After hearing the news that CentOS 7 had been published, I decided to install it on my computer. I downloaded the ISO image from the CentOS official website (the one named CentOS-7.0-1406-x86_64-DVD.iso) and then burned it onto a USB drive by using a tool named UltraISO.

After that, I rebooted my computer and pressed F12 to choose my boot device. (My GIGABYTE motherboard uses F12 to choose a boot device.) I chose this: UEFI: hp v245o 1100, where hp v245o 1100 is the USB name, and I suppose this is a so-called EFI boot from USB. After that, three menu selections are presented:

1. Install CentOS 7,
2. Test this media & install CentOS 7,
3. and Troubleshooting -->.

At first I decided to choose option 1 to let it display all its running messages, so I typed e and here is what I get:

set params 'Install CentOS 7'
linuxefi /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 quiet
initrdefi /images/pxeboot/initrd.img

So I removed the quiet param and pressed CTRLx to start, then I got this:

I have no idea what the fb is, and the installation process just stopped there.

So I decided to try the 3rd option (the Troubleshooting --> one) with no luck; I still cannot install this CentOS 7 and I got something like:

> [7.471771] scsi 0:0:0:0: alua: not attached
> [7.474665] sd 0:0:0:0: [sda] no Caching mode page found
> [7.474682] sd 0:0:0:0: [sda] Assuming drive cache: write through
> dracut-initqueue[685]: Warning: Could not boot
> dracut-initqueue[685]: Warning: /dev/root does not exist

How I can solve this problem?