Comment 0 for bug 1949029

I have a dual boot system (Windows 10 and Ubuntu 21)
Lenovo Z50-70

I upgraded my storage to Samsung 870 QVO 1TB.

When I reboot the machine via Windows, the machine reboots normally and SSD is detected. However, when I reboot the machine via Ubuntu, the machine will reboot but it won't detect my SSD.

I have upgraded to the latest Ubuntu distro and have the latest kernels, etc... I have validated that my installation and boot partitions are correct.

Other people who faced an issue similar to mine were using SSDs with NVME. However, my SSD is using NAND, not NVME so neither applying the fix I found about setting nvme latency nor upgrading distro have solved the problem.

On Windows, I had initially the same problem but on Windows after selecting AHCI Standard SATA mode, the issue was solved. On Ubuntu, I'm already in AHCI mode but the problem persists. I did few times grub boot repair to validate if it was something messed up with my boot configurations but turned out that it's not.

I'm able to use Ubuntu 21 at the moment. However, I'm unable to perform a reboot. Every time I have to shut down the machine and then manually push the laptop's button to launch it again because if I accidentally hit reboot via Ubuntu, the machine will not find SSD and on next boot, the BIOS falls back into Windows Boot Manager and I have to run grub boot repair all over again via live USB.

I hope that you will find a solution for this problem soon.