[J-u-boot.git] / disk / part_amiga.c

/*
 * (C) Copyright 2001
 * Hans-Joerg Frieden, Hyperion Entertainment
 * [email protected]
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */
#include <common.h>
#include <command.h>
#include <ide.h>
#include "part_amiga.h"

#if ((CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_AMIGA_PARTITION)

#undef AMIGA_DEBUG

#ifdef AMIGA_DEBUG
#define PRINTF(fmt, args...) printf(fmt ,##args)
#else
#define PRINTF(fmt, args...)
#endif

struct block_header
{
    u32 id;
    u32 summed_longs;
    s32 chk_sum;
};

static unsigned char block_buffer[DEFAULT_SECTOR_SIZE];
static struct rigid_disk_block rdb = {0};
static struct bootcode_block bootcode = {0};

/*
 * Copy a bcpl to a c string
 */
static void bcpl_strcpy(char *to, char *from)
{
    int len = *from++;

    while (len)
    {
	*to++ = *from++;
	len--;
    }
    *to = 0;
}

/*
 * Print a BCPL String. BCPL strings start with a byte with the length
 * of the string, and don't contain a terminating nul character
 */
static void bstr_print(char *string)
{
    int len = *string++;
    char buffer[256];
    int i;

    i = 0;
    while (len)
    {
	buffer[i++] = *string++;
	len--;
    }

    buffer[i] = 0;
    printf("%-10s", buffer);
}

/*
 * Sum a block. The checksum of a block must end up at zero
 * to be valid. The chk_sum field is selected so that adding
 * it yields zero.
 */
int sum_block(struct block_header *header)
{
    s32 *block = (s32 *)header;
    u32 i;
    s32 sum = 0;

    for (i = 0; i < header->summed_longs; i++)
	sum += *block++;

    return (sum != 0);
}

/*
 * Print an AmigaOS disk type. Disk types are a four-byte identifier
 * describing the file system. They are usually written as a three-letter
 * word followed by a backslash and a version number. For example,
 * DOS\0 would be the original file system. SFS\0 would be SmartFileSystem.
 * DOS\1 is FFS.
 */
static void print_disk_type(u32 disk_type)
{
    char buffer[6];
    buffer[0] = (disk_type & 0xFF000000)>>24;
    buffer[1] = (disk_type & 0x00FF0000)>>16;
    buffer[2] = (disk_type & 0x0000FF00)>>8;
    buffer[3] = '\\';
    buffer[4] = (disk_type & 0x000000FF) + '0';
    buffer[5] = 0;
    printf("%s", buffer);
}

/*
 * Print the info contained within the given partition block
 */
static void print_part_info(struct partition_block *p)
{
    struct amiga_part_geometry *g;

    g = (struct amiga_part_geometry *)&(p->environment);

    bstr_print(p->drive_name);
    printf("%6d\t%6d\t",
	   g->low_cyl * g->block_per_track * g->surfaces ,
	   (g->high_cyl - g->low_cyl + 1) * g->block_per_track * g->surfaces - 1);
    print_disk_type(g->dos_type);
    printf("\t%5d\n", g->boot_priority);
}

/*
 * Search for the Rigid Disk Block. The rigid disk block is required
 * to be within the first 16 blocks of a drive, needs to have
 * the ID AMIGA_ID_RDISK ('RDSK') and needs to have a valid
 * sum-to-zero checksum
 */
struct rigid_disk_block *get_rdisk(block_dev_desc_t *dev_desc)
{
    int i;
    int limit;
    char *s;

    s = getenv("amiga_scanlimit");
    if (s)
	limit = atoi(s);
    else
	limit = AMIGA_BLOCK_LIMIT;

    for (i=0; i<limit; i++)
    {
	ulong res = dev_desc->block_read(dev_desc->dev, i, 1,
					 (ulong *)block_buffer);
	if (res == 1)
	{
	    struct rigid_disk_block *trdb = (struct rigid_disk_block *)block_buffer;
	    if (trdb->id == AMIGA_ID_RDISK)
	    {
		PRINTF("Rigid disk block suspect at %d, checking checksum\n",i);
		if (sum_block((struct block_header *)block_buffer) == 0)
		{
		    PRINTF("FOUND\n");
		    memcpy(&rdb, trdb, sizeof(struct rigid_disk_block));
		    return (struct rigid_disk_block *)&rdb;
		}
	    }
	}
    }
    PRINTF("Done scanning, no RDB found\n");
    return NULL;
}

