Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have an HP Pavilion Sleekbook 14 laptop that I have installed Ubuntu 12.10 dual boot with the original windows 8. I used boot-repair to get set up to boot into grub.

My issue is that I have not been able to get it to boot straight off the new efi file that was created. I have looked around the boot options in the bios screen, but it does not give me a choice for Ubuntu. The only way I can boot into Ubuntu is to press F9 when I power the system on and then manually navigate to the ubuntu efi file. This works but if I am not paying close attention, it will boot into windows.

After I finished running boot-repair, it told me to boot from sda2/EFI/ubuntu/shimx64.efi I have seen some suggestions that I should move this file in place of the windows bootmgfw.efi, but I am concerned that I will break things and not be able to boot the windows 8 installation. While I already dislike win8 even more than win7, I do need it from time to time for a couple tasks...

The details of my boot-repair are here:

share|improve this question

11 Answers 11

I had this same problem with my HP Pavilion g6 when trying to dual boot Ubuntu 12.04.3 LTS and Windows 8. That is, even after "successfully" running Boot-Repair, I still had the notebook booting directly into Windows 8. If I pressed F9 before the HP symbol showed up, I was able to get into a Boot Menu (HP's menu? I don't know...) and from there, to select the "Ubuntu" entry, which in turn took me to GRUB 2 and finally to my Ubuntu installation.

Still, I wanted to be able to have the computer boot directly to Linux, without the need for any user intervention.

In the end, Rod Smith's answer above, combined with the information that I found in another forum, did the trick for me. I have Secure Boot disabled and Legacy Boot also disabled.

This is what I did:

  • I booted into my Ubuntu installation using the trick of the F9 key in the start up to be able to choose the boot loader.
  • Once in Ubuntu, I opened a terminal.
  • Using the command below, I checked where Windows boot loader was located:

    $ sudo efibootmgr -v
  • In my case, the original boot loader was in here: /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi . Please note that in your computer it might be in a different place. If so, you will need to adjust the commands below.

  • As per Rod's recommendation in his answer (the one about how to repair the boot loader manually), I made a backup of that file by moving it one level down:

    $ sudo cp /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi /boot/efi/EFI/Microsoft/bootmgfw.efi
  • Finally, I copied GRUB2's boot loader in that place, "tricking" the system into loading the boot loader I wanted instead of Windows' original boot loader.

    $ sudo cp /boot/efi/EFI/ubuntu/grubx64.efi /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi

So finally I had my dual boot working with GRUB2. In case Windows overwrites the boot loader again after an update (as it did with me), I already know the steps to get grub back to its place.

Hope this helps someone. Please let me know if there are any issues with my solution.

share|improve this answer
Thanks, it helped, however I could not boot into Windows. At startup, it starts GRUB and in GRUB, the 'Windows Boot Manager' option goes to GRUB menu again (expectable as this links to the same .efi file). It looked like that issue though I was not lucky with boot-repair. I solved it by going to Ubuntu, in /etc/grub.d/ filling the file 40_custom by copying the Windows Boot entry I had in my ubuntu paste and editing the url of .efi file to point to the backup of bootmgfw.efi. So the menuentry contains chainloader /EFI/Microsoft/bootmgfw.efi – Vince Jan 8 '15 at 0:23
that menuentry doesn't work for me – Pierre May 14 at 13:35

Ordinarily, running Boot Repair backs up Microsoft's original boot loader file (bootmgfw.efi) as bootmgfw.efi.bkp and replaces the original bootmgfw.efi file with a copy of GRUB (or shim), and the Boot Repair output you posted would show this; however, I don't see such a backup file. Thus, I recommend you do one of three things:

  • Run Boot Repair again, but look for options related to backing up and replacing the Microsoft boot loader. Activate those options to continue the process. GRUB might or might not be able to launch Windows; that seems hit or miss -- and more "miss" if you leave Secure Boot active.
  • Do the job manually: From Linux, back up /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi (I recommend moving it down one level, to /boot/efi/EFI/Microsoft/bootmgfw.efi, rather than renaming it to bootmgfw.efi.bkp, since the latter is non-standard and makes tools other than Boot Repair and Ubuntu's GRUB unable to locate it). Copy /boot/efi/EFI/ubuntu/grubx64.efi in its place; or if you plan to keep Secure Boot working, copy /boot/efi/EFI/ubuntu/shimx64.efi in its place and copy grubx64.efi to /boot/efi/EFI/Microsoft/Boot using its original name. You'll then need to modify your GRUB configuration to enable it to launch the Windows boot loader in its new location or under its new name. (I've heard that GRUB can't yet launch the Windows boot loader in Secure Boot mode, though, so if you want to launch Windows from GRUB, you may need to disable Secure Boot. OTOH, I've never tried this myself, so I could be mistaken about GRUB's capabilities in this respect.)
  • Disable Secure Boot, then boot to Linux and install my rEFInd boot manager by using the Debian package. Once that's done, type sudo /boot/efi/EFI/refind /boot/efi/EFI/Microsoft/Boot. The latter command moves and renames files in a way that's analogous to the manual procedure I just described or to what Boot Repair does, but it sets up rEFInd as the default boot loader rather than GRUB. If you want to use Secure Boot, you'll be able to do so by juggling files and installing a new version of shim (Ubuntu's shim is early enough that it won't work properly with rEFInd). Installing rEFInd in this way enables you to boot without using GRUB, and the combination of the install script (executed by the package system when you install the Debian package) and the script work around the problems you're having.

For the record, the problems you're having are related to known bugs in HP's EFI implementation. Basically, the firmware is hard-coded to boot from Microsoft's boot loader and to make it difficult or impossible to boot from anything else. I strongly recommend you complain to HP about this; they won't fix such problems unless people complain.

Of the three solutions, using Boot Repair is likely to be the easiest to get working; but as I noted, the non-standard naming that Boot Repair uses can end up causing problems for other utilities in the future. The manual adjustments will require more effort to get working, but will be cleaner in the long run. Some people have reported problems getting GRUB to chainload the Windows boot loader, so either option could give you headaches on that score. rEFInd is much more likely to boot either Linux or Windows without problems, but as you can tell from the procedure, getting it working is likely to require a bit more effort than running Boot Repair again, although probably less than doing manual file-juggling. Using rEFInd in conjunction with Secure Boot requires more hoop-jumping at the moment. (See rEFInd's documentation for details.) rEFInd also presents a prettier user interface than GRUB, which might or might not be important to you.

There's risk involved in all three solutions; EFI implementations vary far too much amongst themselves, which means that either an automated or a manual procedure that works well on one computer can fail miserably on another. To protect yourself, I recommend backing up your ESP (normally /boot/efi under Linux); just pack the files up in a tarball or copy them to a backup directory. If something goes badly wrong, you can boot up with an emergency disc and restore the files. That will probably get the computer booting again.

share|improve this answer
Thank you very much! I have not attempted any of your options yet, but will this weekend. – maddentim Jan 18 '13 at 22:52
Your rEFInd boot manager looks interesting. So, you are saying I can disable Secure Boot and still use Win8? One question I have is that when I attempted to tar /boot/efi, tar gave me errors on some of the files in the ubuntu folder. They have strange names like 'ame="App.lic'. See lines 809 to 817 in This last install was actually my third attempt. I am thinking they are garbage and can be removed. What do you think? I will post back after I complete one of your steps. – maddentim Jan 18 '13 at 23:01
I've seen several reports of people disabling Secure Boot and having no problems booting Windows, so that's not an issue. If you want to keep it enabled for security benefits, that's understandable, but you shouldn't worry about Windows becoming unbootable. As to your tar error, that sounds like a script had a bug and created files with strange names. I hadn't noticed those files in your output before, but it's conceivable that whatever bug created them is also responsible for your boot problems. If so, using rEFInd is likely to work around the problem, but the other solutions might fail. – Rod Smith Jan 19 '13 at 3:50
rEFInd did not install successfully. I think LovinBuntu has the issue identified. /boot/EFI is read-only. Here is part of the output: mkdir: cannot create directory /boot/efi//EFI/refind': Read-only file system cp: cannot create regular file /boot/efi//EFI/refind/refind_x64.efi': No such file or directory Installing driver for ext4 (ext4_x64.efi) mkdir: cannot create directory `/boot/efi//EFI/refind': Read-only file system Copied rEFInd binary files – maddentim Jan 23 '13 at 1:43

