2026-04-30 12:29:40,580: INFO: Building opensdn-vrouter-base 2026-04-30 12:29:40,606: INFO: Building args: --network host --build-arg PIP_REPOSITORY=http://localhost:6667/pip/simple --build-arg CONTRAIL_REGISTRY=nexus.gz1.opensdn.io:5101 --build-arg CONTRAIL_CONTAINER_TAG=master-2_7_7_1-2_3 --build-arg SITE_MIRROR=http://nexus.gz1.opensdn.io/repository/external-web-cache --build-arg LINUX_DISTR_VER=9 --build-arg LINUX_DISTR=rockylinux --build-arg CONTAINER_NAME=opensdn-vrouter-base --build-arg UBUNTU_DISTR_VERSION=24.04 --build-arg UBUNTU_DISTR=ubuntu --build-arg VENDOR_NAME=OpenSDN-IO --build-arg VENDOR_DOMAIN=io.opensdn --build-arg BUILD_IMAGE=tf-dev-sandbox:compile --build-arg BUILD_ROOT=/buildroot --build-arg DEBUGINFO_ROOT=/debuginfo #0 building with "default" instance using docker driver #1 [internal] load build definition from Dockerfile #1 transferring dockerfile: #1 transferring dockerfile: 1.28kB done #1 DONE 0.6s #2 [internal] load metadata for nexus.gz1.opensdn.io:5101/opensdn-base:master-2_7_7_1-2_3 #2 DONE 0.0s #3 [internal] load metadata for docker.io/library/tf-dev-sandbox:compile #3 DONE 0.0s #4 [internal] load .dockerignore #4 transferring context: #4 transferring context: 2B done #4 DONE 0.9s #5 [1/5] FROM nexus.gz1.opensdn.io:5101/opensdn-base:master-2_7_7_1-2_3 #5 DONE 0.2s #6 [build 1/1] FROM docker.io/library/tf-dev-sandbox:compile #6 CACHED #7 [internal] load build context #7 transferring context: 86.20kB done #7 DONE 0.7s #8 [stage-1 2/5] COPY --from=build /buildroot/usr/bin/tools/vif /usr/bin/ #8 DONE 1.1s #9 [stage-1 3/5] COPY --from=build /buildroot/usr/bin/tools/qosmap /usr/bin/ #9 DONE 0.5s #10 [stage-1 4/5] RUN set -e ; source /etc/os-release ; dnf install -y NetworkManager initscripts ethtool pciutils ; dnf clean all -y ; if [[ "$ID" == 'rhel' && "${PLATFORM_ID/*:/}" == 'el8' ]] ; then rm -f /usr/sbin/ifup /usr/sbin/ifdown && cp /etc/sysconfig/network-scripts/ifup /etc/sysconfig/network-scripts/ifdown /usr/sbin/ ; fi ; mkdir -p /opt/contrail ; cp -r /etc/sysconfig/network-scripts /opt/contrail/ ; rm -rf /var/cache/yum /etc/sysconfig/network-scripts ; ldconfig #10 1.142 added from: http://tf-mirrors.gz1.opensdn.io/re 64 MB/s | 14 MB 00:00 #10 3.351 added from: http://tf-mirrors.gz1.opensdn.io/re 30 MB/s | 1.9 MB 00:00 #10 3.987 added from: http://tf-mirrors.gz1.opensdn.io/re 8.6 MB/s | 402 kB 00:00 #10 4.550 added from: http://tf-mirrors.gz1.opensdn.io/re 54 MB/s | 16 MB 00:00 #10 8.119 added from: http://tf-mirrors.gz1.opensdn.io/re 76 MB/s | 11 MB 00:00 #10 10.36 added from: http://tf-mirrors.gz1.opensdn.io/re 21 MB/s | 1.1 MB 00:00 #10 11.08 added from: http://tf-mirrors.gz1.opensdn.io/re 11 MB/s | 4.8 MB 00:00 #10 12.39 added from: http://tf-mirrors.gz1.opensdn.io/re 21 MB/s | 697 kB 00:00 #10 12.85 added from: http://tf-mirrors.gz1.opensdn.io/re 13 MB/s | 474 kB 00:00 #10 13.31 added