Docker-ce 18.06.1-ce-rc2: can't run a container, "stream copy error: reading from a closed fifo"
Being able to run containers on arm32v7 platform, using latest buildroot RC as a distrib, using latest docker-ce RC, 18.06.1-ce-rc2 (I had to make my own compilation scripts for it as right now latest buildroot still package docker-ce 17.05).
# docker run arm32v7/hello-world
Unable to find image 'arm32v7/hello-world:latest' locally
latest: Pulling from arm32v7/hello-world
ad0f38092cf2: Pull complete
Digest: sha256:f1ee3cbf1dbeab65f6b542360aca910ce1f6ba0ff31c803fdf08a13f5f846249
Status: Downloaded newer image for arm32v7/hello-world:latest
docker: Error response from daemon: OCI runtime create failed: json: cannot unmarshal object into Go struct field Process.capabilities of type []string: unknown.
ERRO[0005] error waiting for container: context canceled
And in logs (from dockerd -D):
DEBU[2018-08-16T16:56:17.211651846Z] Calling POST /v1.38/containers/create
DEBU[2018-08-16T16:56:17.213950646Z] form data: {"AttachStderr":true,"AttachStdin":false,"AttachStdout":true,"Cmd":null,"Domainname":"","Entrypoint":null,"Env":[],"HostConfig":{"AutoRemove":false,"Binds":null,"BlkioDeviceReadBps":null,"BlkioDeviceReadIOps":null,"BlkioDeviceWriteBps":null,"BlkioDeviceWriteIOps":null,"BlkioWeight":0,"BlkioWeightDevice":[],"CapAdd":null,"CapDrop":null,"Cgroup":"","CgroupParent":"","ConsoleSize":[0,0],"ContainerIDFile":"","CpuCount":0,"CpuPercent":0,"CpuPeriod":0,"CpuQuota":0,"CpuRealtimePeriod":0,"CpuRealtimeRuntime":0,"CpuShares":0,"CpusetCpus":"","CpusetMems":"","DeviceCgroupRules":null,"Devices":[],"DiskQuota":0,"Dns":[],"DnsOptions":[],"DnsSearch":[],"ExtraHosts":null,"GroupAdd":null,"IOMaximumBandwidth":0,"IOMaximumIOps":0,"IpcMode":"","Isolation":"","KernelMemory":0,"Links":null,"LogConfig":{"Config":{},"Type":""},"MaskedPaths":null,"Memory":0,"MemoryReservation":0,"MemorySwap":0,"MemorySwappiness":-1,"NanoCpus":0,"NetworkMode":"default","OomKillDisable":false,"OomScoreAdj":0,"PidMode":"","PidsLimit":0,"PortBindings":{},"Privileged":false,"PublishAllPorts":false,"ReadonlyPaths":null,"ReadonlyRootfs":false,"RestartPolicy":{"MaximumRetryCount":0,"Name":"no"},"SecurityOpt":null,"ShmSize":0,"UTSMode":"","Ulimits":null,"UsernsMode":"","VolumeDriver":"","VolumesFrom":null},"Hostname":"","Image":"arm32v7/hello-world","Labels":{},"NetworkingConfig":{"EndpointsConfig":{}},"OnBuild":null,"OpenStdin":false,"StdinOnce":false,"Tty":false,"User":"","Volumes":{},"WorkingDir":""}
DEBU[2018-08-16T16:56:17.371378953Z] container mounted via layerStore: &{/var/lib/docker/overlay2/c0456c7129648ae9f785e1b117d254a564ee7e628f93ca2856a2d989ec43aafb/merged 0x221d9c8 0x221d9c8}
DEBU[2018-08-16T16:56:17.981414226Z] Calling POST /v1.38/containers/f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d/attach?stderr=1&stdout=1&stream=1
DEBU[2018-08-16T16:56:17.982203491Z] attach: stdout: begin
DEBU[2018-08-16T16:56:17.982584791Z] attach: stderr: begin
DEBU[2018-08-16T16:56:17.985455541Z] Calling POST /v1.38/containers/f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d/wait?condition=next-exit
DEBU[2018-08-16T16:56:17.989372534Z] Calling POST /v1.38/containers/f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d/start
DEBU[2018-08-16T16:56:17.995537664Z] container mounted via layerStore: &{/var/lib/docker/overlay2/c0456c7129648ae9f785e1b117d254a564ee7e628f93ca2856a2d989ec43aafb/merged 0x221d9c8 0x221d9c8}
