Fix for "Booting from raid1 -- md: invalid raid superblock mag"

@@ -218,6 +218,19 @@ static void __init md_setup_drive(void)
                                err = sys_ioctl(fd, ADD_NEW_DISK, (long)&dinfo);
                        }
                } else {
+                       mdu_array_info_t ainfo;
+
+                       memset(&ainfo, 0, sizeof(ainfo));
+                       ainfo.major_version = 1;
+                       ainfo.minor_version = 0;
+
+                       err = sys_ioctl(fd, SET_ARRAY_INFO, (long)&ainfo);
+                       if(err) {
+                               printk(KERN_WARNING
+                               "md: Cannot set array info for md%d\n",
+                               minor);
+                       }
+
                        /* persistent */
                        for (i = 0; i <= MD_SB_DISKS; i++) {
                                dev = devices[i];

@@ -225,7 +238,7 @@ static void __init md_setup_drive(void)
                                        break;
                                dinfo.major = MAJOR(dev);
                                dinfo.minor = MINOR(dev);
-                               sys_ioctl(fd, ADD_NEW_DISK, (long)&dinfo);
+                               err = sys_ioctl(fd, ADD_NEW_DISK, (long)&dinfo);
                        }
                }
                if (!err)