i recently installed ubuntu 16.04,(dual boot with windows 10 using usb drive) i did the disk partition and all and now it is present in my hard disk. but when i restarted after installation, i was not asked to choose ubuntu or windows 10, it directly took me to windows, their was no GRUB bootloader. and i tried this in windows cmd(admin): "bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi" . it said successful, but when i restarted again, i was back into windows. now i dont know what to do, and that GRUB loader... should that be installed or something???

marked as duplicate by Charles Green, user364819, Eric Carvalho, karel, Rod Smith Jul 1 '17 at 14:53

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  • It could also be a duplicate of askubuntu.com/questions/235567/…. It's almost certainly a duplicate of one of the suggested questions; there are several causes of this symptom, but it's almost always one of those handful of causes. – Rod Smith Jul 1 '17 at 14:55

When you where installing ubuntu, in the section where it asks to write changes to disk, did it ask you to install the bootloader (GRUB) on the disk ?

By chance did you say no ?

If im not mistaken you can use the same USB you used to install ubuntu to try and repair the system. Assuming its a live image it should have a "repair installed system" option and that may help install/reinstall/repair grub in order to successfully boot into the Ubuntu installation.

  • no, it did not ask me to install the bootloader on the disk. – miles blue Jul 1 '17 at 10:41

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