md.c revision 1.2.2.2
1 1.2.2.2 tls /* $NetBSD: md.c,v 1.2.2.2 2014/08/10 07:00:28 tls Exp $ */ 2 1.2.2.2 tls 3 1.2.2.2 tls /* 4 1.2.2.2 tls * Copyright 1997 Piermont Information Systems Inc. 5 1.2.2.2 tls * All rights reserved. 6 1.2.2.2 tls * 7 1.2.2.2 tls * Based on code written by Philip A. Nelson for Piermont Information 8 1.2.2.2 tls * Systems Inc. 9 1.2.2.2 tls * 10 1.2.2.2 tls * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 tls * modification, are permitted provided that the following conditions 12 1.2.2.2 tls * are met: 13 1.2.2.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 tls * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 tls * documentation and/or other materials provided with the distribution. 18 1.2.2.2 tls * 3. The name of Piermont Information Systems Inc. may not be used to endorse 19 1.2.2.2 tls * or promote products derived from this software without specific prior 20 1.2.2.2 tls * written permission. 21 1.2.2.2 tls * 22 1.2.2.2 tls * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS'' 23 1.2.2.2 tls * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 1.2.2.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 1.2.2.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE 26 1.2.2.2 tls * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 1.2.2.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 1.2.2.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 1.2.2.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 1.2.2.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 1.2.2.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 1.2.2.2 tls * THE POSSIBILITY OF SUCH DAMAGE. 33 1.2.2.2 tls */ 34 1.2.2.2 tls 35 1.2.2.2 tls /* md.c -- prep machine specific routines */ 36 1.2.2.2 tls 37 1.2.2.2 tls #include <sys/param.h> 38 1.2.2.2 tls #include <sys/sysctl.h> 39 1.2.2.2 tls #include <stdio.h> 40 1.2.2.2 tls #include <util.h> 41 1.2.2.2 tls #include <machine/cpu.h> 42 1.2.2.2 tls 43 1.2.2.2 tls #include "defs.h" 44 1.2.2.2 tls #include "md.h" 45 1.2.2.2 tls #include "msg_defs.h" 46 1.2.2.2 tls #include "menu_defs.h" 47 1.2.2.2 tls #include "endian.h" 48 1.2.2.2 tls 49 1.2.2.2 tls int prep_nobootfix = 0, prep_rawdevfix = 0, prep_bootpart = PART_BOOT; 50 1.2.2.2 tls 51 1.2.2.2 tls void 52 1.2.2.2 tls md_init(void) 53 1.2.2.2 tls { 54 1.2.2.2 tls } 55 1.2.2.2 tls 56 1.2.2.2 tls void 57 1.2.2.2 tls md_init_set_status(int flags) 58 1.2.2.2 tls { 59 1.2.2.2 tls (void)flags; 60 1.2.2.2 tls } 61 1.2.2.2 tls 62 1.2.2.2 tls int 63 1.2.2.2 tls md_get_info(void) 64 1.2.2.2 tls { 65 1.2.2.2 tls return set_bios_geom_with_mbr_guess(); 66 1.2.2.2 tls } 67 1.2.2.2 tls 68 1.2.2.2 tls /* 69 1.2.2.2 tls * md back-end code for menu-driven BSD disklabel editor. 