Date: Fri, 31 May 1996 20:30:15 +0200 (SAT) From: Robert Nordier <rnordier@iafrica.com> To: dwhite@resnet.uoregon.edu Cc: questions@freebsd.org Subject: Re: Cannot mount CD Message-ID: <199605311830.UAA00499@eac.iafrica.com> In-Reply-To: <Pine.BSF.3.91.960531100440.11891A-100000@riley-net170-164.uoregon.edu> from "Doug White" at May 31, 96 10:06:03 am
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Doug White wrote: > > On Fri, 31 May 1996, Gabor Zahemszky wrote: > > > Last night I'd like to mount > > ``MINDSCAPE U.S. ATLAS & ALMANAC (Version 6)'' > > I mounted it, as usual (mount -t cd9660 -r /dev/scd0 /cdrom) > > Mount was OK. cd /cdrom -> /cdrom not a directory. > > ??? It was mounted, but it was only a 2048 byte file. In it, there was > > the root dir of that (Windows/W95) CD. > > My guess would be that this isn't a real CD. Some CDs are written in a > portable format so they can sell it for PCs and Macs without having to > press two different CDs. If it's only this CD, and everything else > works OK, then I'd say that this is the case, or something similar. > > Just a guess. As I understand it, the point of ISO-9660 is that it can be different things to different operating systems. (It has a volume descriptor which can hold a whole lot of different OS-related entries, giving alternative parameters.) This probably doesn't make it less of a 'real' CD -- unless Real CDs Don't Speak Mac; or Real CDs Don't Speak PC. :) But Doug may be right: this particular CD might not pass its fsck_9660, if there were such a thing. -- Robert Nordier
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