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On Tue, 10 Sep 2019 10:12:08 -0400, |
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Andrew Udvare wrote: |
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> |
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> For reference: uname -r: 5.2.13-gentoo, systemd version 243_rc2-r1[cgroup-hybrid], ACCEPT_KEYWORDS="~amd64" |
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> |
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> My system started failing to start running docker.service automatically and the logs weren't too helpful. Finally I ran dockerd on its own and found that it gave me this error message: |
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> |
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> Devices cgroup isn't mounted |
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> |
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> This is not too easy to diagnose as there seem to be a set of solutions but none of the main two worked for me. One involved setting 2 options on the kernel command line: |
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> |
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> cgroup_enable=memory swapaccount=1 |
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> |
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> And the other was to add USE="cgroup-hybrid" to systemd. I did this, but it too it did not work. |
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> |
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> The other solution is to simply mount the cgroup manually and this works but I did not see why I'd have to do that now when I never had to in the past. |
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> |
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> I actually had to add this to my command line: |
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> |
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> systemd.legacy_systemd_cgroup_controller=yes |
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> |
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> This has been noted in other distros but from what I can tell this is solely because runc has not been updated to be able to use cgroups v2. |
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> |
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> Anyone else ran into this issue? Is there something I am missing so I wouldn't need to pass a kernel command line option? |
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> |
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> Reference links: |
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> |
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> https://docs.docker.com/install/linux/linux-postinstall/#your-kernel-does-not-support-cgroup-swap-limit-capabilities |
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> https://github.com/opencontainers/runc/issues/654 |
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> https://github.com/opencontainers/runc/issues/1175 |
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> https://wiki.gentoo.org/wiki/Docker#Docker_service_fails_because_cgroup_device_not_mounted_.28systemd.29 |
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|
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I ran into this issue when going from 4.19.56 to 4.19.68 kernel. |
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Perhaps I will try this option later on, but I wonder if we could file |
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a bug with sgentoo or somewhere? |
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|
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-- |
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Your life is like a penny. You're going to lose it. The question is: |
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How do |
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you spend it? |
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|
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John Covici wb2una |
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covici@××××××××××.com |