

In the former attempt at using dd I had not required the need for sudo.Īfter following all of the answers above, only this method worked, which I found on Create an exact duplicate of a CD from the command line.įWIW, when trying to use hdiutil hybriddisk -iso -joliet -o ~/disk.iso /Volumes/RedHat_6_2 Note the use of sudo dd, without which I got a permissions error.
TOAST FOR MAC OS TIGER ISO
Which then produced an ISO file that I could then just double click to mount. Sudo dd if=/dev/disk2s0 of=~/RHDisk.iso bs=2048 Instead, I found that I had to specify the slice number, in addition to the disk number, i.e. When double clicking the resultant ISO file, the DiskImageMounter utility gave the following error message: Produced an ISO that was not, thereafter, mountable 1.
TOAST FOR MAC OS TIGER INSTALL
On Catalina, when trying to copy an old RedHat 6.2 install CD I found that using diskutil unmountDisk /dev/disk2 iso files are only readable but not writeable, and if one month later you issue a dd command that might overwrite an existing file, it actually will come back with a "Permission denied" error so that you won't overwrite that existing file. In addition, since dd can overwrite any existing file, so you might want to do chmod 444 *.iso so that all.

If you want a program that will copy the disc to the hard drive and also remove the copy protection so that you can burn it to a new unprotected disc, MacTheRipper will do that, but it looks like it hasn't been updated in a while. Nevertheless, you can play it using a program like VLC which doesn't need the keys, since it is able to circumvent the encryption.

So if you burn a new disc with this image it will not play on a standard DVD player.

But if the disc is copy protected, it contains decryption keys in the lead-in area of the disc which cannot be read directly, and are not part of the ISO image. As mentioned in other answers you can use Disk Utility or dd to create an ISO image of the original disc.
