/* $NetBSD: md.c,v 1.31 2008/10/07 09:58:14 abs Exp $ */ /* * Copyright 1997 Piermont Information Systems Inc. * All rights reserved. * * Written by Philip A. Nelson for Piermont Information Systems Inc. * * 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 for the NetBSD Project by * Piermont Information Systems Inc. * 4. The name of Piermont Information Systems Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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. * */ /* md.c -- Machine specific code for arc */ #include <sys/param.h> #include <sys/sysctl.h> #include <stdio.h> #include <util.h> #include <machine/cpu.h> #include "defs.h" #include "msg_defs.h" #include "menu_defs.h" #include "md.h" /* * ARC BIOS reognizes only FAT, so we have to have a FAT partition * to store our native bootloader. */ static int nobootfs = 0; static int bootpart_fat12 = PART_BOOT_FAT12; int md_get_info(void) { read_mbr(diskdev, &mbr); md_bios_info(diskdev); return edit_mbr(&mbr); } int md_pre_disklabel(void) { msg_display(MSG_dofdisk); /* write edited MBR onto disk. */ if (write_mbr(diskdev, &mbr, 1) != 0) { msg_display(MSG_wmbrfail); process_menu(MENU_ok, NULL); return 1; } return 0; } int md_post_disklabel(void) { if (get_ramsize() <= 32) set_swap(diskdev, bsdlabel); return 0; } int md_post_newfs(void) { if (!nobootfs) { msg_display(msg_string(MSG_copybootloader), diskdev); cp_to_target("/usr/mdec/boot", PART_BOOT_FAT12_PI_MOUNT); } return 0; } int md_copy_filesystem(void) { return 0; } int md_make_bsd_partitions(void) { int i; int part; int maxpart = getmaxpartitions(); int partstart; int part_raw, part_bsd; int ptend; int no_swap = 0; partinfo *p; /* * Initialize global variables that track space used on this disk. * Standard 4.4BSD 8-partition labels always cover whole disk. */ if (ptsize == 0) ptsize = dlsize - ptstart; if (dlsize == 0) dlsize = ptstart + ptsize; partstart = ptstart; ptend = ptstart + ptsize; /* Ask for layout type -- standard or special */ msg_display(MSG_layout, ptsize / (MEG / sectorsize), DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE, DEFROOTSIZE + DEFSWAPSIZE + DEFUSRSIZE + XNEEDMB); process_menu(MENU_layout, NULL); /* Set so we use the 'real' geometry for rounding, input in MB */ current_cylsize = dlcylsize; set_sizemultname_meg(); /* Build standard partitions */ memset(&bsdlabel, 0, sizeof bsdlabel); /* Set initial partition types to unused */ for (part = 0 ; part < maxpart ; ++part) bsdlabel[part].pi_fstype = FS_UNUSED; /* Whole disk partition */ part_raw = getrawpartition(); if (part_raw == -1) part_raw = PART_C; /* for sanity... */ bsdlabel[part_raw].pi_offset = 0; bsdlabel[part_raw].pi_size = dlsize; if (part_raw == PART_D) { /* Probably a system that expects an i386 style mbr */ part_bsd = PART_C; bsdlabel[PART_C].pi_offset = ptstart; bsdlabel[PART_C].pi_size = ptsize; } else { part_bsd = part_raw; } if (bootsize != 0) { bsdlabel[PART_BOOT_FAT12].pi_fstype = FS_MSDOS; bsdlabel[PART_BOOT_FAT12].pi_size = bootsize; bsdlabel[PART_BOOT_FAT12].pi_offset = bootstart; bsdlabel[PART_BOOT_FAT12].pi_flags |= PART_BOOT_FAT12_PI_FLAGS; strlcpy(bsdlabel[PART_BOOT_FAT12].pi_mount, PART_BOOT_FAT12_PI_MOUNT, sizeof bsdlabel[PART_BOOT_FAT12].pi_mount); } #ifdef PART_REST bsdlabel[PART_REST].pi_offset = 0; bsdlabel[PART_REST].pi_size = ptstart; #endif /* * Save any partitions that are outside the area we are * going to use. * In particular this saves details of the other MBR * partitions on a multiboot i386 system. */ for (i = maxpart; i--;) { if (bsdlabel[i].pi_size != 0) /* Don't overwrite special partitions */ continue; p = &oldlabel[i]; if (p->pi_fstype == FS_UNUSED || p->pi_size == 0) continue; if (layoutkind == 4) { if (PI_ISBSDFS(p)) p->pi_flags |= PIF_MOUNT; } else { if (p->pi_offset < ptstart + ptsize && p->pi_offset + p->pi_size > ptstart) /* Not outside area we are allocating */ continue; if (p->pi_fstype == FS_SWAP) no_swap = 