DEBU[2018-08-16T16:56:17.997601818Z] Assigning addresses for endpoint modest_mcnulty's interface on network bridge
DEBU[2018-08-16T16:56:17.998037780Z] RequestAddress(LocalDefault/172.17.0.0/16, <nil>, map[])
DEBU[2018-08-16T16:56:17.998510739Z] Request address PoolID:172.17.0.0/16 App: ipam/default/data, ID: LocalDefault/172.17.0.0/16, DBIndex: 0x0, Bits: 65536, Unselected: 65533, Sequence: (0xc0000000, 1)->(0x0, 2046)->(0x1, 1)->end Curr:3 Serial:false PrefAddress:<nil>
DEBU[2018-08-16T16:56:18.054095904Z] Assigning addresses for endpoint modest_mcnulty's interface on network bridge
DEBU[2018-08-16T16:56:18.089673143Z] Programming external connectivity on endpoint modest_mcnulty (1a863ac6ed11a0848362ab79404fd35b5c1bc5dda9066fff5063adbe8cbe82bc)
DEBU[2018-08-16T16:56:18.098083078Z] EnableService f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d START
DEBU[2018-08-16T16:56:18.098232399Z] EnableService f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d DONE
DEBU[2018-08-16T16:56:18.116753455Z] bundle dir created bundle=/var/run/docker/containerd/f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d module=libcontainerd namespace=moby root=/var/lib/docker/overlay2/c0456c7129648ae9f785e1b117d254a564ee7e628f93ca2856a2d989ec43aafb/merged
DEBU[1058] event published ns=moby topic="/containers/create" type=containerd.events.ContainerCreate
INFO[1058] shim docker-containerd-shim started address="/containerd-shim/moby/f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d/shim.sock" debug=true pid=1202
DEBU[0000] registering ttrpc server
DEBU[0000] serving api on unix socket socket="[inherited from parent]"
INFO[1058] shim reaped id=f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d
ERRO[2018-08-16T16:56:18.228857371Z] stream copy error: reading from a closed fifo
ERRO[2018-08-16T16:56:18.229221006Z] stream copy error: reading from a closed fifo
DEBU[2018-08-16T16:56:18.229421322Z] attach: stdout: end
DEBU[2018-08-16T16:56:18.229543311Z] attach: stderr: end
DEBU[2018-08-16T16:56:18.229663301Z] attach done
DEBU[1058] event published ns=moby topic="/containers/delete" type=containerd.events.ContainerDelete
DEBU[2018-08-16T16:56:18.280716194Z] Revoking external connectivity on endpoint modest_mcnulty (1a863ac6ed11a0848362ab79404fd35b5c1bc5dda9066fff5063adbe8cbe82bc)
DEBU[2018-08-16T16:56:18.285227135Z] DeleteConntrackEntries purged ipv4:0, ipv6:0
DEBU[2018-08-16T16:56:18.433890538Z] Releasing addresses for endpoint modest_mcnulty's interface on network bridge
DEBU[2018-08-16T16:56:18.434069855Z] ReleaseAddress(LocalDefault/172.17.0.0/16, 172.17.0.2)
DEBU[2018-08-16T16:56:18.434332499Z] Released address PoolID:LocalDefault/172.17.0.0/16, Address:172.17.0.2 Sequence:App: ipam/default/data, ID: LocalDefault/172.17.0.0/16, DBIndex: 0x0, Bits: 65536, Unselected: 65532, Sequence: (0xe0000000, 1)->(0x0, 2046)->(0x1, 1)->end Curr:3
ERRO[2018-08-16T16:56:18.571690552Z] f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d cleanup: failed to delete container from containerd: no such container
ERRO[2018-08-16T16:56:18.572008858Z] Handler for POST /v1.38/containers/f5f577eed13b9c6792102543ff8e357de64feeadff7a979eee2bba5c09c17b7d/start returned error: OCI runtime create failed: json: cannot unmarshal object into Go struct field Process.capabilities of type []string: unknown
Steps to reproduce the behavior
As shown just above, running the arm32v7/hello-world fails.
