Booting stops at Loading initial ramdisk

It probably moves on, actually, but you don't see anything because the kernel's messages are not enabled. This happens when the boot loader passes the option quiet to the kernel.

Please try booting your system again, but without that option. If you're using grub as the boot loader, this is done as follows:

• when you reach the grub menu, select the option that you would normally boot, and press the e button on your keyboard.
• you will now see a full-screen editor. Find the line that starts with linux. This line contains the kernel command line. Remove the option quiet from that line, and nothing else. (if you accidentally do remove something else, just hit esc and start over).
• Once you've made the above change, press ctrl+x to execute the script without saving it.

You should now get much more information about why things aren't booting.

I solved it by changing my version from x86_64 to i686

In the installation menu, there are two choices one for x86_64 and one for i686. My problem was with x86_64 but when I reinstalled it choosing i686, it worked fine.

The CMOS problem was solved by changing the CMOS battery.