I used the merge-gnexus-blobs script to flash the prebuilt image. The script worked smoothly except the make_ext4fs gave me a segmentation fault. So instead I just downloaded a prebuilt binary of make_ext4fs from here: https://code.google.com/p/archlive/downloads/detail?name=make_ext4fs.7z
Then the script ran to the end and the phone rebooted. But it freezed at the boot splash of "google".
My host is running ubuntu 12.04 64bit.
I couldn't think of anyway to debug this problem and google doesn't help much. So any suggestion is appreciated. Thanks!