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New command -extract_boot_images

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Thomas Schmitt
2020-12-05 09:53:59 +01:00
parent e97cd48ee0
commit 47be075c45
16 changed files with 647 additions and 131 deletions
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xorriso/xorriso.texi
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@ -50,7 +50,7 @@
@c man .\" First parameter, NAME, should be all caps
@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 .TH XORRISO 1 "Version 1.5.3, Nov 20, 2020"
@c man .TH XORRISO 1 "Version 1.5.3, Nov 30, 2020"
@c man .\" Please adjust this date whenever revising the manpage.
@c man .\"
@c man .\" Some roff macros, for reference:
@ -5893,6 +5893,45 @@ word are used as arguments with the program start. Example:
The further parameters in all modes are the iso_rr_paths of data files.
Their content gets concatenated in the copy.
@c man .TP
@item -extract_boot_images disk_path
@kindex -extract_boot_images copies boot equipment to disk
@cindex Restore, copy boot equipment to disk, -extract_boot_images
Copy boot equipment to disk, which is not necessarily represented as data files
in the ISO filesystem. The data get written into various files in a disk
directory, which may already exist or of which the parent must exist so that
it can get created.
@*
Files may be missing if their corresponding information is
not present in the ISO filesystem. Existing files do not get overwritten but
rather cause a failure event.
@*
The same data may appear in different files. E.g. the El Torito boot image for
EFI is often the same data as the EFI partition in MBR or GPT.
@*
File "eltorito_catalog.img" contains the El Torito Boot Catalog.
@*
Files "eltorito_img*_*.img" contain El Torito Boot images. The first "*" gives
the image number, the second "*" gives the type: "bios", "mac", "ppc", "uefi",
or a hex number.
@*
File "mbr_code_isohybrid.img" contains the ISOLINUX MBR template.
@*
File "mbr_code_grub2.img" contains the GRUB2 MBR template.
@*
File "systemarea.img" contains the whole 32 KiB of System Area if not all zero.
@*
Files "mbr_part*_efi.img" contain EFI partition images from the MBR partition
table. The "*" text part gives the partition number.
@*
Files "mbr_part*_prep.img" contain PReP partition images.
@*
Files "gpt_part*_efi.img" contain EFI partition images from GPT.
@*
Files "gpt_part*_hfsplus.img" contain HFS+ partition images from GPT.
To avoid extracting the whole HFS+ aspect of hybrid ISO filesystems, the
partition image is extracted only if it has less than half of the size of
the ISO filesystem or if the partition is outside the ISO filesystem.
@c man .TP
@item -mount drive entity id path
@kindex -mount issues mount command for ISO session
@cindex Session, issue mount command, -mount