2 * Copyright (c) 2011 Nathan Whitehorn
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/types.h>
30 #include <sys/sysctl.h>
38 static char fw[255] = "";
39 size_t len = sizeof(fw);
42 if (strlen(fw) == 0) {
43 error = sysctlbyname("machdep.bootmethod", fw, &len, NULL, -1);
52 default_scheme(void) {
57 is_scheme_bootable(const char *part_type)
60 if (strcmp(part_type, "GPT") == 0)
62 if (strcmp(x86_bootmethod(), "BIOS") == 0) {
63 if (strcmp(part_type, "BSD") == 0)
65 if (strcmp(part_type, "MBR") == 0)
73 is_fs_bootable(const char *part_type, const char *fs)
76 if (strcmp(fs, "freebsd-ufs") == 0)
79 if (strcmp(fs, "freebsd-zfs") == 0 &&
80 strcmp(x86_bootmethod(), "BIOS") == 0)
87 bootpart_size(const char *scheme)
90 /* No partcode except for GPT */
91 if (strcmp(scheme, "GPT") != 0)
94 if (strcmp(x86_bootmethod(), "BIOS") == 0)
103 bootpart_type(const char *scheme)
106 if (strcmp(x86_bootmethod(), "UEFI") == 0)
109 return ("freebsd-boot");
113 bootcode_path(const char *part_type)
116 if (strcmp(x86_bootmethod(), "UEFI") == 0)
119 if (strcmp(part_type, "GPT") == 0)
120 return ("/boot/pmbr");
121 if (strcmp(part_type, "MBR") == 0)
122 return ("/boot/mbr");
123 if (strcmp(part_type, "BSD") == 0)
124 return ("/boot/boot");
130 partcode_path(const char *part_type, const char *fs_type)
133 if (strcmp(part_type, "GPT") == 0) {
134 if (strcmp(x86_bootmethod(), "UEFI") == 0)
135 return ("/boot/boot1.efifat");
136 else if (strcmp(fs_type, "zfs") == 0)
137 return ("/boot/gptzfsboot");
139 return ("/boot/gptboot");
142 /* No partcode except for GPT */