/*
 * Search for boot code
 * Again, the first boot block must be located somewhere in the first 16 blocks, or rooted in the
 * Ridgid disk block
 */

struct bootcode_block *get_bootcode(block_dev_desc_t *dev_desc)
{
    int i;
    int limit;
    char *s;

    s = getenv("amiga_scanlimit");
    if (s)
	limit = atoi(s);
    else
	limit = AMIGA_BLOCK_LIMIT;

    PRINTF("Scanning for BOOT from 0 to %d\n", limit);

    for (i = 0; i < limit; i++)
    {
	ulong res = dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)block_buffer);
	if (res == 1)
	{
	    struct bootcode_block *boot = (struct bootcode_block *)block_buffer;
	    if (boot->id == AMIGA_ID_BOOT)
	    {
		PRINTF("BOOT block at %d, checking checksum\n", i);
		if (sum_block((struct block_header *)block_buffer) == 0)
		{
		    PRINTF("Found valid bootcode block\n");
		    memcpy(&bootcode, boot, sizeof(struct bootcode_block));
		    return &bootcode;
		}
	    }
	}
    }

    PRINTF("No boot code found on disk\n");
    return 0;
}

/*
 * Test if the given partition has an Amiga partition table/Rigid
 * Disk block
 */
int test_part_amiga(block_dev_desc_t *dev_desc)
{
    struct rigid_disk_block *rdb;
    struct bootcode_block *bootcode;

    PRINTF("test_part_amiga: Testing for an Amiga RDB partition\n");

    rdb = get_rdisk(dev_desc);
    if (rdb)
    {
	bootcode = get_bootcode(dev_desc);
	if (bootcode)
	    PRINTF("test_part_amiga: bootable Amiga disk\n");
	else
	    PRINTF("test_part_amiga: non-bootable Amiga disk\n");

	return 0;
    }
    else
    {
	PRINTF("test_part_amiga: no RDB found\n");
	return -1;
    }

}

/*
 * Find partition number partnum on the given drive.
 */
static struct partition_block *find_partition(block_dev_desc_t *dev_desc, int partnum)
{
    struct rigid_disk_block *rdb;
    struct partition_block *p;
    u32 block;

    PRINTF("Trying to find partition block %d\n", partnum);
    rdb = get_rdisk(dev_desc);
    if (!rdb)
    {
	PRINTF("find_partition: no rdb found\n");
	return NULL;
    }

    PRINTF("find_partition: Scanning partition list\n");

    block = rdb->partition_list;
    PRINTF("find_partition: partition list at 0x%x\n", block);

    while (block != 0xFFFFFFFF)
    {
	ulong res = dev_desc->block_read(dev_desc->dev, block, 1,
					 (ulong *)block_buffer);
	if (res == 1)
	{
	    p = (struct partition_block *)block_buffer;
	    if (p->id == AMIGA_ID_PART)
	    {
		PRINTF("PART block suspect at 0x%x, checking checksum\n",block);
		if (sum_block((struct block_header *)p) == 0)
		{
		    if (partnum == 0) break;
		    else
		    {
			partnum--;
			block = p->next;
		    }
		}
	    } else block = 0xFFFFFFFF;
	} else block = 0xFFFFFFFF;
    }

    if (block == 0xFFFFFFFF)
    {
	PRINTF("PART block not found\n");
	return NULL;
    }

    return (struct partition_block *)block_buffer;
}

/*
 * Get info about a partition
 */
int get_partition_info_amiga (block_dev_desc_t *dev_desc, int part, disk_partition_t *info)
{
    struct partition_block *p = find_partition(dev_desc, part-1);
    struct amiga_part_geometry *g;
    u32 disk_type;

    if (!p) return -1;

