disks.c revision 19431
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 1.70 1996/10/09 09:53:27 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 if (current_chunk >= i) 67 current_chunk = i - 1; 68} 69 70static int Total; 71 72static void 73print_chunks(Disk *d) 74{ 75 int row; 76 int i; 77 78 for (i = Total = 0; chunk_info[i]; i++) 79 Total += chunk_info[i]->size; 80 if (d->bios_hd <= 1 && d->bios_sect <= 1) { 81 All_FreeBSD(d, TRUE); 82 d->bios_hd = d->bios_sect = d->bios_cyl = 1; 83 } 84 else if (d->bios_cyl > 65536 || d->bios_hd > 256 || d->bios_sect >= 64) { 85 dialog_clear_norefresh(); 86 msgConfirm("WARNING: A geometry of %d/%d/%d for %s is incorrect. Using\n" 87 "a default geometry of 64 heads and 32 sectors. If this geometry\n" 88 "is incorrect or you are unsure as to whether or not it's correct,\n" 89 "please consult the Hardware Guide in the Documentation submenu\n" 90 "or use the (G)eometry command to change it now.", d->bios_cyl, d->bios_hd, d->bios_sect, d->name); 91 d->bios_hd = 64; 92 d->bios_sect = 32; 93 d->bios_cyl = Total / ONE_MEG; 94 } 95 attrset(A_NORMAL); 96 mvaddstr(0, 0, "Disk name:\t"); 97 clrtobot(); 98 attrset(A_REVERSE); addstr(d->name); attrset(A_NORMAL); 99 attrset(A_REVERSE); mvaddstr(0, 55, "FDISK Partition Editor"); attrset(A_NORMAL); 100 mvprintw(1, 0, 101 "DISK Geometry:\t%lu cyls/%lu heads/%lu sectors", 102 d->bios_cyl, d->bios_hd, d->bios_sect); 103 mvprintw(3, 1, "%10s %10s %10s %8s %8s %8s %8s %8s", 104 "Offset", "Size", "End", "Name", "PType", "Desc", 105 "Subtype", "Flags"); 106 for (i = 0, row = CHUNK_START_ROW; chunk_info[i]; i++, row++) { 107 if (i == current_chunk) 108 attrset(ATTR_SELECTED); 109 mvprintw(row, 2, "%10ld %10lu %10lu %8s %8d %8s %8d\t%-6s", 110 chunk_info[i]->offset, chunk_info[i]->size, 111 chunk_info[i]->end, chunk_info[i]->name, 112 chunk_info[i]->type, chunk_n[chunk_info[i]->type], 113 chunk_info[i]->subtype, ShowChunkFlags(chunk_info[i])); 114 if (i == current_chunk) 115 attrset(A_NORMAL); 116 } 117} 118 119static void 120print_command_summary() 121{ 122 mvprintw(14, 0, "The following commands are supported (in upper or lower case):"); 123 mvprintw(16, 0, "A = Use Entire Disk B = Bad Block Scan C = Create Partition"); 124 mvprintw(17, 0, "D = Delete Partition G = Set Drive Geometry S = Set Bootable"); 125 mvprintw(18, 0, "U = Undo All Changes Q = Finish"); 126 if (!RunningAsInit) 127 mvprintw(18, 46, "W = Write Changes"); 128 mvprintw(21, 0, "Use F1 or ? to get more help, arrow keys to select."); 129 move(0, 0); 130} 131 132static u_char * 133getBootMgr(char *dname) 134{ 135 extern u_char mbr[], bteasy17[]; 136 char str[80]; 137 char *cp; 138 int i = 0; 139 140 cp = variable_get(VAR_BOOTMGR); 141 if (!cp) { 142 /* Figure out what kind of MBR the user wants */ 143 sprintf(str, "Install Boot Manager for drive %s?", dname); 144 MenuMBRType.title = str; 145 i = dmenuOpenSimple(&MenuMBRType, FALSE); 146 } 147 else { 148 if (!strncmp(cp, "boot", 4)) 149 BootMgr = 0; 150 else if (!strcmp(cp, "standard")) 151 BootMgr = 1; 152 else 153 BootMgr = 2; 154 } 155 if (cp || i) { 156 switch (BootMgr) { 157 case 0: 158 return bteasy17; 159 160 case 1: 161 return mbr; 162 163 case 2: 164 default: 165 break; 166 } 167 } 168 return NULL; 169} 170 171void 172diskPartition(Device *dev, Disk *d) 173{ 174 char *cp, *p; 175 int rv, key = 0; 176 Boolean chunking; 177 char *msg = NULL; 178 u_char *mbrContents; 179 WINDOW *w = savescr(); 180 181 chunking = TRUE; 182 keypad(stdscr, TRUE); 183 184 /* Flush both the dialog and curses library views of the screen 185 since we don't always know who called us */ 186 dialog_clear_norefresh(), clear(); 187 188 /* Set up the chunk array */ 189 record_chunks(d); 190 191 while (chunking) { 192 char *val, geometry[80]; 193 194 /* Now print our overall state */ 195 print_chunks(d); 196 print_command_summary(); 197 if (msg) { 