Last Updated on July 10, 2024 by KC7NYR
Graphical Utilities
Of course you can always install and use graphical disc authoring software like GnomeBaker or K3b, but that’s outside the scope of this this article. I just want to show you how you can quickly create an ISO image without installing additional software.
Command Line
We’re going to use the command line tool dd tool for this. Insert the disc that you want to copy and open a terminal.
Create a Cdrom Image
Now in the terminal type:
$ sudo dd if=/dev/cdrom of=cd.iso
A little explanation
sudo
makes sure the command is executed as root. That’s needed only if the user you’re working under doesn’t have enough permissions to access the device. But it’s ignored if it’s not needed so you can just ignore it as well.dd
stands for Disk Dumpif
stands for Input Fileof
stands for Output File
Wait for the command to finish, and your new iso will be saved to cd.iso
.
Create a dvd Image
For a DVD image, your device is probably called /dev/dvd
instead of /dev/cdrom
so the command would look like this:
$ sudo dd if=/dev/dvd of=dvd.iso
Create a scsi cdrom image
For a SCSI CDROM image, your device is probably called /dev/scd0
instead of /dev/cdrom
so the command would look like this:
$ sudo dd if=/dev/scd0 of=cd.iso
Mounting an Image
Once you’ve created an ISO image you can mount it as if it was a normal disc device (loopback) device. This will give you access to the files in the ISO without you having to burn it to a disc first. For example if you wanted to mount cd.iso
to /mnt/isoimage
you would run the following commands:
$ mkdir -p /mnt/isoimage
$ mount -o loop -t iso9660 cd.iso /mnt/isoimage
Unmounting
To unmount a currently mounted volume, type:
$ umount -lf /mnt/isoimage
/mnt/isoimage
is the location of your mounted volume.
Source Credit: Kevin van Zonneveld
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