Files
ubuntu-post-install/scripts/setup-swbf2-linux.sh
T
Claude 0c56837505 fix: detect existing EA Desktop install, skip MSI extraction if Link2EA.exe present
On native Linux Steam, EA App self-installs via EAappInstaller.exe on first
SWBF2 launch. Link2EA.exe appears in the Wine prefix without any MSI extraction.
Script now checks for Link2EA.exe first and skips steps 2-3 (MSI locate +
extract) if EA Desktop is already installed, proceeding directly to writing
registry fix files and the launch wrapper.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
2026-06-22 17:51:58 +00:00

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#!/bin/bash
# setup-swbf2-linux.sh — Fix Star Wars Battlefront II (2017, AppID 1237950)
# for native Linux Steam with GE-Proton (no Wolf / no Docker).
#
# What this does:
# 1. Extracts EA Desktop from the bundled ea_app.msi using msiextract —
# bypasses JunoConfigureRegistry, a .NET custom action Wine cannot run,
# which causes the full MSI installer to roll back.
# 2. Copies EA Desktop files (Link2EA.exe, EALocalHostSvc.exe, etc.) into the
# game's Wine prefix.
# 3. Writes link2ea_fix.reg and ea_services.reg into drive_c so they survive
# Wine prefix operations.
# 4. Installs a launch wrapper that imports the .reg files via Proton's own
# wine binary on every launch — required because direct edits to system.reg
# are overwritten when wineserver flushes to disk on shutdown.
# 5. Sets Steam launch options for SWBF2.
#
# Prerequisites — do these BEFORE running this script:
# a. GE-Proton10-34 (or later) installed via ProtonUp-Qt or manually.
# In Steam: SWBF2 → Properties → Compatibility → Force GE-Proton.
# b. msitools installed:
# sudo apt-get install -y msitools # Debian/Ubuntu
# sudo dnf install -y msitools # Fedora
# c. Launch SWBF2 once — wait ~10 seconds for the "Origin is not installed"
# error, then close it. This creates the Wine prefix and drops ea_app.msi.
# d. Your EA account is linked to your Steam account at ea.com (one-time;
# persists on EA's servers across reinstalls).
#
# After this script completes:
# Launch SWBF2. Let Vulkan shaders compile on first run (several minutes,
# only once). EA App authenticates via your linked Steam/EA account.
#
# Usage:
# chmod +x setup-swbf2-linux.sh
# ./setup-swbf2-linux.sh
set -euo pipefail
APPID="1237950"
WRAPPER_PATH="$HOME/.local/bin/ea_install.sh"
GE_PROTON_VERSION="GE-Proton10-34"
echo "=== SWBF2 (2017) Linux Steam Setup ==="
echo ""
# ── Locate Steam home ───────────────────────────────────────────────────────
find_steam_home() {
for candidate in \
"$HOME/.steam/steam" \
"$HOME/.local/share/Steam" \
"$HOME/.var/app/com.valvesoftware.Steam/.steam/steam"; do
if [ -d "$candidate/steamapps" ]; then
echo "$candidate"
return 0
fi
done
return 1
}
STEAM_HOME=$(find_steam_home) || {
echo "ERROR: Steam home not found. Is Steam installed and have you launched it at least once?"
exit 1
}
echo "Steam home: $STEAM_HOME"
# ── Install GE-Proton if not present ───────────────────────────────────────
GEP_DIR="$HOME/.steam/root/compatibilitytools.d"
mkdir -p "$GEP_DIR"
if [ -d "$GEP_DIR/$GE_PROTON_VERSION" ]; then
echo "GE-Proton: $GE_PROTON_VERSION already installed"
else
echo "Installing $GE_PROTON_VERSION..."
GEP_URL="https://github.com/GloriousEggroll/proton-ge-custom/releases/download/$GE_PROTON_VERSION/$GE_PROTON_VERSION.tar.gz"
GEP_TMP="/tmp/$GE_PROTON_VERSION.tar.gz"
if ! curl -L --progress-bar -o "$GEP_TMP" "$GEP_URL"; then
echo "ERROR: Download failed. Check your internet connection and try again."
exit 1
fi
tar -xzf "$GEP_TMP" -C "$GEP_DIR"
rm -f "$GEP_TMP"
echo "GE-Proton installed to: $GEP_DIR/$GE_PROTON_VERSION"
echo ""
echo "IMPORTANT: Restart Steam now, then:"
echo " Right-click SWBF2 → Properties → Compatibility"
echo " → Force a specific Steam Play compatibility tool → $GE_PROTON_VERSION"
echo "Then re-run this script."
echo ""
read -rp "Press Enter after you have restarted Steam and set GE-Proton, or Ctrl+C to abort..."
