disks.c revision 18650
1/* 2 * The new sysinstall program. 3 * 4 * This is probably the last program in the `sysinstall' line - the next 5 * generation being essentially a complete rewrite. 6 * 7 * $Id: disks.c,v 1.65 1996/10/01 04:56:31 jkh Exp $ 8 * 9 * Copyright (c) 1995 10 * Jordan Hubbard. All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer, 17 * verbatim and that no modifications are made prior to this 18 * point in the file. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37#include "sysinstall.h" 38#include <ctype.h> 39#include <sys/disklabel.h> 40 41/* Where we start displaying chunk information on the screen */ 42#define CHUNK_START_ROW 5 43 44/* Where we keep track of MBR chunks */ 45static struct chunk *chunk_info[16]; 46static int current_chunk; 47 48static void 49record_chunks(Disk *d) 50{ 51 struct chunk *c1 = NULL; 52 int i = 0; 53 int last_free = 0; 54 55 if (!d->chunks) 56 msgFatal("No chunk list found for %s!", d->name); 57 58 for (c1 = d->chunks->part; c1; c1 = c1->next) { 59 if (c1->type == unused && c1->size > last_free) { 60 last_free = c1->size; 61 current_chunk = i; 62 } 63 chunk_info[i++] = c1; 64 } 65 chunk_info[i] = NULL; 66} 67 68static void 69print_chunks(Disk *d) 70{ 71 int row; 72 int i, sz; 73 74 for (i = sz = 0; chunk_info[i]; i++) 75 sz += chunk_info[i]->size; 76 if (d->bios_hd <= 1 && d->bios_sect <= 1) { 77 All_FreeBSD(d, TRUE); 78 d->bios_hd = d->bios_sect = d->bios_cyl = 1; 79 } 80 else if (d->bios_cyl > 65536 || d->bios_hd > 256 || d->bios_sect >= 64) { 81 dialog_clear_norefresh(); 82 msgConfirm("WARNING: A geometry of %d/%d/%d for %s is incorrect. Using\n" 83 "a default geometry of 64 heads and 32 sectors. If this geometry\n" 84 "is incorrect or you are unsure as to whether or not it's correct,\n" 85 "please consult the Hardware Guide in the Documentation submenu\n" 86 "or use the (G)eometry command to change it now.", d->bios_cyl, d->bios_hd, d->bios_sect, d->name); 87 d->bios_hd = 64; 88 d->bios_sect = 32; 89 d->bios_cyl = sz / ONE_MEG; 90 } 91 attrset(A_NORMAL); 92 mvaddstr(0, 0, "Disk name:\t"); 93 clrtobot(); 94 attrset(A_REVERSE); addstr(d->name); attrset(A_NORMAL); 95 attrset(A_REVERSE); mvaddstr(0, 55, "FDISK Partition Editor"); attrset(A_NORMAL); 96 mvprintw(1, 0, 97 "DISK Geometry:\t%lu cyls/%lu heads/%lu sectors", 98 d->bios_cyl, d->bios_hd, d->bios_sect); 99 mvprintw(3, 1, "%10s %10s %10s %8s %8s %8s %8s %8s", 100 "Offset", "Size", "End", "Name", "PType", "Desc", 101 "Subtype", "Flags"); 102 for (i = 0, row = CHUNK_START_ROW; chunk_info[i]; i++, row++) { 103 if (i == current_chunk) 104 attrset(ATTR_SELECTED); 105 mvprintw(row, 2, "%10ld %10lu %10lu %8s %8d %8s %8d\t%-6s", 106 chunk_info[i]->offset, chunk_info[i]->size, 107 chunk_info[i]->end, chunk_info[i]->name, 108 chunk_info[i]->type, chunk_n[chunk_info[i]->type], 109 chunk_info[i]->subtype, ShowChunkFlags(chunk_info[i])); 110 if (i == current_chunk) 111 attrset(A_NORMAL); 112 } 113} 114 115static void 116print_command_summary() 117{ 118 mvprintw(14, 0, "The following commands are supported (in upper or lower case):"); 119 mvprintw(16, 0, "A = Use Entire Disk B = Bad Block Scan C = Create Partition"); 120 