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New -as mkisofs option -eltorito-platform

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This commit is contained in:
Thomas Schmitt 2017-06-03 15:24:48 +02:00
parent 3e3fddd41a
commit 2126dce208
5 changed files with 124 additions and 43 deletions
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60
xorriso/emulators.c
View File

@ -664,7 +664,7 @@ int Xorriso_genisofs_count_args(struct XorrisO *xorriso, int argc, char **argv,
"-hfsplus-block-size", "-apm-block-size", "--grub2-mbr", "-hfsplus-block-size", "-apm-block-size", "--grub2-mbr",
"--grub2-sparc-core", "--sort-weight-list", "--sort-weight-patterns", "--grub2-sparc-core", "--sort-weight-list", "--sort-weight-patterns",
"-hppa-hdrversion", "-file_name_limit", "--set_all_file_dates", "-hppa-hdrversion", "-file_name_limit", "--set_all_file_dates",
"--gpt_disk_guid", "-iso_mbr_part_type", "--gpt_disk_guid", "-iso_mbr_part_type", "-eltorito-platform",
"" ""
}; };
static char arg2_options[][41]= { static char arg2_options[][41]= {
@ -857,6 +857,7 @@ int Xorriso_genisofs_help(struct XorrisO *xorriso, int flag)
" Specify the checksum types desired for the output image (in .jigdo)", " Specify the checksum types desired for the output image (in .jigdo)",
" -checksum_algorithm_template alg1,alg2,...", " -checksum_algorithm_template alg1,alg2,...",
" Specify the checksum types desired for the output jigdo template", " Specify the checksum types desired for the output jigdo template",
" -eltorito-platform Set El Torito platform id for the next boot entry",
" -b FILE, -eltorito-boot FILE", " -b FILE, -eltorito-boot FILE",
" Set El Torito boot image name", " Set El Torito boot image name",
" -eltorito-alt-boot Start specifying alternative El Torito boot parameters", " -eltorito-alt-boot Start specifying alternative El Torito boot parameters",
@ -1269,6 +1270,44 @@ ex:;
} }
int Xorriso_genisofs_platform(struct XorrisO *xorriso, char *id, int flag)
{
unsigned int u;
char re_id[64];
if(strcmp(id, "x86") == 0)
return(0);
else if(strcmp(id, "PPC") == 0)
return(1);
else if(strcmp(id, "Mac") == 0)
return(2);
else if(strcmp(id, "efi") == 0)
return(0xef);
u= 0x100;
if(strncmp(id, "0x", 2) == 0) {
sscanf(id + 2, "%x", &u);
} else {
sscanf(id, "%u", &u);
sprintf(re_id, "%u", u);
if(strcmp(id, re_id) != 0)
goto wrong_id;
}
if(u <= 0xff)
return((int) u);
wrong_id:;
sprintf(xorriso->info_text,
"Unrecognized El Torito Platform Id : '%.16s%s'",
id, strlen(id) > 16 ? "..." : "");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
sprintf(xorriso->info_text,
"Recognizable are: x86, PPC, Mac, efi, [0...255], [0x00...0xff]");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "HINT", 0);
return(-1);
}
/* micro emulation of mkisofs */ /* micro emulation of mkisofs */
int Xorriso_genisofs(struct XorrisO *xorriso, char *whom, int Xorriso_genisofs(struct XorrisO *xorriso, char *whom,
int argc, char **argv, int flag) int argc, char **argv, int flag)
@ -1284,6 +1323,7 @@ int Xorriso_genisofs(struct XorrisO *xorriso, char *whom,
int old_root_md5= 1, old_root_dev= 0, old_root_ino= 1, sort_file_pattern= 0; int old_root_md5= 1, old_root_dev= 0, old_root_ino= 1, sort_file_pattern= 0;
int *weight_list= NULL, weight_count= 0; int *weight_list= NULL, weight_count= 0;
int *delay_opt_list= NULL, delay_opt_count= 0; int *delay_opt_list= NULL, delay_opt_count= 0;
int mkisofs_b_platform_id= 0x00;
char *sfe= NULL, *adr= NULL, ra_text[80], *pathspec= NULL, *sort_file= NULL; char *sfe= NULL, *adr= NULL, ra_text[80], *pathspec= NULL, *sort_file= NULL;
char *ept, *add_pt, *eff_path= NULL, *indev= NULL, msc[80], *cpt; char *ept, *add_pt, *eff_path= NULL, *indev= NULL, msc[80], *cpt;
char *old_root= NULL, *argpt, *hargv[1]; char *old_root= NULL, *argpt, *hargv[1];
@ -1892,6 +1932,7 @@ not_enough_args:;
delay_opt_list[delay_opt_count - 1]|= 1<<31; delay_opt_list[delay_opt_count - 1]|= 1<<31;
} else if(strcmp(argpt, "-b") == 0 || } else if(strcmp(argpt, "-b") == 0 ||
strcmp(argpt, "-eltorito-boot") == 0 || strcmp(argpt, "-eltorito-boot") == 0 ||
strcmp(argpt, "-eltorito-platform") == 0 ||
strcmp(argpt, "--efi-boot") == 0 || strcmp(argpt, "--efi-boot") == 0 ||
strcmp(argpt, "-e") == 0 || strcmp(argpt, "-e") == 0 ||
strcmp(argpt, "-mips-boot") == 0 || strcmp(argpt, "-mips-boot") == 0 ||
@ -2414,7 +2455,7 @@ problem_handler_2:;
if(strcmp(argpt, "-e") == 0) if(strcmp(argpt, "-e") == 0)
xorriso->boot_platform_id= 0xef; xorriso->boot_platform_id= 0xef;
else else
xorriso->boot_platform_id= 0x00; xorriso->boot_platform_id= mkisofs_b_platform_id;
xorriso->boot_efi_default= 0; xorriso->boot_efi_default= 0;
if(xorriso->boot_emul_default) if(xorriso->boot_emul_default)
xorriso->boot_image_emul= 2; xorriso->boot_image_emul= 2;
@ -2432,6 +2473,21 @@ problem_handler_2:;
} }
xorriso->keep_boot_image= 0; xorriso->keep_boot_image= 0;
with_boot_image= 1; with_boot_image= 1;
} else if(strcmp(argpt, "-eltorito-platform") == 0) {
if(i + 1>=argc)
goto not_enough_args;
i++;
if(xorriso->boot_image_bin_path[0] != 0) {
ret= Xorriso_genisofs_add_boot(xorriso, 0);
if(ret <= 0)
goto problem_handler_boot;
}
mkisofs_b_platform_id= Xorriso_genisofs_platform(xorriso, argv[i], 0);
if(mkisofs_b_platform_id < 0) {
mkisofs_b_platform_id= 0;
goto problem_handler_boot;
}
} else if(strcmp(argpt, "-c") == 0 || } else if(strcmp(argpt, "-c") == 0 ||
strcmp(argpt, "-eltorito-catalog") == 0) { strcmp(argpt, "-eltorito-catalog") == 0) {
if(i+1>=argc) if(i+1>=argc)

