Hello Percon,
Please read carefully the recommendations on Guest OS installation in
Parallels Desktop User Guide For Mac, p. 75.
Using ISO image is supposed to be a more reliable way.
To make an ISO image of the CD-ROM, do the following:
1. In the Finder, browse to Macintosh HD - Applications - Utilities. Choose Disk Utility.
2. Insert the source CD-ROM, the image of which you want to create, into the CD/DVD-ROM drive of Macintosh computer.
3. Select the CD/DVD-ROM drive from the Disk Utility device list.
4. Click the New Image button on the top of the Disk Utility window.
5. Specify the name and location for the image or leave the default settings.
6. Set Image Format to read-only.
7. Click Save and wait till the image creation process is complete.
Now you can connect this image to the virtual machine’s CD/DVD-ROM drive:
1. Launch Parallels Desktop.
2. Click the CD/DVD-ROM icon in the main Configuration window to open the CD/DVD-ROM drive’s settings.
3. Select the Use image file option and click Browse to locate the ISO image file.
You can use a successfully created image file as a bootable media for the guest OS installation instead of a real CD.
Best regards,
Xenos
