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@ -50,7 +50,7 @@ |
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@c man .\" First parameter, NAME, should be all caps |
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@c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection |
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@c man .\" other parameters are allowed: see man(7), man(1) |
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@c man .TH XORRISOFS 1 "Version 1.4.1, May 17, 2015" |
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@c man .TH XORRISOFS 1 "Version 1.4.1, Jun 30, 2015" |
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@c man .\" Please adjust this date whenever revising the manpage. |
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@c man .\" |
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@c man .\" Some roff macros, for reference: |
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@ -1272,15 +1272,14 @@ entry. Up to 32 catalog entries are possible. |
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Specify the boot image file which shall be mentioned in the current |
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entry of the El Torito boot catalog. It will be marked as suitable for EFI. |
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@* |
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Normally no other El Torito options should be used with the catalog entry |
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that points to an EFI image. |
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Consider to use @minus{}@minus{}efi-boot rather than -e. |
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Option -e should be followed by option -no-emul-boot and no other El Torito |
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options before an eventual -eltorito-alt-boot. |
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@c man .TP |
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@item @minus{}@minus{}efi-boot iso_rr_path |
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@kindex @minus{}@minus{}efi-boot El Torito EFI boot image |
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@cindex Bootability, control, @minus{}@minus{}efi-boot |
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Perform -eltorito-alt-boot, option -e with the given |
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iso_rr_path, and again -eltorito-alt-boot. This gesture is |
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iso_rr_path, -no-emul-boot, and again -eltorito-alt-boot. This gesture is |
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used for achieving EFI-bootability of the GRUB2 rescue CD. |
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@c man .TP |
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@item -boot-load-size number |
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@ -2012,7 +2011,7 @@ and to standard error the version information of xorriso. |
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@c man .br |
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@c man Incremental backup with accumulated trees |
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@c man .br |
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@c man Create bootable images for PC-BIOS |
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@c man Create bootable images for PC-BIOS and EFI |
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@c man .br |
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@cindex Examples |
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@menu |
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@ -2022,7 +2021,7 @@ and to standard error the version information of xorriso. |
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* ExGrowisofs:: Let xorriso work underneath growisofs |
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* ExIncBackup:: Incremental backup of a few directory trees |
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* ExIncBckAcc:: Incremental backup with accumulated trees |
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* ExBootable:: Create bootable images for PC-BIOS |
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* ExBootable:: Create bootable images for PC-BIOS and EFI |
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@end menu |
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@c man .SS |
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@c man .B A simple image production run |
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@ -2354,9 +2353,10 @@ but rather do this manually or by a program that reads from /dev/sr0. |
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With the third session, option -old-root refers to /session2. |
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The new -root is /session3. And so on. |
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@c man .SS |
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@c man .B Create bootable images for PC-BIOS |
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@c man .B Create bootable images for PC-BIOS and EFI |
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@node ExBootable, , ExIncBckAcc, Examples |
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@section Create bootable images for PC-BIOS |
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@section Create bootable images for PC-BIOS and EFI |
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The SYSLINUX/ISOLINUX boot loader suite is popular for booting PC-BIOS. |
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The ISOLINUX wiki prescribes to create on disk a directory ./CD_root and |
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to copy all desired files underneath that directory. Especially file |
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isolinux.bin shall be copied to ./CD_root/isolinux/isolinux.bin . |
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@ -2392,7 +2392,7 @@ at block 0. This facilitates later manipulations of the USB stick by |
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tools for partitioning and formatting. |
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@* |
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The image from the following example will be prepared for booting via MBR |
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and its first parttion will start at hard disk block 64. |
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and its first partition will start at hard disk block 64. |
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@* |
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It will also boot from optical media. |
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@* |
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@ -2430,6 +2430,63 @@ Now copy the image onto it |
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# dd bs=2K if=output.iso of=/dev/sdb |
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@* |
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@sp 1 |
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@c man .sp 1 |
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Now for EFI: |
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@* |
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The boot image file has to be the image of an EFI System Partition, |
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i.e. a FAT filesystem with directory /EFI/BOOT and boot files with |
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EFI prescribed names: BOOTIA32.EFI for 32 bit x86, |
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BOOTx64.EFI for 64 bit AMD/x86 (in UEFI-2.4 there is indeed a lower case "x"), |
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BOOTAA64.EFI for 64 bit ARM. The software in the FAT filesystem should be |
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able to find and inspect the ISO filesystem for boot loader configuration and |
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start of operating system. GRUB2 program grub-mkimage can produce such a |
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FAT filesystem with suitable content, which then uses further GRUB2 |
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software from the ISO filesystem. |
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@* |
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EFI boot equipment may be combined with above ISOLINUX isohybrid for PC-BIOS |
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in a not really UEFI-2.4 compliant way, which obviously works well. It yields |
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MBR and GPT partition tables, both with nested partitions. |
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Assumed the EFI System Partition image is ready as ./CD_root/boot/grub/efi.img, |
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add the following options before the directory address ./CD_root: |
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@* |
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@sp 1 |
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-eltorito-alt-boot -e 'boot/grub/efi.img' -no-emul-boot \ |
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@* |
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-isohybrid-gpt-basdat \ |
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@* |
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@sp 1 |
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More compliant with UEFI-2.4 is to decide for either MBR or GPT and to |
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append a copy of the EFI System Partition in order to avoid overlap of |
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ISO partition and EFI partition. Here for MBR: |
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@* |
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@sp 1 |
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-eltorito-alt-boot -e 'boot/grub/efi.img' -no-emul-boot \ |
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-append_partition 2 0xef ./CD_root/boot/grub/efi.img \ |
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@* |
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@sp 1 |
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The resulting ISOs are supposed to boot from optical media and USB stick. |
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One may omit option -eltorito-alt-boot if no option -b is used to make |
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the ISO bootable via PC-BIOS. |
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@* |
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@sp 1 |
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@c man .sp 1 |
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For ISOs with pure GRUB2 boot equipment consider to use GRUB2 tool |
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grub-mkrescue as frontend to xorrisofs. |
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@* |
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@sp 1 |
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@c man .sp 1 |
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If you have a bootable ISO filesystem and want to know its equipment plus |
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a proposal how to reproduce it, try: |
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@* |
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@sp 1 |
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$ xorriso -hfsplus on -indev IMAGE.iso \ |
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-report_el_torito plain -report_system_area plain \ |
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-print "" -print "======= Proposal for xorrisofs options:" \ |
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-report_el_torito as_mkisofs |
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@* |
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@sp 1 |
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@* |
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@sp 1 |
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@c man .SH FILES |
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@node Files, Seealso, Examples, Top |
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@chapter Files |
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