How to Allow virt-v2v to import more than 3 disk from esx server

Respected Sir

I have one vm on esxi which is having 4 disk attached to it and all disk are member of sigle lvm group and assign to "/" root partition

Now i am trying to migrate the vm from esxi to rhevm and getting this error

usr/share/perl5/vendor_perl/Sys/VirtConvert/GuestfsHandle.pm line 96

I have read the thread that virt-v2v with four disk is not supported but is there any workaroud or any trick from which i can perform the migration of my vm

because if i will try to migrate with 2 disk attached the boot disk and any other disk

its giving error root device not found

so what can i do in this situation

please reply ASAP