1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/* $OpenBSD: edlabel.c,v 1.3 1997/05/29 00:04:22 niklas Exp $ */
/* $NetBSD: edlabel.c,v 1.2 1996/08/02 11:22:11 ragge Exp $ */
/*
* Copyright (c) 1995 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of
* Lule}, Sweden and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define DKTYPENAMES
#include "sys/param.h"
#include "sys/disklabel.h"
#include "lib/libsa/stand.h"
#include "ufs/ffs/fs.h"
struct disklabel dlabel;
char bootblock[8192];
void
showlabel()
{
struct disklabel *lp;
struct partition *pp;
int i, j;
lp = &dlabel;
printf("\n\ndisk type %d (%s), %s: %s%s%s\n", lp->d_type, lp->d_type
<DKMAXTYPES?dktypenames[lp->d_type]:dktypenames[0], lp->d_typename,
lp->d_flags & D_REMOVABLE?" removable":"", lp->d_flags & D_ECC?
" ecc":"", lp->d_flags & D_BADSECT?" badsect":"");
printf("interleave %d, rpm %d, trackskew %d, cylinderskew %d\n",
lp->d_interleave, lp->d_rpm, lp->d_trackskew, lp->d_cylskew);
printf("headswitch %d, track-to-track %d, drivedata: %d %d %d %d %d\n",
lp->d_headswitch, lp->d_trkseek, lp->d_drivedata[0],
lp->d_drivedata[1], lp->d_drivedata[2], lp->d_drivedata[3],
lp->d_drivedata[4]);
printf("\nbytes/sector: %d\n", lp->d_secsize);
printf("sectors/track: %d\n", lp->d_nsectors);
printf("tracks/cylinder: %d\n", lp->d_ntracks);
printf("sectors/cylinder: %d\n", lp->d_secpercyl);
printf("cylinders: %d\n", lp->d_ncylinders);
printf("\n%d partitions:\n", lp->d_npartitions);
printf(" size offset\n");
pp = lp->d_partitions;
for (i = 0; i < lp->d_npartitions; i++) {
printf("%c: %d, %d\n", 97 + i, lp->d_partitions[i].p_size,
lp->d_partitions[i].p_offset);
}
printf("\n");
}
setdefaultlabel()
{
printf("Sorry, not implemented yet. Later...\n\n");
}
#define GETNUM(out, num) printf(out, num);gets(store); \
if (*store) num = atoi(store);
#define GETNUM2(out, num1, num) printf(out, num1, num);gets(store); \
if (*store) num = atoi(store);
#define GETSTR(out, str) printf(out, str);gets(store); \
if (*store) bcopy(store, str, strlen(store));
#define FLAGS(out, flag) printf(out, lp->d_flags & flag?'y':'n');gets(store); \
if (*store == 'y' || *store == 'Y') lp->d_flags |= flag; \
else lp->d_flags &= ~flag;
editlabel()
{
struct disklabel *lp;
char store[256];
int i;
lp = &dlabel;
printf("\nFirst set disk type. Valid types are:\n");
for (i = 0; i < DKMAXTYPES; i++)
printf("%d %s\n", i, dktypenames[i]);
GETNUM("\nNumeric disk type? [%d] ", lp->d_type);
GETSTR("Disk name? [%s] ", lp->d_typename);
FLAGS("badsectoring? [%c] ", D_BADSECT);
FLAGS("ecc? [%c] ", D_ECC);
FLAGS("removable? [%c] ", D_REMOVABLE);
GETNUM("Interleave? [%d] ", lp->d_interleave);
GETNUM("rpm? [%d] ", lp->d_rpm);
GETNUM("trackskew? [%d] ", lp->d_trackskew);
GETNUM("cylinderskew? [%d] ", lp->d_cylskew);
GETNUM("headswitch? [%d] ", lp->d_headswitch);
GETNUM("track-to-track? [%d] ", lp->d_trkseek);
GETNUM("drivedata 0? [%d] ", lp->d_drivedata[0]);
GETNUM("drivedata 1? [%d] ", lp->d_drivedata[1]);