198 attrset(title_attr); mvprintw(23, 0, msg); attrset(A_NORMAL); 199 beep(); 200 msg = NULL; 201 } 202 else { 203 move(23, 0); 204 clrtoeol(); 205 } 206 207 /* Get command character */ 208 key = getch(); 209 switch (toupper(key)) { 210 case '\014': /* ^L (redraw) */ 211 clear(); 212 msg = NULL; 213 break; 214 215 case KEY_UP: 216 case '-': 217 if (current_chunk != 0) 218 --current_chunk; 219 break; 220 221 case KEY_DOWN: 222 case '+': 223 case '\r': 224 case '\n': 225 if (chunk_info[current_chunk + 1]) 226 ++current_chunk; 227 break; 228 229 case KEY_HOME: 230 current_chunk = 0; 231 break; 232 233 case KEY_END: 234 while (chunk_info[current_chunk + 1]) 235 ++current_chunk; 236 break; 237 238 case KEY_F(1): 239 case '?': 240 systemDisplayHelp("slice"); 241 clear(); 242 break; 243 244 case 'A': 245 rv = msgYesNo("Do you want to do this with a true partition entry\n" 246 "so as to remain cooperative with any future possible\n" 247 "operating systems on the drive(s)?"); 248 if (rv != 0) { 249 rv = !msgYesNo("This is dangerous in that it will make the drive totally\n" 250 "uncooperative with other potential operating systems on the\n" 251 "same disk. It will lead instead to a totally dedicated disk,\n" 252 "starting at the very first sector, bypassing all BIOS geometry\n" 253 "considerations. This precludes the existance of any boot\n" 254 "manager or other stuff in sector 0, since the BSD bootstrap\n" 255 "will live there.\n" 256 "You will run into serious trouble with ST-506 and ESDI drives\n" 257 "and possibly some IDE drives (e.g. drives running under the\n" 258 "control of sort of disk manager). SCSI drives are considerably\n" 259 "less at risk.\n\n" 260 "Do you insist on dedicating the entire disk this way?"); 261 } 262 if (rv == -1) 263 rv = 0; 264 All_FreeBSD(d, rv); 265 if (rv) 266 d->bios_hd = d->bios_sect = d->bios_cyl = 1; 267 variable_set2(DISK_PARTITIONED, "yes"); 268 record_chunks(d); 269 clear(); 270 break; 271 272 case 'B': 273 if (chunk_info[current_chunk]->type != freebsd) 274 msg = "Can only scan for bad blocks in FreeBSD partition."; 275 else if (strncmp(d->name, "sd", 2) || 276 !msgYesNo("This typically makes sense only for ESDI, IDE or MFM drives.\n" 277 "Are you sure you want to do this on a SCSI disk?")) { 278 if (chunk_info[current_chunk]->flags & CHUNK_BAD144) 279 chunk_info[current_chunk]->flags &= ~CHUNK_BAD144; 280 else 281 chunk_info[current_chunk]->flags |= CHUNK_BAD144; 282 } 283 clear(); 284 break; 285 286 case 'C': 287 if (chunk_info[current_chunk]->type != unused) 288 msg = "Partition in use, delete it first or move to an unused one."; 289 else { 290 char *val, tmp[20], *cp; 291 int size, subtype; 292 chunk_e partitiontype; 293 294 snprintf(tmp, 20, "%d", chunk_info[current_chunk]->size); 295 val = msgGetInput(tmp, "Please specify the size for new FreeBSD partition in blocks\n" 296 "or append a trailing `M' for megabytes (e.g. 20M)."); 297 if (val && (size = strtol(val, &cp, 0)) > 0) { 298 if (*cp && toupper(*cp) == 'M') 299 size *= ONE_MEG; 300 strcpy(tmp, "165"); 301 val = msgGetInput(tmp, "Enter type of partition to create:\n\n" 302 "Pressing Enter will choose the default, a native FreeBSD\n" 303 "partition (type 165). You can choose other types, 6 for a\n" 304 "DOS partition or 131 for a Linux partition, for example.