Files
lighthouse/book/src/pi.md
Divma ff9b09d964 upgrade to libp2p 0.52 (#4431)
## Issue Addressed

Upgrade libp2p to v0.52

## Proposed Changes
- **Workflows**: remove installation of `protoc`
- **Book**: remove installation of `protoc`
- **`Dockerfile`s and `cross`**: remove custom base `Dockerfile` for cross since it's no longer needed. Remove `protoc` from remaining `Dockerfiles`s
- **Upgrade `discv5` to `v0.3.1`:** we have some cool stuff in there: no longer needs `protoc` and faster ip updates on cold start
- **Upgrade `prometheus` to `0.21.0`**, now it no longer needs encoding checks
- **things that look like refactors:** bunch of api types were renamed and need to be accessed in a different (clearer) way
- **Lighthouse network**
	- connection limits is now a behaviour
	- banned peers no longer exist on the swarm level, but at the behaviour level
	- `connection_event_buffer_size` now is handled per connection with a buffer size of 4
	- `mplex` is deprecated and was removed
	- rpc handler now logs the peer to which it belongs

## Additional Info

Tried to keep as much behaviour unchanged as possible. However, there is a great deal of improvements we can do _after_ this upgrade:
- Smart connection limits: Connection limits have been checked only based on numbers, we can now use information about the incoming peer to decide if we want it
- More powerful peer management: Dial attempts from other behaviours can be rejected early
- Incoming connections can be rejected early
- Banning can be returned exclusively to the peer management: We should not get connections to banned peers anymore making use of this
- TCP Nat updates: We might be able to take advantage of confirmed external addresses to check out tcp ports/ips


Co-authored-by: Age Manning <Age@AgeManning.com>
Co-authored-by: Akihito Nakano <sora.akatsuki@gmail.com>
2023-08-02 00:59:34 +00:00

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Markdown

# Raspberry Pi 4 Installation
Tested on:
- Raspberry Pi 4 Model B (4GB)
- `Ubuntu 20.04 LTS (GNU/Linux 5.4.0-1011-raspi aarch64)`
*Note: [Lighthouse supports cross-compiling](./cross-compiling.md) to target a
Raspberry Pi (`aarch64`). Compiling on a faster machine (i.e., `x86_64`
desktop) may be convenient.*
### 1. Install Ubuntu
Follow the [Ubuntu Raspberry Pi installation instructions](https://ubuntu.com/download/raspberry-pi). **A 64-bit version is required**
A graphical environment is not required in order to use Lighthouse. Only the
terminal and an Internet connection are necessary.
### 2. Install Packages
Install the Ubuntu dependencies:
```bash
sudo apt install -y git gcc g++ make cmake pkg-config llvm-dev libclang-dev clang
```
> Tips:
>
> - If there are difficulties, try updating the package manager with `sudo apt
> update`.
### 3. Install Rust
Install Rust as per [rustup](https://rustup.rs/):
```bash
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
```
> Tips:
>
> - During installation, when prompted, enter `1` for the default installation.
> - After Rust installation completes, try running `cargo version` . If it cannot
> be found, run `source $HOME/.cargo/env`. After that, running `cargo version` should return the version, for example `cargo 1.68.2`.
> - It's generally advisable to append `source $HOME/.cargo/env` to `~/.bashrc`.
### 4. Install Lighthouse
```bash
git clone https://github.com/sigp/lighthouse.git
cd lighthouse
git checkout stable
make
```
>
> Compiling Lighthouse can take up to an hour. The safety guarantees provided by the Rust language
unfortunately result in a lengthy compilation time on a low-spec CPU like a Raspberry Pi. For faster
compilation on low-spec hardware, try [cross-compiling](./cross-compiling.md) on a more powerful
computer (e.g., compile for RasPi from your desktop computer).
Once installation has finished, confirm Lighthouse is installed by viewing the
usage instructions with `lighthouse --help`.