error: file efi/microsoft/boot/bootmgfw.efi not found

[Sunkins]

entries:
Fedora 20
Windows Boot Manager
when choose Windows BM
it said
error: file efi/microsoft/boot/bootmgfw.efi not found
error: you need to load the kernel first

press any key to continue...

then I press c for a command prompt
screen displayed
grub>
i just input exit
grub>exit

then the PC started LOADING Windows...normally!

what 's going on?

[Ahmad Samir]

Please post the contents of /boot/efi/EFI/fedora/grub.cfg . Also check that /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi actually exists.

[Sunkins]

I am sorry that my PC with fedora 20 has no internet access for some reasons, now I copy the grub.cfg here.
And, the fedora 20 created a new EFI partition alongside the Windows EFI partition so I cannot find /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi in my fedora's EFI partition.
Where can I get the bootmgfw.efi and put it?

here are the blocks

NAME            MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda               8:0    0 931.5G  0 disk 
├─sda1            8:1    0  1000m  0 part //oem or Windows partition
├─sda2            8:2    0   300m  0 part //Windows EFI partion
├─sda3            8:3    0  1000m  0 part //oem or Windows partition
├─sda4            8:4    0   128m  0 part //oem or Windows partition
├─sda5            8:5    0 146.5g  0 part //oem or Windows partition
├─sda6            8:6    0   256g  0 part //oem or Windows partition
├─sda7            8:7    0  29.3G  0 part //preserved space
├─sda8            8:8    0   256M  0 part /boot/efi // fedora EFI partition
├─sda9            8:9    0   512M  0 part /boot	   // fedora boot partion
└─sda10           8:10   0   456G  0 part 
  ├─fedora-root 253:0    0    64G  0 lvm  /
  ├─fedora-swap 253:1    0     8G  0 lvm  [SWAP]
  └─fedora-home 253:2    0   384G  0 lvm  /home

here is the grub.cfg

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${saved_entry}"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

terminal_output console
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora, with Linux 3.11.10-301.fc20.x86_64' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.11.10-301.fc20.x86_64-advanced-3b98fbf7-c71f-42dc-b24c-f01842fe5820' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt9'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 --hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  052d5bdd-7bb6-4ac4-bbb6-14a110f81ae4
	else
	  search --no-floppy --fs-uuid --set=root 052d5bdd-7bb6-4ac4-bbb6-14a110f81ae4
	fi
	linuxefi /vmlinuz-3.11.10-301.fc20.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root  rhgb quiet 
	initrdefi /initramfs-3.11.10-301.fc20.x86_64.img
}
menuentry 'Fedora, with Linux 0-rescue-dae3c013d43f4576bcc56af2b9d7221c' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-0-rescue-dae3c013d43f4576bcc56af2b9d7221c-advanced-3b98fbf7-c71f-42dc-b24c-f01842fe5820' {
	load_video
	insmod gzio
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt9'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 --hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  052d5bdd-7bb6-4ac4-bbb6-14a110f81ae4
	else
	  search --no-floppy --fs-uuid --set=root 052d5bdd-7bb6-4ac4-bbb6-14a110f81ae4
	fi
	linuxefi /vmlinuz-0-rescue-dae3c013d43f4576bcc56af2b9d7221c root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=fedora/root  rhgb quiet 
	initrdefi /initramfs-0-rescue-dae3c013d43f4576bcc56af2b9d7221c.img
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager' {
	  chainloader /EFI/Microsoft/Boot/bootmgfw.efi
	  boot
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

Please post the contents of /boot/efi/EFI/fedora/grub.cfg . Also check that /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi actually exists.

[Ahmad Samir]

I think the problem here is that you have more than one EFI partition, in reality you only need just one. Have a look at this post http://forums.fedoraforum.org/showth...15#post1661415

[PiElle]

I think the problem here is that you have more than one EFI partition, in reality you only need just one. Have a look at this post http://forums.fedoraforum.org/showth...15#post1661415

Yes, when installing Fedora, is better to use, without formatting it!, the already existing EFI partition.

