ComTech: IT Support Stirling

How to make an ISO file from a CD / DVD using Linux

Something a little bit different today.  I am going to show you how to make an ISO file from a CD / DVD using Linux.  This is very useful when you lose the CD you are after and need to burn a new copy.

For the purpose of this tutorial I will be using Linux Mint 13 and a Linux Mint 11 Live CD but the commands are identical on most major distributions.

The first thing to do is insert the CD in the drive.  Now we have to find the mount point for the CD so type:

sudo mount -l


chris@chris-mint13 ~ $ sudo mount -l
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/sr0 on /media/Linux Mint 11 Katya 32-bit type iso9660 (ro,nosuid,nodev,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500,uhelper=udisks) [Linux Mint 11 Katya 32-bit]


From the output above my CD drive is mounted at /dev/sr0.  Now we need to unmount it so type:

sudo umount /dev/sr0

Now we need to use the dd command so type:

dd if=/dev/sr0 of=/home/chris/Mint11.iso


/dev/sr0 is the CD mount point and /home/chris/Mint11.iso is the location to save the ISO file.

This will then make an ISO file of your CD.

About the Author


Hi I’m Chris Wakefield the owner of ComTech IT Support. I provide Windows, Mac and Linux based IT Support to small businesses in Stirling, Alloa and Falkirk.

Follow @Comtech247 on Twitter



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