\n\n" 305 "Note: If you choose a non-FreeBSD partition type, it will not\n" 306 "be formatted or otherwise prepared, it will simply reserve space\n" 307 "for you to use another tool, such as DOS FORMAT, to later format\n" 308 "and use the partition."); 309 if (val && (subtype = strtol(val, NULL, 0)) > 0) { 310 if (subtype==165) 311 partitiontype=freebsd; 312 else if (subtype==6) 313 partitiontype=fat; 314 else 315 partitiontype=unknown; 316 Create_Chunk(d, chunk_info[current_chunk]->offset, size, partitiontype, subtype, 317 (chunk_info[current_chunk]->flags & CHUNK_ALIGN)); 318 variable_set2(DISK_PARTITIONED, "yes"); 319 record_chunks(d); 320 } 321 } 322 clear(); 323 } 324 break; 325 326 case KEY_DC: 327 case 'D': 328 if (chunk_info[current_chunk]->type == unused) 329 msg = "Partition is already unused!"; 330 else { 331 Delete_Chunk(d, chunk_info[current_chunk]); 332 variable_set2(DISK_PARTITIONED, "yes"); 333 record_chunks(d); 334 } 335 break; 336 337 case 'G': 338 snprintf(geometry, 80, "%lu/%lu/%lu", d->bios_cyl, d->bios_hd, d->bios_sect); 339 val = msgGetInput(geometry, "Please specify the new geometry in cyl/hd/sect format.\n" 340 "Don't forget to use the two slash (/) separator characters!\n" 341 "It's not possible to parse the field without them."); 342 if (val) { 343 d->bios_cyl = strtol(val, &val, 0); 344 d->bios_hd = strtol(val + 1, &val, 0); 345 d->bios_sect = strtol(val + 1, 0, 0); 346 } 347 clear(); 348 break; 349 350 case 'S': 351 /* Set Bootable */ 352 chunk_info[current_chunk]->flags |= CHUNK_ACTIVE; 353 break; 354 355 case 'U': 356 if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) { 357 msgConfirm("You've already written this information out - you\n" 358 "can't undo it."); 359 } 360 else if (!msgYesNo("Are you SURE you want to Undo everything?")) { 361 d = Open_Disk(d->name); 362 if (!d) { 363 msgConfirm("Can't reopen disk %s! Internal state is probably corrupted", d->name); 364 clear(); 365 break; 366 } 367 Free_Disk(dev->private); 368 dev->private = d; 369 variable_unset(DISK_PARTITIONED); 370 variable_unset(DISK_LABELLED); 371 record_chunks(d); 372 } 373 clear(); 374 break; 375 376 case 'W': 377 if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) { 378 msgConfirm("You've already written this information out - if\n" 379 "you wish to overwrite it, you'll have to restart."); 380 } 381 else if (!msgYesNo("WARNING: This should only be used when modifying an EXISTING\n" 382 "installation. If you are installing FreeBSD for the first time\n" 383 "then you should simply type Q when you're finished here and your\n" 384 "changes will be committed in one batch automatically at the end of\n" 385 "these questions.\n\n" 386 "Are you absolutely sure you want to do this now?")) { 387 variable_set2(DISK_PARTITIONED, "yes"); 388 389 /* Don't trash the MBR if the first (and therefore only) chunk is marked for a truly dedicated 390 * disk (i.e., the disklabel starts at sector 0), even in cases where the user has requested 391 * booteasy or a "standard" MBR -- both would be fatal in this case. 392 */ 393 if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL 394 && (mbrContents = getBootMgr(d->name)) != NULL) 395 Set_Boot_Mgr(d, mbrContents); 396 397 if (DITEM_STATUS(diskPartitionWrite(NULL)) != DITEM_SUCCESS) 398 msgConfirm("Disk partition write returned an error status!"); 399 else 400 msgConfirm("Wrote FDISK partition information out successfully."); 401 } 402 clear(); 403 break; 404 405 case '|': 406 if (!msgYesNo("Are you SURE you want to go into Wizard mode?\n" 407 "No seat belts whatsoever are provided!")) { 408 clear(); 409 refresh(); 410 slice_wizard(d); 411 variable_set2(DISK_PARTITIONED, "yes"); 412 record_chunks(d); 413 } 414 else 415 msg = "Wise choice!"; 416 clear(); 417 break; 418 419 case 'Q': 420 chunking = FALSE; 421 /* Don't trash the MBR if the first (and therefore only) chunk is marked for a truly dedicated 422 * disk (i.e., the disklabel starts at sector 0), even in cases where the user has requested 423 * booteasy or a "standard" MBR -- both would be fatal in this case. 424 */ 425 if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL 426 && (mbrContents = getBootMgr(d->name)) != NULL) 427 Set_Boot_Mgr(d, mbrContents); 428 break; 429 430 default: 431 beep(); 432 msg = "Type F1 or ? for help"; 433 break; 434 } 435 } 436 p = CheckRules(d); 437 if (p) { 438 char buf[FILENAME_MAX]; 439 440 dialog_clear_norefresh(); 441 use_helpline("Press