Dual booting W10 and Mint goes straight to Windows.

Chrislw324 · 11-19-2018, 04:39 PM

My dual booting adventures have not been going well. The first time, I could not get my bootable usb to boot in UEFI mode so I booted into it in legacy causing me to have to change the BIOS between UEFI for W10, and legacy for Linux Mint.

I figured out how to boot into the thumb drive in UEFI mode, so I deleted the partition and tried again. I followed the directions on the video I was watching meticulously, but afterward the installation completed, my computer boots straight into windows. What is going on?

BW-userx · 11-19-2018, 05:11 PM

UEFI, from what I know about it, as I do not use t, you have to set your BIOS for UEFI listing . So I'd try first to turn on everything UEFI in your BIOS, if that does not work, wait for someone that knows more about UEFI bootlist setup.

if you can look in /boot in windows to see files, then look fro your linux disto to make sure it is in there,

syg00 · 11-19-2018, 05:20 PM

Hopefully just a matter of simply changing the defaut boot option. Boot into your Mint install media as "liveCD" mode, open a terminal, run these and post (all) the output.

Code:

lsblk -f -o +size
efibootmgr

Chrislw324 · 11-19-2018, 05:47 PM

mint@mint ~ $ lsblk -f -o +size
NAME FSTYPE LABEL UUID MOUNTPOINT SIZE
sdb 7.1G
└─sdb1 vfat LINUX MINT
6257-BEFA /cdrom 7.1G
loop0 squash /rofs 2G
sda 238.5G
├─sda4 ntfs Recovery AE94A11494A0E057 1G
├─sda2 16M
├─sda5 swap fc1620f0-4d62-485c-89f5-91f5d3c17138 [SWAP] 1.9G
├─sda3 ntfs Acer 4010A00E10A00CCA 157.4G
├─sda1 vfat ESP C099-C535 100M
└─sda6 ext4 900f7f67-4fca-4d1c-a717-cf593e08e6f8 78.1G
mint@mint ~ $ efibootmgr
BootCurrent: 0002
Timeout: 0 seconds
BootOrder: 0000,0002,2001,2002,2003
Boot0000* Windows Boot Manager
Boot0001* Unknown Device:
Boot0002* Linux
Boot0004* EFI Network
Boot0005* EFI Network
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot2003* EFI Network
mint@mint ~ $ ^C

syg00 · 11-19-2018, 06:51 PM

Code:

mint@mint ~ $ lsblk -f -o +size
NAME   FSTYPE LABEL    UUID                                 MOUNTPOINT   SIZE
sdb                                                                      7.1G
└─sdb1 vfat   LINUX MINT
                       6257-BEFA                            /cdrom       7.1G
loop0  squash                                               /rofs          2G
sda                                                                    238.5G
├─sda4 ntfs   Recovery AE94A11494A0E057                                    1G
├─sda2                                                                    16M
├─sda5 swap            fc1620f0-4d62-485c-89f5-91f5d3c17138 [SWAP]       1.9G
├─sda3 ntfs   Acer     4010A00E10A00CCA                                157.4G
├─sda1 vfat   ESP      C099-C535                                         100M
└─sda6 ext4            900f7f67-4fca-4d1c-a717-cf593e08e6f8             78.1G
mint@mint ~ $ efibootmgr
BootCurrent: 0002
Timeout: 0 seconds
BootOrder: 0000,0002,2001,2002,2003
Boot0000* Windows Boot Manager
Boot0001* Unknown Device: 
Boot0002* Linux
Boot0004* EFI Network
Boot0005* EFI Network
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot2003* EFI Network
mint@mint ~ $

Much easier to read - pls use [code] tags in future - click the "Advanced" button, then "#".
To make sure it's ok, get into the EFI boot menu, and select that "Linux" entry - if all ok, run this to change the default boot order.

Code:

efibootmgr -o 0002,0000,2001,2002,2003

Win updates may revert this, so be prepared to repeat in future.

Chrislw324 · 11-19-2018, 07:06 PM

"To make sure it's ok, get into the EFI boot menu, and select that "Linux" entry"

I'm not sure what you mean here, but I booted into my Linux flash drive, ran that command, and it still boots right into windows.

BW-userx · 11-19-2018, 07:13 PM

Quote:

Originally Posted by Chrislw324

"To make sure it's ok, get into the EFI boot menu, and select that "Linux" entry"

I'm not sure what you mean here, but I booted into my Linux flash drive, ran that command, and it still boots right into windows.

he means run that on the cli it is switching the boot order.

Code:

your boot order
BootOrder: 0000,0002,2001,2002,2003
Boot0000* Windows Boot Manager
Boot0001* Unknown Device: 
Boot0002* Linux
new boot order 

efibootmgr -o 0002,0000,2001,2002,2003

syg00 · 11-19-2018, 07:17 PM

You mentioned you used to change from EFI to legacy mode - that is done from the EFI menus; what used to be called the BIOS menus. There will be the same boot list in there as efibootmgr gave you. Some (most) systems also have a boot menu key on power-up; try F9 or F10.
As for the command try it as follows - if that still doen't work, you'll have to dig deeper in the EFI options; maybe a boot virus protection, or TPM, or safe-boot, or ...

Code:

sudo efibootmgr -o 0002,0000,2001,2002,2003

Chrislw324 · 11-19-2018, 07:41 PM

It's still going right into windows.

I did run the command with sudo originally. I don't remember what the output was, but I didn't get an error afterwards.

Secure boot is turned off, and I turned off TPM. Still nothing.

I don't know what the boot order should be in the bios. I see windows boot manager, and then my Kingston SSD.
I tried them both ways.

I've pretty much given up tonight.

jefro · 11-19-2018, 08:35 PM

I'd consider removing power/data to internal drive and then boot from a uefi aware Linux distro then install to this flash drive.