How to Update an FTB StoneBlock 3 Server | Safer 2026 Guide
StoneBlock 3's RAM floor is 12 GB, not the 8 GB its scope suggests — and that doesn't change when you update. The rest of the update is routine, with one known config crash worth watching for afterward.
Already crash-looping? See the FTB StoneBlock 3 crash-fix guide, or the FTB StoneBlock 3 pack page.
1. Back up before updating
Automation builds and resource chains live in the world save. Take a full backup before touching the pack files, regardless of how minor the update looks.
2. Don't resize down from the 12 GB floor
It's tempting to assume a newer, possibly more optimized pack version needs less RAM. It doesn't — StoneBlock 3's floor is structural to the pack's design, not a per-version detail. Keep the 12 GB allocation through the update.
3. Install the matching server pack
- Download the server pack for your target version from CurseForge or the FTB App.
- Shut the server down with the stop command before swapping files.
- Install into a clean folder rather than layering the new version over the old one.
4. Check for the ironfurnaces config crash after updating
If the server crashes right at startup post-update, check for a corrupted ironfurnaces-server.toml first — deleting it so it regenerates is the direct fix and applies regardless of pack version.
FAQ
Does updating change the RAM StoneBlock 3 needs?+
No — the pack's 12 GB floor is structural to how it's built, not a per-version quirk. Keep your allocation at 12 GB after updating; dropping back to 8 GB will fail to boot regardless of pack version.
Will an update fix a crashing ironfurnaces config?+
Check the changelog — if a startup crash from a corrupted ironfurnaces-server.toml has been reported fixed, an update might resolve it. Otherwise the direct fix (deleting the file so it regenerates) still applies after updating too.
Do I need the server pack or client pack?+
The server pack specifically, from the same CurseForge or FTB App listing as the client pack.
Update FTB StoneBlock 3 without second-guessing the RAM floor
CoalHost keeps FTB StoneBlock 3 at its measured 12 GB floor through every update and takes an automatic backup first.
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