# Installation

## H**ardware Requirements**

<table><thead><tr><th>Node Type</th><th width="155">CPU</th><th width="160">RAM</th><th>Storage</th></tr></thead><tbody><tr><td>Mainnet</td><td>4+</td><td>16+</td><td>240+ GB SSD</td></tr></tbody></table>

## Server preparation

```
sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq chrony liblz4-tool -y
```

***

## GO 1.21.6

```
ver="1.21.6"
wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz"
rm "go$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version
```

***

## Build

```
cd $HOME
git clone https://github.com/Nolus-Protocol/nolus-core.git
cd nolus-core
git checkout 0.8.2-patch
make install
```

```
nolusd version --long | grep -e commit -e version
```

> **Result**
>
> * **version:** 0.8.2-patch
> * **commit:** cb0a18eba21dd16519d526bfdc22f9f108cc5558

***

## Initiation

{% hint style="info" %}
Change \<moniker> to your value, moniker is the name of your validator.
{% endhint %}

```
nolusd init <moniker> --chain-id pirin-1
nolusd config chain-id pirin-1
```

***

## Create / recover wallet

{% hint style="info" %}
Change \<walletname> to the name of your wallet
{% endhint %}

```
nolusd keys add <walletname>
or
nolusd keys add <walletname> --recover
```

***

## Download genesis and addrbook

<pre><code>https://raw.githubusercontent.com/Shoni-O/files/main/mainnet-files/nolus/genesis.json
<strong>https://raw.githubusercontent.com/Shoni-O/files/main/mainnet-files/nolus/addrbook.json
</strong></code></pre>

```
sha256sum $HOME/.nolus/config/genesis.json
```

> **Result**
>
> * 795cd3a16bae2df6c973c4470b3d5f8811e590959aa5b70bd4e377b2b1d046b4

***

## Setup the minimum gas price and Peers

```
sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0.0025unls\"|" $HOME/.nolus/config/app.toml

PEERS="89757803f40da51678451735445ad40d5b15e059@169.155.168.149:26656,c6be81e1757c31012ef201d396981d69d370f37a@162.19.237.150:26656,65d9be311c814f775eda349427d11a39eb6b8623@5.10.19.39:26656,97e4468ac589eac505a800411c635b14511a61bb@134.65.195.225:26656,d3f29b638d089a73651a290c3f2e27b8da663f92@65.109.122.105:60756,d2247f7b919f0781c90ee61958d7044665a22d38@164.152.160.230:26656,488c9ee36fc5ee54e662895dfed5e5df9a5ff2d5@136.243.39.118:26656,c124ce0b508e8b9ed1c5b6957f362225659b5343@134.65.193.172:26656,4868bb0024f54952ae5e2f191e1363ac29aab49c@65.108.71.163:2640,6cceba286b498d4a1931f85e35ea0fa433373057@169.155.170.20:26656"
```

***

## Pruning (optional)

```
sed -i \
  -e 's|^pruning *=.*|pruning = "nothing"|' \
  $HOME/.nolus/config/app.toml
```

## Create a service file

```
tee /etc/systemd/system/nolusd.service > /dev/null <<EOF
[Unit]
Description=nolusd
After=network-online.target

[Service]
User=$USER
ExecStart=$(which nolusd) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF
```

## Start

```
sudo systemctl daemon-reload
sudo systemctl enable nolusd
sudo systemctl restart nolusd && sudo journalctl -u nolusd -f -o cat
```

## Create validator

{% hint style="info" %}
Change walletName, YOUR\_MONIKER\_NAME, YOUR\_KEYBASE\_ID, YOUR\_DETAILS and YOUR\_WEBSITE\_URL to your values
{% endhint %}

```
nolusd tx staking create-validator \
  --amount 1000000unls \
  --from <walletName> \
  --commission-max-change-rate "0.01" \
  --commission-max-rate "0.20" \
  --commission-rate "0.05" \
  --min-self-delegation "1" \
  --pubkey  $(nolusd tendermint show-validator) \
  --moniker YOUR_MONIKER_NAME \
  --chain-id pirin-1 \
  --identity="YOUR_KEYBASE_ID" \
  --details="YOUR_DETAILS" \
  --website="YOUR_WEBSITE_URL" -y
```

## Delete node

```
sudo systemctl stop nolusd && \
sudo systemctl disable nolusd && \
rm /etc/systemd/system/nolusd.service && \
sudo systemctl daemon-reload && \
cd $HOME && \
rm -rf nolus-core && \
rm -rf .nolus && \
rm -rf $(which nolusd)
```


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