The “yum install” command is used to install php-fpm (the FastCGI Process Manager) and some extensions from the official distribution repository. The docker-ce version number might be different. Is Docker is a Microsoft Product? Docker is not a Microsoft product. For instance, the installation on Fedora would be:. From the docker-compose official docs: ‘Compose is a tool for defining and running multi-container Docker applications’ Passbolt provides a docker-compose. 0:8080} inside the Docker container, and port 8080 is mapped to that you have. 04, update the apt utility -- a package manager that includes the apt command -- and upgrade the server. Docker Installation. 8 of Cloudera's Distribution Hadoop (CDH 5) with Quickstarts on Ubuntu 16. In this method, we will get the binary package for Docker Compose. Other JDK's (including Oracle Java) are supported, but you must extend the images yourself to implement that change. Ultimate Guide to Installing Kafka Docker on Kubernetes In this post, we discuss hows to get Kafka Docker upon and running on Kubernetes so you can utilize the full power of your cloud-based data. Here are some guidelines to install Docker on Ubuntu 16. For other ways to install on MacOS, see Install Docker for Mac in Docker's docs. Check Docker Status. Table of ContentsPrerequisitesInstall Docker on CentOSExecuting the Docker Command Without SudoHow to Use Docker CommandWorking with Docker ImagesSearch Docker ImagesDownload Docker ImagesList Downloaded Docker ImagesRemove Docker ImagesWorking with Docker ContainersStart a ContainerList Active Docker ContainersRemove Docker ContainerConclusion Install and Use Docker on CentOS 7 Docker is an. They combine the performance and efficiency of native execution with the abstraction, security, and immutability of virtualization. I’ll be working from a Liquid Web Self Managed CentOS 7 server, and I’ll be logged in as root. Common Pitfalls CPU. You can save it with a. Install GitLab using docker-compose. In this demo, we are going to build a docker image for deploying an angular app to two different environments. For details about installing and using Docker, please refer to the Docker documentation. Docker uses containers to create virtual environments that isolate a TensorFlow installation from the rest of the system. Traefik is natively compliant with every major cluster technology, such as Kubernetes, Docker, Docker Swarm, AWS, Mesos, Marathon, and the list goes on; and can handle many at the same time. How to Enable Hyper-V on Windows 10. Install Docker swarm. In this tutorial, we’ll explain how to install Docker on Debian 10 Buster and explore the basic Docker concepts and commands. Installiert wird auf einem Ubuntu 16. If you want to install docker version from the Ubuntu repository, you can run the apt command below. Table of ContentsPrerequisitesInstall Docker on CentOSExecuting the Docker Command Without SudoHow to Use Docker CommandWorking with Docker ImagesSearch Docker ImagesDownload Docker ImagesList Downloaded Docker ImagesRemove Docker ImagesWorking with Docker ContainersStart a ContainerList Active Docker ContainersRemove Docker ContainerConclusion Install and Use Docker on CentOS 7 Docker is an. Dockerとは? コンテナ型仮想計算機環境LXCをベースに,差分ファイルシステムAUFSと,イメージ・プロセス管理コマンドdockerを組み合わせた,仮想計算機環境です.実行する仮想計算機の環境構築のためにDockerfileというファイルを作成しておくと,自動的に環境が構築されてプロセスが立ち上がり. Docker enables us to run SeAT on any platform capable of running docker itself (which includes Windows!). Docker provides official installation document Install Docker Engine: Get Docker for CentOS; Get Docker for Debian; Get Docker for Ubuntu. - [Instructor] Installing Docker on Linux…is much more straightforward than other platforms. GitHub Gist: instantly share code, notes, and snippets. To do this you will go into your control panel for your droplet, and go into the settings tab and change the kernel pull down to “Ubuntu 13. Hello! If you are not familiar with Docker, it is the popular open source container engine. To install Docker on MacOS desktop, first go to the Docker Store and download Docker Community Edition for Mac. Docker could be defined as an implementation of container using the concept of images. Integrators. Finally, install Docker: sudo apt-get install -y docker-ce Docker should now be installed, the daemon started, and the process enabled to start on boot. Installing via Docker # Installing via Docker. It may yield stable but lower docker version number: $ sudo apt install docker. Learn what leading tech companies are using to automate development and deployment environments. After installing you should be able run commands with docker. To use this package Docker and Docker Compose should be installed on the host machine where it will run. To use Docker, the first step is to download and install the Docker Engine RPM packages. Install Docker Compose; Create a docker-compose. Docker creates the layers by running commands found in a Dockerfile, each command creates a new layer. Docker is an application that treats a whole Linux machine, including its operating system and installed applications, as a computer-within-a-computer, called a “container. Updated on April 19th, 2019 in #dev-environment, #docker. This installation will add docker group to the system without any users. Introduction In this post, we are going to delve in the theory and components of Docker networking. yum install -y yum-utils device-mapper-persistent-data lvm2. With the push of a button, Docker Desktop is the fastest and simplest way to get a Kubernetes cluster running on your desktop machine. Step 5) Installing the Docker packages on Ubuntu $ sudo apt-get install docker-ce The above-given command installs Docker and other additional required packages. 