How to convert multiple raw images to qcow2?

[sandip divekar]

I have created 1 VM in qemu using 2 raw images, which has 2 partitions as given below.

/dev/sda1       910G  263G  601G  31% /
/dev/sdb       5G  1G  4G  20% /mnt

Then I am stopping the VM and converting both raw images to qcow2 format. Using these qcow2 images I am trying to launch a new vm. But vm is not loading properly, its going in rescue mode. Is it possible to convert multiple raw to qcow2 images?