diff --git a/Boot-HermitCore-from-a-raw-image.md b/Boot-HermitCore-from-a-raw-image.md
index ba15ea5..9ef34b7 100644
--- a/Boot-HermitCore-from-a-raw-image.md
+++ b/Boot-HermitCore-from-a-raw-image.md
@@ -30,4 +30,6 @@ Device        Boot Start    End Sectors Size Id Type
 
 The partition table has been altered.
 Syncing disks
-```
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+```
+
+Afterwards, we have to setup two loop devices. One will be used for writing GRUB and its additional codes to MBR, and the second will be used for mounting filesystem of your operating system.
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