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More details,</div>
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Docker runs in Centos7.9.2009 (Core)</div>
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Docker is installed through yum and managed by systemd</div>
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Docker version is 19.03.15, build 99e3ed8</div>
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I get the `<span style="font-family:Consolas, Courier, monospace;background-color:rgb(255, 255, 255);display:inline !important">systemd[1]: Failed to reset devices.list` </span><span style="font-family: Calibri, Helvetica, sans-serif; background-color: rgb(255, 255, 255); display: inline !important;">message
when I run `</span><span style="font-family: Consolas, Courier, monospace; background-color: rgb(255, 255, 255); display: inline !important;">systemctl start slurmd`</span><span style="font-family: Calibri, Helvetica, sans-serif; background-color: rgb(255, 255, 255); display: inline !important;">
inside the container.</span></div>
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<span style="font-family: Calibri, Helvetica, sans-serif; background-color: rgb(255, 255, 255); display: inline !important;">thank you</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> masber masber<br>
<b>Sent:</b> Friday, 25 March 2022 12:52<br>
<b>To:</b> systemd-devel@lists.freedesktop.org <systemd-devel@lists.freedesktop.org><br>
<b>Subject:</b> learning how to run systemd in a container, journal shows errors I would like to understand what they mean and why</font>
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Dear Systemd community,</div>
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this is the devel list so I am not sure whether I should be emailing here for community support/advice, please forgive mr otherwise and point me to the right direction.
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I am not an expert by any means in container technology or systemd but trying to learn.</div>
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I have a k8s cluster with docker as container runtime and am I trying to make systemd to work. I read this doc
<a href="https://developers.redhat.com/blog/2016/09/13/running-systemd-in-a-non-privileged-container#enter_oci_hooks" id="LPlnkOWALinkPreview_1">
https://developers.redhat.com/blog/2016/09/13/running-systemd-in-a-non-privileged-container#enter_oci_hooks</a> and I have systemd running in a container.</div>
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<span style="font-family:Consolas,Courier,monospace">[root@nid001002-cluster-1 tmp]# ps aux</span>
<div><span style="font-family:Consolas,Courier,monospace">USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND</span></div>
<div><span style="font-family:Consolas,Courier,monospace">root 1 0.0 0.0 43204 3340 ? Ss 11:11 0:00 /usr/lib/systemd/systemd --system</span></div>
<div><span style="font-family:Consolas,Courier,monospace">root 17 0.0 0.0 39060 5224 ? Ss 11:11 0:00 /usr/lib/systemd/systemd-journald</span></div>
<div><span style="font-family:Consolas,Courier,monospace">dbus 23 0.0 0.0 58088 2112 ? Ss 11:11 0:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation</span></div>
<div><span style="font-family:Consolas,Courier,monospace">root 25 0.0 0.0 112984 4312 ? Ss 11:11 0:00 /usr/sbin/sshd -D</span></div>
<div><span style="font-family:Consolas,Courier,monospace">root 78 0.0 0.0 11828 1968 pts/0 Ss 11:24 0:00 bash</span></div>
<div><span style="font-family:Consolas,Courier,monospace">root 104 0.0 0.0 147676 3684 ? Ss 11:24 0:00 /usr/sbin/slurmd -D</span></div>
<span style="font-family:Consolas,Courier,monospace">root 118 0.0 0.0 51732 1732 pts/0 R+ 11:46 0:00 ps aux</span><span style="font-family:Consolas,Courier,monospace"> </span></div>
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My question is that journalctl shows he following:</div>
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<span style="font-family:Consolas,Courier,monospace">Mar 25 11:24:31 nid001002-cluster-1 systemd[1]: Failed to reset devices.list on /kubepods/burstable/podcd69d169-d610-4af7-895a-eb86ee74ed49/4caa4403b8b6d263012e95ca51357ab0bb46fb3bc7a23221115d22efb757cc9c/system.slice/etc-resolv.conf.mount:
Operation not permitted</span></div>
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I would like to ask the meaning of this message and how to solve it (if possible)<br>
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thank you very much</div>
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<a target="_blank" id="LPImageAnchor447552" href="https://developers.redhat.com/blog/2016/09/13/running-systemd-in-a-non-privileged-container#enter_oci_hooks"><img id="LPThumbnailImageId447552" alt="" width="160" height="160" style="display:block" src="https://www.bing.com/th?id=OVP.i-V6fU-v85nu2V3RMuNY-AD6D6&pid=Api"></a></div>
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<a target="_blank" id="LPUrlAnchor447552" href="https://developers.redhat.com/blog/2016/09/13/running-systemd-in-a-non-privileged-container#enter_oci_hooks" style="text-decoration:none">Running systemd in a non-privileged container | Red Hat Developer</a></div>
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UPDATE: Read the new article "How to run systemd in a container" for the latest information.</div>
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developers.redhat.com</div>
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<a target="_blank" id="LPUrlAnchor612412" href="https://systemd.io/CONTAINER_INTERFACE/" style="text-decoration:none">Container Interface - systemd</a></div>
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The Container Interface. Also consult Writing Virtual Machine or Container Managers.. systemd has a number of interfaces for interacting with container managers, when systemd is used inside of an OS container.</div>
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systemd.io</div>
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