fix storage

backend/internal/storage/zfs_pool_monitor.go

@@ -2,6 +2,7 @@ package storage
 
 import (
 	"context"
+	"fmt"
 	"os/exec"
 	"regexp"
 	"strconv"
@@ -98,11 +99,17 @@ type PoolInfo struct {
 func (m *ZFSPoolMonitor) getSystemPools(ctx context.Context) (map[string]PoolInfo, error) {
 	pools := make(map[string]PoolInfo)
 
-	// Get pool list
-	cmd := exec.CommandContext(ctx, "zpool", "list", "-H", "-o", "name,size,alloc,free,health")
-	output, err := cmd.Output()
+	// Get pool list (with sudo for permissions)
+	cmd := exec.CommandContext(ctx, "sudo", "zpool", "list", "-H", "-o", "name,size,alloc,free,health")
+	output, err := cmd.CombinedOutput()
 	if err != nil {
-		return nil, err
+		// If no pools exist, zpool list returns exit code 1 but that's OK
+		// Check if output is empty (no pools) vs actual error
+		outputStr := strings.TrimSpace(string(output))
+		if outputStr == "" || strings.Contains(outputStr, "no pools available") {
+			return pools, nil // No pools, return empty map (not an error)
+		}
+		return nil, fmt.Errorf("zpool list failed: %w, output: %s", err, outputStr)
 	}
 
 	lines := strings.Split(strings.TrimSpace(string(output)), "\n")