UbuntuKylin13.10: any way to convert the LVM partition back to a common one?

[hhtmp88]

Dear all,

During installation of UbuntuKylin13.10 ("ubuntukylin-13.10-desktop-amd64.iso"), I set to partition the 128GB SSD into:
sda1: / --------------------- 30GB, ext4
sda2: /home ---------------- 85GB, ext4
sda3: Linux-swap -------------------- 4.24GB


After installation, the partitions became:
/dev/sda1: /boot ------------------ 243MB, ext2 (Flag：boot)
/dev/sda2: extended ------------- 119GB
/dev/sda5: ubuntukylin-vg ----- 119GB (Flag：lvm)

which completely differs from what I want!

What's wrong?
Are there any way to convert the LVM partition back into a common one?

Thanks for any kind of help!

==============================
* someone tell me:
LVM: Logical Volume Manager（逻辑卷管理） 能动态扩增和缩小
vg: volume group --卷组

[hhtmp88]

no one can help?

[robnils]

What about deleting the partition and starting over? If you just installed it then you have nothing to lose, right? I have a LVM partition from a previous Fedora install that won't go away.. GParted makes odd threats when I attempt to delete it and since this partition is one of several on a 750 GB laptop, I'm a little nervous just chancing it. Does anyone know if it's okay to just delete the partition? I have something like

sda3/
-> one partition
-> lvm
-> ubuntu
sda4/windows
etc

I have a feeling deleting the lvm requires the deletion of the entire group,sda3, is that right? I can take a screen shot if helps but this isn't my thread...