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ForgeModsModpack4 min read

Install a modpack with Forge

Set up a Forge server, upload a modpack, allocate RAM and troubleshoot common issues.

What is Forge?

Minecraft Forge is a modding platform that lets you run mods on your server. Modpacks are curated collections of mods designed to work together.

Step 1: Install Forge on your server

  1. Go to panel.baires.host → select your server
  2. In the Startup tab, change the server type to Forge
  3. Select the Minecraft version that matches your modpack (e.g., 1.20.1)
  4. Click Reinstall Server to download the Forge jar

Alternatively, install manually:

bash
# Download Forge installer
wget https://maven.minecraftforge.net/net/minecraftforge/forge/1.20.1-47.2.0/forge-1.20.1-47.2.0-installer.jar
java -jar forge-1.20.1-47.2.0-installer.jar --installServer

Step 2: Upload the modpack

  1. Download the server pack version of your modpack (not the client version)
  2. Stop your server in the panel
  3. Upload the server pack zip via Files or SFTP
  4. Extract the contents into the server root directory
  5. Make sure the mods/ folder contains all the mod .jar files

Step 3: Allocate RAM

Modpacks need more RAM than vanilla. In the Startup tab:

  • Light modpacks (50-100 mods): 4-6 GB
  • Medium modpacks (100-200 mods): 6-8 GB
  • Heavy modpacks (200+ mods): 8-12 GB

Set both minimum and maximum heap size:

terminal
-Xms4G -Xmx8G

Step 4: Start and verify

  1. Start the server from the Console tab
  2. First launch takes longer (Forge loads all mods)
  3. Watch for errors in the console
  4. Once you see Done!, the server is ready

Troubleshooting

  • Out of memory: Increase RAM allocation in Startup settings
  • Mod conflict: Check crash-reports/ folder for the problematic mod
  • Version mismatch: Ensure ALL mods match the same Forge and MC version
  • Missing dependency: Some mods require library mods (check mod pages)

Tips

  • Always use the server pack, not the client pack
  • Keep a list of installed mods and their versions
  • Test mod updates on a backup before applying to production
  • Players must have the same mods installed on their client
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