NAME

       mkimage - Create an ISO image from jigdo files

SYNOPSIS

       mkimage -j igdo -t emplate [options]...

       mkimage -t emplate -z [options]...

       mkimage -f d5-list -t emplate -M issing-list [options]...

DESCRIPTION

       mkimage  knows  how to parse a jigdo template file, commonly used when creating Debian CDs
       and DVDs. It can be used to actually convert a template file and associated files into  an
       ISO  image  (hence  the  name  mkimage),  or with some command line options it will output
       useful information about the template file instead.

       -t template file
              The jigdo .template file is the most important thing that mkimage needs,  and  must
              be specified for all operations.

       -j jigdo file
              The  jigdo  .jigdo  file  will normally acompany the .template file. To rebuild the
              image you must specify at least one of the jigdo file and an MD5 file (-f).

       -f MD5 file
              A file listing files available locally and their MD5 sums, in the  same  format  as
              used by genisoimage:

         MD5sum   File size  Path
         32 chars 12 chars   to end of line

       The  MD5sum  must be written in standard hexadecimal notation, the file size must list the
       size of the file in bytes, and the path must list the  absolute  path  to  the  file.  For
       example:

       00006dcd58ff0756c36d2efae21be376         14736  /mirror/debian/file1
       000635c69b254a1be8badcec3a8d05c1        211822  /mirror/debian/file2
       00083436a3899a09633fc1026ef1e66e         22762  /mirror/debian/file3

       To rebuild an image you must specify at least one of the MD5 file and a jigdo file (-j).

       -m item=path
              Used  in  conjunction  with  a jigdo file; specify where mkimage should look on the
              local  filesystem  to  find  the  files  it  needs  to   make   an   image.   (e.g.
              "Debian=/mirror/debian").

       -M missing file
              If you're not sure if you have all the files needs to create an image, specify both
              the jigdo file and an MD5 file along with the template file and -M <file>.  mkimage
              will  check  to see that all the files are available instead of building the image.
              Any files that are missing will be listed in the file specified here. See jigit for
              usage examples.

       -v     Make mkimage more verbose. Additional -v arguments will make it more verbose again.
              Default level is 0 (almost no output). 1 will print progress in % while  the  image
              is  being  created;  2  will list every file and data block that is appended to the
              image.

       -l logfile
              mkimage will normally write to stderr when it reports progress. Specify  a  logfile
              (or /dev/null) if you want it elsewhere.

       -O     Skip  checking  the  validity of specified jigdo files. mkimage will normally check
              for the "JigsawDownload" header as a sanity check, but some very  old  jigdo  files
              produced by Debian pre-dated the addition of this header.

       -o outfile
              mkimage will normally write the ISO image to stdout, ready for piping into cdrecord
              or to iso-image.pl. Specify an output filename if  you  want  it  written  to  disk
              instead.

       -q     mkimage will normally check the MD5 sum of every file it reads and writes, and will
              fail if it finds any mismatches. Specify -q to tell it not to. This  will  normally
              run  more  quickly,  but  can  leave  you  with  a  broken  image so is POTENTIALLY
              DANGEROUS. Use with care!

       -s start offset
              Rather than start at the beginning of the image, skip to the specified  offset  and
              start  output there. Probably only useful in iso-image.pl when resuming a download.
              Specifying a non-zero offset also implies -q, as it's difficult to check  MD5  sums
              when you're not checking the whole image.  -e end offset Rather than end at the end
              of the image, stop at the specified offset. Probably only  useful  in  iso-image.pl
              when  resuming  a  download.  Specifying  an  end  offset  also implies -q, as it's
              difficult to check MD5 sums when you're not checking the whole image.

       -z     Simply parse the template file and print the  size  of  the  image  that  would  be
              generated,  in  bytes.  Only  needs  the  template  file to be specified, any other
              arguments will ignored.

EXAMPLES

       mkimage -f MD5 -j test.jigdo -t test.template -M missing
              Read in the files MD5, test.jigdo and test.template and check  if  all  the  needed
              files are available. If any are missing, list them in missing.

       mkimage -z -t test.template
              Find out how big the ISO image would be from expanding test.template.

       mkimage -v -f MD5 -t test.template -o test.iso
              Build the iso image in test.iso, using files listed in MD5 to fill in what's needed
              by the template file test.template. Show progress as the image is built.

SEE ALSO

       jigdo-file(1), jigit(1), jigsum(1) and jigdump(1).

COPYRIGHT

       Copyright 2004 Steve McIntyre (steve@einval.com)

       mkimage may be copied under the terms and conditions of  version  2  of  the  GNU  General
       Public License, as published by the Free Software Foundation (Cambridge, MA, USA).

AUTHOR

       Written by Steve McIntyre (steve@einval.com)