Joliet Rockridge ISO9660 CDROM

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From: tangent@cyberport.com (Warren Young)
Newsgroups: comp.unix.sco.misc
Subject: Re: Making Unix files on CD-RW readable to Unix?
Date: Sat, 19 Jun 1999 12:04:30 GMT
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John Phillips <jphillip@onyx.southwind.net> wrote:

>KG <akg@cwixmail.com> wrote:
>> but when I copy the files onto the CD exactly the way they came off the
>> original cd's, when I try to install them using SCO Openserver 5.02's
>> Software Manager, it won't do it because it says "unrecognizable file
>> format" and cannot read the cd.  I still have the files as originally
>
>The cd's you created with the CD-RW drive are probably not ISO-9660
>format.  They are probably Micro-$'s Joliet format.  Snail mail them
>to  me and I will re-copy them to ISO-9660 format.

Actually, Joliet _is_ ISO9660, but with extensions.  What's more
likely is that the CD needs to have the Rock Ridge extensions instead.
Both extensions serve much the same purpose: to add modern filesystem
features like long file names to the DOS-oriented ISO9660 standard.
They just achieve this in different ways, and the standards don't have
a fully overlapping feature set anyway.  Rock Ridge, for example,
supports symlinks, whereas MICROS~1 can't even spell symlink.

If there are TRANS.TBL files in each of the CD's directories, you know
the original disk was created with the Rock Ridge extensions.  IIRC,
Adaptec Easy CD Creator doesn't support that.  You may need to grab
and use the mkisofs tool (they should work under OpenServer, but no
guarantees) to create an appropriate ISO image that you can write to a
new CD-R.  See ftp://tsx-11.mit.edu/pub/linux/packages/mkisofs for
this tool.

Alternatively, the Adaptec software can read a pure ISO image from an
existing CD and then write it back out without diddling with the data.
That may work best of all.

Good luck,

= Warren -- http://www.cyberport.com/~tangent/

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