2
xorriso/xorriso_timestamp.h
View File

@ -1 +1 @@
#define Xorriso_timestamP "2017.05.09.081543" #define Xorriso_timestamP "2017.06.03.132429"

9
xorriso/xorrisofs.1
View File

@ -9,7 +9,7 @@
.\" First parameter, NAME, should be all caps .\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1) .\" other parameters are allowed: see man(7), man(1)
.TH XORRISOFS 1 "Version 1.4.7, Feb 26, 2017" .TH XORRISOFS 1 "Version 1.4.7, Jun 03, 2017"
.\" Please adjust this date whenever revising the manpage. .\" Please adjust this date whenever revising the manpage.
.\" .\"
.\" Some roff macros, for reference: .\" Some roff macros, for reference:
@ -988,6 +988,13 @@ Perform \-eltorito\-alt\-boot, option \-e with the given
iso_rr_path, \-no\-emul\-boot, and again \-eltorito\-alt\-boot. This gesture is iso_rr_path, \-no\-emul\-boot, and again \-eltorito\-alt\-boot. This gesture is
used for achieving EFI\-bootability of the GRUB2 rescue CD. used for achieving EFI\-bootability of the GRUB2 rescue CD.
.TP .TP
\fB\-eltorito-platform\fR "x86"|"PPC"|"Mac"|"efi"|0xnn|nnn
Perform option \-eltorito\-alt\-boot and set the Platform Id number for the next
option \-b or \-eltorito\-boot. The number may be chosen by a platform name or by
a number between 0 and 255 (0x00 and 0xFF). "x86" = 0 is for PC\-BIOS,
"PPC" = 1 for some PowerPC systems, "Mac" = 2 for some MacIntosh systems,
"efi" = 0xEF for EFI on modern PCs with x86 compatible CPUs or others.
.TP
\fB\-boot-load-size\fR number|"full" \fB\-boot-load-size\fR number|"full"
Set the number of 512\-byte blocks to be loaded at boot time Set the number of 512\-byte blocks to be loaded at boot time
from the boot image in the current catalog entry. from the boot image in the current catalog entry.

