Upgradinin to OES 11 sp1 ,Mount options of root

Hi
Got a Ques about
"Changing the Mount Options Before an Upgrade"
in "Preparing the Server You Are Upgrading"
I sazs
I should change to "mount by Device ID or PATH"
My partitions are
dev/sda = 200 MB boot ( = no problems to change to Device boot)
dev/sdb = 20 GB Linux LVM
made as a VG01
containing a swap volume on 1,5 GB + the rest as 18,5GB root volume
Here I cant Change anything ....in the SDB and volumes are the "device/path" options greyed out, Is this OK
It still warns me about "upgrading"
Please advice