Convert qcow to lvm
If you have a scenario where you have to convert qcow images to lvm here is how you can achieve this.
In my case I had to migrate from old hypervisor to new one and old one had qcow ones on new one disk were set as lvm.
So first I had to convert those images to raw
qemu-img convert dhcp1_system.qcow2 -O raw dhcp1_system
Then simply figure out its size and allocate that on your lvm partition
ls -la dhcp1_system
-rw-------. 1 root root 16106127360 Feb 5 13:27 dhcp1_system
So now we know how much space we need and we create lvm based on it
lvcreate -L 16106127360b -n dhcp1_system vg_kvm
Since we have space allocated all we need is to write data to there
dd if=dhcp1_system of=/dev/vg_kvm/dhcp1_system bs=4M
Now we have disk created and data moved all we need is to update xml of vm we just migrated. This can be achieved by virsh
virsh edit dhcp1
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/kvm/dhcp1_system.qcow2'/>
<target dev='vda' bus='virtio'/>
<boot order='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
On disk section of xml edit parts where it states file and type as needed
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none' io='native'/>
<source dev='/dev/vg_kvm/dhcp1_system'/>
<target dev='vda' bus='virtio'/>
<boot order='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>