85
xorriso/xorrisofs.info
View File

@ -881,6 +881,13 @@ the System Area.
Perform -eltorito-alt-boot, option -e with the given iso_rr_path, Perform -eltorito-alt-boot, option -e with the given iso_rr_path,
-no-emul-boot, and again -eltorito-alt-boot. This gesture is used -no-emul-boot, and again -eltorito-alt-boot. This gesture is used
for achieving EFI-bootability of the GRUB2 rescue CD. for achieving EFI-bootability of the GRUB2 rescue CD.
-eltorito-platform "x86"|"PPC"|"Mac"|"efi"|0xnn|nnn
Perform option -eltorito-alt-boot and set the Platform Id number
for the next option -b or -eltorito-boot. The number may be chosen
by a platform name or by a number between 0 and 255 (0x00 and
0xFF). "x86" = 0 is for PC-BIOS, "PPC" = 1 for some PowerPC
systems, "Mac" = 2 for some MacIntosh systems, "efi" = 0xEF for EFI
on modern PCs with x86 compatible CPUs or others.
-boot-load-size number|"full" -boot-load-size number|"full"
Set the number of 512-byte blocks to be loaded at boot time from Set the number of 512-byte blocks to be loaded at boot time from
the boot image in the current catalog entry. the boot image in the current catalog entry.
@ -1897,13 +1904,13 @@ File: xorrisofs.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: T
* --acl Recording of ACLs: SetExtras. (line 95) * --acl Recording of ACLs: SetExtras. (line 95)
* --application_use set Application Use field: ImageId. (line 79) * --application_use set Application Use field: ImageId. (line 79)
* --boot-catalog-hide Hide El Torito boot catalog: Bootable. (line 112) * --boot-catalog-hide Hide El Torito boot catalog: Bootable. (line 119)
* --efi-boot El Torito EFI boot image: Bootable. (line 59) * --efi-boot El Torito EFI boot image: Bootable. (line 59)
* --embedded-boot Fill System Area e.g. by MBR: SystemArea. (line 79) * --embedded-boot Fill System Area e.g. by MBR: SystemArea. (line 79)
* --emul-toc enable table-of-content emulation: SetProduct. (line 33) * --emul-toc enable table-of-content emulation: SetProduct. (line 33)
* --for_backup Enable backup fidelity: SetExtras. (line 92) * --for_backup Enable backup fidelity: SetExtras. (line 92)
* --gpt_disk_guid GPT GUID: SystemArea. (line 228) * --gpt_disk_guid GPT GUID: SystemArea. (line 228)
* --grub2-boot-info Patch El Torito boot image: Bootable. (line 100) * --grub2-boot-info Patch El Torito boot image: Bootable. (line 107)
* --grub2-mbr Install modern GRUB2 MBR: SystemArea. (line 81) * --grub2-mbr Install modern GRUB2 MBR: SystemArea. (line 81)
* --grub2-sparc-core SUN SPARC core file: SystemArea. (line 283) * --grub2-sparc-core SUN SPARC core file: SystemArea. (line 283)
* --hardlinks Recording of hardlink relations: SetExtras. (line 116) * --hardlinks Recording of hardlink relations: SetExtras. (line 116)
@ -1949,9 +1956,9 @@ File: xorrisofs.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: T
* -b El Torito PC-BIOS boot image: Bootable. (line 38) * -b El Torito PC-BIOS boot image: Bootable. (line 38)
* -B SUN SPARC boot images: SystemArea. (line 268) * -B SUN SPARC boot images: SystemArea. (line 268)
* -biblio set Biblio File path: ImageId. (line 62) * -biblio set Biblio File path: ImageId. (line 62)
* -boot-info-table Patch El Torito boot image: Bootable. (line 95) * -boot-info-table Patch El Torito boot image: Bootable. (line 102)
* -boot-load-size El Torito boot image load size: Bootable. (line 63) * -boot-load-size El Torito boot image load size: Bootable. (line 70)
* -c El Torito boot catalog name: Bootable. (line 105) * -c El Torito boot catalog name: Bootable. (line 112)
* -C set load address and write address offset: Loading. (line 25) * -C set load address and write address offset: Loading. (line 25)
* -cdrecord-params set load address and write address offset: Loading. * -cdrecord-params set load address and write address offset: Loading.
(line 46) (line 46)
@ -1973,10 +1980,11 @@ File: xorrisofs.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: T
* -efi-boot-part EFI boot partition: SystemArea. (line 218) * -efi-boot-part EFI boot partition: SystemArea. (line 218)