from: http://tf-mirrors.gz1.opensdn.io/re 616 kB/s | 18 kB 00:00 #10 13.51 added from: http://tf-mirrors.gz1.opensdn.io/re 6.8 kB/s | 257 B 00:00 #10 13.89 added from: http://tf-mirrors.gz1.opensdn.io/re 523 kB/s | 15 kB 00:00 #10 14.22 added from: http://tf-mirrors.gz1.opensdn.io/re 3.0 MB/s | 96 kB 00:00 #10 15.24 added from: http://tf-mirrors.gz1.opensdn.io/re 58 MB/s | 39 MB 00:00 #10 27.45 Third parties for OpenSDN 36 MB/s | 5.1 MB 00:00 #10 32.80 Dependencies resolved. #10 32.80 ==================================================================================================== #10 32.80 Package Arch Version Repository Size #10 32.80 ==================================================================================================== #10 32.80 Installing: #10 32.80 NetworkManager x86_64 1:1.54.0-3.el9_7 tf-mirrors.ci_repos_yum9-baseos 2.3 M #10 32.80 ethtool x86_64 2:6.15-2.el9 tf-mirrors.ci_repos_yum9-baseos 331 k #10 32.80 initscripts x86_64 10.11.8-4.el9 tf-mirrors.ci_repos_yum9-baseos 208 k #10 32.80 pciutils x86_64 3.7.0-7.el9 tf-mirrors.ci_repos_yum9-baseos 92 k #10 32.80 Installing dependencies: #10 32.80 NetworkManager-libnm x86_64 1:1.54.0-3.el9_7 tf-mirrors.ci_repos_yum9-baseos 1.9 M #10 32.80 chkconfig x86_64 1.24-2.el9 tf-mirrors.ci_repos_yum9-baseos 160 k #10 32.80 cryptsetup-libs x86_64 2.7.2-4.el9 tf-mirrors.ci_repos_yum9-baseos 514 k #10 32.80 device-mapper x86_64 9:1.02.206-2.el9_7.1 tf-mirrors.ci_repos_yum9-baseos 138 k #10 32.80 device-mapper-libs x86_64 9:1.02.206-2.el9_7.1 tf-mirrors.ci_repos_yum9-baseos 179 k #10 32.80 hwdata noarch 0.348-9.20.el9 tf-mirrors.ci_repos_yum9-baseos 1.7 M #10 32.80 initscripts-rename-device x86_64 10.11.8-4.el9 tf-mirrors.ci_repos_yum9-baseos 14 k #10 32.80 initscripts-service noarch 10.11.8-4.el9 tf-mirrors.ci_repos_yum9-baseos 11 k #10 32.80 kbd x86_64 2.4.0-11.el9 tf-mirrors.ci_repos_yum9-baseos 383 k #10 32.80 kbd-legacy noarch 2.4.0-11.el9 tf-mirrors.ci_repos_yum9-baseos 502 k #10 32.80 kbd-misc noarch 2.4.0-11.el9 tf-mirrors.ci_repos_yum9-baseos 1.5 M #10 32.80 kmod x86_64 28-11.el9 tf-mirrors.ci_repos_yum9-baseos 121 k #10 32.80 libndp x86_64 1.9-1.el9 tf-mirrors.ci_repos_yum9-baseos 37 k #10 32.80 pciutils-libs x86_64 3.7.0-7.el9 tf-mirrors.ci_repos_yum9-baseos 40 k #10 32.80 systemd-udev x86_64 252-55.el9_7.7.rocky.0.1 tf-mirrors.ci_repos_yum9-baseos 1.9 M #10 32.80 Installing weak dependencies: #10 32.80 iputils x86_64 20210202-15.el9 tf-mirrors.ci_repos_yum9-baseos 167 k #10 32.80 #10 32.80 Transaction Summary #10 32.80 ==================================================================================================== #10 32.80 Install 20 Packages #10 32.80 #10 32.80 Total download size: 12 M #10 32.80 Installed size: 49 M #10 32.80 Downloading Packages: #10 32.87 (1/20): chkconfig-1.24-2.el9.x86_64.rpm 4.5 MB/s | 160 kB 00:00 #10 32.87 (2/20): cryptsetup-libs-2.7.2-4.el9.x86_64.rpm 17 MB/s | 514 kB 00:00 #10 32.94 (3/20): NetworkManager-libnm-1.54.0-3.el9_7.x86 20 MB/s | 1.9 MB 00:00 #10 32.94 (4/20): NetworkManager-1.54.0-3.el9_7.x86_64.rp 20 MB/s | 2.3 MB 00:00 #10 32.94 (5/20): device-mapper-1.02.206-2.el9_7.1.x86_64 2.5 MB/s | 138 kB 00:00 #10 32.94 (6/20): device-mapper-libs-1.02.206-2.el9_7.1.x 5.3 MB/s | 179 kB 00:00 #10 32.94 (7/20): ethtool-6.15-2.el9.x86_64.rpm 19 MB/s | 331 kB 00:00 #10 32.94 (8/20): initscripts-10.11.8-4.el9.x86_64.rpm 13 MB/s | 208 kB 00:00 #10 33.02 (9/20): initscripts-rename-device-10.11.8-4.el9 1.1 MB/s | 14 kB 00:00 #10 33.02 (10/20): initscripts-service-10.11.8-4.el9.noar 1.4 MB/s | 11 kB 00:00 #10 33.02 (11/20): iputils-20210202-15.el9.x86_64.rpm 25 MB/s | 167 kB 00:00 #10 33.02 (12/20): kbd-2.4.0-11.el9.x86_64.rpm 30 MB/s | 383 kB 00:00 #10 33.02 (13/20): kbd-legacy-2.4.0-11.el9.noarch.rpm 28 MB/s | 502 kB 00:00 #10 33.02 (14/20): hwdata-0.348-9.20.el9.noarch.rpm 25 MB/s | 1.7 MB 00:00 #10 33.02 (15/20): kmod-28-11.el9.x86_64.rpm 5.5 MB/s | 121 kB 00:00 #10 33.02 (16/20): libndp-1.9-1.el9.x86_64.rpm 4.0 MB/s | 37 kB 00:00 #10 33.02 (17/20): pciutils-3.7.0-7.el9.x86_64.rpm 11 MB/s | 92 kB 00:00 #10 33.02 (18/20): pciutils-libs-3.7.0-7.el9.x86_64.rpm 5.2 MB/s | 40 kB 00:00 #10 33.06 (19/20): kbd-misc-2.4.0-11.el9.noarch.rpm 23 MB/s | 1.5 MB 00:00 #10 33.06 (20/20): systemd-udev-252-55.el9_7.7.rocky.0.1. 44 MB/s | 1.9 MB 00:00 #10 33.06 -------------------------------------------------------------------------------- #10 33.06 Total 49 MB/s | 12 MB 00:00 #10 33.06 Running transaction check #10 33.24 Transaction check succeeded. #10 33.24 Running transaction test #10 33.35 Transaction test succeeded. #10 33.35 Running transaction #10 33.71 Preparing : 1/1 #10 33.79 Installing : device-mapper-libs-9:1.02.206-2.el9_7.1.x86_64 1/20 #10 33.90 Installing : device-mapper-9:1.02.206-2.el9_7.1.x86_64 2/20 #10 33.90 Installing : cryptsetup-libs-2.7.2-4.el9.x86_64 3/20 #10 33.90 Installing : pciutils-libs-3.7.0-7.el9.x86_64 4/20 #10 33.90 Installing : libndp-1.9-1.el9.x86_64 5/20 #10 33.90 Installing : kmod-28-11.el9.x86_64 6/20 #10 34.00 Installing : kbd-misc-2.4.0-11.el9.noarch 7/20 #10 34.03 Installing : kbd-legacy-2.4.0-11.el9.noarch 8/20 #10 34.07 Installing : kbd-2.4.0-11.el9.x86_64 9/20 #10 34.22 Installing : systemd-udev-252-55.el9_7.7.rocky.0.1.x86_64 10/20 #10 34.22 Running scriptlet: systemd-udev-252-55.el9_7.7.rocky.0.1.x86_64 10/20 #10 34.73 Created symlink /etc/systemd/system/sysinit.target.wants/systemd-boot-update.service → /usr/lib/systemd/system/systemd-boot-update.service. #10 34.73 Created symlink /etc/systemd/system/sysinit.target.wants/systemd-pstore.service → /usr/lib/systemd/system/systemd-pstore.service. #10 34.73 #10 34.73 Installing : iputils-20210202-15.el9.x86_64 11/20 #10 34.76 Running scriptlet: iputils-20210202-15.el9.x86_64 