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How to boot into Ubuntu or Windows

How can I repair grub? (How to get Ubuntu back after installing Windows?)Dual boot Win 8 / Ubuntu loads only WinCan not boot anymore after a boot repairBoot repair: “GRUB is still present. Please try again ” message is displayed while reparing the boot having windows 8.1 and ubuntu 13.10My dual-boot Ubuntu/Windos boots right into Windowshow to add windows 8 entry to grub after boot-repairCan't Boot into Windows 8Dual Boot Windows 8.1 alongside Ubuntu 14.04Unable to dual-boot Ubuntu 14.04 with pre-installed Windows 8.1 (Sony Vaio S series Laptop)After boot repair, Windows does not bootMultiboot problem with windows 8.1Can not boot Boot-Repair live cdUnable to boot into ubuntu after windows update

1

I have installed Ubuntu 14.04 (Trusty Tahr) along with Windows 8.1. When I turn on the computer I don't get an option to boot into Ubuntu, and I go strait into Windows. How can I solve this?

I have tried using boot-repair, but I could not install it on live Ubuntu (as the Internet connection is not working), so it is working in my 'installed' version of Ubuntu. There I am not able to use the 'recommended repair' option.

Here is my pastebin link: http://paste.ubuntu.com/15306542/

14.04 dual-boot grub2 boot-repair

share|improve this question

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

asked Mar 6 '16 at 12:42

FresiaFresia

613

bumped to the homepage by Community♦ 8 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Looks like you simply have to install the GRUB boot loader to /dev/sda. Probably you selected something else in the installer (probably /dev/sda7).
  
  – Byte Commander
  Mar 6 '16 at 12:51
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Possible duplicate of How can I repair grub? (How to get Ubuntu back after installing Windows?)
  
  – Byte Commander
  Mar 6 '16 at 12:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You have an HP, which violates UEFI spec and uses description to boot. You need to create /EFI/Boot/bootx64.efi that really is shimx64.efi and boot hard drive or fallback entry in UEFI. askubuntu.com/questions/486752/… and: askubuntu.com/questions/597052/…
  
  – oldfred
  Mar 6 '16 at 16:02
  

  
  
  
  

add a comment | 

1

I have installed Ubuntu 14.04 (Trusty Tahr) along with Windows 8.1. When I turn on the computer I don't get an option to boot into Ubuntu, and I go strait into Windows. How can I solve this?

I have tried using boot-repair, but I could not install it on live Ubuntu (as the Internet connection is not working), so it is working in my 'installed' version of Ubuntu. There I am not able to use the 'recommended repair' option.

Here is my pastebin link: http://paste.ubuntu.com/15306542/

14.04 dual-boot grub2 boot-repair

share|improve this question

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

asked Mar 6 '16 at 12:42

FresiaFresia

613

bumped to the homepage by Community♦ 8 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Looks like you simply have to install the GRUB boot loader to /dev/sda. Probably you selected something else in the installer (probably /dev/sda7).
  
  – Byte Commander
  Mar 6 '16 at 12:51
  

  
  
  
  


• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  Possible duplicate of How can I repair grub? (How to get Ubuntu back after installing Windows?)
  
  – Byte Commander
  Mar 6 '16 at 12:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You have an HP, which violates UEFI spec and uses description to boot. You need to create /EFI/Boot/bootx64.efi that really is shimx64.efi and boot hard drive or fallback entry in UEFI. askubuntu.com/questions/486752/… and: askubuntu.com/questions/597052/…
  
  – oldfred
  Mar 6 '16 at 16:02
  

  
  
  
  

add a comment | 

I have installed Ubuntu 14.04 (Trusty Tahr) along with Windows 8.1. When I turn on the computer I don't get an option to boot into Ubuntu, and I go strait into Windows. How can I solve this?

I have tried using boot-repair, but I could not install it on live Ubuntu (as the Internet connection is not working), so it is working in my 'installed' version of Ubuntu. There I am not able to use the 'recommended repair' option.

