I am on Ubuntu 14.04.I am trying to copy install.jar file to iso image file.Any ideas?

You might want to extract your .iso and then copy install.jar file to it and then create iso again. Here is something you might find useful on creating the iso again after embedding install.jar in it: http://askubuntu.com/questions/13616...ate-iso-images

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Still I do not get it.
I have in home/mil/2014a/MATLAB R2014a Unix.iso MATLAB.Should I copy the whole MATLAB R2014a Unix.iso then try to make changes in java ?

Let me put it sequential:

1. Extract your iso using the steps mentioned here: http://www.makeuseof.com/tag/extract-iso-files-linux/
2. Copy install.jar in extracted directory (where you have extracted your iso)
3. Build your iso again using the steps mentioned here: http://askubuntu.com/questions/13616...ate-iso-images

In step 3 you will be creating iso image from the directory which contains iso extracted files and install.jar

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Might be running out of space on that iso image but if you have enough then the above idea is basically what you asked about.

Other ideas may be to create a custom install cd with some tool or app or build online like found at SuseStudio.

Other idea may be to create a new track on the disc for this extra info.

Can usually just bring a second disc or usb too.

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I have problems with mounting iso file.
milenko@milenko-HP-Compaq-6830s:~/2014a$ sudo mount -o loop MATLAB\ R2014a\ Unix.iso /mnt/iso/
mount: block device /home/milenko/2014a/MATLAB R2014a Unix.iso is write-protected, mounting read-only
mount: you must specify the filesystem type
milenko@milenko-HP-Compaq-6830s:~/2014a$ sudo mount -t iso9660 MATLAB\ R2014a\ Unix.iso /mnt/iso/
mount: block device /home/milenko/2014a/MATLAB R2014a Unix.iso is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/loop1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

Can you mount other iso images or iso cd/dvd's? Check you have module or kernel has iso9660 support. Try 'modprobe iso9660' and then lsmod | grep iso9660'.

Check dmesg output if the kernel has builtin iso9660 support.

Are you sure the image file you are trying to mount is indeed a iso9660 image?

May be the file is corrupted.

You un-roll the iso to a folder to modify it usually then wrap it back up. Not sure making a loop device would allow you to edit the iso.

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But how to un-roll it?

You may try using the cdrecord utilities: 'isodump', 'isovfy', 'isoinfo'.

Or, if you have got a windows box then you can download Winrar and extract the ISO using it.

Well,I have tried this:
Actually the file zip format,I do not know if that matters.

What this means?

So it says the iso file is not in standard iso9660 format and also it causes short read of file. This may explain why it's not mounting.

Run:

Post what it produces.

It is a zip file.