11/20 #10 34.80 Installing : initscripts-service-10.11.8-4.el9.noarch 12/20 #10 34.80 Installing : initscripts-rename-device-10.11.8-4.el9.x86_64 13/20 #10 34.89 Installing : hwdata-0.348-9.20.el9.noarch 14/20 #10 34.89 Installing : chkconfig-1.24-2.el9.x86_64 15/20 #10 34.89 Installing : NetworkManager-libnm-1:1.54.0-3.el9_7.x86_64 16/20 #10 34.92 Running scriptlet: NetworkManager-1:1.54.0-3.el9_7.x86_64 17/20 #10 34.98 Installing : NetworkManager-1:1.54.0-3.el9_7.x86_64 17/20 #10 35.00 Running scriptlet: NetworkManager-1:1.54.0-3.el9_7.x86_64 17/20 #10 35.04 Created symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service → /usr/lib/systemd/system/NetworkManager.service. #10 35.04 Created symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service → /usr/lib/systemd/system/NetworkManager-dispatcher.service. #10 35.04 Created symlink /etc/systemd/system/network-online.target.wants/NetworkManager-wait-online.service → /usr/lib/systemd/system/NetworkManager-wait-online.service. #10 35.04 #10 35.04 Installing : initscripts-10.11.8-4.el9.x86_64 18/20 #10 35.04 Running scriptlet: initscripts-10.11.8-4.el9.x86_64 18/20 #10 35.07 Created symlink /etc/systemd/system/sysinit.target.wants/import-state.service → /usr/lib/systemd/system/import-state.service. #10 35.07 Created symlink /etc/systemd/system/sysinit.target.wants/loadmodules.service → /usr/lib/systemd/system/loadmodules.service. #10 35.07 #10 35.07 Installing : pciutils-3.7.0-7.el9.x86_64 19/20 #10 35.09 Installing : ethtool-2:6.15-2.el9.x86_64 20/20 #10 35.11 Running scriptlet: ethtool-2:6.15-2.el9.x86_64 20/20 #10 35.84 Verifying : NetworkManager-1:1.54.0-3.el9_7.x86_64 1/20 #10 35.84 Verifying : NetworkManager-libnm-1:1.54.0-3.el9_7.x86_64 2/20 #10 35.84 Verifying : chkconfig-1.24-2.el9.x86_64 3/20 #10 35.84 Verifying : cryptsetup-libs-2.7.2-4.el9.x86_64 4/20 #10 35.84 Verifying : device-mapper-9:1.02.206-2.el9_7.1.x86_64 5/20 #10 35.84 Verifying : device-mapper-libs-9:1.02.206-2.el9_7.1.x86_64 6/20 #10 35.84 Verifying : ethtool-2:6.15-2.el9.x86_64 7/20 #10 35.84 Verifying : hwdata-0.348-9.20.el9.noarch 8/20 #10 35.84 Verifying : initscripts-10.11.8-4.el9.x86_64 9/20 #10 35.84 Verifying : initscripts-rename-device-10.11.8-4.el9.x86_64 10/20 #10 35.84 Verifying : initscripts-service-10.11.8-4.el9.noarch 11/20 #10 35.84 Verifying : iputils-20210202-15.el9.x86_64 12/20 #10 35.84 Verifying : kbd-2.4.0-11.el9.x86_64 13/20 #10 35.84 Verifying : kbd-legacy-2.4.0-11.el9.noarch 14/20 #10 35.84 Verifying : kbd-misc-2.4.0-11.el9.noarch 15/20 #10 35.84 Verifying : kmod-28-11.el9.x86_64 16/20 #10 35.84 Verifying : libndp-1.9-1.el9.x86_64 17/20 #10 35.84 Verifying : pciutils-3.7.0-7.el9.x86_64 18/20 #10 35.84 Verifying : pciutils-libs-3.7.0-7.el9.x86_64 19/20 #10 35.84 Verifying : systemd-udev-252-55.el9_7.7.rocky.0.1.x86_64 20/20 #10 35.95 #10 35.95 Installed: #10 35.95 NetworkManager-1:1.54.0-3.el9_7.x86_64 #10 35.95 NetworkManager-libnm-1:1.54.0-3.el9_7.x86_64 #10 35.95 chkconfig-1.24-2.el9.x86_64 #10 35.95 cryptsetup-libs-2.7.2-4.el9.x86_64 #10 35.95 device-mapper-9:1.02.206-2.el9_7.1.x86_64 #10 35.95 device-mapper-libs-9:1.02.206-2.el9_7.1.x86_64 #10 35.95 ethtool-2:6.15-2.el9.x86_64 #10 35.95 hwdata-0.348-9.20.el9.noarch #10 35.95 initscripts-10.11.8-4.el9.x86_64 #10 35.95 initscripts-rename-device-10.11.8-4.el9.x86_64 #10 35.95 initscripts-service-10.11.8-4.el9.noarch #10 35.95 iputils-20210202-15.el9.x86_64 #10 35.95 kbd-2.4.0-11.el9.x86_64 #10 35.95 kbd-legacy-2.4.0-11.el9.noarch #10 35.95 kbd-misc-2.4.0-11.el9.noarch #10 35.95 kmod-28-11.el9.x86_64 #10 35.95 libndp-1.9-1.el9.x86_64 #10 35.95 pciutils-3.7.0-7.el9.x86_64 #10 35.95 pciutils-libs-3.7.0-7.el9.x86_64 #10 35.95 systemd-udev-252-55.el9_7.7.rocky.0.1.x86_64 #10 35.95 #10 35.95 Complete! #10 36.36 77 files removed #10 DONE 36.4s #11 [stage-1 5/5] COPY *.sh ifup-* ifdown-* network-functions-vrouter* dhclient-vhost0.conf / #11 DONE 0.1s #12 exporting to image #12 exporting layers #12 exporting layers 0.7s done #12 writing image sha256:9c3cbd7fef6e5be9bb60b962ac2f2320d9c6750161fa583fef22935002b89251 #12 writing image sha256:9c3cbd7fef6e5be9bb60b962ac2f2320d9c6750161fa583fef22935002b89251 done #12 naming to nexus.gz1.opensdn.io:5101/opensdn-vrouter-base:master-2_7_7_1-2_3 done #12 DONE 0.7s 2 warnings found (use docker --debug to expand):  - InvalidDefaultArgInFrom: Default value for ARG ${BUILD_IMAGE} results in empty or invalid base image name (line 4) - InvalidDefaultArgInFrom: Default value for ARG ${CONTRAIL_REGISTRY}/opensdn-base:${CONTRAIL_CONTAINER_TAG} results in empty or invalid base image name (line 6) 2026-04-30 12:31:01,911: INFO: Docker build duration: 81 seconds The push refers to repository [nexus.gz1.opensdn.io:5101/opensdn-vrouter-base] 86e98c8f1604: Preparing 1e468069ed9a: Preparing c2c4df3dc1d5: Preparing e8605161ce0f: Preparing 8cd6851a1fa0: Preparing e13537dce281: Preparing 9db0f1bbe3b9: Preparing 8893b01f2a50: Preparing 1c4670c03a11: Preparing b2bd8aabad6b: Preparing 1894b3ecb4ad: Preparing d8fa4c27f838: Preparing 59f6940d9909: Preparing e45513ae33de: Preparing 37350dd91f30: Preparing 4f3308bd71e6: Preparing 2f4e8f409337: Preparing 44343de3ea1d: Preparing c2c4df3dc1d5: Waiting e8605161ce0f: Waiting 8cd6851a1fa0: Waiting e13537dce281: Waiting 9db0f1bbe3b9: Waiting 8893b01f2a50: Waiting 1c4670c03a11: Waiting b2bd8aabad6b: Waiting 1894b3ecb4ad: Waiting d8fa4c27f838: Waiting 59f6940d9909: Waiting e45513ae33de: Waiting 37350dd91f30: Waiting 4f3308bd71e6: Waiting 2f4e8f409337: Waiting 44343de3ea1d: Waiting 86e98c8f1604: Pushed c2c4df3dc1d5: Pushed e8605161ce0f: Pushed 8cd6851a1fa0: Layer already exists e13537dce281: Layer already exists 9db0f1bbe3b9: Layer already exists 8893b01f2a50: Layer