void
md_installboot(int devfd, char *dev)
{
struct disklabel dl;
/* Get and check disklabel. */
if (ioctl(devfd, DIOCGDINFO, &dl) != 0)
err(1, "disklabel: %s", dev);
if (dl.d_magic != DISKMAGIC)
errx(1, "bad disklabel magic=0x%08x", dl.d_magic);
/* Warn on unknown disklabel types. */
if (dl.d_type == 0)
warnx("disklabel type unknown");
bootldr = fileprefix(root, bootldr);
if (!nowrite)
filecopy(stage2, bootldr);
/* Get bootstrap parameters to patch into proto. */
if (getbootparams(bootldr, devfd, &dl) != 0)
exit(1);
/* Write boot blocks to device. */
write_bootblocks(devfd, dev, &dl);
}
/*
* Read information about /boot's inode and filesystem parameters, then
* put biosboot (partition boot record) on the target drive with these
* parameters patched in.
*/
int
main(int argc, char *argv[])
{
int vol = -1, ndisks = 0, disk;
int c;
int devfd;
struct disklabel dl;
while ((c = getopt(argc, argv, "vn")) != -1) {
switch (c) {
case 'n':
/* Do not actually write the bootblock to disk. */
nowrite = 1;
break;
case 'v':
/* Give more information. */
verbose = 1;
break;
default:
usage();
}
}
if (argc - optind < 3)
usage();
boot = argv[optind];
proto = argv[optind + 1];
realdev = dev = argv[optind + 2];
/* Open raw disk device. */
if ((devfd = opendev(dev, (nowrite? O_RDONLY:O_RDWR),
OPENDEV_PART, &realdev)) < 0)
err(1, "open: %s", realdev);
if (verbose)
fprintf(stderr, "boot: %s proto: %s device: %s\n",
boot, proto, realdev);
/* Load proto blocks into core. */
if ((protostore = loadproto(proto, &protosize)) == NULL)
exit(1);
/* XXX - Paranoia: Make sure size is aligned! */
if (protosize & (DEV_BSIZE - 1))
errx(1, "proto %s bad size=%ld", proto, protosize);
if (protosize > SBSIZE - DEV_BSIZE)
errx(1, "proto bootblocks too big");
if (sr_volume(devfd, &vol, &ndisks)) {
/* Install boot loader into softraid volume. */
sr_installboot(devfd);
/* Install biosboot on each disk that is part of this volume. */
for (disk = 0; disk < ndisks; disk++)
sr_installpbr(devfd, vol, disk);
} else {
/* Get and check disklabel. */
if (ioctl(devfd, DIOCGDINFO, &dl) != 0)
err(1, "disklabel: %s", realdev);
if (dl.d_magic != DISKMAGIC)
err(1, "bad disklabel magic=0x%08x", dl.d_magic);
/* Warn on unknown disklabel types. */
if (dl.d_type == 0)
warnx("disklabel type unknown");
/* Get bootstrap parameters to patch into proto. */
if (getbootparams(boot, devfd, &dl) != 0)
exit(1);
/* Write boot blocks to device. */
write_bootblocks(devfd, &dl);
}
(void)close(devfd);
return 0;
}
/*
* Read information about /boot's inode and filesystem parameters, then
* put biosboot (partition boot record) on the target drive with these
* parameters patched in.
*/
int
main(int argc, char *argv[])
{
int c;
int devfd;
char *protostore;
long protosize;
struct stat sb;
struct disklabel dl;
struct dos_mbr mbr;
struct dos_partition *dp;
off_t startoff = 0;
while ((c = getopt(argc, argv, "vn")) != -1) {
switch (c) {
case 'n':
/* Do not actually write the bootblock to disk. */
nowrite = 1;
break;
case 'v':
/* Give more information. */
verbose = 1;
break;
default:
usage();
}
}
if (argc - optind < 3)
usage();
boot = argv[optind];
proto = argv[optind + 1];
realdev = dev = argv[optind + 2];
/* Open and check raw disk device. */
if ((devfd = opendev(dev, (nowrite? O_RDONLY:O_RDWR),
OPENDEV_PART, &realdev)) < 0)
err(1, "open: %s", realdev);
if (verbose) {
fprintf(stderr, "boot: %s\n", boot);
fprintf(stderr, "proto: %s\n", proto);
fprintf(stderr, "device: %s\n", realdev);
}
if (ioctl(devfd, DIOCGDINFO, &dl) != 0)
err(1, "disklabel: %s", realdev);
/* Check disklabel. */
if (dl.d_magic != DISKMAGIC)
err(1, "bad disklabel magic=0x%08x", dl.d_magic);
/* Warn on unknown disklabel types. */
if (dl.d_type == 0)
warnx("disklabel type unknown");
/* Load proto blocks into core. */
if ((protostore = loadproto(proto, &protosize)) == NULL)
exit(1);
/* XXX - Paranoia: Make sure size is aligned! */
if (protosize & (DEV_BSIZE - 1))
errx(1, "proto %s bad size=%ld", proto, protosize);
/* Write patched proto bootblock(s) into the superblock. */
if (protosize > SBSIZE - DEV_BSIZE)
errx(1, "proto bootblocks too big");
if (fstat(devfd, &sb) < 0)
err(1, "stat: %s", realdev);
if (!S_ISCHR(sb.st_mode))
errx(1, "%s: not a character device", realdev);
/* Get bootstrap parameters that are to be patched into proto. */
if (getbootparams(boot, devfd, &dl) != 0)
exit(1);
/* Patch the parameters into the proto bootstrap sector. */
pbr_set_symbols(proto, protostore, pbr_symbols);
if (!nowrite) {
/* Sync filesystems (to clean in-memory superblock?). */
sync(); sleep(1);
}
if (dl.d_type != 0 && dl.d_type != DTYPE_FLOPPY &&
dl.d_type != DTYPE_VND) {
if (lseek(devfd, (off_t)DOSBBSECTOR, SEEK_SET) < 0 ||
read(devfd, &mbr, sizeof(mbr)) < sizeof(mbr))
err(4, "can't read master boot record");
if (mbr.dmbr_sign != DOSMBR_SIGNATURE)
errx(1, "broken MBR");
/* Find OpenBSD partition. */
for (dp = mbr.dmbr_parts; dp < &mbr.dmbr_parts[NDOSPART];
dp++) {
if (dp->dp_size && dp->dp_typ == DOSPTYP_OPENBSD) {
startoff = (off_t)dp->dp_start * dl.d_secsize;
fprintf(stderr, "using MBR partition %ld: "
"type %d (0x%02x) offset %d (0x%x)\n",
(long)(dp - mbr.dmbr_parts),
dp->dp_typ, dp->dp_typ,
dp->dp_start, dp->dp_start);
break;
}
}
/* Don't check for old part number, that is ;-p */
if (dp >= &mbr.dmbr_parts[NDOSPART])
errx(1, "no OpenBSD partition");
}
if (!nowrite) {
if (lseek(devfd, startoff, SEEK_SET) < 0 ||
write(devfd, protostore, protosize) != protosize)
err(1, "write bootstrap");
}
(void)close(devfd);
return 0;
}
