diff options
Diffstat (limited to 'sys/i386/boot/dosboot/fbsdboot.c')
| -rw-r--r-- | sys/i386/boot/dosboot/fbsdboot.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/sys/i386/boot/dosboot/fbsdboot.c b/sys/i386/boot/dosboot/fbsdboot.c new file mode 100644 index 0000000..84fdb39 --- /dev/null +++ b/sys/i386/boot/dosboot/fbsdboot.c @@ -0,0 +1,92 @@ +/*
+ * fbsdboot.c Boot FreeBSD from DOS
+ *
+ * (C) 1994 by Christian Gusenbauer (cg@fimp01.fim.uni-linz.ac.at)
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * I ALLOW YOU USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. I DISCLAIM
+ * ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
+ * USE OF THIS SOFTWARE.
+ *
+ */
+#include <dos.h>
+#include <stdio.h>
+#include <process.h>
+
+#include "reboot.h"
+#include "boot.h"
+#include "bootinfo.h"
+#include "dosboot.h"
+#include "protmod.h"
+
+#define MAV 1
+#define MIV 5
+
+#define ptr2pa(x) (((((long)(x))&0xffff0000l)>>12l)+(((long)(x))&0xffffl))
+
+static void usage(char *name)
+{
+ fprintf(stderr, "FreeBSD boot Version %d.%d\n", MAV, MIV);
+ fprintf(stderr, "(c) 1994 Christian Gusenbauer, cg@fimp01.fim.uni-linz.ac.at\n\n");
+ fprintf(stderr, "usage: %s [ options ] [ kernelname ]\n", name);
+ fprintf(stderr, "where options are:\n");
+ fprintf(stderr, "\t-r ... use compiled-in rootdev\n");
+ fprintf(stderr, "\t-s ... reboot to single user only\n");
+ fprintf(stderr, "\t-a ... ask for file name to reboot from\n");
+ fprintf(stderr, "\t-d ... give control to kernel debugger\n");
+ fprintf(stderr, "\t-c ... invoke user configuration routing\n");
+ fprintf(stderr, "\t-v ... print all potentially useful info\n");
+ fprintf(stderr, "\t-D ... boot a kernel from a DOS medium\n");
+ fprintf(stderr, "\t (default: c:\\kernel)\n");
+ exit(1);
+}
+
+int main(int argc, char *argv[])
+{
+ char *kernel="/kernel", *ptr;
+ int i, dos=0, howto=0;
+ extern unsigned long get_diskinfo(int);
+
+ VCPIboot = 0;
+ slice = 0;
+
+ for (i = 1; i < argc; i++) { /* check arguments */
+ if (argv[i][0] != '-') { /* kernel name */
+ kernel = argv[i];
+ break;
+ }
+ ptr = &argv[i][1];
+ while (*ptr) { /* check options */
+ switch(*ptr) {
+ case 'r': howto |= RB_DFLTROOT; break;
+ case 's': howto |= RB_SINGLE; break;
+ case 'a': howto |= RB_ASKNAME; break;
+ case 'c': howto |= RB_CONFIG; break;
+ case 'd': howto |= RB_KDB; break;
+ case 'v': howto |= RB_VERBOSE; break;
+ case 'D': dos = 1; kernel = "c:\\kernel"; break;
+ case '?':
+ default: usage(argv[0]);
+ }
+ ptr++;
+ }
+ }
+
+ bootinfo.version = 1;
+ bootinfo.nfs_diskless = 0;
+ bootinfo.kernelname = (char *) ptr2pa(kernel);
+ for (i = 0; i < N_BIOS_GEOM; i++)
+ bootinfo.bios_geom[i] = get_diskinfo(0x80+i);
+
+ if (dos)
+ dosboot(howto, kernel); /* boot given kernel from DOS partition */
+ else
+ bsdboot(0x80, howto, kernel); /* boot from FreeBSD partition */
+ return 0;
+}
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