I switched the SATA Control mode from IDE to AHCI after installing my new Samsung Evo 850 SSD on my Gigabyte Z68AP-D3 board.
This resulted in an unrecoverable halt of the system prior to grub execution and the following error message:
Loading Operating Systems Read Error
My Setup
SSD: Samsung Evo 850 SSD, firmware: EMT02B6Q (latest)
Board: Gigabyte Z68AP-D3, BIOS: F8 (latest)
Possible workaround for the read error
I did some research and found other people to experience the same problem. They came up with a small workaround.
- Remove any medium from your CD/DVD drive
- During boot open the Boot Menu where you are able to select a different start option such as boot from CD/DVD, USB etc.
- Choose booting from CD/DVD
- Your system might be able to boot now
Unfortunately this did not work in my case.
First possible solution
The same person later came up with a solution that worked for him/her.
- Enter BIOS
- Go to Integrated Peripherals
- Change Onboard Serial Port 1 from 3F8/IRQ4 to auto
- Reboot
- Your system might be able to boot now
This did not work for me either.
Second possible solution
I did some additional digging and found another person with a problem that might be the same as mine or at least similar. However the solution they figured out was the one that solved the problem in my case.
- Enter BIOS
- Go to Advanced BIOS Features
- Change Quick Boot from enabled to disabled
- Reboot
- Your system might be able to boot now
I have yet to figure out what’s the exact source of the problem and if there’s a better solution which does not involve disabling quick boot. On the other hand, I couldn’t notice any major delay due to this change. My guess would be that the SSD takes too long to initialize during startup. A firmware update via Samsung Magician could not help. If you can provide some insight feel free to leave a comment.