Dual boot Ubuntu & Windows 10

[hung-doan]

Type: Guide Descriptions: [1] Install Windows 10 First [2] Then Install Ubuntu [3] Boot Windows 10 only do not show grub menu [4] Repair Boot (Link)[https://help.ubuntu.com/community/Boot-Repair] [5] Receive Error Boot Device Not Found (3F0) Pavilion 23 All In One (Link)[http://ubuntuforums.org/showthread.php?t=2238714] NOTE : Use UEFF boot. Reason: N/A Solutions:

HP and Sony only boot Windows. So we have many work arounds, some work better than others.

Since you do not have any Windows you can just create the Windows efi boot file with the Windows name. Then the UEFI will think it is booting Windows but really boots grub.

You will have to recreate in the efi partition the Windows folder, a boot folder under Windows and copy grubx64.efi into that folder and rename it to bootmgfw.efi.

mount /dev/sda1 /mnt cd /mnt/EFI

use ls to see if mounted correctly ls -l mkdir Microsoft mkdir Microsoft/Boot cp /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/Microsoft/Boot/bootmgfw.efi

Most systems also have a /Boot folder and can boot grub from that using a hard drive entry. mkdir Boot

cp /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/Boot/bootx64.efi

Your ls -l should then have this in the efi partition:

/EFI/Boot /EFI/Microsoft/Boot /EFI/ubuntu

You have a large 2TB drive. System will run better with a smaller / (root) partition and then larger /home or /mnt/data partition(s). With a large root, grub, kernels & system files may be anywhere in root or anywhere on drive. So drive has to jump all over 2TB to find its files. I expect it has ways to optimize that, but with a smaller / then it does not have that much space to find files from.

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[QGB]

惠普。 将原来的系统迁移到新的SSD。用傲梅分区助手 。点击 迁移系统到新硬盘。这个在PE下不能用。需要安装后重启。

直接复制硬盘。调整分区大小匹配新的硬盘。100多G的系统盘，复制了半个小时以上。

用新硬盘启动。出现问题： hp Issue: Boot Device Not Found (3F0).

使用U盘重新进入PE。点击硬盘修复引导mbr。选择第1项。dos .....62扇区。。。

重启问题解决。