It fails similarly for any other image.
It also fails similarly when running a build, at the moment of processing a RUN command in the Dockerfile.
Output of docker version:
Client:
Version: v18.06.1-ce-rc2
API version: 1.38
Go version: go1.10.2
Git commit: v18.06.1-ce-rc2
Built: unknown-buildtime
OS/Arch: linux/arm
Experimental: false
Server:
Engine:
Version: 18.06.1-ce-rc2
API version: 1.38 (minimum version 1.12)
Go version: go1.10.2
Git commit:
Built: Thu Aug 16 15:41:46 UTC 2018
OS/Arch: linux/arm
Experimental: false
Output of docker info:
Containers: 1
Running: 0
Paused: 0
Stopped: 1
Images: 1
Server Version: 18.06.1-ce-rc2
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: (expected: 468a545b9edcd5932818eb9de8e72413e616e86e)
runc version: N/A (expected: 69663f0bd4b60df09991c08812a60108003fa340)
init version: N/A (expected: )
Kernel Version: 4.14.61
Operating System: Buildroot 2018.08-rc1
OSType: linux
Architecture: armv7l
CPUs: 2
Total Memory: 497.5MiB
Name: buildroot
ID: 6WIL:E36P:IKQX:4PUW:GOYT:XZUQ:SDSJ:CE2P:IOGP:ILZP:DOXD:KF2J
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
File Descriptors: 21
Goroutines: 44
System Time: 2018-08-16T17:04:01.643574562Z
EventsListeners: 0
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
docker info does not report it correctly (probably the build scripts), so here are runc and containerd versions:
containerd: 1.1.2
runc: 69663f0bd4b60df09991c08812a60108003fa340
Additional environment details (AWS, VirtualBox, physical, etc.)
Buildroot 2018.08-rc1
iMX6 ARM Cortex A9 (2 cores), cpu flags: half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpd32
The system is not running anything particular. Resources:
Mem: 146208K used, 363216K free, 112K shrd, 11732K buff, 92516K cached
CPU: 0% usr 0% sys 0% nic 99% idle 0% io 0% irq 0% sirq
Generally Necessary:
- cgroup hierarchy: properly mounted [/sys/fs/cgroup]
- apparmor: enabled, but apparmor_parser missing
(look for an "apparmor" package for your distribution)
- CONFIG_NAMESPACES: enabled
- CONFIG_NET_NS: enabled
- CONFIG_PID_NS: enabled
- CONFIG_IPC_NS: enabled
- CONFIG_UTS_NS: enabled
- CONFIG_CGROUPS: enabled
- CONFIG_CGROUP_CPUACCT: enabled
- CONFIG_CGROUP_DEVICE: enabled
- CONFIG_CGROUP_FREEZER: enabled
- CONFIG_CGROUP_SCHED: enabled
- CONFIG_CPUSETS: enabled
- CONFIG_MEMCG: enabled
- CONFIG_KEYS: enabled
- CONFIG_VETH: enabled
- CONFIG_BRIDGE: enabled
- CONFIG_BRIDGE_NETFILTER: enabled
- CONFIG_NF_NAT_IPV4: enabled
- CONFIG_IP_NF_FILTER: enabled
- CONFIG_IP_NF_TARGET_MASQUERADE: enabled
- CONFIG_NETFILTER_XT_MATCH_ADDRTYPE: enabled