Here is my pastebin link: http://paste.ubuntu.com/15306542/

14.04 dual-boot grub2 boot-repair

share|improve this question

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

asked Mar 6 '16 at 12:42

FresiaFresia

613

share|improve this question

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

asked Mar 6 '16 at 12:42

FresiaFresia

613

share|improve this question

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

asked Mar 6 '16 at 12:42

FresiaFresia

613

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

edited Mar 6 '16 at 19:04

Peter Mortensen

1,03721016

asked Mar 6 '16 at 12:42

FresiaFresia

613

asked Mar 6 '16 at 12:42

FresiaFresia

613

1 Answer
1

active

oldest

votes

0

Step 1 : Disable hibernation and fast startup in Windows.

Open command prompt as administrator and execute :

powercfg /h off 

Open Windows Control Panel.

Go to the Power Settings.

Uncheck Fast startup.

Step 2 : Shutdown the machine completely - do NOT reboot.

Step 3 : Reinstall GRUB boot loader for Ubuntu in EFI mode.

Boot from Ubuntu installation media.

Select Try Ubuntu without installing.

Open a terminal and execute:

sudo mount /dev/sda7 /mnt
sudo mount /dev/sda2 /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/sda
update-grub 

Note:

sda = disk | sda2 = efi partition | sda7 = system partition

Step 4 : Boot into BIOS and select Ubuntu as default system.

share|improve this answer

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114

add a comment | 

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0

Step 1 : Disable hibernation and fast startup in Windows.

Open command prompt as administrator and execute :

powercfg /h off 

Open Windows Control Panel.

Go to the Power Settings.

Uncheck Fast startup.

Step 2 : Shutdown the machine completely - do NOT reboot.

Step 3 : Reinstall GRUB boot loader for Ubuntu in EFI mode.

Boot from Ubuntu installation media.

Select Try Ubuntu without installing.

Open a terminal and execute:

sudo mount /dev/sda7 /mnt
sudo mount /dev/sda2 /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/sda
update-grub 

Note:

sda = disk | sda2 = efi partition | sda7 = system partition

Step 4 : Boot into BIOS and select Ubuntu as default system.

share|improve this answer

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114

add a comment | 

0

Step 1 : Disable hibernation and fast startup in Windows.

Open command prompt as administrator and execute :

powercfg /h off 

Open Windows Control Panel.

Go to the Power Settings.

Uncheck Fast startup.

Step 2 : Shutdown the machine completely - do NOT reboot.

Step 3 : Reinstall GRUB boot loader for Ubuntu in EFI mode.

Boot from Ubuntu installation media.

Select Try Ubuntu without installing.

Open a terminal and execute:

sudo mount /dev/sda7 /mnt
sudo mount /dev/sda2 /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/sda
update-grub 

Note:

sda = disk | sda2 = efi partition | sda7 = system partition

Step 4 : Boot into BIOS and select Ubuntu as default system.

share|improve this answer

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114

add a comment | 

Step 1 : Disable hibernation and fast startup in Windows.

Open command prompt as administrator and execute :

powercfg /h off 

Open Windows Control Panel.

Go to the Power Settings.

Uncheck Fast startup.

Step 2 : Shutdown the machine completely - do NOT reboot.

Step 3 : Reinstall GRUB boot loader for Ubuntu in EFI mode.

Boot from Ubuntu installation media.

Select Try Ubuntu without installing.

Open a terminal and execute:

sudo mount /dev/sda7 /mnt
sudo mount /dev/sda2 /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/sda
update-grub 

Note:

sda = disk | sda2 = efi partition | sda7 = system partition

Step 4 : Boot into BIOS and select Ubuntu as default system.

share|improve this answer

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114

powercfg /h off 

sudo mount /dev/sda7 /mnt
sudo mount /dev/sda2 /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/sda
update-grub 

share|improve this answer

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114

answered Mar 6 '16 at 14:19

cl-netboxcl-netbox

26.1k576114