70 1.2.2.2 tls */ 71 1.2.2.2 tls int 72 1.2.2.2 tls md_make_bsd_partitions(void) 73 1.2.2.2 tls { 74 1.2.2.2 tls return make_bsd_partitions(); 75 1.2.2.2 tls } 76 1.2.2.2 tls 77 1.2.2.2 tls /* 78 1.2.2.2 tls * any additional partition validation 79 1.2.2.2 tls */ 80 1.2.2.2 tls int 81 1.2.2.2 tls md_check_partitions(void) 82 1.2.2.2 tls { 83 1.2.2.2 tls int part; 84 1.2.2.2 tls 85 1.2.2.2 tls /* we need to find a boot partition, otherwise we can't write our 86 1.2.2.2 tls * "bootblock". We make the assumption that the user hasn't done 87 1.2.2.2 tls * something stupid, like move it away from the MBR partition. 88 1.2.2.2 tls */ 89 1.2.2.2 tls for (part = PART_A; part < MAXPARTITIONS; part++) 90 1.2.2.2 tls if (pm->bsdlabel[part].pi_fstype == FS_BOOT) { 91 1.2.2.2 tls prep_bootpart = part; 92 1.2.2.2 tls return 1; 93 1.2.2.2 tls } 94 1.2.2.2 tls 95 1.2.2.2 tls msg_display(MSG_prepnobootpart); 96 1.2.2.2 tls process_menu(MENU_ok, NULL); 97 1.2.2.2 tls return 0; 98 1.2.2.2 tls } 99 1.2.2.2 tls 100 1.2.2.2 tls /* 101 1.2.2.2 tls * hook called before writing new disklabel. 102 1.2.2.2 tls */ 103 1.2.2.2 tls int 104 1.2.2.2 tls md_pre_disklabel(void) 105 1.2.2.2 tls { 106 1.2.2.2 tls msg_display(MSG_dofdisk); 107 1.2.2.2 tls 108 1.2.2.2 tls /* write edited MBR onto disk. */ 109 1.2.2.2 tls if (write_mbr(pm->diskdev, &mbr, 1) != 0) { 110 1.2.2.2 tls msg_display(MSG_wmbrfail); 111 1.2.2.2 tls process_menu(MENU_ok, NULL); 112 1.2.2.2 tls return 1; 113 1.2.2.2 tls } 114 1.2.2.2 tls return 0; 115 1.2.2.2 tls } 116 1.2.2.2 tls 117 1.2.2.2 tls /* 118 1.2.2.2 tls * hook called after writing disklabel to new target disk. 119 1.2.2.2 tls */ 120 1.2.2.2 tls int 121 1.2.2.2 tls md_post_disklabel(void) 122 1.2.2.2 tls { 123 1.2.2.2 tls return 0; 124 1.2.2.2 tls } 125 1.2.2.2 tls 126 1.2.2.2 tls /* 127 1.2.2.2 tls * hook called after upgrade() or install() has finished setting 128 1.2.2.2 tls * up the target disk but immediately before the user is given the 129 1.2.2.2 tls * ``disks are now set up'' message. 130 1.2.2.2 tls */ 131 1.2.2.2 tls int 132 1.2.2.2 tls md_post_newfs(void) 133 1.2.2.2 tls { 134 1.2.2.2 tls return 0; 135 1.2.2.2 tls } 136 1.2.2.2 tls 137 1.2.2.2 tls int 138 1.2.2.2 tls md_post_extract(void) 139 1.2.2.2 tls { 140 1.2.2.2 tls char rawdev[100], bootpart[100], bootloader[100]; 141 1.2.2.2 tls 142 1.2.2.2 tls /* if we can't make it bootable, just punt */ 143 1.2.2.2 tls if (prep_nobootfix) 144 1.2.2.2 tls return 0; 145 1.2.2.2 tls 146 1.2.2.2 tls process_menu(MENU_prepconsole, NULL); 147 1.2.2.2 tls if (yesno == 1) 148 1.2.2.2 tls snprintf(bootloader, 