diff --git a/chromium-setup/emmc-provisioning/scripts/deploy-to-proxmox.sh b/chromium-setup/emmc-provisioning/scripts/deploy-to-proxmox.sh
index 1c50238..fac5b6c 100755
--- a/chromium-setup/emmc-provisioning/scripts/deploy-to-proxmox.sh
+++ b/chromium-setup/emmc-provisioning/scripts/deploy-to-proxmox.sh
@@ -10,7 +10,7 @@
 # Example: ./deploy-to-proxmox.sh root@10.20.30.152
 #
 # Optional env:
-#   DEPLOY_ROOTFS_STORAGE=local-lvm   — LXC rootfs storage (default: local-lvm)
+#   DEPLOY_ROOTFS_STORAGE=name        — LXC rootfs storage (default: auto-detect: local-lvm, local, local-zfs, or first active)
 #   CM4_BACKUPS_HOST_PATH=/path       — host dir for backups; bind-mounted into LXC
 #   DEPLOY_LXC_ROOT_PASSWORD=secret   — set root password in LXC and enable SSH
 #   DEPLOY_LXC_SSH_KEY=/path/to/pub   — copy this key to LXC root (default: ~/.ssh/id_ed25519.pub or id_rsa.pub)
@@ -61,11 +61,29 @@ log "[3/5] Running remote install (host + LXC) ..."
 ssh "$PROXMOX" "ROOTFS_STORAGE='$ROOTFS_STORAGE' CM4_BACKUPS_HOST_PATH='${CM4_BACKUPS_HOST_PATH:-}' DEPLOY_SSH_KEY_B64='${DEPLOY_SSH_KEY_B64:-}' DEPLOY_LXC_PWD_B64='${DEPLOY_LXC_PWD_B64:-}'" bash -s << 'REMOTE'
 set -e
 DEPLOY=/tmp/emmc-provisioning-deploy
-ROOTFS_STORAGE="${ROOTFS_STORAGE:-local-lvm}"
 BACKUPS_HOST_PATH="${CM4_BACKUPS_HOST_PATH:-}"
 LXC_HOSTNAME="cm4-provisioning"
 log() { echo "[$(date -Iseconds)] $*"; }
 
+# --- Auto-select LXC rootfs storage if not set or not available ---
+_storage_exists() { pvesm status 2>/dev/null | awk -v s="$1" 'NR>1 && $1==s && $3=="active" {exit(0)} END{exit(1)}'; }
+if [[ -n "${ROOTFS_STORAGE:-}" ]] && _storage_exists "$ROOTFS_STORAGE"; then
+  : # use provided and existing storage
+else
+  ROOTFS_STORAGE=""
+  for cand in local-lvm local local-zfs; do
+    if _storage_exists "$cand"; then
+      ROOTFS_STORAGE="$cand"
+      break
+    fi
+  done
+  if [[ -z "$ROOTFS_STORAGE" ]]; then
+    ROOTFS_STORAGE=$(pvesm status 2>/dev/null | awk 'NR>1 && $3=="active" {print $1; exit}')
+  fi
+  [[ -z "$ROOTFS_STORAGE" ]] && { log "Error: no Proxmox storage found. Run: pvesm status"; exit 1; }
+  log "Using storage: $ROOTFS_STORAGE"
+fi
+
 # --- Find existing LXC by hostname or use next available ID ---
 CTID=""
 for id in $(pct list 2>/dev/null | awk 'NR>1 {print $1}'); do