ISOINFO(8)						      System Manager's Manual							ISOINFO(8)

NAME

       devdump, isoinfo, isovfy, isodump - Utility programs for dumping and verifying iso9660 images.

SYNOPSIS

       devdump isoimage

       isodump isoimage

       isoinfo [ -d ] [ -h ] [ -R ] [ -J ] [ -j charset ] [ -f ] [ -l ] [ -p ] [ -T sector ] [ -N sector ] [ -i isoimage ] [ -x path ]

       isovfy isoimage

DESCRIPTION

       devdump	is  a  crude utility to interactively display the contents of device or filesystem images.  The initial screen is a display of the
       first 256 bytes of the first 2048 byte sector.  The commands are the same as with isodump.

       isodump is a crude utility to interactively display the contents of iso9660 images in order to verify  directory  integrity.   The  initial
       screen is a display of the first part of the root directory, and the prompt shows you the extent number and offset in the extent.

	      You  can	use  the 'a' and 'b' commands to move backwards and forwards within the image. The 'g' command allows you to goto an arbi-
	      trary extent, and the 'f' command specifies a search string to be used. The '+' command searches forward for the	next  instance	of
	      the search string, and the 'q' command exits devdump or isodump.

       isoinfo is a utility to perform directory like listings of iso9660 images.

       isovfy is a utility to verify the integrity of an iso9660 image. Most of the tests in isovfy were added after bugs were discovered in early
       versions of mkisofs.  It isn't all that clear how useful this is anymore, but it doesn't hurt to have this around.

OPTIONS

       Only the isoinfo program has any command line options. These are:

       -h     print a summary of all options.

       -d     Print information from the primary volume descriptor (PVD) of the iso9660 image. This includes  information  about  Rock	Ridge  and
	      Joliet extensions if present.

       -f     generate	output	as  if	a  'find  . -print' command had been run on the iso9660 image. You should not use the -l image with the -f
	      option.

       -i iso_image
	      Specifies the path of the iso9660 image that we wish to examine.

       -l     generate output as if a 'ls -lR' command had been run on the iso9660 image.  You should not use the -f image with the -l option.

       -N sector
	      Quick hack to help examine single session disc files that are to be written to a multi-session disc. The sector number specified	is
	      the  sector  number  at  which the iso9660 image should be written when send to the cd-writer. Not used for the first session on the
	      disc.

       -p     Print path table information.

       -R     Extract information from Rock Ridge extensions (if present) for permissions, file names and ownerships.

       -J     Extract information from Joliet extensions (if present) for file names.

       -j charset
	      Convert Joliet file names (if present) to the supplied charset. See mkisofs(8) for details.

       -T sector
	      Quick hack to help examine multi-session images that have already been burned to a multi-session disc. The sector  number  specified
	      is the sector number for the start of the session we wish to display.

       -x pathname
	      Extract specified file to stdout.

AUTHOR

       Eric  Youngdale	<ericy@gnu.ai.mit.edu>	or <eric@andante.jic.com> is to blame for these shoddy hacks. Patches to improve general usability
       would be gladly accepted.

BUGS

       The user interface really sucks.

FUTURE IMPROVEMENTS

       These utilities are really quick hacks, which are very useful for debugging problems in mkisofs or in an iso9660 filesystem.  In  the  long
       run, it would be nice to have a daemon that would NFS export a iso9660 image.

       The isoinfo program is probably the program that is of the most use to the general user.

AVAILABILITY

       These  utilities  come with the mkisofs package, and the primary ftp site is tsx-11.mit.edu in /pub/linux/BETA/cdrom/mkisofs and many other
       mirror sites. Despite the name, the software is not beta.

SEE ALSO

       mkisofs(8)

Version 2.0							     02/12/24								ISOINFO(8)