Open a terminal screen (console).
Just to be on the safe side, verify if it is mounted or not with the mount command.
sh-4.1# mount
If CD is reported as mounted (maybe it was automatically by the OS), use the umount command.
sh-4.1# umount /dev/sr0
or
sh-4.1# umount /mnt/sr0
Create the ISO image with the dd command.
sh-4.1# dd if=/dev/sr0 of=/mnt/home/image.iso
Where,
- if=/dev/sr0 : Read from /dev/sr0 (raw format)
- of=/mnt/home/image.iso : write to a file named image.iso
