev)
char *msg = NULL;
#ifndef PC98
u_char *mbrContents;
size_t mbrSize;
#endif
WINDOW *w = savescr();
Disk *d = (Disk *)dev->private;
@ -511,10 +516,12 @@ diskPartition(Device *dev)
* a FreeBSD "all disk" partition, or the disk is entirely FreeBSD.
*/
if (((d->chunks->part->type != freebsd) || (d->chunks->part->offset > 1)))
mbrContents = getBootMgr(d->name);
else
getBootMgr(d->name, &mbrContents, &mbrSize);
else {
mbrContents = NULL;
Set_Boot_Mgr(d, mbrContents);
mbrSize = 0;
}
Set_Boot_Mgr(d, mbrContents, mbrSize);
#endif /* !PC98 */
if (DITEM_STATUS(diskPartitionWrite(NULL)) != DITEM_SUCCESS)
@ -548,17 +555,22 @@ diskPartition(Device *dev)
* booteasy or a "standard" MBR -- both would be fatal in this case.
*/
#if 0
if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL
&& (mbrContents = getBootMgr(d->name)) != NULL)
Set_Boot_Mgr(d, mbrContents);
if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL) {
getBootMgr(d->name, &mbrContents, &mbrSize);
if (mbrContents != NULL)
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#else
/*
* Don't offer to update the MBR on this disk if the first "real" chunk looks like
* a FreeBSD "all disk" partition, or the disk is entirely FreeBSD.
*/
if (((d->chunks->part->type != freebsd) || (d->chunks->part->offset > 1)) &&
(mbrContents = getBootMgr(d->name)) != NULL)
Set_Boot_Mgr(d, mbrContents);
if ((d->chunks->part->type != freebsd) ||
(d->chunks->part->offset > 1)) {
getBootMgr(d->name, &mbrContents, &mbrSize);
if (mbrContents != NULL)
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#endif
#endif /* !PC98 */
break;
@ -764,6 +776,7 @@ diskPartitionNonInteractive(Device *dev)
int i, sz, all_disk = 0;
#ifndef PC98
u_char *mbrContents;
size_t mbrSize;
#endif
Disk *d = (Disk *)dev->private;
@ -857,8 +870,8 @@ diskPartitionNonInteractive(Device *dev)
}
#ifndef PC98
if (!all_disk) {
mbrContents = getBootMgr(d->name);
Set_Boot_Mgr(d, mbrContents);
getBootMgr(d->name, &mbrContents, &mbrSize);
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#endif
variable_set2(DISK_PARTITIONED, "yes", 0);

9
usr.sbin/sade/label.c
View File

@ -969,15 +969,6 @@ diskLabel(Device *dev)
clear_wins();
break;
}
if ((flags & CHUNK_IS_ROOT) && (tmp->flags & CHUNK_PAST_1024)) {
msgConfirm("This region cannot be used for your root partition as it starts\n"
"or extends past the 1024'th cylinder mark and is thus a\n"
"poor location to boot from. Please choose another\n"
"location (or smaller size) for your root partition and try again!");
Delete_Chunk(label_chunk_info[here].c->disk, tmp);
clear_wins();
break;
}
if (type != PART_SWAP) {
/* This is needed to tell the newfs -u about the size */
tmp->private_data = new_part(p->mountpoint, p->newfs, tmp->size);

2
usr.sbin/sysinstall/Makefile
View File

@ -60,7 +60,9 @@ makedevs.c: Makefile rtermcap keymap.h
>> makedevs.tmp
.if ${MACHINE} == "i386"
file2c 'u_char boot0[] = {' '};' < /boot/boot0 >> makedevs.tmp
echo "size_t boot0_size = sizeof(boot0);" >> makedevs.tmp
file2c 'u_char mbr[] = {' '};' < /boot/mbr >> makedevs.tmp
echo "size_t mbr_size = sizeof(mbr);" >> makedevs.tmp
.endif
mv makedevs.tmp makedevs.c

