diff --git a/pmon/fs/dev_part.c b/pmon/fs/dev_part.c
index fc41744d..49cd5480 100644
--- a/pmon/fs/dev_part.c
+++ b/pmon/fs/dev_part.c
@@ -782,7 +782,7 @@ static int _DevPartOpen(DeviceDisk* dev, const char* dev_name)
         //dev->part = NULL;
         char *p_name = dev_name+2;
         int ide_cd_index = *p_name - '0';
-#if defined(LOONGSON_3A2H) || defined(LS7A) || defined(LS2K)
+#if defined(LOONGSON_3A2H) || defined(LS7A) || defined(LOONGSON_2K)
         if(1){
 #else
         if(is_ide_cd_ready(ide_cd_index)){
diff --git a/pmon/fs/iso9660fs.c b/pmon/fs/iso9660fs.c
index bc60ed58..a6267159 100644
--- a/pmon/fs/iso9660fs.c
+++ b/pmon/fs/iso9660fs.c
@@ -169,6 +169,7 @@ iso9660_open(int fd, const char *path, int flags, int mode)
 	struct iso_directory_record *dp;
 	int rc;
 	int showdir,lookupdir;
+	char retry_times = 0;
 	showdir=0;
 	if(path[strlen(path)-1]=='/')lookupdir=1;
 	/*  Try to get to the physical device */
@@ -194,6 +195,7 @@ iso9660_open(int fd, const char *path, int flags, int mode)
 	opath = strchr(opath, '/') + 1;
 
 	if(opath[0]==0){opath="/";}
+again:
 	/* Try to open the physical device */
 	rc = devio_open(fd, dpath, flags, mode);
 	if (rc < 0)
@@ -212,7 +214,15 @@ iso9660_open(int fd, const char *path, int flags, int mode)
 		}
 		errno = ENOENT;		/* In case of error */
 		if (bcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0)
-			goto out;
+			if (retry_times < 50) {
+				retry_times++;
+				//printf("retry_times %d.\n",retry_times);
+				free(buf);
+				(void)devio_close(fd);
+				delay(10000);
+				goto again;
+			} else
+				goto out;
 		if (isonum_711(vd->type) == ISO_VD_END)
 			goto out;
 		if (isonum_711(vd->type) == ISO_VD_PRIMARY)
diff --git a/sys/dev/pci/ahcisata.c b/sys/dev/pci/ahcisata.c
index e7b7d364..0bc78806 100755
--- a/sys/dev/pci/ahcisata.c
+++ b/sys/dev/pci/ahcisata.c
@@ -743,16 +743,16 @@ static int get_ahci_device_data(u8 port, u8 * fis, int fis_len, u8 * buf,
     };
 	writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
 	if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 2000000, 0x1)) {
-		printf("%s <line%d>: timeout exit! %d bytes transferred.\n", __func__, __LINE__,
-		       pp->cmd_slot->status);
+//		printf("%s <line%d>: timeout exit! %d bytes transferred.\n", __func__, __LINE__,
+//		       pp->cmd_slot->status);
 
-        printf("PxIS: 0x%08x, PxSERR: 0x%08x\n", readl(port_mmio + PORT_IRQ_STAT), readl(port_mmio + PORT_SCR_ERR));
-        printf("PxTFD: 0x%08x, PxSSTS: 0x%08x\n", readl(port_mmio + PORT_TFDATA), readl(port_mmio + PORT_SCR_STAT));
+//        printf("PxIS: 0x%08x, PxSERR: 0x%08x\n", readl(port_mmio + PORT_IRQ_STAT), readl(port_mmio + PORT_SCR_ERR));
+//        printf("PxTFD: 0x%08x, PxSSTS: 0x%08x\n", readl(port_mmio + PORT_TFDATA), readl(port_mmio + PORT_SCR_STAT));
 
 	    if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE, 2000000, 0x1)) {
-            printf("Waiting another 2s is useless.\n");
+//            printf("Waiting another 2s is useless.\n");
         }else{
-            printf("Waiting another 2s is usefull.\n");
+//            printf("Waiting another 2s is usefull.\n");
         }
 
 		return -1;