already exists 1c4670c03a11: Layer already exists b2bd8aabad6b: Layer already exists 1894b3ecb4ad: Layer already exists d8fa4c27f838: Layer already exists 59f6940d9909: Layer already exists e45513ae33de: Layer already exists 37350dd91f30: Layer already exists 4f3308bd71e6: Layer already exists 2f4e8f409337: Layer already exists 44343de3ea1d: Layer already exists 1e468069ed9a: Pushed master-2_7_7_1-2_3: digest: sha256:b52b174d2d832ee33bd236a32af6cc72624dc0c9339392ade950dbf526e74115 size: 4090 2026-04-30 12:31:05,814: INFO: Building opensdn-vrouter-base finished successfully, duration: 85 seconds WARNING: This output is designed for human readability. For machine-readable output, please use --format. IMAGE ID DISK USAGE CONTENT SIZE EXTRA nexus.gz1.opensdn.io:5101/opensdn-analytics-base:master-2_7_7_1-2_3 c8581cfe97ac 676MB 0B nexus.gz1.opensdn.io:5101/opensdn-analytics-snmp-base:master-2_7_7_1-2_3 ba907e380dc4 917MB 0B nexus.gz1.opensdn.io:5101/opensdn-ansible-deployer-src:master-2_7_7_1-2_3 9f16838e8bbc 1.41MB 0B nexus.gz1.opensdn.io:5101/opensdn-base:master-2_7_7_1-2_3 1e92e23eeb47 676MB 0B nexus.gz1.opensdn.io:5101/opensdn-build-manifest-src:master-2_7_7_1-2_3 6799786b7dc9 4.17kB 0B nexus.gz1.opensdn.io:5101/opensdn-charms-src:master-2_7_7_1-2_3 e89ed55995e4 6.05MB 0B nexus.gz1.opensdn.io:5101/opensdn-container-builder-src:master-2_7_7_1-2_3 287d2d62392f 2.39MB 0B nexus.gz1.opensdn.io:5101/opensdn-controller-config-base:master-2_7_7_1-2_3 19ebd1c203e5 676MB 0B nexus.gz1.opensdn.io:5101/opensdn-controller-control-base:master-2_7_7_1-2_3 81340e0f4cef 735MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-cassandra:master-2_7_7_1-2_3 89e663de4efb 331MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-haproxy:master-2_7_7_1-2_3 f40cfe80aafb 144MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-kafka:master-2_7_7_1-2_3 03bbacab432f 392MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-rabbitmq:master-2_7_7_1-2_3 fbe84aa9e461 363MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-redis:master-2_7_7_1-2_3 7f7e08fb78e9 171MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-rsyslogd:master-2_7_7_1-2_3 f81d9a83365c 440MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-stunnel:master-2_7_7_1-2_3 61f2491ee834 454MB 0B nexus.gz1.opensdn.io:5101/opensdn-external-zookeeper:master-2_7_7_1-2_3 c96e2b4a4f03 301MB 0B nexus.gz1.opensdn.io:5101/opensdn-general-base:master-2_7_7_1-2_3 8251fabaa4a0 428MB 0B nexus.gz1.opensdn.io:5101/opensdn-kolla-ansible-src:master-2_7_7_1-2_3 1f8e74941574 32.7MB 0B nexus.gz1.opensdn.io:5101/opensdn-vrouter-base:master-2_7_7_1-2_3 9c3cbd7fef6e 743MB 0B nexus.gz1.opensdn.io:5101/tf-dev-sandbox:sandbox-master-2_7_7_1-2_3 f0c94b5e6c58 2.9GB 0B U rockylinux:9 9cc24f05f309 176MB 0B tf-dev-sandbox:compile cef20294fad3 22.2GB 0B tf-dev-sandbox:sandbox-master-2_7_7_1-2_3 f0c94b5e6c58 2.9GB 0B U