podman system df -v does not show shared sized

[josedom24]

Hi,

I am downloading two images that share two layers:

$ sudo podman pull quay.io/centos7/httpd-24-centos7:latest
Trying to pull quay.io/centos7/httpd-24-centos7:latest...
Getting image source signatures
Copying blob 8f001c8d7e00 done   | 
Copying blob c61d16cfe03e done   | 
Copying blob 06c7e4737942 done   | 
Copying config d7af31210b done   | 
Writing manifest to image destination
d7af31210b288164c319bae740ca1281528390a3c5cee657e95f243670b49e6a

$ sudo podman pull quay.io/centos7/httpd-24-centos7:20230712
Trying to pull quay.io/centos7/httpd-24-centos7:20230712...
Getting image source signatures
Copying blob c61d16cfe03e skipped: already exists  
Copying blob 06c7e4737942 skipped: already exists  
Copying blob cad88c5d6507 done   | 
Copying config 6211883c1e done   | 
Writing manifest to image destination
6211883c1ed7ec96a12bbc9b214e70e5af406361db435905e85ba88b1483645b

And when I go to display the occupied size and the shared size, the shared size appears at 0B:

REPOSITORY                        TAG         IMAGE ID      CREATED     SIZE        SHARED SIZE  UNIQUE SIZE  CONTAINERS
quay.io/centos7/httpd-24-centos7  latest      d7af31210b28  8 months    356.5MB     0B           356.5MB      0
quay.io/centos7/httpd-24-centos7  20230712    6211883c1ed7  8 months    356.5MB     0B           356.5MB      0

What can this be due to?
Thanks!!!

[baude]

what version of podman and how are you displaying the above image list ?

[josedom24]

Hi,
The podman version is 4.9.3

$ podman -v
podman version 4.9.3

And I show the list of images as follows:

$ sudo podman system df -v
Images space usage:

REPOSITORY                        TAG         IMAGE ID      CREATED     SIZE        SHARED SIZE  UNIQUE SIZE  CONTAINERS
quay.io/centos7/httpd-24-centos7  latest      d7af31210b28  8 months    356.5MB     0B           356.5MB      0
quay.io/centos7/httpd-24-centos7  20230712    6211883c1ed7  8 months    356.5MB     0B           356.5MB      0


Containers space usage:
...

Thank you

[ankit-4129]

any updates on this, I have observed the same thing, shared size is 0B as seen in podman system df -v, and podman system df seems to show the correct size.