100, "/usr/mdec/boot_com0"); 149 1.2.2.2 tls else 150 1.2.2.2 tls snprintf(bootloader, 100, "/usr/mdec/boot"); 151 1.2.2.2 tls 152 1.2.2.2 tls snprintf(rawdev, 100, "/dev/r%s%c", pm->diskdev, 'a' + getrawpartition()); 153 1.2.2.2 tls snprintf(bootpart, 100, "/dev/r%s%c", pm->diskdev, 'a' + prep_bootpart); 154 1.2.2.2 tls if (prep_rawdevfix) 155 1.2.2.2 tls run_program(RUN_DISPLAY|RUN_CHROOT, 156 1.2.2.2 tls "/usr/mdec/mkbootimage -b %s -k /netbsd " 157 1.2.2.2 tls "-r %s /.bootimage", bootloader, rawdev); 158 1.2.2.2 tls else 159 1.2.2.2 tls run_program(RUN_DISPLAY|RUN_CHROOT, 160 1.2.2.2 tls "/usr/mdec/mkbootimage -s -b %s -k /netbsd /.bootimage", 161 1.2.2.2 tls bootloader); 162 1.2.2.2 tls run_program(RUN_DISPLAY|RUN_CHROOT, "/bin/dd if=/.bootimage of=%s " 163 1.2.2.2 tls "bs=512 conv=sync", bootpart); 164 1.2.2.2 tls 165 1.2.2.2 tls return 0; 166 1.2.2.2 tls } 167 1.2.2.2 tls 168 1.2.2.2 tls void 169 1.2.2.2 tls md_cleanup_install(void) 170 1.2.2.2 tls { 171 1.2.2.2 tls #ifndef DEBUG 172 1.2.2.2 tls enable_rc_conf(); 173 1.2.2.2 tls #endif 174 1.2.2.2 tls run_program(0, "rm -f %s", target_expand("/.bootimage")); 175 1.2.2.2 tls } 176 1.2.2.2 tls 177 1.2.2.2 tls int 178 1.2.2.2 tls md_pre_update(void) 179 1.2.2.2 tls { 180 1.2.2.2 tls struct mbr_partition *part; 181 1.2.2.2 tls mbr_info_t *ext; 182 1.2.2.2 tls int i; 183 1.2.2.2 tls 184 1.2.2.2 tls read_mbr(pm->diskdev, &mbr); 185 1.2.2.2 tls /* do a sanity check of the partition table */ 186 1.2.2.2 tls for (ext = &mbr; ext; ext = ext->extended) { 187 1.2.2.2 tls part = ext->mbr.mbr_parts; 188 1.2.2.2 tls for (i = 0; i < MBR_PART_COUNT; part++, i++) { 189 1.2.2.2 tls if (part->mbrp_type != MBR_PTYPE_PREP) 190 1.2.2.2 tls continue; 191 1.2.2.2 tls if (part->mbrp_size < (MIN_PREP_BOOT/512)) { 192 1.2.2.2 tls msg_display(MSG_preptoosmall); 193 1.2.2.2 tls msg_display_add(MSG_prepnobootpart, 0); 194 1.2.2.2 tls process_menu(MENU_yesno, NULL); 195 1.2.2.2 tls if (!yesno) 196 1.2.2.2 tls return 0; 197 1.2.2.2 tls prep_nobootfix = 1; 198 1.2.2.2 tls } 199 1.2.2.2 tls if (part->mbrp_start == 0) 200 1.2.2.2 tls prep_rawdevfix = 1; 201 1.2.2.2 tls } 202 1.2.2.2 tls } 203 1.2.2.2 tls if (md_check_partitions() == 0) 204 1.2.2.2 tls prep_nobootfix = 1; 205 1.2.2.2 tls return 1; 206 1.2.2.2 tls } 207 1.2.2.2 tls 208 1.2.2.2 tls /* Upgrade support */ 209 1.2.2.2 tls int 210 1.2.2.2 tls md_update(void) 211 1.2.2.2 tls { 212 1.2.2.2 tls md_post_newfs(); 213 1.2.2.2 tls return 1; 214 1.2.2.2 tls } 215 1.2.2.2 tls 216 1.2.2.2 tls int 217 1.2.2.2 tls md_check_mbr(mbr_info_t *mbri) 218 1.2.2.2 tls { 219 1.2.2.2 tls mbr_info_t *ext; 220 1.2.2.2 tls struct mbr_partition *part; 221 1.2.2.2 tls int i; 222 