LinuxQuestions.org - [SOLVED] CentOS7 won't boot after motherboard swap. UEFI? dracut-initqueue timeouts...

I'm not sure if this should be hardware or software. Trying here first.

I have an install of CentOS 7.2. It was previously on a Supermicro X7SPA-HF motherboard and the intent was to move it to a Gigabyte GA-C1037UN motherboard.

The BIOS has a number of options for UEFI vs. Legacy. I think I've really only used legacy to this point, and am unfamiliar with UEFI.

When I try to boot a normal kernel, I get the normal load bar but I am informed that it is doing something with dracut, which I really don't think it did before. (See image 1)

If I hit escape to watch the boot process, it gets to a point and hangs for a while (See image 2).

Then after a while (120-130 seconds I presume) it starts spamming dracut-initqueue errors (See image 3).

Interestingly, if I pick rescue mode, it boots mostly okay but I lack most of the kernel modules I need.

Do I need to rebuilt some sort of initramfs? I've never had to do this type of thing before. I would appreciate any input.

Edit: I meant to mention that the motherboard BIOS does have some options for UEFI vs. Legacy. I've tried Legacy Only, UEFI, and a combination of each, but nothing seems to get over this main issue.

Edit 2: meant to mention that I did not do a new OS install. I just moved the hard drive from the old system to the new, which normally works.

Thank you!