Is it possible to partition an LVM in two volumes.
So that one can be an ext4 filesystem and another can be swap.

yes, you can resize, add more space ,and add more partitions in lvm. Have a read here...

http://www.linuxconfig.org/Linux_lvm...Volume_Manager

Yes its possible, You create Volume Group that can multiple Physical volume(Disks) , and from a single Volume Group we can create multiple logical volume, one, two or many . Logical volume can be formatted using a file system and can be used accordingly.

Thanks

If you have a volume group having name vg_new and has 2GB of space then you may create the two partitions as:

create a logical volume "lv01" of size 400 MB

# lvcreate -L 400 -n lv01 vg_new


create a logical volume "lv02" of size 1 GB

# lvcreate -L 1000 -n lv02 vg_new

Ok if I want to break the LVM in an Volume Group to two file systems not creating two LVMs.
Then how should I proceed.

Sorry but not getting your question. Can you elaborate more?

Regards,

Seems you're confusing things... you should read this and this.

but here goes a round-up of a _very basic_ LVM installation:

* you partition your disk as usual with your favorite partition editor - fdisk, cfdisk, parted, whatever
* you pick the partition(s) you want to use for LVM, and change its type to 8e. That/those partition(s) will be your Physical Volume(s).
* then you create your Volume Group(s), using your previously created Physical Volumes.
So, as an example, you can create one VG for every PV, or create just one VG grouping all your PVs.
* then, you create Logical Volumes, inside your Volume Group.
the LVs will be your new "partitions", the chunks of disk you'll be formatting, mounting, and using for storage and such.


Anything left out? Feel free to correct.