* -eltorito-alt-boot begin next boot catalog entry: Bootable. (line 47) * -eltorito-alt-boot begin next boot catalog entry: Bootable. (line 47)
* -eltorito-boot El Torito PC-BIOS boot image: Bootable. (line 45) * -eltorito-boot El Torito PC-BIOS boot image: Bootable. (line 45)
* -eltorito-catalog El Torito boot catalog name: Bootable. (line 110) * -eltorito-catalog El Torito boot catalog name: Bootable. (line 117)
* -eltorito-id El Torito boot section id string: Bootable. (line 84) * -eltorito-id El Torito boot section id string: Bootable. (line 91)
* -eltorito-platform El Torito Platform Id: Bootable. (line 63)
* -eltorito-selcrit El Torito boot selection criteria: Bootable. * -eltorito-selcrit El Torito boot selection criteria: Bootable.
(line 91) (line 98)
* -exclude exclude disk files from inserting: SetInsert. (line 37) * -exclude exclude disk files from inserting: SetInsert. (line 37)
* -exclude-list exclude disk files from inserting: SetInsert. (line 44) * -exclude-list exclude disk files from inserting: SetInsert. (line 44)
* -f follow symbolic links on disk: SetInsert. (line 22) * -f follow symbolic links on disk: SetInsert. (line 22)
@ -1990,7 +1998,7 @@ File: xorrisofs.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: T
* -graft-points enable target=source pathspecs: SetInsert. (line 28) * -graft-points enable target=source pathspecs: SetInsert. (line 28)
* -gui increase frequency of pacifier messages: Miscellaneous. * -gui increase frequency of pacifier messages: Miscellaneous.
(line 29) (line 29)
* -hard-disk-boot El Torito boot image emulation: Bootable. (line 74) * -hard-disk-boot El Torito boot image emulation: Bootable. (line 81)
* -help list supported options: Miscellaneous. (line 21) * -help list supported options: Miscellaneous. (line 21)
* -hfs-bless HFS+ blessing ppc_bootdir: SetExtras. (line 201) * -hfs-bless HFS+ blessing ppc_bootdir: SetExtras. (line 201)
* -hfs-bless-by HFS+ blessing: SetExtras. (line 191) * -hfs-bless-by HFS+ blessing: SetExtras. (line 191)
@ -2053,7 +2061,7 @@ File: xorrisofs.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: T
* -mips-boot MIPS Big Endian boot image: SystemArea. (line 257) * -mips-boot MIPS Big Endian boot image: SystemArea. (line 257)
* -mipsel-boot MIPS Little Endian boot image: SystemArea. (line 263) * -mipsel-boot MIPS Little Endian boot image: SystemArea. (line 263)
* -N omit version number in ISO file names: SetCompl. (line 64) * -N omit version number in ISO file names: SetCompl. (line 64)
* -no-emul-boot El Torito boot image emulation: Bootable. (line 77) * -no-emul-boot El Torito boot image emulation: Bootable. (line 84)
* -no-pad do not add zeros to ISO tree: SetProduct. (line 93) * -no-pad do not add zeros to ISO tree: SetProduct. (line 93)
* -o set output file address: SetProduct. (line 8) * -o set output file address: SetProduct. (line 8)
* -old-exclude exclude disk files from inserting: SetInsert. (line 42) * -old-exclude exclude disk files from inserting: SetInsert. (line 42)
@ -2134,17 +2142,17 @@ File: xorrisofs.info, Node: ConceptIdx, Prev: CommandIdx, Up: Top
* Block address, set sorting weight, --sort-weight-patterns: SetProduct. * Block address, set sorting weight, --sort-weight-patterns: SetProduct.
(line 76) (line 76)
* Bootability, boot catalog hidden, --boot-catalog-hide: Bootable. * Bootability, boot catalog hidden, --boot-catalog-hide: Bootable.
(line 112) (line 119)
* Bootability, boot catalog name, -c, -eltorito-catalog: Bootable. * Bootability, boot catalog name, -c, -eltorito-catalog: Bootable.
(line 105) (line 112)
* Bootability, boot image emulation, -hard-disk-boot: Bootable. * Bootability, boot image emulation, -hard-disk-boot: Bootable.
(line 74) (line 81)
* Bootability, boot image load size, -boot-load-size: Bootable. * Bootability, boot image load size, -boot-load-size: Bootable.
(line 63) (line 70)
* Bootability, boot image patching, --grub2-boot-info: Bootable. * Bootability, boot image patching, --grub2-boot-info: Bootable.