Hewlett-Packard's UEFI has been giving me heartache for a while. Your fix helped me to restart my HP laptop in GRUB again - without pressing F9 first.

I had one problem: after your fix, I could select Windows 8 in GRUB, but Windows 8 then refused to start and I was shown the GRUB menu again.

My fix:

  1. Copying the original Microsoft efi-file to /boot/efi/EFI/Microsoft/Boot/bootmgf2.efi
  2. Editing /boot/grub/grub.cfg to recognise the renamed Microsoft efi-file

Laptop now boots to GRUB, Ubuntu and Windows 8 now start OK from GRUB.

share|improve this answer

I faced the same problem on HP ProBook 4340s with original Windows 8 already overwritten by new Kubuntu 15.04 (I prefer no dual boot). Among other tries, I also tried Boot-Repair (both from HD after its installation and via boot-repair-disk), but that exercise was most probably unnecessary.

What made the trick was the following changes in the BIOS Setup (after computer start push F10 - go to System Configuration - open Boot Options):

1) Check Customized Boot

2) Check off SecureBoot

3) Boot Mode: choose UEFI Hybrid or UEFI Native (I chose UEFI Native)

4) UEFI Boot Order: put Customized Boot to the top

5) Define Customized Boot Option: choose Add + put the setting: \EFI\ubuntu\grubx64.efi

We found the correct path string when opening the GRUB via the Boot from EFI File option in the Fast Boot Options (F9). In the beginning, the options list contained:

OS boot Manager

Boot from EFI File

After addting the Customized Boot option, it was added to the list:

Customized Boot

OS boot Manager

Boot from EFI File

share|improve this answer
Did exactly that here on a hp zbook 15, no luck – cmbarbu Dec 23 '15 at 6:24

You are affected by this bug:


  1. via Gparted, create another EFI partition (FAT32, 200MB, located inside the first 100GB of the disk)
  2. move the 'boot' flag on it
  3. make Ubuntu use this new ESP (eg via Boot-Repair --> Recommended Repair).
share|improve this answer
Well, creating another ESP inside the first 100GB means moving the win8 partition over 200MB... Need to be careful there I think. Might break Windows booting. Maybe I should just blow it away. I don't even like it anyway. I only really need it to watch netflix! – maddentim Jan 23 '13 at 2:09
Please update Boot-Repair ('boot-sav' and 'boot-repair' packages) then run the Recommended Repair , and indicate the new URL that will appear. – LovinBuntu Jan 23 '13 at 7:34
done. – maddentim Jan 23 '13 at 12:28

It's a further answer for mairabc's one for those who, like Vince or I, can't boot into windows. You'll need the fs_uuid:

# grub-probe --target=fs_uuid /boot/efi/EFI/Microsoft/bootmgfw.efi

and the hints_string:

# grub-probe --target=hints_string /boot/efi/EFI/Microsoft/bootmgfw.efi

Then you have to edit the file /etc/grub.d/40_custom like that:

menuentry "Microsoft Windows x86_64 UEFI-GPT" {
    insmod part_gpt
    insmod fat
    insmod search_fs_uuid
    insmod chain
    search --fs-uuid --no-floppy --set=root your_hints_string your_fs_uuid
    chainloader /EFI/Microsoft/bootmgfw.efi

