diff options
Diffstat (limited to 'sys/arch/i386/stand/installboot/installboot.c')
| -rw-r--r-- | sys/arch/i386/stand/installboot/installboot.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/sys/arch/i386/stand/installboot/installboot.c b/sys/arch/i386/stand/installboot/installboot.c index 43c3d50ac0b..3063302c72b 100644 --- a/sys/arch/i386/stand/installboot/installboot.c +++ b/sys/arch/i386/stand/installboot/installboot.c @@ -1,4 +1,4 @@ -/* $OpenBSD: installboot.c,v 1.4 1997/07/17 22:47:01 mickey Exp $ */ +/* $OpenBSD: installboot.c,v 1.5 1997/08/22 20:03:17 mickey Exp $ */ /* $NetBSD: installboot.c,v 1.5 1995/11/17 23:23:50 gwr Exp $ */ /* @@ -41,6 +41,13 @@ #include <ufs/ufs/dinode.h> #include <ufs/ufs/dir.h> #include <ufs/ffs/fs.h> + +#include <vm/vm.h> +#include <sys/sysctl.h> + +#include <machine/cpu.h> +#include <machine/biosvar.h> + #include <err.h> #include <a.out.h> #include <fcntl.h> @@ -64,6 +71,9 @@ u_int8_t *block_count_p; /* block count var. in prototype image */ u_int8_t *block_table_p; /* block number array in prototype image */ int maxblocknum; /* size of this array */ +#ifdef CPU_BIOSDEV +int biosdev; +#endif char *loadprotoblocks __P((char *, long *)); int loadblocknums __P((char *, int)); @@ -127,6 +137,32 @@ main(argc, argv) printf("device: %s\n", dev); } +#ifdef CPU_BIOSDEV + if (heads == -1 || nsectors == -1) { + int mib[3], size; + + mib[0] = CTL_MACHDEP; + mib[1] = CPU_BIOSDEV; + size = sizeof(int); + + if (sysctl(mib, 2, &biosdev, &size, NULL, 0) == -1) + err(1, "sysctl"); + + if (biosdev & 0x80) { + int geo; + + mib[1] = CPU_BIOSGEOMETRY; + size = sizeof(int); + + if (sysctl(mib, 2, &geo, &size, NULL, 0) == -1) + err(1, "sysctl"); + + heads = BIOSNHEADS(geo); + nsectors = BIOSNSECTS(geo); + } + } +#endif + /* Load proto blocks into core */ if ((protostore = loadprotoblocks(proto, &protosize)) == NULL) exit(1); |