Waiting for Root Device after BIOS reset

Hey,

I had to reset my BIOS (v2.17.1246) because my mainboard didn't want to power on again. The build is an Asus Maximus Ranger VIII with a Skylake i5, a Geforce 980 and 16GB RAM.

I put the BIOS settings back to the way they were before, respectively:
- Secure Boot: Off
- CFG Lock: Off
- CSM: Off
- Disabled Fastboot
- Legacy USB: Disabled
- XHCI Handoff: Enabled
- SATA Mode: AHCI

When I booted up, Clover came up just fine and Windows would boot without problems. However booting El Capitan resultet in a 'Still waiting for Root Device' error. I double checked the SATA setting but it was on AHCI.
I also tried booting with PCIRootUID=0 and UseKernelCache=No flags to no avail.

There is also this:
SuperIODevice: [Fatal] found unsupported chip! ITE sequence ID=0xffff, Winbond sequence ID=0xffff
during boot which I'm sure has been or not been there before.



Any ideas?

Did you disable the Serial port (SuperIO) in your BIOS settings ?

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Hey,

thanks for the reply. This is really strange. I don't have any settings for serial ports in my BIOS, although this post https://www.tonymacx86.com/threads/...iii-ranger-6700k-gtx-970-nvme-950-pro.193335/ suggests that they should be there. I also searched through the manual and there is no mention for serial port settings (and they describe every BIOS setting there).

I'm not sure whether that is an issue or not, because I am pretty sure I did not set anything like this when I had a working setup. I was using this guide https://www.tonymacx86.com/threads/...ger-i5-6600-gtx-970-clover-el-capitan.185093/ with the respective BIOS settings.

Cheers

Hi,

I "fixed" the problem by creating a new USB drive with the latest version of Clover. I used only the nv_drv=1 boot flag. I then just copied the new Clover over my old partition and put my old kexts back in. Everything now works again,... I don't really see how this fixed the "problem" but well,...

Cheers