mvprintw(17, 0, "D = Delete Partition G = Set Drive Geometry S = Set Bootable"); 121 mvprintw(18, 0, "U = Undo All Changes Q = Finish"); 122 if (!RunningAsInit) 123 mvprintw(18, 46, "W = Write Changes"); 124 mvprintw(21, 0, "Use F1 or ? to get more help, arrow keys to select."); 125 move(0, 0); 126} 127 128static u_char * 129getBootMgr(char *dname) 130{ 131 extern u_char mbr[], bteasy17[]; 132 char str[80]; 133 char *cp; 134 int i = 0; 135 136 cp = variable_get(VAR_BOOTMGR); 137 if (!cp) { 138 /* Figure out what kind of MBR the user wants */ 139 sprintf(str, "Install Boot Manager for drive %s?", dname); 140 MenuMBRType.title = str; 141 i = dmenuOpenSimple(&MenuMBRType, FALSE); 142 } 143 else { 144 if (!strncmp(cp, "boot", 4)) 145 BootMgr = 0; 146 else if (!strcmp(cp, "standard")) 147 BootMgr = 1; 148 else 149 BootMgr = 2; 150 } 151 if (cp || i) { 152 switch (BootMgr) { 153 case 0: 154 return bteasy17; 155 156 case 1: 157 return mbr; 158 159 case 2: 160 default: 161 break; 162 } 163 } 164 return NULL; 165} 166 167void 168diskPartition(Device *dev, Disk *d) 169{ 170 char *p; 171 int rv, key = 0; 172 Boolean chunking; 173 char *msg = NULL; 174 u_char *mbrContents; 175 WINDOW *w = savescr(); 176 177 chunking = TRUE; 178 keypad(stdscr, TRUE); 179 180 /* Flush both the dialog and curses library views of the screen 181 since we don't always know who called us */ 182 dialog_clear_norefresh(), clear(); 183 184 while (chunking) { 185 /* Set up the chunk array */ 186 record_chunks(d); 187 188 /* Now print our overall state */ 189 print_chunks(d); 190 print_command_summary(); 191 if (msg) { 192 attrset(title_attr); mvprintw(23, 0, msg); attrset(A_NORMAL); 193 beep(); 194 msg = NULL; 195 } 196 else { 197 move(23, 0); 198 clrtoeol(); 199 } 200 201 /* Get command character */ 202 key = getch(); 203 switch (toupper(key)) { 204 205 /* redraw */ 206 case '\014': /* ^L */ 207 clear(); 208 msg = NULL; 209 break; 210 211 case KEY_UP: 212 case '-': 213 if (current_chunk != 0) 214 --current_chunk; 215 break; 216 217 case KEY_DOWN: 218 case '+': 219 case '\r': 220 case '\n': 221 if (chunk_info[current_chunk + 1]) 222 ++current_chunk; 223 break; 224 225 case KEY_HOME: 226 current_chunk = 0; 227 break; 228 229 case KEY_END: 230 while (chunk_info[current_chunk + 1]) 231 ++current_chunk; 232 break; 233 234 case KEY_F(1): 235 case '?': 236 systemDisplayHelp("slice"); 237 clear(); 238 break; 239 240 case 'A': 241 rv = msgYesNo("Do you want to do this with a true partition entry\n" 242 "so as to remain cooperative with any future possible\n" 243 "operating systems on the drive(s)?"); 244 if (rv) { 245 rv = !msgYesNo("This is dangerous in that it will make the drive totally\n" 246 "uncooperative with other potential operating systems on the\n" 247 "same disk. It will lead instead to a totally dedicated disk,\n" 248 "starting at the very first sector, bypassing all BIOS geometry\n" 249 "considerations. This precludes the existance of any boot\n" 250 "manager or other stuff in sector 0, since the BSD bootstrap\n" 251 "will live there.\n" 252 "You will run into serious trouble with ST-506 and ESDI drives\n" 253 "and possibly some IDE drives (e.g. drives running under the\n" 254 "control of sort of disk manager). SCSI drives are considerably\n" 255 "less at risk.