21 hours ago · Doing so encapsulates the dependencies of the tool away from the host system, so you can install any SDKs on the host you want, without having to worry about your global tools. (2) Install Docker CE. After installing OpenShift with a docker storage device set, docker is not using the device. Install Docker from Ubuntu Repository Installation from the standard Ubuntu repository consists of a single apt command. Docker is a tool that allows you to deploy applications inside of software containers. See Install Docker for instructions. It hides the dependency of the graph database, and keeps all files in the ‘projects’ folder, created in the working directory. Finally, install Docker: sudo apt-get install -y docker-ce Docker should now be installed, the daemon started, and the process enabled to start on boot. Last Steps. If you don't have an internet connection on a Windows system, then you can download the Docker file from another (Internet enabled) machine and then copy it to target. To use Docker, the first step is to download and install the Docker Engine RPM packages. If you are familiar with Docker containers, also try Linode Images to capture and deploy larger system profiles. Docker Container, Docker, docker ce, docker on ubuntu, install docker, install docker on ubuntu Docker is container-based application framework, which wraps a specific application with all its dependencies in a container. # systemctl start docker. lock is copied to your working directory, and it will be reused on next Docker run, installing the same dependencies each time. Docker is a containerization system like LXC for virtualizing Linux operating systems using the same kernel as the host operating system. We can do this by running the following command. We do not currently support use of Docker on macOS. Finally, install Docker: sudo apt-get install -y docker-ce 1. For information on how to use Docker on Travis CI Enterprise check out Enabling Docker Builds. Linux systems. There are two ways to install Docker on Windows depending on your Windows version. See the Example docker-compose Project on GitHub for a demonstration and use the full configuration file as a template for your own projects. An image is a combination of a file system and parameters. docker build -t dockeragent:latest. Enabling Docker repository. $ sudo dnf install docker-ce-3:18. Platform Installation. io isn’t available, the package you want to install is called docker. At this point, install Docker on all master and node hosts. Because I am running on Windows 2016 x64, you need to download the x64 version. The base image is centos:7. Either you start the new container as the root user and change ownership from 104 to 472 or you start the upgraded container as user 104. This is not perhaps not one of the intended use cases for Docker, but as Docker experimentation progressed, this has become a popular method to leverage and enable portable GUI applications. Docker must be configured to allow the containers to connect with and send billing data to Azure. We are very excited to announce a new Azure driver for Docker Machine. Install Docker Offline on Centos7 On November 17, 2018 November 18, 2018 By insidepacket In Cloud , Virtualization Recently, I had to build an environment which have a kind of real web application running to test LBaaS site affinity solution,. The way these images are. Docker is a tool that’s meant to benefit the full set of modern IT and software development professionals including the newish field of DevOps. Ubuntu and Node. Docker ToolBox. Docker Enterprise is the easiest and fastest way to use containers and Kubernetes at scale and delivers the fastest time to production for modern applications, securely running them from hybrid cloud to the edge. Install the Proxy Docker image from the Google Container. About Bill Toulas Over five years of experience writing about Linux and open source software on blogs and news websites. The reason is because the developers use and really like using Docker, and scientists have already put much resources into creating Docker images. Anaconda Cloud. Creating a Docker Image with Ubuntu and Java When writing this article, I have used Docker 1. Docker on FreeBSD. This tutorial will help you to install Docker on Fedora 30/29/28/27 operating systems. Docker is an application that allows for deployment of software within virtual containers. 