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New option -split_size, automated splitting of oversized files

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Thomas Schmitt
2008-03-29 16:44:39 +00:00
parent 9eaa268b26
commit 120ea0972c
7 changed files with 194 additions and 28 deletions
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16
libisoburn/trunk/xorriso/xorriso.1
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@ -590,8 +590,8 @@ inherited from cp -r behavior. Its syntax resembles cp, though.
Map a byte interval of a regular disk file into a regular file in the ISO
image.
This may be necessary if the disk file is larger than a single media, or if
it exceeds the traditional limit of 2 GiB - 2 kiB for old operating systems,
or the limit of 4 GiB - 2 kiB for newer ones.
it exceeds the traditional limit of 2 GiB - 1 for old operating systems,
or the limit of 4 GiB - 1 for newer ones.
.br
A clumsy remedy for this limit is to backup file pieces and to concatenate
them at restore time. A well tested chopping size is 2047m.
@ -621,7 +621,7 @@ A disk file gets mapped to an ISO directory containing its split parts
as regular files. The parts have names which describe the splitting
by 5 numbers which are separated by some non-numerical text:
.br
part_number, total_parts, byte_offset, byte_count, disk_path_size
part_number, total_parts, byte_offset, byte_count, disk_file_size
.br
Scaling characters like "m" or "k" are taken into respect and may
serve as separators as well. All digits are interpreted as decimal,
@ -988,6 +988,16 @@ existing file types get treated with -rm before the new file gets added.
Setting "on" allows automatic -rm_r. I.e. a non-directory can replace an
existing directory and all its subordinates.
.TP
\fB\-split_size\fR number["k"|"m"]
Set the threshold for automatic splitting of regular files. Such splitting
maps a large disk file onto a ISO directory with several part files in it.
This is necessary if the size of the disk file exceeds 4 GiB - 1.
Older operating systems can handle files only if they are 2 GiB - 1.
See also option -cut_out for more information about file parts.
.br
Default is 0 which will exclude files >= 4 GiB by a FAILURE event.
A well tested -split_size is 2047m. Sizes of 4 GiB or more are not permissible.
.TP
.B Settings for result writing:
.TP
Rock Ridge info will be generated by the program unconditionally.