    g = (struct amiga_part_geometry *)&(p->environment);
    info->start = g->low_cyl  * g->block_per_track * g->surfaces;
    info->size  = (g->high_cyl - g->low_cyl + 1) * g->block_per_track * g->surfaces - 1;
    info->blksz = rdb.block_bytes;
    bcpl_strcpy(info->name, p->drive_name);


    disk_type = g->dos_type;

    info->type[0] = (disk_type & 0xFF000000)>>24;
    info->type[1] = (disk_type & 0x00FF0000)>>16;
    info->type[2] = (disk_type & 0x0000FF00)>>8;
    info->type[3] = '\\';
    info->type[4] = (disk_type & 0x000000FF) + '0';
    info->type[5] = 0;

    return 0;
}

void print_part_amiga (block_dev_desc_t *dev_desc)
{
    struct rigid_disk_block *rdb;
    struct bootcode_block *boot;
    struct partition_block *p;
    u32 block;
    int i = 1;

    rdb = get_rdisk(dev_desc);
    if (!rdb)
    {
	PRINTF("print_part_amiga: no rdb found\n");
	return;
    }

    PRINTF("print_part_amiga: Scanning partition list\n");

    block = rdb->partition_list;
    PRINTF("print_part_amiga: partition list at 0x%x\n", block);

    printf("Summary:  DiskBlockSize: %d\n"
	   "          Cylinders    : %d\n"
	   "          Sectors/Track: %d\n"
	   "          Heads        : %d\n\n",
	   rdb->block_bytes, rdb->cylinders, rdb->sectors,
	   rdb->heads);

    printf("                 First   Num. \n"
	   "Nr.  Part. Name  Block   Block  Type        Boot Priority\n");

    while (block != 0xFFFFFFFF)
    {
	ulong res;

	PRINTF("Trying to load block #0x%X\n", block);

	res = dev_desc->block_read(dev_desc->dev, block, 1,
				   (ulong *)block_buffer);
	if (res == 1)
	{
	    p = (struct partition_block *)block_buffer;
	    if (p->id == AMIGA_ID_PART)
	    {
		PRINTF("PART block suspect at 0x%x, checking checksum\n",block);
		if (sum_block((struct block_header *)p) == 0)
		{
		    printf("%-4d ", i); i++;
		    print_part_info(p);
		    block = p->next;
		}
	    } else block = 0xFFFFFFFF;
	} else block = 0xFFFFFFFF;
    }

    boot = get_bootcode(dev_desc);
    if (boot)
    {
	printf("Disk is bootable\n");
    }
}