[Sunkins]

many thanks but

i still got a problem
as said in the cited thread, I tried to copy /EFI/fedora ... to the Windows created EFI partition, and I could not get access to the directories of the Windows EFI partition.
I mean I cannot copy /boot/EFI/ etc to Windows EFI partition (sda2), so what shall I do?

In the bios, i can set the default EFI which means that I can keep both the two existing EFI partitions, but how can i copy fedora EFI to Windows EFI or copy Windows EFI to fedora EFI ?
How to make each EFI part able to boot two OSs?

[Sunkins]

I think the problem here is that you have more than one EFI partition, in reality you only need just one. Have a look at this post http://forums.fedoraforum.org/showth...15#post1661415

Thanks and I read the thread you gave me.
I still have problems.
I tried to copy Windows EFI files to fedora EFI directory, but I cannot access those Windows EFI files in /dev/sda2 -- I could not mount.

I can choose one EFI as default in BIOS so I think it's possible to keep both the two EFI partions without deleting one. Now I just want to make each EFI able to boot both the OSs.

[Sunkins]

I copied Windows/Boot/* to /boot/efi/EFI/Microsoft/Boot/*
Now it found the bootmgfw.efi

But the screen returns

Windows failed to start. A recent hardware of software change might be the case. To fix the problem:
1. Insert your Windows installation disc and ...
2. Choose your Lagrange settings, ...
3. Click "Repair your computer" ...

Infact, I can successfully boot into Windows as mentioned in the top post, so what has happened?

[Sunkins]

I tried another method and it works. The method is provided by
http://superuser.com/questions/62033...18-to-fedora19

Edit /etc/grub.d/40_custom file and add

menuentry "Windows 8 UEFI" {
insmod part_gpt
insmod fat
insmod search_fs_uuid
insmod chain
search --fs-uuid --no-floppy --set=root **4013-6F8C**
chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi
}

and then
grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

Finally, it works, there is one more entry "Windows 8 UEFI"


But I really want to know how to make /etc/grub.d/30_os-prober work? It added an invalid entry Windows Boot Manager which leads an error as mentioned above.
here I do not paste the /etc/grub.d/30_os-prober because *I think it should be the same as the file of your fedora 20* and it is too long to past in a post.

Is there anything wrong in the file /etc/grub.d/30_os-prober?

I copied Windows/Boot/* to /boot/efi/EFI/Microsoft/Boot/*
Now it found the bootmgfw.efi

But the screen returns

Windows failed to start. A recent hardware of software change might be the case. To fix the problem:
1. Insert your Windows installation disc and ...
2. Choose your Lagrange settings, ...
3. Click "Repair your computer" ...

Infact, I can successfully boot into Windows as mentioned in the top post, so what has happened?

[Ahmad Samir]

IIUC, you should use the EFI partition created by Windows, so you need to copy /boot/efi/EFI/fedora.

How did you try copying that dir and what happens exactly?

[Sunkins]

IIUC, you should use the EFI partition created by Windows, so you need to copy /boot/efi/EFI/fedora.

copy /boot/efi/EFI/fedora.to WHERE?
I described this in the previous posts. I tried to copy /boot/efi/EFI/fedora to Windows EFI partition directory, but I can not get access to the partition in either Windows or fedora. So I cannot copy files to EFI partition
I can get access to Windows OS partition and the directory and copy Windows/Boot/* to /boot/efi/EFI/Microsoft/Boot/*

So please tell me how to copy EFI files of fedora to Windows EFI directory and make the Windows EFI aware of the fedora loader?

As said in my last post, I edited 40_custom and made an alternative way to smoothly boot Windows (though with ugly status screen). Now I want to know how to change 30_os-prober file in /etc/ to make fedora EFI able to boot Windows? if it is indeed impossible with using fedora EFI only, I will give up and just use the 40_custom file to add a new entry.

