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My Dual boot is working now. The solution to my problem can be found in the last comment below. Thanks again for the help, @oldfred !


I had a dual boot with Windows 10 and Ubuntu 20.4 working before.

When I make a fresh reinstall of Ubuntu 20.4 (this time I choose Home partition,) I lost the dual boot provide by Grabber. I thought the Ubuntu Installer would keep the Dual partition as before.

The worst is that Windows 10 is starting now without the chance to boot on Ubuntu. Please help. Thank you.

My system info, https://paste.ubuntu.com/p/vSKsp9dy85/

My setup was as you can see on the picture:

  1. ext4 ___Primary ___ / ___I choose to format this partition
  2. ext4 ___ Primary ___ /Home ___I choose to format this partition
  3. In the Device for boot loader installation option, I choose the Windows Boot Manager option. ___I did NOT choose to format the partition where Windows Boot Manager was/is located
  4. Fast startup disabled on Windows
  5. Boot Speed [Normal] or disabled on UEFI
  6. Secure Boot [Disabled] on UEFI
  7. Boot Mode [UEFI Boot] selected, instead of (BIOS legacy)
  8. I run chkdsk on windows. It is all good.
  9. I run defragmentation on windows. It is all good
  10. I've just found in my UEFI that I can run Ubuntu from my HDD. Now in order to run Ubuntu, I have to press F12 to access my UEFI and then go to HDD and press "enter." OBS.: When I click enter on my HDD, the first option is Windows; the second option is ubuntu, and the third option is Ubuntu (with capital later.) There are 2 Ubuntu options. It doesn't matter which Ubuntu option I click, the Ubuntu starts.
  11. Before I get the Ubuntu normal loading process, I get a black screen with a mesage on the top "System Boot Order Not Found."
  12. Also, I should say that my WIFI is not working. It always worded before.

My Dual boot is working now. The solution to my problem can be found in the last comment below. Thanks again for the help, @oldfred !

0 Answers0