\n\n" 256 "Do you insist on dedicating the entire disk this way?"); 257 } 258 All_FreeBSD(d, rv); 259 if (rv) 260 d->bios_hd = d->bios_sect = d->bios_cyl = 1; 261 variable_set2(DISK_PARTITIONED, "yes"); 262 clear(); 263 break; 264 265 case 'B': 266 if (chunk_info[current_chunk]->type != freebsd) 267 msg = "Can only scan for bad blocks in FreeBSD partition."; 268 else if (strncmp(d->name, "sd", 2) || 269 !msgYesNo("This typically makes sense only for ESDI, IDE or MFM drives.\n" 270 "Are you sure you want to do this on a SCSI disk?")) { 271 if (chunk_info[current_chunk]->flags & CHUNK_BAD144) 272 chunk_info[current_chunk]->flags &= ~CHUNK_BAD144; 273 else 274 chunk_info[current_chunk]->flags |= CHUNK_BAD144; 275 } 276 clear(); 277 break; 278 279 case 'C': 280 if (chunk_info[current_chunk]->type != unused) 281 msg = "Partition in use, delete it first or move to an unused one."; 282 else { 283 char *val, tmp[20], *cp; 284 int size, subtype; 285 chunk_e partitiontype; 286 287 snprintf(tmp, 20, "%d", chunk_info[current_chunk]->size); 288 val = msgGetInput(tmp, "Please specify the size for new FreeBSD partition in blocks\n" 289 "or append a trailing `M' for megabytes (e.g. 20M)."); 290 if (val && (size = strtol(val, &cp, 0)) > 0) { 291 if (*cp && toupper(*cp) == 'M') 292 size *= ONE_MEG; 293 strcpy(tmp, "165"); 294 val = msgGetInput(tmp, "Enter type of partition to create:\n\n" 295 "Pressing Enter will choose the default, a native FreeBSD\n" 296 "partition (type 165). You can choose other types, 6 for a\n" 297 "DOS partition or 131 for a Linux partition, for example.\n\n" 298 "Note: If you choose a non-FreeBSD partition type, it will not\n" 299 "be formatted or otherwise prepared, it will simply reserve space\n" 300 "for you to use another tool, such as DOS FORMAT, to later format\n" 301 "and use the partition."); 302 if (val && (subtype = strtol(val, NULL, 0)) > 0) { 303 if (subtype==165) 304 partitiontype=freebsd; 305 else if (subtype==6) 306 partitiontype=fat; 307 else 308 partitiontype=unknown; 309 Create_Chunk(d, chunk_info[current_chunk]->offset, size, partitiontype, subtype, 310 (chunk_info[current_chunk]->flags & CHUNK_ALIGN)); 311 variable_set2(DISK_PARTITIONED, "yes"); 312 } 313 } 314 clear(); 315 } 316 break; 317 318 case KEY_DC: 319 case 'D': 320 if (chunk_info[current_chunk]->type == unused) 321 msg = "Partition is already unused!"; 322 else { 323 Delete_Chunk(d, chunk_info[current_chunk]); 324 variable_set2(DISK_PARTITIONED, "yes"); 325 } 326 break; 327 328 case 'G': { 329 char *val, geometry[80]; 330 331 snprintf(geometry, 80, "%lu/%lu/%lu", d->bios_cyl, d->bios_hd, d->bios_sect); 332 val = msgGetInput(geometry, "Please specify the new geometry in cyl/hd/sect format.\n" 333 "Don't forget to use the two slash (/) separator characters!