How did you try copying that dir and what happens exactly?

please see http://forums.fedoraforum.org/showpo...53&postcount=8

[Ahmad Samir]

First mount the Windows EFI partition, as root:
mkdir /mnt/efi-windows
mount /dev/sda2 /mnt/efi-windows

then copy /boot/efi/EFI/fedora to /mnt/efi-windows/EFI/ . Then follow the rest of the steps from http://forums.fedoraforum.org/showth...15#post1661415 (editing /etc/fstab, running efibootmgr... etc).

[srs5694]

Having multiple ESPs is not an error, according to the EFI specification. That said, Microsoft doesn't support such configurations. I know for a fact that the Windows 7 installer malfunctions when it's shown a disk with multiple ESPs. I don't know if Windows 8 suffers from the same bug, or if anything running within Windows would do so. Thus, I do generally agree with the advice to consolidate all your ESPs into one, although in the short term, it should be possible to continue using multiple ESPs.

GRUB, like the EFI itself, should be able to cope with multiple ESPs. Indeed, the fact that your custom entry worked verifies this in reality. Thus, there's a bug in the OS-probing scripts. (Other peoples' experience points to the same conclusion.) In the short term, it's probably best to just keep using your custom entry and ignore the ones that the buggy OS prober generates, or take other steps to remove the non-functional entries.

It's imperative that you disable Fast Startup in Windows when dual-booting. Leaving that feature active can result in an inability to access shared partitions (including the ESP) from Linux and/or in filesystem corruption. It's entirely possible that this feature is what's making it impossible to write to the disk's original ESP. Note that I'm talking about a Windows feature. Many EFIs have a firmware feature with a similar name, and that feature is often OK to leave active. (It tends to take shortcuts in the system initialization, which are often OK but can sometimes make it harder to access the firmware setup utility or boot from external disks.) Disabling the firmware feature will not disable the Windows feature.

Quite honestly, I have a low opinion of GRUB 2 because of its OS prober and other problems. This is one of the reasons I forked rEFIt into rEFInd, which does a much better job of locating and running EFI boot programs than does GRUB. OTOH, setting up rEFInd with Secure Boot active can require some extra hoop-jumping. The rEFInd Secure Boot documentation goes into this in detail. With any luck, though, if you just install the rEFInd RPM, it will be mostly working -- you'll just need to add the rEFInd certificate file to your NVRAM when you reboot. OTOH, since you've gotten GRUB more-or-less working, leaving it in place may be an easier way to go for now. I mention rEFInd as an option in case you have further problems or if you simply dislike GRUB.

[Sunkins]

Thank you very much.
I just *reinstalled" my fedora yesterday.... and make it share the EFI partition with Windows.
So, the problem is no longer there.

Thank everybody here!

First mount the Windows EFI partition, as root:
mkdir /mnt/efi-windows
mount /dev/sda2 /mnt/efi-windows

then copy /boot/efi/EFI/fedora to /mnt/efi-windows/EFI/ . Then follow the rest of the steps from http://forums.fedoraforum.org/showth...15#post1661415 (editing /etc/fstab, running efibootmgr... etc).

---------- Post added at 03:27 AM ---------- Previous post was at 03:24 AM ----------

yes, you are right.
I tested the prober yesterday and understand that it should but did not create an valid entry just as the custom one. So, it might be a fault of grub2 on EFI systems.

Thank you for a so long reply. I reinstalled the fedora and let it use the same EFI partition with Windows.

Having multiple ESPs is not an error, according to the EFI specification. That said, Microsoft doesn't support such configurations. I know for a fact that the Windows 7 installer malfunctions when it's shown a disk with multiple ESPs. I don't know if Windows 8 suffers from the same bug, or if anything running within Windows would do so. Thus, I do generally agree with the advice to consolidate all your ESPs into one, although in the short term, it should be possible to continue using multiple ESPs.