fi
PFX_C="$STEAM_HOME/steamapps/compatdata/$APPID/pfx/drive_c"
# ── Step 1: verify Wine prefix exists ──────────────────────────────────────
echo ""
if [ ! -d "$PFX_C" ]; then
echo "ERROR: Wine prefix not found at $PFX_C"
echo ""
echo "Required before running this script:"
echo " 1. In Steam: right-click SWBF2 → Properties → Compatibility"
echo " → Force GE-Proton10-34 (or later)"
echo " 2. Click Play on SWBF2 — wait ~30 seconds then close it"
echo " 3. Re-run this script"
exit 1
fi
echo "[1/6] Wine prefix: OK"
# ── Steps 2 & 3: ensure EA Desktop is in the Wine prefix ───────────────────
# On native Linux Steam, EA App may self-install via EAappInstaller.exe when
# SWBF2 is first launched. If Link2EA.exe is already present, skip extraction.
EA_DEST_BASE="$PFX_C/Program Files/Electronic Arts/EA Desktop"
LINK2EA=$(find "$EA_DEST_BASE" -name "Link2EA.exe" 2>/dev/null | head -1)
if [ -n "$LINK2EA" ]; then
echo "[2/6] EA Desktop already installed: OK"
echo " ($LINK2EA)"
echo "[3/6] Skipping MSI extraction — EA Desktop files already present"
else
echo "[2/6] EA Desktop not found — searching for ea_app.msi..."
MSI=""
for _dir in \
"$PFX_C" \
"$STEAM_HOME/steamapps/common/STAR WARS Battlefront II" \
"$STEAM_HOME/steamapps/common" \
"$STEAM_HOME/steamapps"; do
_found=$(find "$_dir" -maxdepth 4 -name "ea_app.msi" 2>/dev/null | head -1)
if [ -n "$_found" ]; then MSI="$_found"; break; fi
done
if [ -z "$MSI" ]; then
echo ""
echo "ERROR: ea_app.msi not found and EA Desktop not installed."
echo ""
echo "Launch SWBF2 once from Steam with GE-Proton10-34 set in Compatibility."
echo "Let it run for 30+ seconds so EA App can install, then close it and re-run."
exit 1
fi
MSI_SIZE=$(stat -c%s "$MSI")
if [ "$MSI_SIZE" -lt 50000000 ]; then
echo "WARNING: ea_app.msi is only $MSI_SIZE bytes (expected ~227 MB). Re-run when download completes."
exit 1
fi
echo " Found: $MSI ($(( MSI_SIZE / 1048576 )) MB)"
echo "[3/6] Extracting EA Desktop files from MSI (~30s)..."
if ! command -v msiextract >/dev/null 2>&1; then
echo "msitools not found — installing..."
if command -v apt-get >/dev/null 2>&1; then
sudo apt-get install -y msitools
elif command -v dnf >/dev/null 2>&1; then
sudo dnf install -y msitools
elif command -v pacman >/dev/null 2>&1; then
sudo pacman -S --noconfirm msitools
else
echo "ERROR: Cannot auto-install msitools — install it manually and re-run."
exit 1
fi
fi
EXTRACT_DIR="/tmp/ea_app_extracted_$$"
rm -rf "$EXTRACT_DIR"
mkdir -p "$EXTRACT_DIR"
if ! msiextract -C "$EXTRACT_DIR" "$MSI" >/dev/null 2>&1; then
echo "ERROR: msiextract failed."; rm -rf "$EXTRACT_DIR"; exit 1
fi
EA_SRC=$(find "$EXTRACT_DIR" -maxdepth 5 \
-path "*/Electronic Arts/EA Desktop/EA Desktop" -type d 2>/dev/null | head -1)
if [ -z "$EA_SRC" ] || [ ! -f "$EA_SRC/Link2EA.exe" ]; then
echo "ERROR: Link2EA.exe not found after extraction."
rm -rf "$EXTRACT_DIR"; exit 1
fi
EA_VERSION="14.2.0.3345"
if [ -L "$EA_DEST_BASE/EA Desktop" ]; then
_linked=$(readlink "$EA_DEST_BASE/EA Desktop" 2>/dev/null || true)
[ -n "$_linked" ] && EA_VERSION="$_linked"
fi
EA_DEST="$EA_DEST_BASE/$EA_VERSION"
mkdir -p "$EA_DEST"
cp -r "$EA_SRC/." "$EA_DEST/"
rm -f "$EA_DEST_BASE/EA Desktop"
ln -sf "$EA_VERSION" "$EA_DEST_BASE/EA Desktop"
rm -rf "$EXTRACT_DIR"
LINK2EA=$(find "$EA_DEST_BASE" -name "Link2EA.exe" 2>/dev/null | head -1)
[ -z "$LINK2EA" ] && { echo "ERROR: Install failed — Link2EA.exe missing."; exit 1; }
echo " EA Desktop $EA_VERSION installed"
fi
# ── Step 5: write .reg files and launch wrapper ─────────────────────────────
echo "[5/6] Writing registry fix files and launch wrapper..."
