Can't boot into Ubuntu in Windows 10 / Ubuntu dual boot

up vote
5
down vote

favorite

I installed Ubuntu on a Dell XPS 13 laptop that had Windows 10 preinstalled on it. I installed it from a USB flash drive on a partition.
When I boot my computer I can only boot into Windows 10 and Ubuntu is nowhere to be seen.

If I boot into my USB then I can see that Ubuntu is installed, but I can't get to it from the BIOS boot menu.

edited Dec 4 at 4:27

karel

55.7k11124141

asked Dec 10 '15 at 18:13

Haim

138114

This might help you out with your problem.
– Alex Lowe
Dec 10 '15 at 18:21

it doesn't :( i'm not seeing UBUNTU in the boot menu
– Haim
Dec 10 '15 at 18:34

add a comment |

up vote
5
down vote

favorite

If I boot into my USB then I can see that Ubuntu is installed, but I can't get to it from the BIOS boot menu.

edited Dec 4 at 4:27

karel

55.7k11124141

asked Dec 10 '15 at 18:13

Haim

138114

This might help you out with your problem.
– Alex Lowe
Dec 10 '15 at 18:21

it doesn't :( i'm not seeing UBUNTU in the boot menu
– Haim
Dec 10 '15 at 18:34

add a comment |

up vote
5
down vote

favorite

If I boot into my USB then I can see that Ubuntu is installed, but I can't get to it from the BIOS boot menu.

edited Dec 4 at 4:27

karel

55.7k11124141

asked Dec 10 '15 at 18:13

Haim

138114

If I boot into my USB then I can see that Ubuntu is installed, but I can't get to it from the BIOS boot menu.

boot dual-boot grub2 windows-10

edited Dec 4 at 4:27

karel

55.7k11124141

asked Dec 10 '15 at 18:13

Haim

138114

edited Dec 4 at 4:27

karel

55.7k11124141

asked Dec 10 '15 at 18:13

Haim

138114

edited Dec 4 at 4:27

karel

55.7k11124141

edited Dec 4 at 4:27

karel

55.7k11124141

edited Dec 4 at 4:27

karel

55.7k11124141

asked Dec 10 '15 at 18:13

Haim

138114

asked Dec 10 '15 at 18:13

Haim

138114

asked Dec 10 '15 at 18:13

Haim

138114

This might help you out with your problem.
– Alex Lowe
Dec 10 '15 at 18:21

it doesn't :( i'm not seeing UBUNTU in the boot menu
– Haim
Dec 10 '15 at 18:34

add a comment |

This might help you out with your problem.
– Alex Lowe
Dec 10 '15 at 18:21

it doesn't :( i'm not seeing UBUNTU in the boot menu
– Haim
Dec 10 '15 at 18:34

This might help you out with your problem.
– Alex Lowe
Dec 10 '15 at 18:21

it doesn't :( i'm not seeing UBUNTU in the boot menu
– Haim
Dec 10 '15 at 18:34

add a comment |

4 Answers
4

active

oldest

votes

up vote
3
down vote

accepted

Disable the hibernation mode and Fast Boot in Windows.

Open command prompt as administrator and execute :

powercfg /h off

Open the legacy version of the Windows Control Panel (not the modern version).

Select Energy Settings, enable show hidden settings and uncheck Fast Boot.

After having done this - shutdown the computer completely - do NOT reboot.

Boot into the BIOS and select Ubuntu as the default operating system to boot.

Update :

In case there is no Ubuntu entry to be found in the BIOS / UEFI settings,

re-install the GRUB boot loader to your Ubuntu installation in EFI mode.

Boot from the Ubuntu installation media - open a terminal and execute:

sudo mount /dev/sdXXX /mnt

sudo mount /dev/sdXX /mnt/boot/efi

for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

sudo chroot /mnt

grub-install /dev/sdX

update-grub

Note:

sdX = disk | sdXX = efi partition | sdXXX = system partition

To identify the partition numbers use GParted - it is included in the Ubuntu installation media.