0 is not in the official Ubuntu repositories. If you don't want to use Bitnami, you can still build your own docker image using our df-docker repo on GitHub. Behemoth Docker Images $ docker images REPOSITORY TAG IMAGE ID CREATED SIZE awesome-micro-service latest 61562a134d38 About a minute ago 3. el7 Force the installation of docker-ce with the --nobest option. Docker File. This way your Raspberry Pi will have much more available processing power and memory to run the Docker containers. Step 1 − Click on the Agreement terms and then the Install button to proceed ahead with the installation. We do not currently support use of Docker on macOS. Compose is a tool for defining and running multi-container Docker applications. You can pull it and follow their instructions for deploying a Bitnami package of DreamFactory in Docker. » Docker Vagrant comes with support out of the box for using Docker as a provider. 10 do not have the necessary features Docker requires to run containers; data loss and kernel panics occur frequently under certain conditions. 04 of Ubuntu saw the Docker packages available through the standard Ubuntu repositories. Why use syslog-ng for collecting Docker logs? Docker already provides many drivers for logging, even for central log collection. One of the reasons for this. Install GitLab with Docker Docker and container technology have been revolutionizing the software world for the past few years. Docker runs on a physical Microsoft Windows Server 2016 or a VM with Microsoft Windows Server 2016 running under VMware or Microsoft Hyper-V. Layers are shared between images, saving space, and can be used as a cache for speeding up the building of images. Getting started with Docker. yml is to:. Tried to install the following docker version which is supposed to be stable:. key files, Dockerfile for Docker image creation (NGINX Plus) Running NGINX Open Source in a Docker Container. This article assumes you already have Docker installed and running. To install Docker on Fedora you need a 64-bit version of Fedora 26, 27 or 28. CentOS Docker 安装 Docker支持以下的CentOS版本: CentOS 7 (64-bit) CentOS 6. Then install Docker CE. For older container images published before Windows Server 2019, you should continue to pull them from Docker's registry. If you have tried to install and set up a deep learning framework (e. Check that it’s running: sudo systemctl status docker. A simple application written in C# that prints Hello, World! to the console. The Docker installation package available in the official Ubuntu 19. After creating the Docker account download the Docker 64-bit for Windows (link). 04 repositories but it may not always be the latest version. Next you can pull the latest TensorFlow Serving GPU docker image by running: docker pull tensorflow/serving:latest-gpu This will pull down an minimal Docker image with ModelServer built for running on GPUs installed. Before you install Docker, it’s best to update and upgrade your server. Install the package using standard procedures for your operating system. If any updates are found, install them first. For reasons you'll come to understand in a bit, a host installation of ROS is not required for most of these tutorials unless otherwise. TensorFlow programs are run within this virtual environment that can share resources with its host machine (access directories, use the GPU, connect to the Internet, etc. It is based on Docker's core building blocks including Docker Desktop, Docker Hub, and Docker Engine. How to Install and Use Docker on Debian 9 Stretch. sudo apt install docker-ce. There are several ways to install HASS. Step 8 : Docker starting and enable docker while boot. Choose your Docker* version Intel® System Studio supports two Docker* solutions: Docker for Windows* and Docker Toolbox. Install the psql client on the Compute Engine instance or client machine, if it is not already installed. This article provides a script that will completely uninstall Docker along with all program information on your Windows 10 system. Installing Redis locally. Add the pi user to the docker group, so it can run docker commands: sudo usermod -aG docker pi. The process for installing Docker EE on Windows Server is quite simple with the introduction of the OneGet provider PowerShell Module. Unfortunatly that process ended up taking the better half of my morning. Otherwise, feel free to open an issue in the issues tracker on Github. Docker enables developers and IT operations to build, secure and manage applications without technology or infrastructure lock in. Either you start the new container as the root user and change ownership from 104 to 472 or you start the upgraded container as user 104. Afterward, you can install and update Docker from the repository. Check if the Hardware Virtualization is Enabled 2. Installing Docker on Raspberry Pi is just a matter of running a few commands. Let's get started: Step-1. To complete the installation, run: sudo triton-docker-install. Docker ToolBox. Docker Enterprise is the easiest and fastest way to use containers and Kubernetes at scale and delivers the fastest time to production for modern applications, securely running them from hybrid cloud to the edge. Ubuntu and Node. For RHEL 7, you must have a valid Redhat subscription to enable Extras rpm's repository on the server. I installed the Container feature , however docker is required to run container on windows server 2016. Anaconda Cloud. On an Intel processor, this means your CPU