#endif
Commit	Line	Data
c7de829c WD	1	/*
c7de829c WD	2	* (C) Copyright 2001
8bde7f77	3	* Hans-Joerg Frieden, Hyperion Entertainment
c7de829c WD	4	* [email protected]
	5	*
	6	* See file CREDITS for list of people who contributed to this
	7	* project.
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as
	11	* published by the Free Software Foundation; either version 2 of
	12	* the License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	22	* MA 02111-1307 USA
	23	*/
	24	#include <common.h>
	25	#include <command.h>
	26	#include <ide.h>
c7de829c WD	27	#include "part_amiga.h"
	28
	29	#if ((CONFIG_COMMANDS & CFG_CMD_IDE) \|\| (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_AMIGA_PARTITION)
	30
	31	#undef AMIGA_DEBUG
	32
	33	#ifdef AMIGA_DEBUG
	34	#define PRINTF(fmt, args...) printf(fmt ,##args)
	35	#else
	36	#define PRINTF(fmt, args...)
	37	#endif
	38
	39	struct block_header
	40	{
	41	u32 id;
	42	u32 summed_longs;
	43	s32 chk_sum;
	44	};
	45
	46	static unsigned char block_buffer[DEFAULT_SECTOR_SIZE];
	47	static struct rigid_disk_block rdb = {0};
	48	static struct bootcode_block bootcode = {0};
	49
	50	/*
	51	* Copy a bcpl to a c string
	52	*/
	53	static void bcpl_strcpy(char to, char from)
	54	{
	55	int len = *from++;
	56
	57	while (len)
	58	{
	59	to++ = from++;
	60	len--;
	61	}
	62	*to = 0;
	63	}
	64
	65	/*
	66	* Print a BCPL String. BCPL strings start with a byte with the length
	67	* of the string, and don't contain a terminating nul character
	68	*/
	69	static void bstr_print(char *string)
	70	{
	71	int len = *string++;
	72	char buffer[256];
	73	int i;
8bde7f77	74
c7de829c WD	75	i = 0;
	76	while (len)
	77	{
	78	buffer[i++] = *string++;
	79	len--;
	80	}
	81
	82	buffer[i] = 0;
	83	printf("%-10s", buffer);
	84	}
	85
	86	/*
	87	* Sum a block. The checksum of a block must end up at zero
	88	* to be valid. The chk_sum field is selected so that adding
	89	* it yields zero.
	90	*/
	91	int sum_block(struct block_header *header)
	92	{
	93	s32 block = (s32 )header;
	94	u32 i;
	95	s32 sum = 0;
	96
	97	for (i = 0; i < header->summed_longs; i++)
	98	sum += *block++;
8bde7f77	99
c7de829c WD	100	return (sum != 0);
	101	}
	102
	103	/*
	104	* Print an AmigaOS disk type. Disk types are a four-byte identifier
	105	* describing the file system. They are usually written as a three-letter
	106	* word followed by a backslash and a version number. For example,
	107	* DOS\0 would be the original file system. SFS\0 would be SmartFileSystem.
	108	* DOS\1 is FFS.
	109	*/
	110	static void print_disk_type(u32 disk_type)
	111	{
	112	char buffer[6];
	113	buffer[0] = (disk_type & 0xFF000000)>>24;
	114	buffer[1] = (disk_type & 0x00FF0000)>>16;
	115	buffer[2] = (disk_type & 0x0000FF00)>>8;
	116	buffer[3] = '\\';
	117	buffer[4] = (disk_type & 0x000000FF) + '0';
	118	buffer[5] = 0;
	119	printf("%s", buffer);
	120	}
	121
	122	/*
	123	* Print the info contained within the given partition block
	124	*/
	125	static void print_part_info(struct partition_block *p)
	126	{
	127	struct amiga_part_geometry *g;
8bde7f77	128
c7de829c WD	129	g = (struct amiga_part_geometry *)&(p->environment);
	130
	131	bstr_print(p->drive_name);
8bde7f77 WD	132	printf("%6d\t%6d\t",
8bde7f77 WD	133	g->low_cyl * g->block_per_track * g->surfaces ,
c7de829c WD	134	(g->high_cyl - g->low_cyl + 1) * g->block_per_track * g->surfaces - 1);
	135	print_disk_type(g->dos_type);
	136	printf("\t%5d\n", g->boot_priority);
	137	}
	138
	139	/*
	140	* Search for the Rigid Disk Block. The rigid disk block is required