GRUB, like the EFI itself, should be able to cope with multiple ESPs. Indeed, the fact that your custom entry worked verifies this in reality. Thus, there's a bug in the OS-probing scripts. (Other peoples' experience points to the same conclusion.) In the short term, it's probably best to just keep using your custom entry and ignore the ones that the buggy OS prober generates, or take other steps to remove the non-functional entries.

It's imperative that you disable Fast Startup in Windows when dual-booting. Leaving that feature active can result in an inability to access shared partitions (including the ESP) from Linux and/or in filesystem corruption. It's entirely possible that this feature is what's making it impossible to write to the disk's original ESP. Note that I'm talking about a Windows feature. Many EFIs have a firmware feature with a similar name, and that feature is often OK to leave active. (It tends to take shortcuts in the system initialization, which are often OK but can sometimes make it harder to access the firmware setup utility or boot from external disks.) Disabling the firmware feature will not disable the Windows feature.

Quite honestly, I have a low opinion of GRUB 2 because of its OS prober and other problems. This is one of the reasons I forked rEFIt into rEFInd, which does a much better job of locating and running EFI boot programs than does GRUB. OTOH, setting up rEFInd with Secure Boot active can require some extra hoop-jumping. The rEFInd Secure Boot documentation goes into this in detail. With any luck, though, if you just install the rEFInd RPM, it will be mostly working -- you'll just need to add the rEFInd certificate file to your NVRAM when you reboot. OTOH, since you've gotten GRUB more-or-less working, leaving it in place may be an easier way to go for now. I mention rEFInd as an option in case you have further problems or if you simply dislike GRUB.

[WRNER]

Hi, I also have "error: file efi/microsoft/boot/bootmgfw.efi not found"
after FC20 dual-boot install on Windows 8.1 laptop, Lenovo G510

I followed procedure on http://superuser.com/questions/62033...18-to-fedora19
(used by Sunkins above with success)

but when I try to boot in windows I get :

error: failure reading sector 0x0 from 'cd0'
error no such device: **0838-6C01**
/EndEntire
file path: /ACP|(a0341, 0)/PCI(2,1f)/UnknownMessaging(1:.....)/File(\EFI\Microsoft\Boot)/File(bootmgfw.efi)/EndEntire


This is what I did as I followed steps in above link

> gdisk -l /dev/sda

Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 2E6FD0C1-FDB5-43E7-8B48-1F3EAD4131EF
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2043245 sectors (997.7 MiB)

Number Start (sector) End (sector) Size Code Name
1 2048 2050047 1000.0 MiB 2700 Basic data partition
2 2050048 2582527 260.0 MiB EF00 EFI system partition (windows)
3 2582528 4630527 1000.0 MiB FFFF Basic data partition
4 4630528 4892671 128.0 MiB 0C01 Microsoft reserved part
5 4892672 1631182847 775.5 GiB 0700 Basic data partition
6 1631182848 1632206847 500.0 MiB EF00 EFI System Partition (/boot/efi)
7 1876942848 1929371647 25.0 GiB 0700 Basic data partition
8 1929371648 1953523711 11.5 GiB 2700 Basic data partition
9 1632206848 1633230847 500.0 MiB 0700
10 1633230848 1874903039 115.2 GiB 8E00


2. UUID of sda2:

> grub2-probe -t fs_uuid -d /dev/sda2
0838-6C01

(used the windows one)

3. edited the 40_custom file: add

menuentry "Windows 8.1 UEFI" {
insmod part_gpt
insmod fat
insmod search_fs_uuid
insmod chain
search --fs-uuid --no-floppy --set=root **0838-6C01**
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}


4.

> grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

5.

mounted windows partition and copied all files from \Windows8_OS\Windows\Boot\EFI
to the /boot/efi/EFI/Microsoft/Boot folder at the sda6
(I created dir Microsoft/Boot)

6. reboot