GETNUM("drivedata 2? [%d] ", lp->d_drivedata[2]);
GETNUM("drivedata 3? [%d] ", lp->d_drivedata[3]);
GETNUM("drivedata 4? [%d] ", lp->d_drivedata[4]);
lp->d_secsize = 512;
GETNUM("\nbytes/sector? [%d] ", lp->d_secsize);
GETNUM("sectors/track? [%d] ", lp->d_nsectors);
GETNUM("tracks/cylinder? [%d] ", lp->d_ntracks);
lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks;
GETNUM("sectors/cylinder? [%d] ", lp->d_secpercyl);
GETNUM("cylinders? [%d] ", lp->d_ncylinders);
lp->d_npartitions = MAXPARTITIONS;
for (i = 0; i < 8; i++) {
GETNUM2("%c partition: offset? [%d] ", 97 + i,
lp->d_partitions[i].p_offset);
GETNUM(" size? [%d] ", lp->d_partitions[i].p_size);
}
}
int bootdev;
void
Xmain()
{
register bdev asm("r10");
struct open_file file;
char diskname[64], *msg, *filename, indata[64];
int i, rsize;
bootdev = bdev;
printf("With this program you can modify everything in the on-disk\n");
printf("disklabel. To do something useful you must know the exact\n");
printf("geometry of your disk, and have ideas about how you want\n");
printf("your partitions to be placed on disk. Some hints:\n");
printf("The a partition should be at least ~20000 blocks, the\n");
printf("b (swap) is depending on your use of the machine but it\n");
printf("should almost never be less than ~32000 blocks.\n\n");
printf("Disk geometry for most DEC disks can be found in the disktab");
printf("\nfile, and disknames is listed in the installation notes.\n");
printf("\nRemember that disk names is given as disk(adapt, ctrl, ");
printf("disk, part)\nwhen using the installation tools.\n\n");
autoconf();
igen:
printf("Label which disk? ");
gets(diskname);
if (*diskname == 0) goto igen;
if (devopen(&file, diskname, &filename)) {
printf("cannot open %s\n", diskname);
goto igen;
}
if ((*file.f_dev->dv_strategy)(file.f_devdata, F_READ,
(daddr_t)0, 8192, bootblock, &rsize)) {
printf("cannot read label block\n");
goto igen;
}
if (msg = (char *) getdisklabel(LABELOFFSET + bootblock, &dlabel))
printf("%s: %s\n", diskname, msg);
do {
printf("(E)dit, (S)how, (D)efaults, (W)rite, (Q)uit) : ");
gets(indata);
switch (*indata) {
case ('e'):
case ('E'):
editlabel();
break;
case ('s'):
case ('S'):
showlabel();
break;
case ('d'):
case ('D'):
setdefaultlabel();
break;
case ('w'):
case ('W'):
dlabel.d_magic = DISKMAGIC;
dlabel.d_magic2 = DISKMAGIC;
dlabel.d_bbsize = BBSIZE;
dlabel.d_sbsize = SBSIZE;
dlabel.d_checksum = 0;
dlabel.d_checksum = dkcksum(&dlabel);
bcopy(&dlabel, LABELOFFSET + bootblock,
sizeof(struct disklabel));
if ((*file.f_dev->dv_strategy)(file.f_devdata, F_WRITE,
(daddr_t)0, 8192, bootblock, &rsize)) {
printf("cannot write label sectors.\n");
break;
}
printf("\nThis program does not (yet) write");
printf(" bootblocks, only disklabel.\n");
printf("Remember to write the bootblocks from the ");
printf("miniroot later with the\ncommand ");
printf("\"disklabel -B <diskname>\".\n\n");
break;
case ('q'):
case ('Q'):
default:
break;
}
} while (*indata != 'q' && *indata != 'Q');
goto igen;
}
|
