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Merge pull request #3922 from giuseppe/add-note-failing-systemd-cgroups-v1

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docs: add note about failing rhel7 systemd on cgroups v2
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OpenShift Merge Robot
2019-09-02 10:55:05 -07:00
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commit 03344fff1c
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troubleshooting.md
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@ -391,3 +391,22 @@ Choose one of the following:
* Install and configure fuse-overlayfs.
* Install the fuse-overlayfs package for your Linux Distribution.
* Add `mount_program = "/usr/bin/fuse-overlayfs` under `[storage.options]` in your `~/.config/containers/storage.conf` file.
### 16) rhel7-init based images don't work with cgroups v2
The systemd version shipped in rhel7-init doesn't have support for cgroups v2. You'll need at least systemd 230.
#### Symptom
```console
sh# podman run --name test -d registry.access.redhat.com/rhel7-init:latest && sleep 10 && podman exec test systemctl status
c8567461948439bce72fad3076a91ececfb7b14d469bfa5fbc32c6403185beff
Failed to get D-Bus connection: Operation not permitted
Error: non zero exit code: 1: OCI runtime error
```
#### Solution
You'll need to either:
* configure the host to use cgroups v1
* update the image to use an updated version of systemd.