(line 100) (line 107)
* Bootability, boot image patching, -boot-info-table: Bootable. * Bootability, boot image patching, -boot-info-table: Bootable.
(line 95) (line 102)
* Bootability, bootable MBR partition, --mbr-force-bootable: SystemArea. * Bootability, bootable MBR partition, --mbr-force-bootable: SystemArea.
(line 139) (line 139)
* Bootability, control, --grub2-sparc-core: SystemArea. (line 283) * Bootability, control, --grub2-sparc-core: SystemArea. (line 283)
@ -2153,6 +2161,7 @@ File: xorrisofs.info, Node: ConceptIdx, Prev: CommandIdx, Up: Top
* Bootability, control, -b, -eltorito-boot: Bootable. (line 38) * Bootability, control, -b, -eltorito-boot: Bootable. (line 38)
* Bootability, control, -B, -sparc-boot: SystemArea. (line 268) * Bootability, control, -B, -sparc-boot: SystemArea. (line 268)
* Bootability, control, -e: Bootable. (line 53) * Bootability, control, -e: Bootable. (line 53)
* Bootability, control, -eltorito-platform: Bootable. (line 63)
* Bootability, control, -hppa-bootloader: SystemArea. (line 295) * Bootability, control, -hppa-bootloader: SystemArea. (line 295)
* Bootability, control, -hppa-cmdline: SystemArea. (line 289) * Bootability, control, -hppa-cmdline: SystemArea. (line 289)
* Bootability, control, -hppa-hdrversion: SystemArea. (line 303) * Bootability, control, -hppa-hdrversion: SystemArea. (line 303)
@ -2162,9 +2171,9 @@ File: xorrisofs.info, Node: ConceptIdx, Prev: CommandIdx, Up: Top
* Bootability, control, -mips-boot: SystemArea. (line 257) * Bootability, control, -mips-boot: SystemArea. (line 257)
* Bootability, control, -mipsel-boot: SystemArea. (line 263) * Bootability, control, -mipsel-boot: SystemArea. (line 263)
* Bootability, El Torito section id string, -eltorito-id: Bootable. * Bootability, El Torito section id string, -eltorito-id: Bootable.
(line 84)
* Bootability, El Torito selection criteria, -eltorito-selcrit: Bootable.
(line 91) (line 91)
* Bootability, El Torito selection criteria, -eltorito-selcrit: Bootable.
(line 98)
* Bootability, fill System Area e.g. by MBR, -G, --embedded-boot, -generic-boot: SystemArea. * Bootability, fill System Area e.g. by MBR, -G, --embedded-boot, -generic-boot: SystemArea.
(line 68) (line 68)
* Bootability, for CHRP, -chrp-boot-part: SystemArea. (line 241) * Bootability, for CHRP, -chrp-boot-part: SystemArea. (line 241)
@ -2182,7 +2191,7 @@ File: xorrisofs.info, Node: ConceptIdx, Prev: CommandIdx, Up: Top
(line 108) (line 108)
* Bootability, next entry, -eltorito-alt-boot: Bootable. (line 47) * Bootability, next entry, -eltorito-alt-boot: Bootable. (line 47)
* Bootability, no boot image emulation, -no-emul-boot: Bootable. * Bootability, no boot image emulation, -no-emul-boot: Bootable.
(line 77) (line 84)
* Bootability, partitions like with isohybrid, -part_like_isohybrid: SystemArea. * Bootability, partitions like with isohybrid, -part_like_isohybrid: SystemArea.
(line 120) (line 120)
* Bootability, patch System Area partition table, --protective-msdos-label: SystemArea. * Bootability, patch System Area partition table, --protective-msdos-label: SystemArea.
@ -2352,24 +2361,24 @@ Node: SetExtras21966
Node: SetHide32539 Node: SetHide32539
Node: ImageId33843 Node: ImageId33843
Node: Bootable38125 Node: Bootable38125
Node: SystemArea43896 Node: SystemArea44351
Node: Charset61048 Node: Charset61503
Node: Jigdo62073 Node: Jigdo62528
Node: Miscellaneous66350 Node: Miscellaneous66805
Node: Examples67995 Node: Examples68450
Node: ExSimple68489 Node: ExSimple68944
Node: ExGraft68972 Node: ExGraft69427
Node: ExMkisofs70272 Node: ExMkisofs70727
Node: ExGrowisofs71538 Node: ExGrowisofs71993
Node: ExIncBackup72728 Node: ExIncBackup73183
Node: ExIncBckAcc75889 Node: ExIncBckAcc76344
Node: ExBootable77578 Node: ExBootable78033
Node: Files81760 Node: Files82215
Node: Environ82855 Node: Environ83310
Node: Seealso83626 Node: Seealso84081
Node: Bugreport84277 Node: Bugreport84732
Node: Legal84870 Node: Legal85325
Node: CommandIdx85767 Node: CommandIdx86222
Node: ConceptIdx101342 Node: ConceptIdx101870
 
