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List:       macports-users
Subject:    Re: Hybrid CDs on Big Sur
From:       Andrew Udvare <audvare () gmail ! com>
Date:       2022-03-09 4:40:29
Message-ID: 0634D5AA-C3CA-4F3A-97EB-698946F72A17 () gmail ! com
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> On 2022-03-08, at 18:49, Sriranga Veeraraghavan <sriranga@berkeley.edu> wrote:
> 
> Hi,
> 
> I have some older CDs that appear to be master with a Mac (HFS/HFS+) partition and \
> a Windows (FAT32?) partition.   
> Under BigSur (on M1), Finder and DiskUtility only seem to want to mount the Mac \
> partition on these CDs and don't seem to provide a way to access the Windows \
> partition. 
> I've been able to access the Windows partition by running on Linux running under an \
> emulator, but this is somewhat clunky. 
> Does anyone know of a way (perhaps through a port in macports) to mount the Windows \
> partition on a hybrid CD? 
> TIA,
> 
> -ranga
> 
> 
> 

You should be able to use /sbin/mount_cd9660 to mount the area seen by Windows \
(ISO9660 with Joliet).

mkdir mount-point
sudo /sbin/mount_cd9660 -r /dev/... mount-point

To make an image:

dd if=/dev/... of=x.raw conv=notrunc bs=2048

Also try installing cdrtools and using the 'readcd dev=/dev/... -clone f=x.raw' \
command.

Both of these may result in a proper image that has the ISO9660 filesystem and the \
HFS. You should be able to mount the ISO9660 file system with the image with \
/sbin/mount_cd9660 just the same.=


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