docker not working

[hellower]

root@tnt-factory-ubuntu:~# cat /etc/os-release NAME="Ubuntu" VERSION="20.04.4 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.4 LTS" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal root@tnt-factory-ubuntu:~# uname -a Linux tnt-factory-ubuntu 5.4.0-113-generic #127-Ubuntu SMP Wed May 18 14:30:56 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

root@tnt-factory-ubuntu:~# docker pull docker.dragonflydb.io/dragonflydb/dragonfly && \
docker tag docker.dragonflydb.io/dragonflydb/dragonfly dragonfly
Using default tag: latest
latest: Pulling from dragonflydb/dragonfly
Digest: sha256:67839febbab9fccacc4e83903f189ff7793ae906a58409a2ae7c4a62b46286ec
Status: Image is up to date for docker.dragonflydb.io/dragonflydb/dragonfly:latest
docker.dragonflydb.io/dragonflydb/dragonfly:latest
root@tnt-factory-ubuntu:~# docker run --network=host --ulimit memlock=-1 --rm dragonfly
I20220603 23:22:25.723347     1 init.cc:56] dragonfly running in opt mode.
E20220603 23:22:25.723464     1 dfly_main.cc:166] _**Kernel 5.10 or later is supported. Exiting...**_

root@tnt-factory-ubuntu:~#

`....... hence it requires Linux version 5.10 or later. Debian/Bullseye, Ubuntu 20.04.4 or later fit these requirements.`

[hellower]

sorry