- CONFIG_NETFILTER_XT_MATCH_CONNTRACK: enabled
- CONFIG_NETFILTER_XT_MATCH_IPVS: enabled
- CONFIG_IP_NF_NAT: enabled
- CONFIG_NF_NAT: enabled
- CONFIG_NF_NAT_NEEDED: enabled
- CONFIG_POSIX_MQUEUE: enabled
Optional Features:
- CONFIG_USER_NS: enabled
- CONFIG_SECCOMP: enabled
- CONFIG_CGROUP_PIDS: enabled
- CONFIG_MEMCG_SWAP: enabled
- CONFIG_MEMCG_SWAP_ENABLED: enabled
(cgroup swap accounting is currently enabled)
- CONFIG_BLK_CGROUP: enabled
- CONFIG_BLK_DEV_THROTTLING: enabled
- CONFIG_IOSCHED_CFQ: enabled
- CONFIG_CFQ_GROUP_IOSCHED: enabled
- CONFIG_CGROUP_PERF: enabled
- CONFIG_CGROUP_HUGETLB: missing
- CONFIG_NET_CLS_CGROUP: enabled
- CONFIG_CGROUP_NET_PRIO: enabled
- CONFIG_CFS_BANDWIDTH: enabled
- CONFIG_FAIR_GROUP_SCHED: enabled
- CONFIG_RT_GROUP_SCHED: enabled
- CONFIG_IP_VS: enabled
- CONFIG_IP_VS_NFCT: enabled
- CONFIG_IP_VS_RR: enabled
- CONFIG_EXT4_FS: enabled
- CONFIG_EXT4_FS_POSIX_ACL: enabled
- CONFIG_EXT4_FS_SECURITY: enabled
- Network Drivers:
- "overlay":
- CONFIG_VXLAN: enabled
Optional (for encrypted networks):
- CONFIG_CRYPTO: enabled
- CONFIG_CRYPTO_AEAD: enabled
- CONFIG_CRYPTO_GCM: enabled
- CONFIG_CRYPTO_SEQIV: enabled
- CONFIG_CRYPTO_GHASH: enabled
- CONFIG_XFRM: enabled
- CONFIG_XFRM_USER: enabled
- CONFIG_XFRM_ALGO: enabled
- CONFIG_INET_ESP: enabled (as module)
- CONFIG_INET_XFRM_MODE_TRANSPORT: enabled (as module)
- "ipvlan":
- CONFIG_IPVLAN: enabled
- "macvlan":
- CONFIG_MACVLAN: enabled
- CONFIG_DUMMY: enabled (as module)
- "ftp,tftp client in container":
- CONFIG_NF_NAT_FTP: enabled
- CONFIG_NF_CONNTRACK_FTP: enabled
- CONFIG_NF_NAT_TFTP: enabled
- CONFIG_NF_CONNTRACK_TFTP: enabled
- Storage Drivers:
- "aufs":
- CONFIG_AUFS_FS: missing
- "btrfs":
- CONFIG_BTRFS_FS: missing
- CONFIG_BTRFS_FS_POSIX_ACL: missing
- "devicemapper":
- CONFIG_BLK_DEV_DM: missing
- CONFIG_DM_THIN_PROVISIONING: missing
- "overlay":
- CONFIG_OVERLAY_FS: enabled
- "zfs":
- /dev/zfs: missing
- zfs command: missing
- zpool command: missing
Limits:
- /proc/sys/kernel/keys/root_maxkeys: 1000000
Ah, if I use the static binaries provided on:
https://download.docker.com/linux/static/stable/armhf/
It works as expected....
That could mean the build scripts I use are bogus (they come from buildroot git master, plus some community patch to update them). Or the compilation/execution environment maybe.
Would you have an idea where to start looking into?
Or would you have an opinion about how to correctly provide an installation method for such use case (embedded systems built with buildroot basically)?
