How to make a bootable ISO image from a bootable DVD?

I want to make a .iso image of a bootable OS DVD, to use in VirutalBox.

Nautilus can make a .iso, but only of data files, it seems.
The .iso it created was not bootable.

What is available to make a bootable .iso from a bootable DVD?

Solution 1:

You can use Brasero to copy a CD to an .iso; this is installed by default.

Select the option to copy a CD, select the CD drive as the source, and an image file as the target...

Or from inside Nautilus: go to "Computer", right-click on the CD drive, and select "Copy Disc...". (Or something like that, I'm using a local language system here.)

Solution 2:

First up, you can give VMs access to the host's DVD drive in VBox, this is done where you would normally add an ISO as a drive.

If this doesn't suit you, try ISO Master, available through apt/synaptic. It has some nice advanced features for ripping the boot sector out of existing DVD/CDs and adding that boot sector image to an ISO.

That said, ripping an image of the ISO with ISO Master should take the boot sector intact, and you won't need to transfer it manually.