ISOINFO(8)ISOINFO(8)NAME
devdump, isoinfo, isovfy, isodump - Utility programs for
dumping and verifying iso9660 images.
SYNOPSISdevdump isoimage
isodump isoimage
isoinfo [ -d ] [ -h ] [ -R ] [ -J ] [ -j charset ] [ -f ]
[ -l ] [ -p ] [ -T sector ] [ -N sector ] [ -i isoimage ]
[ -x path ]
isovfy isoimage
DESCRIPTIONdevdump 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 iso-
dump.
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 back-
wards and forwards within the image. The 'g' com-
mand allows you to goto an arbitrary 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 descrip-
tor (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 owner-
ships.
-J Extract information from Joliet extensions (if pre-
sent) for file names.
-j charset
Convert Joliet file names (if present) to the sup-
plied 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 dis-
play.
-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 ALSOmkisofs(8)Version 2.0 02/12/24 ISOINFO(8)