\n" 334 "It's not possible to parse the field without them."); 335 if (val) { 336 d->bios_cyl = strtol(val, &val, 0); 337 d->bios_hd = strtol(val + 1, &val, 0); 338 d->bios_sect = strtol(val + 1, 0, 0); 339 } 340 clear(); 341 } 342 break; 343 344 case 'S': 345 /* Set Bootable */ 346 chunk_info[current_chunk]->flags |= CHUNK_ACTIVE; 347 break; 348 349 case 'U': 350 if (msgYesNo("Are you SURE you want to Undo everything?")) { 351 clear(); 352 break; 353 } 354 d = Open_Disk(d->name); 355 if (!d) { 356 msgConfirm("Can't reopen disk %s! Internal state is probably corrupted", d->name); 357 clear(); 358 break; 359 } 360 Free_Disk(dev->private); 361 dev->private = d; 362 variable_unset(DISK_PARTITIONED); 363 variable_unset(DISK_LABELLED); 364 clear(); 365 break; 366 367 case 'W': 368 if (!msgYesNo("WARNING: This should only be used for modifying an\n" 369 "EXISTING installation - DO NOT USE this option if you\n" 370 "are installing FreeBSD for the first time! This is not\n" 371 "an option for use during the standard install.\n\n" 372 "Are you absolutely sure you want to do this now?")) { 373 374 variable_set2(DISK_PARTITIONED, "yes"); 375 376 /* Don't trash the MBR if the first (and therefore only) chunk is marked for a truly dedicated 377 * disk (i.e., the disklabel starts at sector 0), even in cases where the user has requested 378 * booteasy or a "standard" MBR -- both would be fatal in this case. 379 */ 380 if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL 381 && (mbrContents = getBootMgr(d->name)) != NULL) 382 Set_Boot_Mgr(d, mbrContents); 383 384 if (DITEM_STATUS(diskPartitionWrite(NULL)) != DITEM_SUCCESS) 385 msgConfirm("Disk partition write returned an error status!"); 386 else 387 msgConfirm("Wrote FDISK partition information out successfully."); 388 } 389 clear(); 390 break; 391 392 case '|': 393 if (!msgYesNo("Are you SURE you want to go into Wizard mode?\n" 394 "No seat belts whatsoever are provided!")) { 395 clear(); 396 refresh(); 397 slice_wizard(d); 398 variable_set2(DISK_PARTITIONED, "yes"); 399 } 400 else 401 msg = "Wise choice!"; 402 clear(); 403 break; 404 405 case 'Q': 406 chunking = FALSE; 407 /* Don't trash the MBR if the first (and therefore only) chunk is marked for a truly dedicated 408 * disk (i.e., the disklabel starts at sector 0), even in cases where the user has requested 409 * booteasy or a "standard" MBR -- both would be fatal in this case. 410 */ 411 if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL 412 && (mbrContents = getBootMgr(d->name)) != NULL) 413 Set_Boot_Mgr(d, mbrContents); 414 break; 415 416 default: 417 beep(); 418 msg = "Type F1 or ? for help"; 419 break; 420 } 421 } 422 p = CheckRules(d); 423 if (p) { 424 char buf[FILENAME_MAX]; 425 426 dialog_clear_norefresh(); 427 use_helpline("Press F1 to read more about disk partitioning."); 428 use_helpfile(systemHelpFile("partition", buf)); 429 dialog_mesgbox("Disk partitioning warning:", p, -1, -1); 430 free(p); 431 } 432 restorescr(w); 433} 434 435static int 436partitionHook(dialogMenuItem *selected) 437{ 438 Device **devs = NULL; 439 440 devs = deviceFind(selected->prompt, DEVICE_TYPE_DISK); 441 if (!devs) { 442 msgConfirm("Unable to find disk %s!", selected->prompt); 443 return DITEM_FAILURE; 444 } 445 /* Toggle enabled status? */ 446 if (!devs[0]->enabled) { 447 devs[0]->enabled = TRUE; 448 diskPartition(devs[0], (Disk *)devs[0]->private); 449 } 450 else 451 devs[0]->enabled = FALSE; 452 return DITEM_SUCCESS | DITEM_REDRAW; 