	141	* to be within the first 16 blocks of a drive, needs to have
	142	* the ID AMIGA_ID_RDISK ('RDSK') and needs to have a valid
	143	* sum-to-zero checksum
	144	*/
	145	struct rigid_disk_block get_rdisk(block_dev_desc_t dev_desc)
	146	{
	147	int i;
	148	int limit;
	149	char *s;
	150
	151	s = getenv("amiga_scanlimit");
	152	if (s)
	153	limit = atoi(s);
	154	else
	155	limit = AMIGA_BLOCK_LIMIT;
	156
	157	for (i=0; i<limit; i++)
	158	{
	159	ulong res = dev_desc->block_read(dev_desc->dev, i, 1,
	160	(ulong *)block_buffer);
	161	if (res == 1)
	162	{
	163	struct rigid_disk_block trdb = (struct rigid_disk_block )block_buffer;
	164	if (trdb->id == AMIGA_ID_RDISK)
	165	{
	166	PRINTF("Rigid disk block suspect at %d, checking checksum\n",i);
	167	if (sum_block((struct block_header *)block_buffer) == 0)
	168	{
	169	PRINTF("FOUND\n");
	170	memcpy(&rdb, trdb, sizeof(struct rigid_disk_block));
	171	return (struct rigid_disk_block *)&rdb;
	172	}
	173	}
	174	}
	175	}
	176	PRINTF("Done scanning, no RDB found\n");
	177	return NULL;
	178	}
	179
8bde7f77	180	/*
c7de829c WD	181	* Search for boot code
	182	* Again, the first boot block must be located somewhere in the first 16 blocks, or rooted in the
	183	* Ridgid disk block
	184	*/
	185
	186	struct bootcode_block get_bootcode(block_dev_desc_t dev_desc)
	187	{
	188	int i;
	189	int limit;
	190	char *s;
	191
	192	s = getenv("amiga_scanlimit");
	193	if (s)
	194	limit = atoi(s);
	195	else
	196	limit = AMIGA_BLOCK_LIMIT;
	197
	198	PRINTF("Scanning for BOOT from 0 to %d\n", limit);
	199
	200	for (i = 0; i < limit; i++)
	201	{
	202	ulong res = dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)block_buffer);
	203	if (res == 1)
	204	{
	205	struct bootcode_block boot = (struct bootcode_block )block_buffer;
	206	if (boot->id == AMIGA_ID_BOOT)
	207	{
	208	PRINTF("BOOT block at %d, checking checksum\n", i);
	209	if (sum_block((struct block_header *)block_buffer) == 0)
	210	{
	211	PRINTF("Found valid bootcode block\n");
	212	memcpy(&bootcode, boot, sizeof(struct bootcode_block));
	213	return &bootcode;
	214	}
	215	}
	216	}
	217	}
	218
	219	PRINTF("No boot code found on disk\n");
	220	return 0;
	221	}
	222
8bde7f77	223	/*
c7de829c WD	224	* Test if the given partition has an Amiga partition table/Rigid
	225	* Disk block
	226	*/
	227	int test_part_amiga(block_dev_desc_t *dev_desc)
	228	{
	229	struct rigid_disk_block *rdb;
	230	struct bootcode_block *bootcode;
	231
	232	PRINTF("test_part_amiga: Testing for an Amiga RDB partition\n");
8bde7f77	233
c7de829c WD	234	rdb = get_rdisk(dev_desc);
	235	if (rdb)
	236	{
	237	bootcode = get_bootcode(dev_desc);
	238	if (bootcode)
	239	PRINTF("test_part_amiga: bootable Amiga disk\n");
	240	else
	241	PRINTF("test_part_amiga: non-bootable Amiga disk\n");
	242
	243	return 0;
	244	}
8bde7f77	245	else
c7de829c WD	246	{
	247	PRINTF("test_part_amiga: no RDB found\n");
	248	return -1;
	249	}
	250
	251	}
	252
8bde7f77	253	/*
c7de829c WD	254	* Find partition number partnum on the given drive.
	255	*/
	256	static struct partition_block find_partition(block_dev_desc_t dev_desc, int partnum)
	257	{
	258	struct rigid_disk_block *rdb;
	259	struct partition_block *p;
	260	u32 block;
	261
	262	PRINTF("Trying to find partition block %d\n", partnum);
	263	rdb = get_rdisk(dev_desc);
8bde7f77	264	if (!rdb)
c7de829c WD	265	{
	266	PRINTF("find_partition: no rdb found\n");
	267	return NULL;
	268	}
8bde7f77	269
c7de829c WD	270	PRINTF("find_partition: Scanning partition list\n");
