Mount iso inside a container

General
1

Hi,

When I want mount a iso in my container I have this error :

mount: /media/iso/: mount failed: Unknown error -1

I use this command to mount :

 mount -o loop iso.iso /media/iso/

The containers run with the lastest debian version.

2

No one can help ? :open_mouth:

3

I have the same thing as you

4

Hello,

Sorry for the silly question but the target directory exists ?
I am having the same problem -
mount -o loop /usr/Spectrum/custom/ISO/rhel-server-7.5-x86_64-dvd.iso /media/
mount: /usr/Spectrum/custom/ISO/rhel-server-7.5-x86_64-dvd.iso: failed to setup loop device: No such file or directory

The dev/sys loop stuff is where the problem is, but I have not yet found a solution either.

DonL

5

Yes, the first thing I’d check is “is the mount accessible”. So just mount and “cd” into it.
To access it from inside of a container you’ll need a volume attached. Assuming the iso is mounted to /media/iso, your Docker cmd would look something like this: “docker run -v /media/iso:/media/iso …”
Bare in mind that the OS inside the container also needs the /media/iso directory present … if not, create it or choose a different path.

6

Old post, but I struggled to find a working solution.

  • docker run –privileged --rm -it -v .:/isos mycontainer:dev
  • losetup -f --show /isos/my_image.iso
  • mkdir -p /mnt/tmp
  • mount -o loop /isos/my_image.iso /mnt/tmp

and before exiting (just to leave everything’s clean):

  • umount /mnt/tmp
  • losetup -d /dev/loop0
  • exit

Hoping it works not only for me :slight_smile: