How to create an ISO from the terminal

Reading Hispanic Linux I remembered how useful it can be to use images de CD o DVD without having to burn them: we save the disk, we preserve the environment and we have a file that we can move however we want.

Create image for a DVD

We directly do:

dd if = / dev / dvd of = / home / user / Desktop / dvd.iso

Create image for a CD

dd if = / dev / cdrom of = / home / user / Desktop / cd.iso

Create image for a folder

If we have the data in a folder:

mkisofs -o /destination/cd.iso / folder_for_image

Remember that if in dd is the input stream, which in this case will be / dev / cd or / dev / dvd, but depending on the distribution and the team it could change to something like / dev / cdrom (with an ls in / dev you will find the precise data).

Source: Hispanic Linux