Default htc amaze stuck on boot after upgrade to 10.1 issue

I am trying to upgrade my htc eamaze (ruby) to Cyanogenmod 10, but after installation in recovery mod, it stuck on boot white screen. I read on somethread that flash boot into android phone but that shows the boot animation and then gets restarted. What can be the issue? Please help. I am following the steps as:
  • Boot into Clockwordmod Recovery
  • Factory Reset/wipe data
  • Wipe cache partition
  • wipe Dalvik cache
  • install from sd card CM 10
  • install from sdcard gapps
  • Reboot system now

For flashing boot.img
fastboot flash boot boot.img

I have downloaded cm-10.1-20130518-UNOFFICIAL-ruby and gapps-jb-20130812-signed

Please help !!!!.