	271
	272	block = rdb->partition_list;
	273	PRINTF("find_partition: partition list at 0x%x\n", block);
	274
	275	while (block != 0xFFFFFFFF)
	276	{
	277	ulong res = dev_desc->block_read(dev_desc->dev, block, 1,
	278	(ulong *)block_buffer);
	279	if (res == 1)
	280	{
	281	p = (struct partition_block *)block_buffer;
	282	if (p->id == AMIGA_ID_PART)
	283	{
	284	PRINTF("PART block suspect at 0x%x, checking checksum\n",block);
	285	if (sum_block((struct block_header *)p) == 0)
	286	{
	287	if (partnum == 0) break;
8bde7f77	288	else
c7de829c WD	289	{
	290	partnum--;
	291	block = p->next;
	292	}
	293	}
	294	} else block = 0xFFFFFFFF;
	295	} else block = 0xFFFFFFFF;
	296	}
	297
8bde7f77	298	if (block == 0xFFFFFFFF)
c7de829c WD	299	{
	300	PRINTF("PART block not found\n");
	301	return NULL;
	302	}
	303
	304	return (struct partition_block *)block_buffer;
	305	}
	306
8bde7f77	307	/*
c7de829c WD	308	* Get info about a partition
	309	*/
	310	int get_partition_info_amiga (block_dev_desc_t dev_desc, int part, disk_partition_t info)
	311	{
	312	struct partition_block *p = find_partition(dev_desc, part-1);
	313	struct amiga_part_geometry *g;
	314	u32 disk_type;
	315
	316	if (!p) return -1;
	317
	318	g = (struct amiga_part_geometry *)&(p->environment);
	319	info->start = g->low_cyl * g->block_per_track * g->surfaces;
	320	info->size = (g->high_cyl - g->low_cyl + 1) * g->block_per_track * g->surfaces - 1;
	321	info->blksz = rdb.block_bytes;
	322	bcpl_strcpy(info->name, p->drive_name);
8bde7f77	323
c7de829c WD	324
	325	disk_type = g->dos_type;
	326
	327	info->type[0] = (disk_type & 0xFF000000)>>24;
	328	info->type[1] = (disk_type & 0x00FF0000)>>16;
	329	info->type[2] = (disk_type & 0x0000FF00)>>8;
	330	info->type[3] = '\\';
	331	info->type[4] = (disk_type & 0x000000FF) + '0';
	332	info->type[5] = 0;
8bde7f77	333
c7de829c WD	334	return 0;
	335	}
	336
	337	void print_part_amiga (block_dev_desc_t *dev_desc)
8bde7f77	338	{
c7de829c WD	339	struct rigid_disk_block *rdb;
	340	struct bootcode_block *boot;
	341	struct partition_block *p;
	342	u32 block;
	343	int i = 1;
	344
	345	rdb = get_rdisk(dev_desc);
8bde7f77	346	if (!rdb)
c7de829c WD	347	{
	348	PRINTF("print_part_amiga: no rdb found\n");
	349	return;
	350	}
8bde7f77	351
c7de829c WD	352	PRINTF("print_part_amiga: Scanning partition list\n");
	353
	354	block = rdb->partition_list;
	355	PRINTF("print_part_amiga: partition list at 0x%x\n", block);
	356
	357	printf("Summary: DiskBlockSize: %d\n"
	358	" Cylinders : %d\n"
	359	" Sectors/Track: %d\n"
	360	" Heads : %d\n\n",
	361	rdb->block_bytes, rdb->cylinders, rdb->sectors,
	362	rdb->heads);
	363
	364	printf(" First Num. \n"
	365	"Nr. Part. Name Block Block Type Boot Priority\n");
	366
	367	while (block != 0xFFFFFFFF)
	368	{
	369	ulong res;
	370
	371	PRINTF("Trying to load block #0x%X\n", block);
8bde7f77	372
c7de829c WD	373	res = dev_desc->block_read(dev_desc->dev, block, 1,
	374	(ulong *)block_buffer);
	375	if (res == 1)
	376	{
	377	p = (struct partition_block *)block_buffer;
	378	if (p->id == AMIGA_ID_PART)
	379	{
	380	PRINTF("PART block suspect at 0x%x, checking checksum\n",block);
	381	if (sum_block((struct block_header *)p) == 0)
	382	{
	383	printf("%-4d ", i); i++;
	384	print_part_info(p);
	385	block = p->next;
	386	}
	387	} else block = 0xFFFFFFFF;
	388	} else block = 0xFFFFFFFF;
	389	}
	390
	391	boot = get_bootcode(dev_desc);
	392	if (boot)
	393	{
	394	printf("Disk is bootable\n");
	395	}
	396	}
	397
	398	#endif