1.2.2.2 tls 223 1.2.2.2 tls for (ext = mbri; ext; ext = ext->extended) { 224 1.2.2.2 tls part = ext->mbr.mbr_parts; 225 1.2.2.2 tls for (i = 0; i < MBR_PART_COUNT; part++, i++) { 226 1.2.2.2 tls if (part->mbrp_type != MBR_PTYPE_PREP) 227 1.2.2.2 tls continue; 228 1.2.2.2 tls pm->bootstart = part->mbrp_start; 229 1.2.2.2 tls pm->bootsize = part->mbrp_size; 230 1.2.2.2 tls break; 231 1.2.2.2 tls } 232 1.2.2.2 tls } 233 1.2.2.2 tls if (pm->bootsize < (MIN_PREP_BOOT/512)) { 234 1.2.2.2 tls msg_display(MSG_preptoosmall); 235 1.2.2.2 tls msg_display_add(MSG_reeditpart, 0); 236 1.2.2.2 tls process_menu(MENU_yesno, NULL); 237 1.2.2.2 tls if (!yesno) 238 1.2.2.2 tls return 0; 239 1.2.2.2 tls return 1; 240 1.2.2.2 tls } 241 1.2.2.2 tls if (pm->bootstart == 0 || pm->bootsize == 0) { 242 1.2.2.2 tls msg_display(MSG_nopreppart); 243 1.2.2.2 tls msg_display_add(MSG_reeditpart, 0); 244 1.2.2.2 tls process_menu(MENU_yesno, NULL); 245 1.2.2.2 tls if (!yesno) 246 1.2.2.2 tls return 0; 247 1.2.2.2 tls return 1; 248 1.2.2.2 tls } 249 1.2.2.2 tls return 2; 250 1.2.2.2 tls } 251 1.2.2.2 tls 252 1.2.2.2 tls int 253 1.2.2.2 tls md_mbr_use_wholedisk(mbr_info_t *mbri) 254 1.2.2.2 tls { 255 1.2.2.2 tls struct mbr_sector *mbrs = &mbri->mbr; 256 1.2.2.2 tls mbr_info_t *ext; 257 1.2.2.2 tls struct mbr_partition *part; 258 1.2.2.2 tls 259 1.2.2.2 tls part = &mbrs->mbr_parts[0]; 260 1.2.2.2 tls /* Set the partition information for full disk usage. */ 261 1.2.2.2 tls while ((ext = mbri->extended)) { 262 1.2.2.2 tls mbri->extended = ext->extended; 263 1.2.2.2 tls free(ext); 264 1.2.2.2 tls } 265 1.2.2.2 tls memset(part, 0, MBR_PART_COUNT * sizeof *part); 266 1.2.2.2 tls #ifdef BOOTSEL 267 1.2.2.2 tls memset(&mbri->mbrb, 0, sizeof mbri->mbrb); 268 1.2.2.2 tls #endif 269 1.2.2.2 tls part[0].mbrp_type = MBR_PTYPE_PREP; 270 1.2.2.2 tls part[0].mbrp_size = PREP_BOOT_SIZE/512; 271 1.2.2.2 tls part[0].mbrp_start = bsec; 272 1.2.2.2 tls part[0].mbrp_flag = MBR_PFLAG_ACTIVE; 273 1.2.2.2 tls 274 1.2.2.2 tls part[1].mbrp_type = MBR_PTYPE_NETBSD; 275 1.2.2.2 tls part[1].mbrp_size = pm->dlsize - (bsec + PREP_BOOT_SIZE/512); 276 1.2.2.2 tls part[1].mbrp_start = bsec + PREP_BOOT_SIZE/512; 277 1.2.2.2 tls part[1].mbrp_flag = 0; 278 1.2.2.2 tls 279 1.2.2.2 tls pm->ptstart = part[1].mbrp_start; 280 1.2.2.2 tls pm->ptsize = part[1].mbrp_size; 281 1.2.2.2 tls pm->bootstart = part[0].mbrp_start; 282 1.2.2.2 tls pm->bootsize = part[0].mbrp_size; 283 1.2.2.2 tls return 1; 284 1.2.2.2 tls } 285 1.2.2.2 tls 286 1.2.2.2 tls 287 1.2.2.2 tls int 288 1.2.2.2 tls md_pre_mount() 289 1.2.2.2 tls { 290 1.2.2.2 tls return 0; 291 1.2.2.2 tls } 292
Indexes created Wed Oct 01 15:09:59 GMT 2025