Linux users are very font of ISO files as this is the most common format that Linux distributions come in. You can use them as local repositories/media to update.
With the help of the following process, you can able to mount iso files in your local system or server.
Login via root:
Create one directory for mounting iso file
mkdir -p /mnt/mount_point
Use mount command as follows to mount iso file called iso_disk.iso:
Now you can find all file of iso in /mnt/mount_point directory
mount -o loop iso_disk.iso /mnt/mount_point