Any chance to run docker on Udoobuntu? I checked the kernel config with a shell script and it says: Code: root@udooneo:/# curl -L https://raw.githubusercontent.com/docker/docker/master/contrib/check-config.sh | /bin/bash /dev/stdin /path/to/.config % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 10257 100 10257 0 0 24735 0 --:--:-- --:--:-- --:--:-- 24775 warning: /path/to/.config does not exist, searching other paths for kernel config ... info: reading kernel config from /boot/config-3.14.56-udooneo-02054-gc460cad ... 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: missing - CONFIG_CGROUP_DEVICE: enabled - CONFIG_CGROUP_FREEZER: enabled - CONFIG_CGROUP_SCHED: missing - CONFIG_CPUSETS: missing - CONFIG_MEMCG: missing - CONFIG_KEYS: enabled - CONFIG_VETH: missing - CONFIG_BRIDGE: enabled (as module) - CONFIG_BRIDGE_NETFILTER: enabled - 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: missing - CONFIG_NETFILTER_XT_MATCH_CONNTRACK: missing - CONFIG_NETFILTER_XT_MATCH_IPVS: missing - CONFIG_IP_NF_NAT: missing - CONFIG_NF_NAT: enabled (as module) - CONFIG_NF_NAT_NEEDED: enabled - CONFIG_POSIX_MQUEUE: missing - CONFIG_DEVPTS_MULTIPLE_INSTANCES: missing Optional Features: - CONFIG_USER_NS: missing - CONFIG_SECCOMP: enabled - CONFIG_CGROUP_PIDS: missing - CONFIG_MEMCG_SWAP: missing - CONFIG_MEMCG_SWAP_ENABLED: missing - CONFIG_MEMCG_KMEM: missing - CONFIG_RESOURCE_COUNTERS: missing - CONFIG_BLK_CGROUP: missing - CONFIG_BLK_DEV_THROTTLING: missing - CONFIG_IOSCHED_CFQ: enabled - CONFIG_CFQ_GROUP_IOSCHED: missing - CONFIG_CGROUP_PERF: missing - CONFIG_CGROUP_HUGETLB: missing - CONFIG_NET_CLS_CGROUP: missing - CONFIG_CGROUP_NET_PRIO: missing - CONFIG_CFS_BANDWIDTH: missing - CONFIG_FAIR_GROUP_SCHED: missing - CONFIG_RT_GROUP_SCHED: missing - CONFIG_IP_VS: missing - CONFIG_IP_VS_NFCT: missing - CONFIG_IP_VS_RR: missing - 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 - 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 - CONFIG_CRYPTO_SEQIV: enabled - CONFIG_CRYPTO_GHASH: enabled - CONFIG_XFRM: enabled - CONFIG_XFRM_USER: missing - CONFIG_XFRM_ALGO: missing - CONFIG_INET_ESP: missing - 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: missing - CONFIG_NF_CONNTRACK_FTP: missing - CONFIG_NF_NAT_TFTP: missing - CONFIG_NF_CONNTRACK_TFTP: missing - 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: missing - "zfs": - /dev/zfs: missing - zfs command: missing - zpool command: missing Limits: - /proc/sys/kernel/keys/root_maxkeys: 1000000 It lacks of lots of modules. Should I build a custom kernel?
I tried. Following the guide (https://www.udoo.org/docs-neo/Advanced_Topics/Compile_Linux_Kernel.html) I did menuconfig. I activated the modules I need, I followed the following steps, copied zImage and dtb to /boot/dts-overlay but my config file seems wrong: Code: root@udooneo:/home/udooer# cat /boot/config-3.14.56-udooneo-02054-gc460cad | grep CGROUP_CPUACCT # CONFIG_CGROUP_CPUACCT is not set In menyconfig CGROUP_CPUACCT is set to YES. Why? Docker partially works: Code: root@udooneo:/home/udooer# docker info Containers: 6 Running: 0 Paused: 0 Stopped: 6 Images: 4 Server Version: 17.07.0-ce Storage Driver: devicemapper Pool Name: docker-179:2-510194-pool Pool Blocksize: 65.54kB Base Device Size: 10.74GB Backing Filesystem: ext4 Data file: /dev/loop0 Metadata file: /dev/loop1 Data Space Used: 588MB Data Space Total: 107.4GB Data Space Available: 9.974GB Metadata Space Used: 1.462MB Metadata Space Total: 2.147GB Metadata Space Available: 2.146GB Thin Pool Minimum Free Space: 10.74GB Udev Sync Supported: true Deferred Removal Enabled: false Deferred Deletion Enabled: false Deferred Deleted Device Count: 0 Data loop file: /var/lib/docker/devicemapper/devicemapper/data Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata Library Version: 1.02.77 (2012-10-15) 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: 3addd840653146c90a254301d6c3a663c7fd6429 runc version: 2d41c047c83e09a6d61d464906feb2a2f3c52aa4 init version: 949e6fa Kernel Version: 3.14.56-02054-gc460cad Operating System: Ubuntu 14.04.5 LTS OSType: linux Architecture: armv7l CPUs: 1 Total Memory: 992.4MiB Name: udooneo ID: LOHV:GNVV:5HGE:5ROB:IROV:YZRW:SGCA:4FOC:MKVD:PQ6N:BSXS:ZXMK Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false WARNING: devicemapper: usage of loopback devices is strongly discouraged for production use. Use `--storage-opt dm.thinpooldev` to specify a custom block storage device. WARNING: No cpu cfs quota support WARNING: No cpu cfs period support But I can't run a armv7 image: Code: root@udooneo:/home/udooer# docker run -ti arm32v7/busybox /bin/sh Unable to find image 'arm32v7/busybox:latest' locally latest: Pulling from arm32v7/busybox bb07b4fe9fad: Pull complete Digest: sha256:a8fe0549cac196f439de3bf2b57af14f7cd4e59915ccd524428f588628a4ef31 Status: Downloaded newer image for arm32v7/busybox:latest docker: Error response from daemon: oci runtime error: container_linux.go:262: starting container process caused "process_linux.go:339: container init caused \"open /dev/ptmx: no such file or directory\"".
Ok now seems to work. I think the script didn't check correctly because the config file in /boot/ was the old one. Actually docker started but the last error was due to the -ti flag (interactive shell). Mounting dev, fixes the problem: Code: root@udooneo:/home/udooer# sudo docker run -ti -v "/dev:/dev" arm32v7/ubuntu /bin/sh # date Tue Sep 12 10:35:21 UTC 2017