Save it and do a

# update-grub

reboot into windows...

share|improve this answer

After installation of Ubuntu 14.04 64 bit on a notebook HP-15-r248nf with Windows 8 upgraded to 10 installed which happened smoothly besides a problem with a dropping Wifi connection with a Realtek Wifi driver (solved using echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf ), the PC still booted under Windows. Ubuntu through grub became only available when using the ESC key during the boot phase. boot-repair did not help, it actually installed quite a number of options in grub, but grub was still not directly accessible. In fact it was simply required to change the boot order from the default. At the boot step after switching on the PC type Esc, then F10 to enter the BIOS setup. Go to the tab “System configuration”, down to “Boot options”. Press Enter. Disable “Secure boot” Go down to UEFI Boot order. I put using F5/F6 the OS Boot manager on top (probably not required). Select “OS boot manager” with Enter. Using F5/F6 move ubuntu to the top above Windows Boot Manager. Leave the Bios setup with F10 Save/exit and confirm the changes you made. Now you will be directed to grub where you chose the option Ubuntu marked with a star on top which will boot automatically after a short delay.

share|improve this answer
Please format this a bit. I can't even tell if it's an answer. – Zacharee1 Oct 17 '15 at 19:55

This is NOT a Windows problem! The HP firmware is totally buggy as it does not use (or even support properly) the UEFI firmare variable "BootOrder". I think the only fix to this is to replace the Windows boot loader file (as some already mentioned) with your grub.efi.

share|improve this answer

My scenario is similar to Michal Žarnay's Aug 19 '15 at 15:20 post: I got some HP Pavillion Slimline 400-314 mini towers, had no need for the pre-installed Windows 8, so immediately repartitioned the HDD and installed Ubuntu 14.04 and Grub2.

Unfortunately, the Pavillion's BIOS menu is extremely limited in boot configuration. It doesn't have most of the fancy choices that most others are describing here. Even attempting to change boot order fails to stick.

The ONLY solution I've gotten to work is to use the "alternative naming" workaround as described in the "Alternative Naming Solutions" section of this blog.

share|improve this answer
Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Mark Kirby Jan 7 at 21:38

I faced the similar problem after installing Cent-OS 7 over windows 10. here is the below process i followed.

  • initial OS was windows 10
  • installed cent-os 7 using uefi usb created by rufus

problem : windows 10 was loading and cent OS boot menu was not even getting displayed.

  1. How i solved:
  2. went to Bios
  3. enabled legacy boot ( just an extra step for future precautions)
  4. go to Boot options
  5. click OS boot manager
  6. Move CentOS UEFI above windows : press f10 to save
  7. click OD bootmanager again and verify it.
  8. press f10 to save and exit

Now your system will boot in centos UEFI

since we enabled legacy boot we can choose esc key to go to bios or other boot options

share|improve this answer

I found a way to get my HP Pavilion g7-2269wm (UEFI) to boot rEFInd (GRUB may also be possible) without replacing bootmgfw.efi with rEFInd or GRUB

I installed rEFInd and added rEFInd to the boot managers list using sudo efibootmgr -c -d /dev/sda -p 2 -L "rEFInd" -l "\EFI\refind\shimx64.efi"

Rebooted using F9 to select rEFInd and then selected Ubuntu.

Then renamed bootmgfw.efi to bootmgfwms.efi using

sudo mv /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi /boot/efi/EFI/Microsoft/Boot/bootmgfwms.efi

Then I rebooted and it rebooted into rEFInd without having to use F9.The Windows 10 entry was now missing so I selected Ubuntu.

Then to get back the Windows 10 entry I ran

sudo mv /boot/efi/EFI/Microsoft/Boot/bootmgfwms.efi /boot/EFI/EFI/Microsoft/Boot/bootmgfw.efi

Then I rebooted and rEFInd comes without pressing F9 and Windows 10 appears as a entry.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.