Boot into BIOS and select Ubuntu in UEFI settings to be the default operating system to boot.

edited Apr 12 '17 at 9:46

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

Thanks! I can't see Energy Settings in the control panel?
– Haim
Dec 10 '15 at 18:33

@Haim : It is there ... something with energy ... search through the old version of control panel ... maybe fast boot is already disabled after you executed the command. :)
– cl-netbox
Dec 10 '15 at 18:35

1

Ok, I restarted and still the boot menu doesn't show UBUNTU
– Haim
Dec 10 '15 at 18:39

@Haim : Did you switch the default operating system to Ubuntu in BIOS / UEFI settings ? :)
– cl-netbox
Dec 10 '15 at 18:41

where would I do that? BTW thanks for trying to help me out
– Haim
Dec 10 '15 at 20:21

|
show 2 more comments

up vote
1
down vote

I had the exact same problem. What fixed it for me was this:
I have 2 different hard drives installed. It took me forever to figure this out but was solved it was changing the boot priority from the first to the second drive. Probably the boot manager for ubuntu was installed on the other drive so it couldn't find it and booted straight into windows.

answered Nov 11 at 7:53

Patrick Lemke

112

add a comment |

up vote
0
down vote

Shutdown. Then press F12 on boot and use arrows to choose ubuntu (note lowercase).

Also, you should try shutting down, press F2 to open BIOS/UEFI settings and disable Secure Boot and make ubuntu top priority. Then GRUB can boot Windows.

edited Dec 14 '15 at 15:20

hg8

9,539125388

answered Dec 10 '15 at 18:26

juniorRubyist

15811

3

The problem us that UBUNTU doesn't show in the list of boot options
– Haim
Dec 10 '15 at 18:33

1

I had the same problem, because UEFI was pulling up the Windows 10 bootloader not GRUB.
– Rick Chatham
Mar 24 '16 at 3:29

add a comment |

up vote
0
down vote

Immediately after the BIOS/UEFI splash screen during boot, with BIOS, quickly press and hold the Shift key, which will bring up a GNU GRUB menu screen. With UEFI press (perhaps several times) the Esc key to get to the GNU GRUB menu screen. Select Ubuntu from the GRUB menu and press Enter.

From Ubuntu open the terminal and type:

sudo update-grub && sudo reboot

If this doesn't work try repairing the GRUB bootloader with Boot Repair. Open the terminal and type:

sudo add-apt-repository ppa:yannubuntu/boot-repair  

sudo apt update  

sudo apt install -y boot-repair

sudo boot-repair

Open the Boot Repair application and select Advanced Options -> Main Options tab -> check Reinstall GRUB and Unhide boot menu as shown in the below screenshot. Click the Apply button. Then reboot the computer with sudo reboot

enter image description here

If the OSs were installed in different modes, dual booting Windows and Ubuntu can't work.

enter image description here
^{BIOS vs. UEFI}

If you have installed Ubuntu in legacy mode on the same drive with GPT partitioning, you can use Boot Repair's Advanced options to uninstall grub-pc and install grub-efi-amd64. That converts the Ubuntu installation from BIOS boot to UEFI boot, the same firmware as most recently manufactured laptops with Windows pre-installed have.

Converting Ubuntu into UEFI mode

Start Boot-Repair, and select Advanced options -> GRUB location tab.

If you do not see a Separate /boot/efi partition option, this means that your PC does not have any UEFI partition.

If you see a Separate /boot/efi partition option, put a checkmark in the checkbox to the left of it, then click the Apply button in the lower right corner.

Set up your BIOS so that it boots the hard drive in UEFI mode. The way to adjust this setting depends on the specific model of the computer, but generally this setting is located in the boot priority settings under the Boot tab of the BIOS/UEFI setup utility.

For more information about converting Ubuntu into UEFI mode review https://help.ubuntu.com/community/UEFI in the section about Converting Ubuntu into UEFI mode.

The grub bootloader can also be converted in the opposite direction from UEFI to BIOS. Linux can boot fine from a GPT disk in BIOS mode. See this answer: Convert from EFI to BIOS boot

edited 2 days ago

answered Dec 4 at 4:11

karel

55.7k11124141

add a comment |

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4 Answers
4

active

oldest

votes

4 Answers
4

active

oldest

votes

up vote
3
down vote

accepted

Disable the hibernation mode and Fast Boot in Windows.