supports VT-x , VT-d, and VT-x with EPT (all three virtualization features must be supported). Portainer is also a management user interface that allows you to easily manage your Docker host. Docker Command Line; Docker Compose; Docker Notary; Install Docker from downloading the macOS docker app from the docker store. Learn best practices when using Elasticsearch plugins within Docker for easier container management. Learn How to Install Docker on Ubuntu 18. Docker-SSH uses the same logic as the Docker executor, but instead of executing the script directly, it uses an SSH client to connect to the build container. In this post, we'll discuss how to run Azure CLI as a container through a newly published Docker Hub image and demonstrate how to take advantage of Azure CLI Docker image to quickly start managing your Azure services by using a single command. 8+ on Linux or on Docker for Mac/Windows. A minimum of 4GB RAM assigned to Docker. Easily update both applications to the latest versions. Docker Compose is an open source utility which came into existence after the Fig application as its better and refined version. Docker Container, Docker, docker ce, docker on ubuntu, install docker, install docker on ubuntu Docker is container-based application framework, which wraps a specific application with all its dependencies in a container. For Windows 7 (and higher) users, Docker provides Docker Toolbox, an installer that includes everything needed to configure and launch a Docker environment. It's still happening even with the build ver. Docker images for MySQL are optimized for code size, which means they only include crucial components that are expected to be relevant for the majority of users who run MySQL instances in Docker containers. We do not currently support use of Docker on macOS. In this tip, we will learn how to install and run a SQL Server Linux container image using a Docker on the Ubuntu operating system. Registry providers. Install the latest versions of Node. You can save it with a. They contain open source. We will need to install an ODBC driver inside of a Docker image so that it can run inside of a container. If you hover your mouse over it, it will say “Docker is Starting”. For full documentation, type docker run --help or visit the help page. From within a Dockerfile something like the following should do the trick: RUN apt-get update && \ apt-get install -y net-tools From memory it's best practice to combine the update and the package installation lines to prevent docker caching the update step which can result in out-dated packages being installed. Swarm is controlled through the familiar Docker CLI. Verify that Docker CE is installed correctly by running the hello-world image. I recommend installing docker using the repository so that when the new version is available, you can get the update from repository easily. Step 2: Install Docker. Upgrade kernel. Installiert wird auf einem Ubuntu 16. You will see a docker icon appear on your windows task bar. sudo apt install docker. Jump to the testing your Docker installation. Use the following tables to choose the best installation path for you. Download Docker for Windows for free. Hello, I've been trying to turn on my computer when I'm away from the house using both mobile data and another WiFi connection. Step 1 − Before installing Docker, you first have to ensure that you have the right Linux kernel version running. This section shows you how to do just that. Now in this article I will share the steps to install docker on Linux and to configure thin provisioning storage for Docker, Now Docker is one of the most common container solution, but it’s not the only container solution. 6 Starting and Checking the Status of the Docker Engine. In this article, we are going to install Docker Engine EE on Windows Server 2019. To install Docker on your CentOS 7 server follow the steps below:. According to the Docker website, you don't need to be experienced using a. First install nvidia-docker. Install Docker Before you install Docker CE for the first time on a new host machine, you need to set up the Docker repository. Here is a quick example showing how to connect a Kong container to a Cassandra or PostgreSQL container. In addition to the package installation, the One-Click also: Enables the UFW firewall to allow only SSH (port 22, rate limited) and 2375/2376 for unencrypted/encrypted communication with the Docker daemon, respectively. We also have a Docker Compose template with built-in orchestration and scalability. 04 LTS (aber alle Befehle funktionieren auch auf Debian). After the installation is complete, start the docker service and enable it to launch everytime at system boot. https://truthseekers. 6 such as using vagrant + docker which further automates the whole process or by using shell scripts, this article however shows you the basics of how to accomplish the same task. el7 Force the installation of docker-ce with the --nobest option. Then you can add - docker commands to your build as shown in the following examples. Checked the win. VIB and Offline Depot are the packages built to install the backend for the service on ESX. There are several ways to install HASS. Other than the Docker program itself, there's nothing else to install before you run the application. I've tried the above steps, however, configuring docker DNS to Google DNS does not work for my laptop. After logging into the VM, install the Docker Service using the following command. To do this, you need to have Docker client properly installed and configured on your machine. The latest Tweets from Docker (@Docker). 