F1 to read more about disk partitioning."); 442 use_helpfile(systemHelpFile("partition", buf)); 443 dialog_mesgbox("Disk partitioning warning:", p, -1, -1); 444 free(p); 445 } 446 restorescr(w); 447} 448 449static int 450partitionHook(dialogMenuItem *selected) 451{ 452 Device **devs = NULL; 453 454 devs = deviceFind(selected->prompt, DEVICE_TYPE_DISK); 455 if (!devs) { 456 msgConfirm("Unable to find disk %s!", selected->prompt); 457 return DITEM_FAILURE; 458 } 459 /* Toggle enabled status? */ 460 if (!devs[0]->enabled) { 461 devs[0]->enabled = TRUE; 462 diskPartition(devs[0], (Disk *)devs[0]->private); 463 } 464 else 465 devs[0]->enabled = FALSE; 466 return DITEM_SUCCESS | DITEM_REDRAW; 467} 468 469static int 470partitionCheck(dialogMenuItem *selected) 471{ 472 Device **devs = NULL; 473 474 devs = deviceFind(selected->prompt, DEVICE_TYPE_DISK); 475 if (!devs || devs[0]->enabled == FALSE) 476 return FALSE; 477 return TRUE; 478} 479 480int 481diskPartitionEditor(dialogMenuItem *self) 482{ 483 DMenu *menu; 484 Device **devs; 485 int i, cnt; 486 char *cp; 487 488 cp = variable_get(VAR_DISK); 489 devs = deviceFind(cp, DEVICE_TYPE_DISK); 490 cnt = deviceCount(devs); 491 if (!cnt) { 492 msgConfirm("No disks found! Please verify that your disk controller is being\n" 493 "properly probed at boot time. See the Hardware Guide on the\n" 494 "Documentation menu for clues on diagnosing this type of problem."); 495 i = DITEM_FAILURE; 496 } 497 else if (cnt == 1) { 498 devs[0]->enabled = TRUE; 499 diskPartition(devs[0], (Disk *)devs[0]->private); 500 i = DITEM_SUCCESS; 501 } 502 else { 503 menu = deviceCreateMenu(&MenuDiskDevices, DEVICE_TYPE_DISK, partitionHook, partitionCheck); 504 if (!menu) { 505 msgConfirm("No devices suitable for installation found!\n\n" 506 "Please verify that your disk controller (and attached drives)\n" 507 "were detected properly. This can be done by pressing the\n" 508 "[Scroll Lock] key and using the Arrow keys to move back to\n" 509 "the boot messages. Press [Scroll Lock] again to return."); 510 i = DITEM_FAILURE; 511 } 512 else { 513 i = dmenuOpenSimple(menu, FALSE) ? DITEM_SUCCESS : DITEM_FAILURE; 514 free(menu); 515 } 516 i = i | DITEM_RECREATE; 517 } 518 return i; 519} 520 521int 522diskPartitionWrite(dialogMenuItem *self) 523{ 524 Device **devs; 525 char *cp; 526 int i; 527 528 if ((cp = variable_get(DISK_PARTITIONED)) && strcmp(cp, "yes")) 529 return DITEM_SUCCESS; 530 else if (!cp) { 531 msgConfirm("You must partition the disk(s) before this option can be used."); 532 return DITEM_FAILURE; 533 } 534 535 devs = deviceFind(NULL, DEVICE_TYPE_DISK); 536 if (!devs) { 537 msgConfirm("Unable to find any disks to write to??"); 538 return DITEM_FAILURE; 539 } 540 if (isDebug()) 541 msgDebug("diskPartitionWrite: Examining %d devices\n", deviceCount(devs)); 542 543 for (i = 0; devs[i]; i++) { 544 Chunk *c1; 545 Disk *d = (Disk *)devs[i]->private; 546 547 if (!devs[i]->enabled) 548 continue; 549 550 Set_Boot_Blocks(d, boot1, boot2); 551 msgNotify("Writing partition information to drive %s", d->name); 552 if (!Fake && Write_Disk(d)) { 553 msgConfirm("ERROR: Unable to write data to disk %s!", d->name); 554 return DITEM_FAILURE; 555 } 556 /* Now scan for bad blocks, if necessary */ 557 for (c1 = d->chunks->part; c1; c1 = c1->next) { 558 if (c1->flags & CHUNK_BAD144) { 559 int ret; 560 561 msgNotify("Running bad block scan on partition %s", c1->name); 562 if (!Fake) { 563 ret = vsystem("bad144 -v /dev/r%s 1234", c1->name); 564 if (ret) 565 msgConfirm("Bad144 init on %s returned status of %d!", c1->name, ret); 566 ret = vsystem("bad144 -v -s /dev/r%s", c1->name); 567 if (ret) 568 msgConfirm("Bad144 scan on %s returned status of %d!", c1->name, ret); 569 } 570 } 571 } 572 } 573 /* Now it's not "yes", but "written" */ 574 variable_set2(DISK_PARTITIONED, "written"); 575 return DITEM_SUCCESS; 576} 577