Open command prompt as administrator and execute :

powercfg /h off

Update :

sudo mount /dev/sdXXX /mnt

sudo mount /dev/sdXX /mnt/boot/efi

for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

sudo chroot /mnt

grub-install /dev/sdX

update-grub

Note:

sdX = disk | sdXX = efi partition | sdXXX = system partition

To identify the partition numbers use GParted - it is included in the Ubuntu installation media.

Boot into BIOS and select Ubuntu in UEFI settings to be the default operating system to boot.

edited Apr 12 '17 at 9:46

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

Thanks! I can't see Energy Settings in the control panel?
– Haim
Dec 10 '15 at 18:33

@Haim : It is there ... something with energy ... search through the old version of control panel ... maybe fast boot is already disabled after you executed the command. :)
– cl-netbox
Dec 10 '15 at 18:35

1

Ok, I restarted and still the boot menu doesn't show UBUNTU
– Haim
Dec 10 '15 at 18:39

@Haim : Did you switch the default operating system to Ubuntu in BIOS / UEFI settings ? :)
– cl-netbox
Dec 10 '15 at 18:41

where would I do that? BTW thanks for trying to help me out
– Haim
Dec 10 '15 at 20:21

|
show 2 more comments

up vote
3
down vote

accepted

Disable the hibernation mode and Fast Boot in Windows.

Open command prompt as administrator and execute :

powercfg /h off

Update :

sudo mount /dev/sdXXX /mnt

sudo mount /dev/sdXX /mnt/boot/efi

for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

sudo chroot /mnt

grub-install /dev/sdX

update-grub

Note:

sdX = disk | sdXX = efi partition | sdXXX = system partition

To identify the partition numbers use GParted - it is included in the Ubuntu installation media.

Boot into BIOS and select Ubuntu in UEFI settings to be the default operating system to boot.

edited Apr 12 '17 at 9:46

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

Thanks! I can't see Energy Settings in the control panel?
– Haim
Dec 10 '15 at 18:33

@Haim : It is there ... something with energy ... search through the old version of control panel ... maybe fast boot is already disabled after you executed the command. :)
– cl-netbox
Dec 10 '15 at 18:35

1

Ok, I restarted and still the boot menu doesn't show UBUNTU
– Haim
Dec 10 '15 at 18:39

@Haim : Did you switch the default operating system to Ubuntu in BIOS / UEFI settings ? :)
– cl-netbox
Dec 10 '15 at 18:41

where would I do that? BTW thanks for trying to help me out
– Haim
Dec 10 '15 at 20:21

|
show 2 more comments

up vote
3
down vote

accepted

Disable the hibernation mode and Fast Boot in Windows.

Open command prompt as administrator and execute :

powercfg /h off

Update :

sudo mount /dev/sdXXX /mnt

sudo mount /dev/sdXX /mnt/boot/efi

for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

sudo chroot /mnt

grub-install /dev/sdX

update-grub

Note:

sdX = disk | sdXX = efi partition | sdXXX = system partition

To identify the partition numbers use GParted - it is included in the Ubuntu installation media.

Boot into BIOS and select Ubuntu in UEFI settings to be the default operating system to boot.

edited Apr 12 '17 at 9:46

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

Disable the hibernation mode and Fast Boot in Windows.

Open command prompt as administrator and execute :

powercfg /h off

Update :

sudo mount /dev/sdXXX /mnt

sudo mount /dev/sdXX /mnt/boot/efi

for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done

sudo chroot /mnt

grub-install /dev/sdX

update-grub

Note:

sdX = disk | sdXX = efi partition | sdXXX = system partition

To identify the partition numbers use GParted - it is included in the Ubuntu installation media.

