![]() To add Persistent Live install to the internal GRUB boot menu, (by hand)Īdd the following menuentry to /etc/grub. See: How can I add Windows 11 to grub menu? The first partition you will make is the SWAP partition. Note: Grub 2.06 turns off os-prober in /etc/default/grub. Just select the free space partition and click on the plus symbol below to add a new partition. Note: On many laptops with the Fn key, you need to press Fn + F12 key combo to select the boot device option. It will open the /etc/default/grub file with gedit. On Dell, Acer, Lenovo or Toshiba laptops, it's the F12 key in most cases. To do this, type the following on the terminal: gksudo gedit /etc/default/grub. You need to tap the F12, F10 or F8 key many times to select the boot device. Once GRUB has been installed to the internal drive you can plug in your external drive and run sudo update-grub Ubuntu must be installed in the same BIOS or UEFI mode as Windows. Now reboot the PC and boot it from the USB drive. this fixes boot record of partition mapped to 'driveletter:' and the MBR of the disk where the partition is placed. ![]() To add the Full install USB drive to internal GRUB The command in Windows 8/8.1/10 for fixing MBR is 'bootsect.exe'. the drive where your Linux system resides. Under the Drive tab, select the Linux partition i.e. Select GRUB2 in the Type field and type in the name of your Linux distro. Reboot your computer and test to see if Windows 10 is a new option to select. You can also add the external drive to the UEFI boot menu. Here’s how to replace GRUB with Windows Boot Manager using EasyBCD: Fire up the EasyBCD application and click on the Add New Entry option. If the results identify a Windows 10 install, type sudo update-grub which will update the GRUB entries and add it. I have tested this with an external install made like this: How to Create a Full Install of Ubuntu 22.04 to USB Device Step by Step You will need to use F9, F12, etc to select the USB drive. ![]() UEFI should boot GRUB located on an external drive automatically. Install GRUB on Windows to replace Windows Boot Manager and Boot External Ubuntu ![]()
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