49
usr.sbin/sysinstall/disks.c
View File

@ -164,11 +164,12 @@ print_command_summary()
}
#ifndef PC98
static u_char *
getBootMgr(char *dname)
static void
getBootMgr(char *dname, u_char **bootCode, size_t *bootCodeSize)
{
#ifndef __alpha__ /* only meaningful on x86 */
extern u_char mbr[], boot0[];
extern size_t mbr_size, boot0_size;
char str[80];
char *cp;
int i = 0;
@ -191,18 +192,21 @@ getBootMgr(char *dname)
if (cp || i) {
switch (BootMgr) {
case 0:
return boot0;
*bootCode = boot0;
*bootCodeSize = boot0_size;
return;
case 1:
return mbr;
*bootCode = mbr;
*bootCodeSize = mbr_size;
return;
case 2:
default:
break;
}
}
#endif
return NULL;
*bootCode = NULL;
*bootCodeSize = 0;
}
#endif
@ -234,6 +238,7 @@ diskPartition(Device *dev)
char *msg = NULL;
#ifndef PC98
u_char *mbrContents;
size_t mbrSize;
#endif
WINDOW *w = savescr();
Disk *d = (Disk *)dev->private;
@ -511,10 +516,12 @@ diskPartition(Device *dev)
* a FreeBSD "all disk" partition, or the disk is entirely FreeBSD.
*/
if (((d->chunks->part->type != freebsd) || (d->chunks->part->offset > 1)))
mbrContents = getBootMgr(d->name);
else
getBootMgr(d->name, &mbrContents, &mbrSize);
else {
mbrContents = NULL;
Set_Boot_Mgr(d, mbrContents);
mbrSize = 0;
}
Set_Boot_Mgr(d, mbrContents, mbrSize);
#endif /* !PC98 */
if (DITEM_STATUS(diskPartitionWrite(NULL)) != DITEM_SUCCESS)
@ -548,17 +555,22 @@ diskPartition(Device *dev)
* booteasy or a "standard" MBR -- both would be fatal in this case.
*/
#if 0
if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL
&& (mbrContents = getBootMgr(d->name)) != NULL)
Set_Boot_Mgr(d, mbrContents);
if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL) {
getBootMgr(d->name, &mbrContents, &mbrSize);
if (mbrContents != NULL)
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#else
/*
* Don't offer to update the MBR on this disk if the first "real" chunk looks like
* a FreeBSD "all disk" partition, or the disk is entirely FreeBSD.
*/
if (((d->chunks->part->type != freebsd) || (d->chunks->part->offset > 1)) &&
(mbrContents = getBootMgr(d->name)) != NULL)
Set_Boot_Mgr(d, mbrContents);
if ((d->chunks->part->type != freebsd) ||
(d->chunks->part->offset > 1)) {
getBootMgr(d->name, &mbrContents, &mbrSize);
if (mbrContents != NULL)
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#endif
#endif /* !PC98 */
break;
@ -764,6 +776,7 @@ diskPartitionNonInteractive(Device *dev)
int i, sz, all_disk = 0;
#ifndef PC98
u_char *mbrContents;
size_t mbrSize;
#endif
Disk *d = (Disk *)dev->private;
@ -857,8 +870,8 @@ diskPartitionNonInteractive(Device *dev)
}
#ifndef PC98
if (!all_disk) {
mbrContents = getBootMgr(d->name);
Set_Boot_Mgr(d, mbrContents);
getBootMgr(d->name, &mbrContents, &mbrSize);
Set_Boot_Mgr(d, mbrContents, mbrSize);
}
#endif
variable_set2(DISK_PARTITIONED, "yes", 0);

9
usr.sbin/sysinstall/label.c
View File

@ -969,15 +969,6 @@ diskLabel(Device *dev)
clear_wins();
break;
}
if ((flags & CHUNK_IS_ROOT) && (tmp->flags & CHUNK_PAST_1024)) {
msgConfirm("This region cannot be used for your root partition as it starts\n"
"or extends past the 1024'th cylinder mark and is thus a\n"
"poor location to boot from. Please choose another\n"
"location (or smaller size) for your root partition and try again!");
Delete_Chunk(label_chunk_info[here].c->disk, tmp);
clear_wins();
break;
}
if (type != PART_SWAP) {
/* This is needed to tell the newfs -u about the size */
tmp->private_data = new_part(p->mountpoint, p->newfs, tmp->size);