void
write_bootblocks(int devfd, struct disklabel *dl)
{
struct stat sb;
u_int8_t *secbuf;
u_int start = 0;
/* Write patched proto bootblock(s) into the superblock. */
if (fstat(devfd, &sb) < 0)
err(1, "stat: %s", realdev);
if (!S_ISCHR(sb.st_mode))
errx(1, "%s: not a character device", realdev);
/* 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);
}
/*
* Find OpenBSD partition. Floppies are special, getting an
* everything-in-one biosboot starting at sector 0.
*/
if (dl->d_type != DTYPE_FLOPPY) {
start = findopenbsd(devfd, dl);
if (start == (u_int)-1)
errx(1, "no Bitrig partition");
}
if (verbose)
fprintf(stderr, "%s will be written at sector %u\n", proto,
start);
if (start + (protosize / dl->d_secsize) > BOOTBIOS_MAXSEC)
warnx("%s extends beyond sector %u. Bitrig might not boot.",
proto, BOOTBIOS_MAXSEC);
if (!nowrite) {
if (lseek(devfd, (off_t)start * dl->d_secsize, SEEK_SET) < 0)
err(1, "seek bootstrap");
secbuf = calloc(1, dl->d_secsize);
bcopy(protostore, secbuf, protosize);
if (write(devfd, secbuf, dl->d_secsize) != dl->d_secsize)
err(1, "write bootstrap");
free(secbuf);
}
}
void
write_bootblocks(int devfd, struct disklabel *dl)
{
struct stat sb;
u_int start = 0;
/* Write patched proto bootblock(s) into the superblock. */
if (fstat(devfd, &sb) < 0)
err(1, "stat: %s", realdev);
if (!S_ISCHR(sb.st_mode))
errx(1, "%s: not a character device", realdev);
/* 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) {
/* Find OpenBSD partition. */
start = findopenbsd(devfd, dl);
if (start == (u_int)-1)
errx(1, "no OpenBSD partition");
}
if (start + (protosize / DEV_BSIZE) > BOOTBIOS_MAXSEC)
errx(1, "invalid location: all of /boot must be < sector %u.",
BOOTBIOS_MAXSEC);
if (verbose)
fprintf(stderr, "/boot will be written at sector %u\n", start);
if (!nowrite) {
if (lseek(devfd, (off_t)start * dl->d_secsize, SEEK_SET) < 0 ||
write(devfd, protostore, protosize) != protosize)
err(1, "write bootstrap");
}
}