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Creating iso image in freebsd
In order to write data to a CD, you first need to create an ISO image. This can be done with mkisofs. In my example, we'll work from the /home/recording directory. In this directory, I created a subdirectory called files. Here is what it contains: # ls -l files total 5280 -rw-r--r-- 1 root wheel 2174400 Dec 12 10:56 freebsddiary.tif -rw-r--r-- 1 root wheel 2239494 Dec 12 10:57 freshports.tgz -rw-r--r-- 1 root wheel 956533 Dec 12 10:56 mycvs.tgz From these files, I will create an ISO image: # mkisofs -J -L -R -o cdimage.raw files Total translation table size: 0 Total rockridge attributes bytes: 471 Total directory bytes: 0 Path table size(bytes): 10 Max brk space used a164 2649 extents written (5 Mb) Thanks to mikem for helping me with the following options. I use these on each CD I write. Note: if you don't use the -J option, you may have problems if you use the CD under Windows (I know, my first CDR didn't use this option). -J Generate Joliet directory records in addition to regular iso9660 file names. This is primarily use- ful when the discs are to be used on Windows-NT or Windows-95 machines. The Joliet filenames are specified in Unicode and each path component can be up to 64 Unicode characters long. -L Allow ISO9660 filenames to begin with a period. Usually, a leading dot is replaced with an under- score in order to maintain MS-DOS compatibility. This violates the ISO9660 standard, but it happens to work on many systems. Use with caution. -P publisher_id Specifies a text string that will be written into the volume header. This should describe the pub- lisher of the CDROM, usually with a mailing address and phone number. There is space on the disc for 128 characters of information. This parameter can also be set in the file .mkisofsrc with PUBL=. If specified in both places, the command line version is used. -p preparer_id Specifies a text string that will be written into the volume header. This should describe the pre- parer of the CDROM, usually with a mailing address and phone number. There is space on the disc for 128 characters of information. This parameter can also be set in the file .mkisofsrc with PREP=. If specified in both places, the command line version is used.
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