5 (64-bit) 或更高的版本 前提条件 目前,CentOS 仅发行版本中的内核支持 Docker。 Docker 运行在 CentOS 7 上,要求系统为64位、系统内核版本为 3. With a Database. 21 hours ago · Doing so encapsulates the dependencies of the tool away from the host system, so you can install any SDKs on the host you want, without having to worry about your global tools. Either you start the new container as the root user and change ownership from 104 to 472 or you start the upgraded container as user 104. I ran into the same problem when installing Docker Desktop on my Windows 10 Pro laptop after that I had removed Hyper-V from it. 0+ compatible images of InfluxDB, Telegraf and Kapacitor. ZIP and TAR; Ubuntu and Debian; RHEL and CentOS; Docker; Confluent CLI; Install using Ansible; Confluent Platform Docker Images. Easy Kafka Tutorial. In this tip, we will learn how to install and run a SQL Server Linux container image using a Docker on the Ubuntu operating system. 04 repository, it may not always be the latest version. Click on the platform of your choice to install Docker on your machine. This allows Docker to be installed natively. The Azure CLI is a command-line tool providing a great experience for managing Azure resources. You will not need to synchronize all the images (total 100+), and depending on your requirements you will need: Red Hat OpenShift Container Platform infrastructure. A working Docker installation—for information about how to install Docker, check out our getting started with Docker tutorial. Docker is a special tool that's designed especially for easier creation, deployment, and running Linux apps using "containers". Kernels older than 3. To install on another distribution, see the official installation page. Getting started with ROS and Docker Description: This tutorial walks you through installing Docker and spinning up your first ROS container on your computer. If you are familiar with Docker containers, also try Linode Images to capture and deploy larger system profiles. Doing so however, does not give you an option to install Kitematic on Windows during Docker setup. Install pre-built Docker images. sudo docker run hello-world The latest version can be found here. The process for installing Docker EE on Windows Server is quite simple with the introduction of the OneGet provider PowerShell Module. Install Docker on Debian. Oracle publishes Docker Engine RPMs for Oracle Linux 6 and Oracle Linux 7 on the public yum site and on the Unbreakable Linux Network (ULN). How To Install Latest Docker Compose on Linux. Finally, install Docker: sudo apt-get install -y docker-ce Docker should now be installed, the daemon started, and the process enabled to start on boot. Installing on Docker Single-node. Installation with Docker. CentOS is a well-known Linux distribution with the ability to deploy containers with Docker. TensorFlow programs are run within this virtual environment that can share resources with its host machine (access directories, use the GPU, connect to the Internet, etc. Ultimate Guide to Installing Kafka Docker on Kubernetes In this post, we discuss hows to get Kafka Docker upon and running on Kubernetes so you can utilize the full power of your cloud-based data. docker build. These images are free to use under the Elastic license. For information on how to use Docker on Travis CI Enterprise check out Enabling Docker Builds. dmg がダウンロードされるのでそれを起動して、Docker. Step 3: install the app in your Docker container Now we can install our Java application – in this case Bitbucket Server – in our newly created durdn/java7 image. Docker Enterprise is the only end-to-end platform for building, sharing and running container-based applications, from the developer's desktop to the cloud and managing the entire application lifecycle at every stage. Install Docker on CentOS. Platform Installation. 04 LTS, if you are running different Linux distribution, see official Docker documentation. This installation will add docker group to the system without any users. Docker is a containerization platform that allows you to quickly build, test and deploy applications as portable, self-sufficient containers that can virtually run everywhere. Installation and setup. > Install Docker on CentOS, RedHat & Fedora > Install Docker on Ubuntu & Debian. The simplest way to get started is to download the official Docker Toolbox. (2) Install Docker CE. Enjoy! Running Pi-hole Docker. sudo apt install docker. They contain open source. The Docker Desktop installation includes Docker Engine, Docker CLI client, Docker Compose, Docker Machine, and Kitematic. Docker is a technology that allows you to build, run, test, and deploy distributed applications that are based on Linux containers. For example, you can run Jenkins in a Docker container without having Java installed on your. yum install -y yum-utils device-mapper-persistent-data lvm2. Install with Docker¶. 