Importing multiple container images with podman bundled into the same archive fails with 'Error determining manifest MIME type'

Solution Verified - Updated -

Issue

Importing multiple container images with podman bundled into the same archive fails with 'Error determining manifest MIME type'

Install docker from the docker-ce.repo:

# yum config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
# yum install docker-ce -y
# systemctl enable --now docker

Note: Installing and using 3rd party repositories is not supported.

Pull various images:

# docker pull alpine
# docker pull alpine/socat
# docker pull alpine/git

Save the alpine image into a tar archive:

# docker save alpine > alpine.tar
# tar -tf alpine.tar 
6709f754bd0ccbbea9a7481e92772a494cca1543b3421978edff62bc5de16662/
6709f754bd0ccbbea9a7481e92772a494cca1543b3421978edff62bc5de16662/VERSION
6709f754bd0ccbbea9a7481e92772a494cca1543b3421978edff62bc5de16662/json
6709f754bd0ccbbea9a7481e92772a494cca1543b3421978edff62bc5de16662/layer.tar
d6e46aa2470df1d32034c6707c8041158b652f38d2a9ae3d7ad7e7532d22ebe0.json
manifest.json
repositories

Save the other 2 alpine images into a single tar archive:

# docker save alpine/git alpine/socat > alpines.tar
# tar -tf alpines.tar
34ffd0a66ab42fc4e7df94feb76cf4a1a24e7bf0d5ec3c248447e2a2261be60a/
34ffd0a66ab42fc4e7df94feb76cf4a1a24e7bf0d5ec3c248447e2a2261be60a/VERSION
34ffd0a66ab42fc4e7df94feb76cf4a1a24e7bf0d5ec3c248447e2a2261be60a/json
34ffd0a66ab42fc4e7df94feb76cf4a1a24e7bf0d5ec3c248447e2a2261be60a/layer.tar
41c04c1ad3a4c864544b6eba886953cfef99c2d9258d8d8710cd23fe58d63a1d/
41c04c1ad3a4c864544b6eba886953cfef99c2d9258d8d8710cd23fe58d63a1d/VERSION
41c04c1ad3a4c864544b6eba886953cfef99c2d9258d8d8710cd23fe58d63a1d/json
41c04c1ad3a4c864544b6eba886953cfef99c2d9258d8d8710cd23fe58d63a1d/layer.tar
5d7d6ca82beb0f029a15ec4013e4d2c8a0ae9ecae2f11eb763e54945b8b7ab7c.json
a8b6c5c0eb622fe4252b425dce65ac9117ddd45103116b6ca05fe6196bfa97b8.json
bb0bde00bb31ec54766f0755b22e46e356eff25f81696b2102dcfff80ee27a2c/
bb0bde00bb31ec54766f0755b22e46e356eff25f81696b2102dcfff80ee27a2c/VERSION
bb0bde00bb31ec54766f0755b22e46e356eff25f81696b2102dcfff80ee27a2c/json
bb0bde00bb31ec54766f0755b22e46e356eff25f81696b2102dcfff80ee27a2c/layer.tar
bde6811158187d1a499ef57c5c3f5de5e246c1b926ade7c1389131085e1c3986/
bde6811158187d1a499ef57c5c3f5de5e246c1b926ade7c1389131085e1c3986/VERSION
bde6811158187d1a499ef57c5c3f5de5e246c1b926ade7c1389131085e1c3986/json
bde6811158187d1a499ef57c5c3f5de5e246c1b926ade7c1389131085e1c3986/layer.tar
f8968968e46a9aa54fe067c4066a67a51c62026f7ca956e6fd911cfb0ef31a76/
f8968968e46a9aa54fe067c4066a67a51c62026f7ca956e6fd911cfb0ef31a76/VERSION
f8968968e46a9aa54fe067c4066a67a51c62026f7ca956e6fd911cfb0ef31a76/json
f8968968e46a9aa54fe067c4066a67a51c62026f7ca956e6fd911cfb0ef31a76/layer.tar
manifest.json
repositories

Remove docker and dependencies as containerd will conflict with runc:

yum remove docker-ce -y
rm -f /etc/yum.repos.d/docker-ce.repo

Install podman:

yum install podman -y

The following works:

# podman load < alpine.tar        # or podman load -i alpine.tar
Getting image source signatures
Copying blob ace0eda3e3be done  
Copying config d6e46aa247 done  
Writing manifest to image destination
Storing signatures
Loaded image(s): localhost/alpine:latest
[root@nfs-client ~]# podman images
REPOSITORY        TAG     IMAGE ID      CREATED      SIZE
localhost/alpine  latest  d6e46aa2470d  3 weeks ago  5.85 MB

The following does not work:

# podman load < alpines.tar      # or podman load -i alpines.tar
  Unexpected tar manifest.json: expected 1 item, got 2
  open /var/tmp/podman838619494/manifest.json: not a directory
Error: error pulling "": unable to pull dir:/var/tmp/podman838619494: Error determining manifest MIME type for dir:/var/tmp/podman838619494: open /var/tmp/podman838619494/manifest.json: not a directory

Environment

Red Hat Enterprise Linux 8.0
Red Hat Enterprise Linux 8.1
Red Hat Enterprise Linux 8.2
Red Hat Enterprise Linux 8.3

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