[DOCS] Add Getting started guide (#20088)

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Chris Chinchilla 2019-10-30 12:34:07 +01:00 committed by Felix Lange
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Getting started:
Install and build:
- Downloads: /downloads
- Installing Ethereum: /docs/Building-Ethereum
@ -20,4 +21,4 @@ Developers:
- Mobile Clients: /docs/Mobile-Clients/Libraries-and-Inproc-Ethereum-Nodes
- Native DApps: /docs/Native-DApps/Go-bindings-to-Ethereum-contracts
- Active go-ethereum projects: /docs/Active-go-ethereum-projects
- Other documents: /docs/other-documents
- Other documents: /docs/other-documents

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---
title: Getting Started with Geth
permalink: getting-started
---
## Installing
You can install the Go implementation of Ethereum in a variety of ways. These include installing it via your favorite package manager; downloading a standalone pre-built binary; running as a docker container; or building it yourself. This section highlights the common options, but you can find others in the left hand menu, or in the [install and build](/install-and-build/Installing-Geth) section.
### Install on macOS via Homebrew
You can install go-ethereum on macOS using [our Homebrew tap](https://github.com/ethereum/homebrew-ethereum). If you don't have Homebrew, [install it first](http://brew.sh/).
Then run the following commands to add the tap and install geth:
```shell
brew tap ethereum/ethereum
brew install ethereum
```
_[Read this guide](/install-and-build/Installing-Geth#install-on-macos-via-homebrew) further Homebrew options._
### Install on Ubuntu via PPAs
You can install go-ethereum on Ubuntu-based distributions using the built-in launchpad PPAs (Personal Package Archives). We provide a single PPA repository with both our stable and our development releases for Ubuntu versions `trusty`, `xenial`, `zesty` and `artful`.
Install dependencies first:
```shell
sudo apt-get install software-properties-common
```
To enable our launchpad repository run:
```shell
sudo add-apt-repository -y ppa:ethereum/ethereum
```
After that you can install the stable version of go-ethereum:
```shell
sudo apt-get update
sudo apt-get install ethereum
```
_[Read this guide](/install-and-build/Installing-Geth#install-on-ubuntu-via-ppas) for further Ubuntu options._
### Install on Windows
_Although we were shipping Chocolatey packages for a time after the Frontier release, the constant manual approval process led to us stopping distribution. We will try to negotiate trusted package status for go-ethereum so the Chocolatey option is available again._
Until then grab a Windows installer from our [downloads](https://geth.ethereum.org/downloads) page.
### Download standalone binary
We distribute all our stable releases and development builds as standalone binaries. These are useful for scenarios where you'd like to: a) install a specific version of our code (e.g., for reproducible environments); b) install on machines without internet access (e.g., air gapped computers); or c) do not like automatic updates and would rather manually install software.
We create the following standalone binaries:
- 32bit, 64bit, ARMv5, ARMv6, ARMv7 and ARM64 archives (`.tar.gz`) on Linux
- 64bit archives (`.tar.gz`) on macOS
- 32bit and 64bit archives (`.zip`) and installers (`.exe`) on Windows
For all binaries we provide two options, one containing only Geth, and another containing Geth along with all the developer tools from our repository (`abigen`, `bootnode`, `disasm`, `evm`, `rlpdump`). Read our [`README`](https://github.com/ethereum/go-ethereum#executables) for more information about these executables.
To download these binaries, head to the [Go Ethereum Downloads](https://geth.ethereum.org/downloads) page.
### Run inside docker container
We maintain a Docker image with recent snapshot builds from our `develop` branch on DockerHub. In addition to the container based on Ubuntu (158 MB), there is a smaller image using Alpine Linux (35 MB). To use the alpine [tag](https://hub.docker.com/r/ethereum/client-go/tags), replace `ethereum/client-go` with `ethereum/client-go:alpine` in the examples below.
To pull the image and start a node, run these commands:
```shell
docker pull ethereum/client-go
docker run -it -p 30303:30303 ethereum/client-go
```
_[Read this guide](/install-and-build/Installing-Geth#run-inside-docker-container) for further Docker options._
## Starting a node
### Create an account
Before starting Geth you first need to create an account that represents a key pair. Use the following command to create a new account and set a password for that account:
```shell
geth account new
```
_[Read this guide](/interface/Managing-your-accounts) for more details on importing existing Ethereum accounts and other uses of the `account` command._
### Sync modes
Running Geth starts an Ethereum node that can join any existing network, or create a new one. You can start Geth in one of three different sync modes using the `--syncmode "{mode}"` argument that determines what sort of node it is in the network.
These are:
- **Full**: Downloads all blocks (including headers, transactions and receipts) and generates the state of the blockchain incrementally by executing every block.
- **Fast** (Default): Downloads all blocks (including headers, transactions and receipts), verifies all headers, and downloads the state and verifies it against the headers.
- **Light**: Downloads all block headers, block data, and verifies some randomly.
For example:
```shell
geth --syncmode "light"
```
### Connect to node
Once you have an account and Geth is running, you can interact with it by opening another terminal and using the following command to open a JavaScript console:
```shell
geth attach
```
In the console you can issue any of the Geth commands, for example, to list all the accounts on the node, use:
```shell
eth.accounts
```
You can also enter the console directly when you start the node with the `console` command:
```shell
geth --syncmode "light" console
```