03 and confirm that it is completed. Check that the installation was successful by running the built-in “Hello World” program: docker run hello-world Install the GitLab EE Image. For RHEL、Oracle Linux、SLES, it can only install Docker EE which needs to register Docker Store first. Docker is an open-source project that makes creating and managing Linux containers really easy. Ready-made images from docker. NVIDIA Jetson Nano - Upgrade Docker Engine Mon, Apr 22, 2019. You will see a docker icon appear on your windows task bar. Docker and container technology have been revolutionizing the software world for the past few years. For instance, the installation on Fedora would be:. 设置开机自启动并启动 Docker-ce(安装成功后默认已设置并启动,可忽略) sudo systemctl enable docker sudo systemctl start docker. Below you can find details on how to install BookStack on your own hosting. In Docker terminology, an image is an object that you can download, and reuse to instantiate new containers. For reasons you'll come to understand in a bit, a host installation of ROS is not required for most of these tutorials unless otherwise. # pip install docker==3. We have to import the Docker repository and we can easily install the docker on Ubuntu. Sometimes we want to install a specific version of MariaDB, MariaDB Galera Cluster, or MaxScale on a certain system, but no packages are available. Recently, I was setting up a new development laptop with Ubuntu 14. if you open Virtual Box, you should see boot2docker-vm running there. Docker installation; Docker Hub account (NGINX Open Source) nginx-repo. Install Docker; Start Docker. If you are using a dedicated volume group, you should also remove the volume group and any associated physical volumes before reconfiguring docker-storage-setup according to the instructions above. - [Instructor] Installing Docker on Linux…is much more straightforward than other platforms. Docker Community Edition (CE) is ideal for developers and small teams looking to get started with Docker and experimenting with container-based apps. Step 2: Install Docker. Step 4 – Run Docker. “Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications. The Docker community maintains WordPress and WP-CLI images. This is the ONLY file you will need. Then, using a single command, you create and start all the services from your configuration. Before you install Docker Engine - Community for the first time on a new host machine, you need to set up the Docker repository. # yum install docker-ce Step 3: Start Docker Service. With Docker compose you can easily configure, install, and upgrade your Docker-based GitLab installation. Do remember, however, that if the upgrade includes the kernel, you’ll need to reboot the server so the changes will take affect. Docker on FreeBSD relies heavily on ZFS, jail and the 64bit Linux compatibility layer that was introduced in June, 2015. SUSE uses cookies to give you the best online experience. Docker is a special tool that's designed especially for easier creation, deployment, and running Linux apps using "containers". Finally, install Docker: sudo apt-get install -y docker-ce Docker should now be installed, the daemon started, and the process enabled to start on boot. Installing via Docker # Installing via Docker. It does everything the docker command does, but from within Python – run containers, manage them, pull/push images, etc. This will install the platform-specific versions of the Docker and Docker Compose CLI tools. Last Steps. sh $ sh get-docker. With Docker, users can download pre-configured apps without the hassle of the installation and configuration process. Login to your Server VM and check for Windows updates. Installing a Java agent in a Docker container involves the same procedure for a standard Java agent install. Combining Jenkins and Docker together can bring improved speed and consistency to your automation tasks, which is why we've collected some hopefully helpful resources on this page to get you started! Docker is an open-source project that automates the deployment of applications inside software. You will see a docker icon appear on your windows task bar. Docker is a containerization utility that allows you to develop your application once and deploy it everywhere. To use these images you will need to have Docker installed and operational. Check that the installation was successful by running the built-in “Hello World” program: docker run hello-world Install the GitLab EE Image. He talked about some of the filesystem performance problems that can arise when using a shared volume from the host machine on Mac OS X, along with some potential workarounds and word of some upcoming performance improvements. GitLab Docker images Docker and container technology have been revolutionizing the software world for the past few years. Docker Installer Method: Windows 10 64-bit Professional, Enterprise, and Education Versions include Hyper-V and therefore will support Docker natively. When I'm on the same network the wake up command works but if I'm using mobile data I'll get the message "Wake up command failed" and when I'm on another network it says "wake up command sent" but nothing happens.