Boot into BIOS and select Ubuntu in UEFI settings to be the default operating system to boot.

edited Apr 12 '17 at 9:46

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

edited Apr 12 '17 at 9:46

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

answered Dec 10 '15 at 18:23

cl-netbox

25.7k572113

Thanks! I can't see Energy Settings in the control panel?
– Haim
Dec 10 '15 at 18:33

@Haim : It is there ... something with energy ... search through the old version of control panel ... maybe fast boot is already disabled after you executed the command. :)
– cl-netbox
Dec 10 '15 at 18:35

1

Ok, I restarted and still the boot menu doesn't show UBUNTU
– Haim
Dec 10 '15 at 18:39

@Haim : Did you switch the default operating system to Ubuntu in BIOS / UEFI settings ? :)
– cl-netbox
Dec 10 '15 at 18:41

where would I do that? BTW thanks for trying to help me out
– Haim
Dec 10 '15 at 20:21

|
show 2 more comments

Thanks! I can't see Energy Settings in the control panel?
– Haim
Dec 10 '15 at 18:33

@Haim : It is there ... something with energy ... search through the old version of control panel ... maybe fast boot is already disabled after you executed the command. :)
– cl-netbox
Dec 10 '15 at 18:35

1

Ok, I restarted and still the boot menu doesn't show UBUNTU
– Haim
Dec 10 '15 at 18:39

@Haim : Did you switch the default operating system to Ubuntu in BIOS / UEFI settings ? :)
– cl-netbox
Dec 10 '15 at 18:41

where would I do that? BTW thanks for trying to help me out
– Haim
Dec 10 '15 at 20:21

Thanks! I can't see Energy Settings in the control panel?
– Haim
Dec 10 '15 at 18:33

@Haim : It is there ... something with energy ... search through the old version of control panel ... maybe fast boot is already disabled after you executed the command. :)
– cl-netbox
Dec 10 '15 at 18:35

Ok, I restarted and still the boot menu doesn't show UBUNTU
– Haim
Dec 10 '15 at 18:39

@Haim : Did you switch the default operating system to Ubuntu in BIOS / UEFI settings ? :)
– cl-netbox
Dec 10 '15 at 18:41

where would I do that? BTW thanks for trying to help me out
– Haim
Dec 10 '15 at 20:21

|
show 2 more comments

up vote
1
down vote

answered Nov 11 at 7:53

Patrick Lemke

112

add a comment |

up vote
1
down vote

answered Nov 11 at 7:53

Patrick Lemke

112

add a comment |

up vote
1
down vote

answered Nov 11 at 7:53

Patrick Lemke

112

answered Nov 11 at 7:53

Patrick Lemke

112

answered Nov 11 at 7:53

Patrick Lemke

112

answered Nov 11 at 7:53

Patrick Lemke

112

answered Nov 11 at 7:53

Patrick Lemke

112

add a comment |

up vote
0
down vote

Shutdown. Then press F12 on boot and use arrows to choose ubuntu (note lowercase).

Also, you should try shutting down, press F2 to open BIOS/UEFI settings and disable Secure Boot and make ubuntu top priority. Then GRUB can boot Windows.

edited Dec 14 '15 at 15:20

hg8

9,539125388

answered Dec 10 '15 at 18:26

juniorRubyist

15811

3

The problem us that UBUNTU doesn't show in the list of boot options
– Haim
Dec 10 '15 at 18:33

1

I had the same problem, because UEFI was pulling up the Windows 10 bootloader not GRUB.
– Rick Chatham
Mar 24 '16 at 3:29

add a comment |

up vote
0
down vote

Shutdown. Then press F12 on boot and use arrows to choose ubuntu (note lowercase).

Also, you should try shutting down, press F2 to open BIOS/UEFI settings and disable Secure Boot and make ubuntu top priority. Then GRUB can boot Windows.

edited Dec 14 '15 at 15:20

hg8

9,539125388

answered Dec 10 '15 at 18:26

juniorRubyist

15811

3

The problem us that UBUNTU doesn't show in the list of boot options
– Haim
Dec 10 '15 at 18:33

1

I had the same problem, because UEFI was pulling up the Windows 10 bootloader not GRUB.
– Rick Chatham
Mar 24 '16 at 3:29

add a comment |

up vote
0
down vote

Shutdown. Then press F12 on boot and use arrows to choose ubuntu (note lowercase).

