1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/* $OpenBSD: boot.c,v 1.7 1997/04/21 20:03:30 mickey Exp $ */
/*
* Copyright (c) 1997 Michael Shalayeff
* All rights reserved.
*
* 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 by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE REGENTS OR CONTRIBUTORS 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.
*
*/
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/stat.h>
#include <libsa.h>
#include <debug.h>
#include "cmd.h"
char *kernels[] = {
"bsd", "bsd.gz",
"obsd", "obsd.gz",
NULL
};
extern const char version[];
int boothowto;
u_int cnvmem, extmem;
struct cmd_state cmd = {
"", "", "/", (void *)0x100000, 50, ""
};
void
boot(bootdev)
dev_t bootdev;
{
register char *bootfile = kernels[0];
register int i = 0;
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4730;
#endif
gateA20(1);
#ifndef _TEST
memprobe();
#endif
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4f31;
#endif
cons_probe();
debug_init();
printf(">> OpenBSD BOOT: %u/%u k [%s]\n", cnvmem, extmem, version);
devboot(bootdev, cmd.bootdev);
while (1) {
strncpy(cmd.image, bootfile, sizeof(cmd.image));
do {
printf("boot> ");
} while(!getcmd(&cmd));
printf("booting %s: ", cmd.path);
exec(cmd.path, cmd.addr, boothowto);
if (kernels[++i] == NULL)
bootfile = kernels[i=0];
else
bootfile = kernels[i];
cmd.timeout += 20;
printf(" failed(%d). will try %s\n", errno, bootfile);
}
}
#ifdef _TEST
int
main()
{
boot();
return 0;
}
#endif
|
