diff --git a/boottools/btog.py b/boottools/btog.py
index ae53c1d..524cbfe 100644
--- a/boottools/btog.py
+++ b/boottools/btog.py
@@ -18,7 +18,7 @@ def GetVar (osarch):
     if 'i386' == osarch:
         btvirtualdisksize = '2000'    # tamaño maximo limitado por schroot 2GB para 32 bits
     else:
-        btvirtualdisksize = '3G'
+        btvirtualdisksize = '5G'
     return bttargetdir, btrootfsimg, btrootfsmnt, btvirtualdisksize
 
 def GetOsInfo (type_client='host'):