An ISO image is an archive file (disk image) of an optical disc using a conventional ISO (International Organization for Standardization) format. ISO image files typically have a file extension of .ISO. The name "ISO" is taken from the ISO 9660 file system used with CD-ROM media, but an ISO image can also contain UDF file system because UDF is backward-compatible to ISO 9660.
You can mount an ISO images via the loop device under Linux. It is possible to specify transfer functions (for encryption/decryption or other purposes) using loop device.
$ su -
2) Create the directory i.e. mount point:
# mkdir -p /mnt/disk
3) Use mount command as follows to mount iso file called disk1.iso:
# mount -o loop disk1.iso /mnt/disk
To mount the ISO image file.iso to the mount point /mnt/test use this command:
mount -o loop -t iso9660 file.iso /mnt/disk
Syntax: # mount ISOFILE MOUNT-POINT -o loop
$ su - # mkdir /tmp/mnt # mount -o loop /downloads/ubuntu-9.04-desktop-i386.iso /tmp/mnt # cd /tmp/mnt # ls -l
4) Change directory to list files stored inside an ISO image:
# cd /mnt/disk
# ls -l
Mount a CD ISO ImageWe'll use the regular mount command to mount the ISO image into a folder, just like you would do with a regular drive. The difference is that we pass the -o loop command to specify the loop module, which can handle ISO images.
$sudo mount filename.iso /media/iso -t iso9660 -o loop
Of course you should make sure that you have created the /media/iso folder ahead of time.
Mount a DVD ISO ImageWhen mounting ISO images of DVDs, you might have to use the UDF type instead of ISO.
$sudo mount filename.iso /media/iso -t udf -o loop