On 4/13/22 09:08, Barry Scott wrote: > The OS is oracle linux 8 with > > podman-3.4.2-9.0.1.module+el8.5.0+20494+0311868c.x86_64 > kernel-4.18.0-348.20.1.el8_5.x86_64 > > I start a container in a systemd service using: > > + /usr/bin/podman start cloud-dice > > And get this error from podman: > > Error: unable to start container > "76e4a2480bc7f81d3baa802f3d48fffc2e3d252a52f33039d83e339d3f158532": > failed to mount shm tmpfs > "/var/lib/containers/storage/overlay-containers/76e4a2480bc7f81d3baa802f3d48fffc2e3d252a52f33039d83e339d3f158532/userdata/shm": > invalid argument > > And these messages in dmesg: > > [82521.621247] tmpfs: Unknown parameter 'context' > [82521.643785] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready > [82521.648888] IPv6: ADDRCONF(NETDEV_UP): vethc149f6ee: link is not > ready > [82521.650561] IPv6: ADDRCONF(NETDEV_CHANGE): vethc149f6ee: link > becomes ready > [82521.651950] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready > [82521.654408] cni-podman0: port 1(vethc149f6ee) entered blocking state > [82521.655364] cni-podman0: port 1(vethc149f6ee) entered disabled state > [82521.656594] device vethc149f6ee entered promiscuous mode > [82521.657537] cni-podman0: port 1(vethc149f6ee) entered blocking state > [82521.658455] cni-podman0: port 1(vethc149f6ee) entered forwarding > state > [82521.880289] cni-podman0: port 1(vethc149f6ee) entered disabled state > [82521.883696] device vethc149f6ee left promiscuous mode > [82521.884435] cni-podman0: port 1(vethc149f6ee) entered disabled state > > If I rebuild the container then I do not see the tmpfs error and > everything works. > > What do I need to do to fix the "tmpfs: Unknown parameter 'context'" > error that I'm assuming is root cause? > > Barry >  context seems to be an SELinux thing.  Did you create a machine with SELinux and then reboot with it disabled?

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