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97 lines
3.9 KiB
Plaintext
97 lines
3.9 KiB
Plaintext
CD-ROM Maker
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Philip J. Erdelsky
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The CDMAKE utility converts files from DOS/Windows format to ISO9660
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(CD-ROM) format.
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First, gather all the files to be converted and put them into a single
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base directory and its subdirectories, arranged just the way you want
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them on the CD-ROM. Remember that ISO9660 allows subdirectories to be
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nested only eight levels deep. Therefore, if the base directory is
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C:\CDROM,
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C:\CDROM\D2\D3\D4\D5\D6\D7\D8\FOO.TXT is permitted, but
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C:\CDROM\D2\D3\D4\D5\D6\D7\D8\D9\FOO.TXT is forbidden.
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Also, ISO9660 does not allow directories to have extensions, although
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DOS does.
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Finally, the characters in file and directory names and file extensions
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must be letters, digits or underscores. Other punctuation marks
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permitted by DOS/Windows are forbidden by ISO9660. You can use the -c
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option to override this restriction, but the resulting CD-ROM may not be
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readable on systems other than DOS/Windows.
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Files in the base directory will be written to the root directory of the
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CD-ROM image. All subdirectories of the base directory will appear as
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subdirectories of the root directory of the CD-ROM image. Their
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contents, and the contents of their subdirectories, down to the eighth
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level, will be faithfully copied to the CD-ROM image.
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System files will not be written to the CD-ROM image. Hidden files will
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be written to the CD-ROM image, and will retain their hidden attributes.
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Read-only files will be written, and will remain read-only on the
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CD-ROM, but this does not distinguish them in any way, because on a
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CD-ROM all files are read-only. The archive attribute will be lost.
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File and directory date and time stamps will be preserved in the CD-ROM
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image.
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The utility is called up by a command line of the following form:
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CDMAKE [-q] [-v] [-p] [-s N] [-m] [-j] [-b bootimage] source volume image
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source specifications of base directory containing all files to
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be written to CD-ROM image
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volume volume label
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image image file or device
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-q quiet mode - display nothing but error messages
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-v verbose mode - display file information as files are
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scanned and written - overrides -p option
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-p show progress while writing
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-s N abort operation before beginning write if image will be
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larger than N megabytes (i.e. 1024*1024*N bytes)
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-m accept punctuation marks other than underscores in
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names and extensions
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-j generates Joliet filename records
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-b bootimage create bootable ElTorito CD-ROM using 'no emulation' mode
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The utility makes three passes over the source files:
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(1) The scanning pass, in which the names and extensions are
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checked for validity, and the names, extensions, sizes, dates,
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times and attributes are recorded internally. The files are not
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actually read during this pass.
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(2) The layout pass, in which the sizes and positions of
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directories, files and other items in the CD-ROM image are
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determined.
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(3) The writing pass, in which the files are actually read and the
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CD-ROM image is actually written to the specified file or
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device. The image is always written sequentially.
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If neither the -q nor the -v option is used, CDMAKE will display the
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volume label, size, number of files and directories and the total bytes
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in each at the end of the layout pass.
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If the -p option is used, and is not overridden by the -v option, then
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during the writing pass, CDMAKE will display the number of bytes still
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to be written to the CD-ROM image, updating it frequently. The number
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will decrease as the operation progresses, and will reach zero when the
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operation is complete.
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The operation of CDMAKE can be aborted by typing Ctrl-C when the utility
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is displaying text of any kind.
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