Also, you should try shutting down, press F2 to open BIOS/UEFI settings and disable Secure Boot and make ubuntu top priority. Then GRUB can boot Windows.

edited Dec 14 '15 at 15:20

hg8

9,539125388

answered Dec 10 '15 at 18:26

juniorRubyist

15811

Shutdown. Then press F12 on boot and use arrows to choose ubuntu (note lowercase).

Also, you should try shutting down, press F2 to open BIOS/UEFI settings and disable Secure Boot and make ubuntu top priority. Then GRUB can boot Windows.

edited Dec 14 '15 at 15:20

hg8

9,539125388

answered Dec 10 '15 at 18:26

juniorRubyist

15811

edited Dec 14 '15 at 15:20

hg8

9,539125388

edited Dec 14 '15 at 15:20

hg8

9,539125388

edited Dec 14 '15 at 15:20

hg8

9,539125388

answered Dec 10 '15 at 18:26

juniorRubyist

15811

answered Dec 10 '15 at 18:26

juniorRubyist

15811

answered Dec 10 '15 at 18:26

juniorRubyist

15811

3

The problem us that UBUNTU doesn't show in the list of boot options
– Haim
Dec 10 '15 at 18:33

1

I had the same problem, because UEFI was pulling up the Windows 10 bootloader not GRUB.
– Rick Chatham
Mar 24 '16 at 3:29

add a comment |

3

The problem us that UBUNTU doesn't show in the list of boot options
– Haim
Dec 10 '15 at 18:33

1

I had the same problem, because UEFI was pulling up the Windows 10 bootloader not GRUB.
– Rick Chatham
Mar 24 '16 at 3:29

The problem us that UBUNTU doesn't show in the list of boot options
– Haim
Dec 10 '15 at 18:33

I had the same problem, because UEFI was pulling up the Windows 10 bootloader not GRUB.
– Rick Chatham
Mar 24 '16 at 3:29

add a comment |

up vote
0
down vote

From Ubuntu open the terminal and type:

sudo update-grub && sudo reboot

If this doesn't work try repairing the GRUB bootloader with Boot Repair. Open the terminal and type:

sudo add-apt-repository ppa:yannubuntu/boot-repair  

sudo apt update  

sudo apt install -y boot-repair

sudo boot-repair

enter image description here

If the OSs were installed in different modes, dual booting Windows and Ubuntu can't work.

enter image description here
^{BIOS vs. UEFI}

Converting Ubuntu into UEFI mode

Start Boot-Repair, and select Advanced options -> GRUB location tab.

If you do not see a Separate /boot/efi partition option, this means that your PC does not have any UEFI partition.

If you see a Separate /boot/efi partition option, put a checkmark in the checkbox to the left of it, then click the Apply button in the lower right corner.

Set up your BIOS so that it boots the hard drive in UEFI mode. The way to adjust this setting depends on the specific model of the computer, but generally this setting is located in the boot priority settings under the Boot tab of the BIOS/UEFI setup utility.

For more information about converting Ubuntu into UEFI mode review https://help.ubuntu.com/community/UEFI in the section about Converting Ubuntu into UEFI mode.

The grub bootloader can also be converted in the opposite direction from UEFI to BIOS. Linux can boot fine from a GPT disk in BIOS mode. See this answer: Convert from EFI to BIOS boot

edited 2 days ago

answered Dec 4 at 4:11

karel

55.7k11124141

add a comment |

up vote
0
down vote

From Ubuntu open the terminal and type:

sudo update-grub && sudo reboot

If this doesn't work try repairing the GRUB bootloader with Boot Repair. Open the terminal and type:

sudo add-apt-repository ppa:yannubuntu/boot-repair  

sudo apt update  

sudo apt install -y boot-repair

sudo boot-repair

enter image description here

If the OSs were installed in different modes, dual booting Windows and Ubuntu can't work.

enter image description here
^{BIOS vs. UEFI}

Converting Ubuntu into UEFI mode

Start Boot-Repair, and select Advanced options -> GRUB location tab.