1; } bsdlabel[i] = oldlabel[i]; } if (layoutkind == 4) { /* XXX Check we have a sensible layout */ ; } else get_ptn_sizes(partstart, ptend - partstart, no_swap); /* * OK, we have a partition table. Give the user the chance to * edit it and verify it's OK, or abort altogether. */ edit_check: if (edit_and_check_label(bsdlabel, maxpart, part_raw, part_bsd) == 0) { msg_display(MSG_abort); return 0; } if (md_check_partitions() == 0) goto edit_check; /* Disk name */ msg_prompt(MSG_packname, bsddiskname, bsddiskname, sizeof bsddiskname); /* save label to disk for MI code to update. */ (void)savenewlabel(bsdlabel, maxpart); /* Everything looks OK. */ return 1; } int md_check_partitions(void) { int part; /* we need to find a boot partition, otherwise we can't write our * bootloader. We make the assumption that the user hasn't done * something stupid, like move it away from the MBR partition. */ for (part = PART_A; part < MAXPARTITIONS; part++) if (bsdlabel[part].pi_fstype == FS_MSDOS) { bootpart_fat12 = part; return 1; } msg_display(MSG_nobootpartdisklabel); process_menu(MENU_ok, NULL); return 0; } int md_pre_update(void) { struct mbr_partition *part; mbr_info_t *ext; int i; if (get_ramsize() <= 32) set_swap(diskdev, NULL); read_mbr(diskdev, &mbr); /* do a sanity check of the partition table */ for (ext = &mbr; ext; ext = ext->extended) { part = ext->mbr.mbr_parts; for (i = 0; i < MBR_PART_COUNT; part++, i++) { if (part->mbrp_type != MBR_PTYPE_FAT12) continue; if (part->mbrp_size < (MIN_FAT12_BOOT / 512)) { msg_display(MSG_boottoosmall); msg_display_add(MSG_nobootpart, 0); process_menu(MENU_yesno, NULL); if (!yesno) return 0; nobootfs = 1; } } } if (md_check_partitions() == 0) nobootfs = 1; return 1; } /* Upgrade support */ int md_update(void) { endwin(); md_copy_filesystem(); md_post_newfs(); wrefresh(curscr); wmove(stdscr, 0, 0); wclear(stdscr); wrefresh(stdscr); return 1; } void md_cleanup_install(void) { enable_rc_conf(); msg_display(MSG_howtoboot); process_menu(MENU_ok, NULL); } int md_bios_info(char *dev) { int cyl, head, sec; msg_display(MSG_nobiosgeom, dlcyl, dlhead, dlsec); if (guess_biosgeom_from_mbr(&mbr, &cyl, &head, &sec) >= 0) msg_display_add(MSG_biosguess, cyl, head, sec); set_bios_geom(cyl, head, sec); return 0; } void md_init(void) { /* Nothing to do */ } void md_init_set_status(int minimal) { (void)minimal; } int md_post_extract(void) { return 0; } int md_check_mbr(mbr_info_t *mbri) { mbr_info_t *ext; struct mbr_partition *part; int i; for (ext = mbri; ext; ext = ext->extended) { part = ext->mbr.mbr_parts; for (i = 0; i < MBR_PART_COUNT; part++, i++) { if (part->mbrp_type == MBR_PTYPE_FAT12) { bootstart = part->mbrp_start; bootsize = part->mbrp_size; break; } } } if (bootsize < (MIN_FAT12_BOOT / 512)) { msg_display(MSG_boottoosmall); msg_display_add(MSG_reeditpart, 0); process_menu(MENU_yesno, NULL); if (!yesno) return 0; return 1; } if (bootstart == 0 || bootsize == 0) { msg_display(MSG_nobootpart); msg_display_add(MSG_reeditpart, 0); process_menu(MENU_yesno, NULL); if (!yesno) return 0; return 1; } return 2; } int md_mbr_use_wholedisk(mbr_info_t *mbri) { struct mbr_sector *mbrs = &mbri->mbr; mbr_info_t *ext; struct mbr_partition *part; part = &mbrs->mbr_parts[0]; /* Set the partition information for full disk usage. */ while ((ext = mbri->extended)) { mbri->extended = ext->extended; free(ext); } memset(part, 0, MBR_PART_COUNT * sizeof *part); #ifdef BOOTSEL memset(&mbri->mbrb, 0, sizeof mbri->mbrb); #endif part[0].mbrp_type = MBR_PTYPE_FAT12; part[0].mbrp_size = FAT12_BOOT_SIZE / 512; part[0].mbrp_start = bsec; part[0].mbrp_flag = MBR_PFLAG_ACTIVE; part[1].mbrp_type = MBR_PTYPE_NETBSD; part[1].mbrp_size = dlsize - (bsec + FAT12_BOOT_SIZE / 512); part[1].mbrp_start = bsec + FAT12_BOOT_SIZE / 512; part[1].mbrp_flag = 0; ptstart = part[1].mbrp_start; ptsize = part[1].mbrp_size; bootstart = part[0].mbrp_start; bootsize = part[0].mbrp_size; return 1; }