[NTLUG:Discuss] OT: Fry's

[Joel Sinor]

So if I have an iso, and I want to modify it, I will actually need to
mount it, then copy the files off, then use mkisofs to make a new one? 
I suppose that is reasonable.  I recently learned how to make iso images
in linux, but when I tried a command similar to yours I got errors about
the "device not found" or something and thought  I probably did
something wrong configuring the kernel.
I tried it the way you said and it worked fine.
And you were right, even without the -r flag it is read-only. Oh, well.
:)

On Fri, 02 May 2003 09:15:04 -0500
David <david at hayes-family.org> wrote:

> On Thu, May 01, 2003 at 03:51:57PM -0500, Joel Sinor wrote:
> > cdr is being emulated.  I also have not found the proper
> > instructions for using the loopback filesystem to mount an iso image
> > so it can be modified on the fly, but this is something else you can
> > do on Linux (and actually something similar can be done on MacOS
> > using included tools, diskcopy IIRC) and not in Windows, and
> > definitely something I will be working on.
> 
> To mount an ISO image on hard disk so that it can be read, try this:
> 
>    # mount -r -o loop /path/to/iso/image.iso /mount/point
> 
> "/mount/point" can be any empty directory.  I create "/mnt/tmp" and
> keep it handy for just this purpose.
> 
> You cannot modify an ISO image on the fly.  The Linux kernel knows how
> to read ISOs, not how to create them.  For that, you use the
> command-line utility "mkisofs".  This utility is also what's used
> under the covers when you use one of the GUI tools.
> 
> The ISO file structure was never designed to be modified, but there is
> an alternative:  UDF.  This is the file system used for DVD disks.
> Newer Linux kernels have a UDF driver, but I have not worked with it.
> 
> -- 
> David Hayes
> david at hayes-family.org
> 
> _______________________________________________
> https://ntlug.org/mailman/listinfo/discuss