If you do not see a Separate /boot/efi partition option, this means that your PC does not have any UEFI partition.

If you see a Separate /boot/efi partition option, put a checkmark in the checkbox to the left of it, then click the Apply button in the lower right corner.

Set up your BIOS so that it boots the hard drive in UEFI mode. The way to adjust this setting depends on the specific model of the computer, but generally this setting is located in the boot priority settings under the Boot tab of the BIOS/UEFI setup utility.

For more information about converting Ubuntu into UEFI mode review https://help.ubuntu.com/community/UEFI in the section about Converting Ubuntu into UEFI mode.

The grub bootloader can also be converted in the opposite direction from UEFI to BIOS. Linux can boot fine from a GPT disk in BIOS mode. See this answer: Convert from EFI to BIOS boot

edited 2 days ago

answered Dec 4 at 4:11

karel

55.7k11124141

add a comment |

up vote
0
down vote

From Ubuntu open the terminal and type:

sudo update-grub && sudo reboot

If this doesn't work try repairing the GRUB bootloader with Boot Repair. Open the terminal and type:

sudo add-apt-repository ppa:yannubuntu/boot-repair  

sudo apt update  

sudo apt install -y boot-repair

sudo boot-repair

enter image description here

If the OSs were installed in different modes, dual booting Windows and Ubuntu can't work.

enter image description here
^{BIOS vs. UEFI}

Converting Ubuntu into UEFI mode

Start Boot-Repair, and select Advanced options -> GRUB location tab.

If you do not see a Separate /boot/efi partition option, this means that your PC does not have any UEFI partition.

If you see a Separate /boot/efi partition option, put a checkmark in the checkbox to the left of it, then click the Apply button in the lower right corner.

Set up your BIOS so that it boots the hard drive in UEFI mode. The way to adjust this setting depends on the specific model of the computer, but generally this setting is located in the boot priority settings under the Boot tab of the BIOS/UEFI setup utility.

For more information about converting Ubuntu into UEFI mode review https://help.ubuntu.com/community/UEFI in the section about Converting Ubuntu into UEFI mode.

The grub bootloader can also be converted in the opposite direction from UEFI to BIOS. Linux can boot fine from a GPT disk in BIOS mode. See this answer: Convert from EFI to BIOS boot

edited 2 days ago

answered Dec 4 at 4:11

karel

55.7k11124141

From Ubuntu open the terminal and type:

sudo update-grub && sudo reboot

If this doesn't work try repairing the GRUB bootloader with Boot Repair. Open the terminal and type:

sudo add-apt-repository ppa:yannubuntu/boot-repair  

sudo apt update  

sudo apt install -y boot-repair

sudo boot-repair

enter image description here

If the OSs were installed in different modes, dual booting Windows and Ubuntu can't work.

enter image description here
^{BIOS vs. UEFI}

Converting Ubuntu into UEFI mode

Start Boot-Repair, and select Advanced options -> GRUB location tab.

If you do not see a Separate /boot/efi partition option, this means that your PC does not have any UEFI partition.

If you see a Separate /boot/efi partition option, put a checkmark in the checkbox to the left of it, then click the Apply button in the lower right corner.

Set up your BIOS so that it boots the hard drive in UEFI mode. The way to adjust this setting depends on the specific model of the computer, but generally this setting is located in the boot priority settings under the Boot tab of the BIOS/UEFI setup utility.

For more information about converting Ubuntu into UEFI mode review https://help.ubuntu.com/community/UEFI in the section about Converting Ubuntu into UEFI mode.

The grub bootloader can also be converted in the opposite direction from UEFI to BIOS. Linux can boot fine from a GPT disk in BIOS mode. See this answer: Convert from EFI to BIOS boot

edited 2 days ago

answered Dec 4 at 4:11

karel

55.7k11124141

edited 2 days ago

answered Dec 4 at 4:11

karel

55.7k11124141

answered Dec 4 at 4:11

karel

55.7k11124141

answered Dec 4 at 4:11

karel

55.7k11124141

add a comment |

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