I have Toshiba qsmio-500 running Windows 10 in hdd 2. One week ago I installed Ubuntu 19.04 in its first hdd. But after installation only black letter and green ok letter appear many times. After I installed Ubuntu in same hdd but in my another Dell laptop and I transferred it in toshiba laptop, where it run but there was not nvidia. I downloaded it and installed. But when the installation completed again the screen was full of black letter and green ok. I tried many times withhout success. I want Ubuntu in one hdd. Please help me.