android-x86 pxe boot

[ayx]

Hello all,
this is my first post , i am badly in need for help

I want to network boot android-x86 using iPXE. So far i have done the following

1. i have recompiled the android kernel adding nfs , pnp, ethernet , sunrpc etc related supports.
2. Built the final image successfully
3. tested the ISO in virtual box by live cd mode . it works okay

but i am stuck at pxe booting it.
At my server side laptop i have hosted the build output folder of the android-x86 over NFS . Here all the kernel,initrd, ramdisk, system.sfs images & other folders like root ,system etc are residing.

At my client side laptop during the pxe boot , kernel & initrd gets downloaded and the OS seems starts booting as many log prints but the booting gets stuck at "detecting android-x86 ....." . i know that android-x86 has 2 stage booting mechanism and it seems it is stuck at the 2nd stage , maybe it is unable find the ramdisk.img . here is my script ..
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#!ipxe
iPXE> set server_ip 192.168.0.105
iPXE> set nfs_path /home/ayx/android-x86/out/target/product/x86_64
iPXE> kernel nfs://${server_ip}${nfs_path}/kernel || read void
iPXE> initrd nfs://${server_ip}${nfs_path}/initrd.img || read void

iPXE> imgargs kernel root=/dev/nfs rw ip=dhcp androidboot.hardware=android_x86_64 netboot=nfs nfsroot=${server_ip}:${nfs_path},nolock,wsize=1024,rsize=1024 initrd=initrd.img ROOT=${server_ip}:${nfs_path}

boot || read void
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How can i load the ramdisk.img over nfs using iPXE ? or how can i properly boot android-x86 using iPXE ?
i will be very grateful to your help