453} 454 455static int 456partitionCheck(dialogMenuItem *selected) 457{ 458 Device **devs = NULL; 459 460 devs = deviceFind(selected->prompt, DEVICE_TYPE_DISK); 461 if (!devs || devs[0]->enabled == FALSE) 462 return FALSE; 463 return TRUE; 464} 465 466int 467diskPartitionEditor(dialogMenuItem *self) 468{ 469 DMenu *menu; 470 Device **devs; 471 int i, cnt; 472 char *cp; 473 474 cp = variable_get(VAR_DISK); 475 devs = deviceFind(cp, DEVICE_TYPE_DISK); 476 cnt = deviceCount(devs); 477 if (!cnt) { 478 msgConfirm("No disks found! Please verify that your disk controller is being\n" 479 "properly probed at boot time. See the Hardware Guide on the\n" 480 "Documentation menu for clues on diagnosing this type of problem."); 481 i = DITEM_FAILURE; 482 } 483 else if (cnt == 1) { 484 devs[0]->enabled = TRUE; 485 diskPartition(devs[0], (Disk *)devs[0]->private); 486 i = DITEM_SUCCESS; 487 } 488 else { 489 menu = deviceCreateMenu(&MenuDiskDevices, DEVICE_TYPE_DISK, partitionHook, partitionCheck); 490 if (!menu) { 491 msgConfirm("No devices suitable for installation found!\n\n" 492 "Please verify that your disk controller (and attached drives)\n" 493 "were detected properly. This can be done by pressing the\n" 494 "[Scroll Lock] key and using the Arrow keys to move back to\n" 495 "the boot messages. Press [Scroll Lock] again to return."); 496 i = DITEM_FAILURE; 497 } 498 else { 499 i = dmenuOpenSimple(menu, FALSE) ? DITEM_SUCCESS : DITEM_FAILURE; 500 free(menu); 501 } 502 i = i | DITEM_RECREATE; 503 } 504 return i; 505} 506 507int 508diskPartitionWrite(dialogMenuItem *self) 509{ 510 Device **devs; 511 char *cp; 512 int i; 513 514 if ((cp = variable_get(DISK_PARTITIONED)) && strcmp(cp, "yes")) 515 return DITEM_SUCCESS; 516 else if (!cp) { 517 msgConfirm("You must partition the disk(s) before this option can be used."); 518 return DITEM_FAILURE; 519 } 520 521 devs = deviceFind(NULL, DEVICE_TYPE_DISK); 522 if (!devs) { 523 msgConfirm("Unable to find any disks to write to??"); 524 return DITEM_FAILURE; 525 } 526 if (isDebug()) 527 msgDebug("diskPartitionWrite: Examining %d devices\n", deviceCount(devs)); 528 529 for (i = 0; devs[i]; i++) { 530 Chunk *c1; 531 Disk *d = (Disk *)devs[i]->private; 532 533 if (!devs[i]->enabled) 534 continue; 535 536 Set_Boot_Blocks(d, boot1, boot2); 537 msgNotify("Writing partition information to drive %s", d->name); 538 if (!Fake && Write_Disk(d)) { 539 msgConfirm("ERROR: Unable to write data to disk %s!", d->name); 540 return DITEM_FAILURE; 541 } 542 /* Now scan for bad blocks, if necessary */ 543 for (c1 = d->chunks->part; c1; c1 = c1->next) { 544 if (c1->flags & CHUNK_BAD144) { 545 int ret; 546 547 msgNotify("Running bad block scan on partition %s", c1->name); 548 if (!Fake) { 549 ret = vsystem("bad144 -v /dev/r%s 1234", c1->name); 550 if (ret) 551 msgConfirm("Bad144 init on %s returned status of %d!", c1->name, ret); 552 ret = vsystem("bad144 -v -s /dev/r%s", c1->name); 553 if (ret) 554 msgConfirm("Bad144 scan on %s returned status of %d!", c1->name, ret); 555 } 556 } 557 } 558 } 559 /* Now it's not "yes", but "written" */ 560 variable_set2(DISK_PARTITIONED, "written"); 561 return DITEM_SUCCESS; 562} 563