For the next person with this problem, here is a workaround that works for me:
I have the same problem in Fedora 32, runc 1.0.0 and docker 19.03.11
strata on freenode #docker suggested adding this to the grub kernel line:
systemd.unified_cgroup_hierarchy=0
That fixed it for me :-)
Running debian 10, tried the workaround without success
Kernel Version: 4.19.0-9-amd64
Operating System: Debian GNU/Linux 10 (buster)
Architecture: x86_64
Server Version: 19.03.12
Docker version 19.03.12, build 48a66213fe
# runc --version
runc version 1.0.0-rc10
commit: dc9208a3303feef5b3839f4323d9beb36df0a9dd
spec: 1.0.1-dev
I'm also seeing the same thing since upgrading:
docker: Error response from daemon: ttrpc: closed: unknown.
level=error msg="stream copy error: reading from a closed fifo"
# runc --version
runc version 1.0.0-rc92
commit: ff819c7e9184c13b7c2607fe6c30ae19403a7aff
spec: 1.0.2-dev
# docker --version
Docker version 19.03.12-ce, build 48a66213fe
Kernel Version: 5.8.1-arch1-1
OS: Arch Linux
Arch: x86_64
For the next person with this problem, here is a workaround that works for me:
I have the same problem in Fedora 32, runc 1.0.0 and docker 19.03.11
strata on freenode #docker suggested adding this to the grub kernel line:
systemd.unified_cgroup_hierarchy=0
That fixed it for me :-)
This workaround also did the trick for me on Archlinux:
linux-hardened 5.8.8.a
docker 19.03.12-ce
runc 1.0.0-rc92
containerd 1.4.0.m
this error happened to me, the docker version is:
Client: Docker Engine - Community
Version: 19.03.0
API version: 1.40
Go version: go1.12.5
Git commit: aeac9490dc
Built: Wed Jul 17 18:11:50 2019
OS/Arch: linux/amd64
Experimental: false
check-config.sh output:
warning: /proc/config.gz does not exist, searching other paths for kernel config ...
info: reading kernel config from /boot/config-3.10.0-1127.19.1.el7.x86_64 ...
Generally Necessary:
- cgroup hierarchy: properly mounted [/sys/fs/cgroup]
- CONFIG_NAMESPACES: enabled
- CONFIG_NET_NS: enabled
- CONFIG_PID_NS: enabled
- CONFIG_IPC_NS: enabled
- CONFIG_UTS_NS: enabled
- CONFIG_CGROUPS: enabled
- CONFIG_CGROUP_CPUACCT: enabled
- CONFIG_CGROUP_DEVICE: enabled
- CONFIG_CGROUP_FREEZER: enabled
- CONFIG_CGROUP_SCHED: enabled
- CONFIG_CPUSETS: enabled
- CONFIG_MEMCG: enabled
- CONFIG_KEYS: enabled
- CONFIG_VETH: enabled (as module)
- CONFIG_BRIDGE: enabled (as module)
- CONFIG_BRIDGE_NETFILTER: enabled (as module)
- CONFIG_NF_NAT_IPV4: enabled (as module)
- CONFIG_IP_NF_FILTER: enabled (as module)
- CONFIG_IP_NF_TARGET_MASQUERADE: enabled (as module)
- CONFIG_NETFILTER_XT_MATCH_ADDRTYPE: enabled (as module)
- CONFIG_NETFILTER_XT_MATCH_CONNTRACK: enabled (as module)
- CONFIG_NETFILTER_XT_MATCH_IPVS: enabled (as module)
- CONFIG_IP_NF_NAT: enabled (as module)
- CONFIG_NF_NAT: enabled (as module)
- CONFIG_NF_NAT_NEEDED: enabled
- CONFIG_POSIX_MQUEUE: enabled
- CONFIG_DEVPTS_MULTIPLE_INSTANCES: enabled
Optional Features:
- CONFIG_USER_NS: enabled
(RHEL7/CentOS7: User namespaces disabled; add 'user_namespace.enable=1' to boot command line)
- CONFIG_SECCOMP: enabled
- CONFIG_CGROUP_PIDS: enabled
- CONFIG_MEMCG_SWAP: enabled
- CONFIG_MEMCG_SWAP_ENABLED: enabled
(cgroup swap accounting is currently enabled)
- CONFIG_MEMCG_KMEM: enabled
- CONFIG_RESOURCE_COUNTERS: missing
- CONFIG_BLK_CGROUP: enabled
- CONFIG_BLK_DEV_THROTTLING: enabled
- CONFIG_IOSCHED_CFQ: enabled
- CONFIG_CFQ_GROUP_IOSCHED: enabled
- CONFIG_CGROUP_PERF: enabled
- CONFIG_CGROUP_HUGETLB: enabled
- CONFIG_NET_CLS_CGROUP: enabled
- CONFIG_NETPRIO_CGROUP: enabled
- CONFIG_CFS_BANDWIDTH: enabled
- CONFIG_FAIR_GROUP_SCHED: enabled
- CONFIG_RT_GROUP_SCHED: enabled
- CONFIG_IP_VS: enabled (as module)
- CONFIG_IP_VS_NFCT: enabled
- CONFIG_IP_VS_RR: enabled (as module)
- CONFIG_EXT3_FS: missing
- CONFIG_EXT3_FS_XATTR: missing
- CONFIG_EXT3_FS_POSIX_ACL: missing
- CONFIG_EXT3_FS_SECURITY: missing
(enable these ext3 configs if you are using ext3 as backing filesystem)
- CONFIG_EXT4_FS: enabled (as module)
- CONFIG_EXT4_FS_POSIX_ACL: enabled
- CONFIG_EXT4_FS_SECURITY: enabled
- Network Drivers:
- "overlay":
- CONFIG_VXLAN: enabled (as module)
Optional (for encrypted networks):
- CONFIG_CRYPTO: enabled
- CONFIG_CRYPTO_AEAD: enabled
- CONFIG_CRYPTO_GCM: enabled (as module)
- CONFIG_CRYPTO_SEQIV: enabled
- CONFIG_CRYPTO_GHASH: enabled (as module)
- CONFIG_XFRM: enabled
- CONFIG_XFRM_USER: enabled
- CONFIG_XFRM_ALGO: enabled
- CONFIG_INET_ESP: enabled (as module)
- CONFIG_INET_XFRM_MODE_TRANSPORT: enabled (as module)
- "ipvlan":
- CONFIG_IPVLAN: missing
- "macvlan":
- CONFIG_MACVLAN: enabled (as module)
- CONFIG_DUMMY: enabled (as module)
- "ftp,tftp client in container":
- CONFIG_NF_NAT_FTP: enabled (as module)
- CONFIG_NF_CONNTRACK_FTP: enabled (as module)
- CONFIG_NF_NAT_TFTP: enabled (as module)
- CONFIG_NF_CONNTRACK_TFTP: enabled (as module)
- Storage Drivers:
- "aufs":
- CONFIG_AUFS_FS: missing
- "btrfs":
- CONFIG_BTRFS_FS: enabled (as module)
- CONFIG_BTRFS_FS_POSIX_ACL: enabled
- "devicemapper":
- CONFIG_BLK_DEV_DM: enabled (as module)
- CONFIG_DM_THIN_PROVISIONING: enabled (as module)
- "overlay":
- CONFIG_OVERLAY_FS: enabled (as module)
- "zfs":
- /dev/zfs: missing
- zfs command: missing
- zpool command: missing
Limits:
- /proc/sys/kernel/keys/root_maxkeys: 1000000
Go version: go1.13.15
Git commit: 370c289
Built: Fri Apr 9 22:47:17 2021
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.6
API version: 1.41 (minimum version 1.12)
Go version: go1.13.15
Git commit: 8728dd2
Built: Fri Apr 9 22:45:28 2021
OS/Arch: linux/amd64
Experimental: true
containerd:
Version: 1.4.4
GitCommit: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e
runc:
Version: 1.0.0-rc93
GitCommit: 12644e614e25b05da6fd08a38ffa0cfe1903fdec
docker-init:
Version: 0.19.0
GitCommit: de40ad0
kerner: 5.4.0-66-generic
Ubuntu 20.04.2 LTS
x86_64