# link2ea:// protocol handler — tells Wine how to find Link2EA.exe.
# GE-Proton's steam.exe intercepts link2ea:// URLs and uses this handler
# to launch Link2EA.exe, which hands off to EA Desktop for authentication.
cat > "$PFX_C/link2ea_fix.reg" << 'REGEOF'
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\link2ea]
@="URL:link2ea Protocol"
"URL Protocol"=""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\link2ea\shell\open\command]
@="\"C:\\Program Files\\Electronic Arts\\EA Desktop\\EA Desktop\\Link2EA.exe\" \"%1\""
REGEOF
# EA Windows services — EALocalHostSvc provides local IPC that Link2EA.exe
# needs. Without it launch fails with RPC_S_SERVER_UNAVAILABLE (0x800706ba).
cat > "$PFX_C/ea_services.reg" << 'REGEOF'
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EALocalHostSvc]
"Type"=dword:00000010
"Start"=dword:00000002
"ErrorControl"=dword:00000001
"ImagePath"="C:\\Program Files\\Electronic Arts\\EA Desktop\\EA Desktop\\EALocalHostSvc.exe"
"DisplayName"="EA Local Host Service"
"ObjectName"="LocalSystem"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EABackgroundService]
"Type"=dword:00000010
"Start"=dword:00000002
"ErrorControl"=dword:00000001
"ImagePath"="C:\\Program Files\\Electronic Arts\\EA Desktop\\EA Desktop\\EABackgroundService.exe"
"DisplayName"="EA Background Service"
"ObjectName"="LocalSystem"
REGEOF
# Launch wrapper. Runs regedit through Proton's launch chain on every launch
# so registry entries survive wineserver restarts. Direct edits to system.reg
# are overwritten when wineserver flushes to disk on shutdown.
mkdir -p "$HOME/.local/bin"
cat > "$WRAPPER_PATH" << 'WRAPEOF'
#!/bin/bash
echo "=== launch $(date) ===" >> /tmp/ea_install.log
"$1" "$2" "$3" "$4" "$5" "$6" "$7" "$8" "$9" "${10}" "${11}" regedit /S "C:\\link2ea_fix.reg"
"$1" "$2" "$3" "$4" "$5" "$6" "$7" "$8" "$9" "${10}" "${11}" regedit /S "C:\\ea_services.reg"
exec "$@"
WRAPEOF
chmod +x "$WRAPPER_PATH"
echo " .reg files written, wrapper installed at $WRAPPER_PATH"
# ── Step 6: set launch options in localconfig.vdf ──────────────────────────
echo "[6/6] Setting Steam launch options..."
STEAM_UID=$(ls "$STEAM_HOME/userdata/" 2>/dev/null | head -1)
if [ -z "$STEAM_UID" ]; then
echo "WARNING: No Steam userdata found. Sign in to Steam first, then re-run."
echo " Or set launch options manually — see below."
else
CFG_FILE="$STEAM_HOME/userdata/$STEAM_UID/config/localconfig.vdf"
if [ ! -f "$CFG_FILE" ]; then
echo "WARNING: localconfig.vdf not found. Launch Steam first, then re-run."
else
LAUNCH_OPT="$WRAPPER_PATH %command%"
python3 - "$CFG_FILE" "$LAUNCH_OPT" << 'PYEOF'
import sys, re
path, opt = sys.argv[1], sys.argv[2]
with open(path) as f:
c = f.read()
new = re.sub(r'("1237950".*?"LaunchOptions"\s*)"[^"]*"', rf'\1"{opt}"', c, flags=re.DOTALL)
if new == c:
new = re.sub(r'("1237950"\s*\n\s*\{)', rf'\1\n\t\t\t\t"LaunchOptions"\t\t"{opt}"', c)
if new == c:
print("WARNING: 1237950 block not found — set launch options manually (see below).")
sys.exit(0)
with open(path, 'w') as f:
f.write(new)
print(" LaunchOptions set.")
PYEOF
fi
fi
echo ""
echo "=== Setup complete ==="
echo ""
echo "Launch options set to: $WRAPPER_PATH %command%"
echo ""
echo "Next steps:"
echo " 1. Launch SWBF2 from Steam"
echo " 2. Let Vulkan shaders compile — do NOT skip (takes several minutes, once only)"
echo " 3. EA App authenticates automatically if your Steam and EA accounts are linked"
echo " 4. Game launches"
echo ""
echo "If launch options were not set automatically, set them in Steam:"
echo " Right-click SWBF2 → Properties → Launch Options:"
echo " $WRAPPER_PATH %command%"
echo ""
echo "Troubleshooting:"
echo " Wrapper log: tail /tmp/ea_install.log"
echo " Proton log: tail $STEAM_HOME/logs/steam_$APPID.log 2>/dev/null || \\"
echo " tail \$(ls -t $STEAM_HOME/steamapps/compatdata/$APPID/../../../steam-$APPID.log 2>/dev/null | head -1)"