+[ENOSPC]
+The new directory cannot be created because there
+there is no space left on the file
+system that will contain the directory.
+.TP 15
+[ENOSPC]
+There are no free inodes on the file system on which the
+directory is being created.
+.TP 15
+[EDQUOT]
+The directory in which the entry for the new directory
+is being placed cannot be extended because the
+user's quota of disk blocks on the file system
+containing the directory has been exhausted.
+.TP 15
+[EDQUOT]
+The new directory cannot be created because the user's
+quota of disk blocks on the file system that will
+contain the directory has been exhausted.
+.TP 15
+[EDQUOT]
+The user's quota of inodes on the file system on
+which the directory is being created has been exhausted.
+.TP 15
+[EIO]
+An I/O error occurred while making the directory entry or allocating the inode.