End Tag Table End Tag Table

11
xorriso/xorrisofs.texi
View File

@ -50,7 +50,7 @@
@c man .\" First parameter, NAME, should be all caps @c man .\" First parameter, NAME, should be all caps
@c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
@c man .\" other parameters are allowed: see man(7), man(1) @c man .\" other parameters are allowed: see man(7), man(1)
@c man .TH XORRISOFS 1 "Version 1.4.7, Feb 26, 2017" @c man .TH XORRISOFS 1 "Version 1.4.7, Jun 03, 2017"
@c man .\" Please adjust this date whenever revising the manpage. @c man .\" Please adjust this date whenever revising the manpage.
@c man .\" @c man .\"
@c man .\" Some roff macros, for reference: @c man .\" Some roff macros, for reference:
@ -1339,6 +1339,15 @@ Perform -eltorito-alt-boot, option -e with the given
iso_rr_path, -no-emul-boot, and again -eltorito-alt-boot. This gesture is iso_rr_path, -no-emul-boot, and again -eltorito-alt-boot. This gesture is
used for achieving EFI-bootability of the GRUB2 rescue CD. used for achieving EFI-bootability of the GRUB2 rescue CD.
@c man .TP @c man .TP
@item -eltorito-platform "x86"|"PPC"|"Mac"|"efi"|0xnn|nnn
@kindex -eltorito-platform El Torito Platform Id
@cindex Bootability, control, -eltorito-platform
Perform option -eltorito-alt-boot and set the Platform Id number for the next
option -b or -eltorito-boot. The number may be chosen by a platform name or by
a number between 0 and 255 (0x00 and 0xFF). "x86" = 0 is for PC-BIOS,
"PPC" = 1 for some PowerPC systems, "Mac" = 2 for some MacIntosh systems,
"efi" = 0xEF for EFI on modern PCs with x86 compatible CPUs or others.
@c man .TP
@item -boot-load-size number|"full" @item -boot-load-size number|"full"
@kindex -boot-load-size El Torito boot image load size @kindex -boot-load-size El Torito boot image load size
@cindex Bootability, boot image load size, -boot-load-size @cindex Bootability, boot image load size, -boot-load-size