Boot entry missing

Kaktussoft · Aug 28, 2012

In following: "Grub location"

=>place Grub in "sda4"

To Reinstall Grub

You need to have Ubuntu Live CD or Live USB. Normal session can be used to repair the grub. Boot using your Ubuntu Live CD or Live USB, while booting choose Try Ubuntu.
Once booted then open a terminal, and run the following command one by one to install the boot repair.
To add boot-repair to the repository
$ sudo add-apt-repository ppa:yannubuntu/boot-repairTo Update your repository
$ sudo apt-get updateTo install boot-repair
$ sudo apt-get install -y boot-repairOnce Installation complete run boot-repair on terminal by typing the following command or select it by System->Aministration->Boot Repair.
$ boot-repairNOTE: Update the Boot Repair if its newer version is available.
It will scan the System for few seconds and will show you the options Recommended repair and Create a BootInfo summary. By clicking the Recommended Repair it will start repair the grub. Check the screen shots below.

Once done click ok and restart your system, your grub should work now. If not run the boot-repair again using live cd / usb. Then follow the steps below.
Select the Advanced options, In Main options tab check whether the following options are selected or not. If not select it, the options are Reinstall Grub and unhide boot menu for 10 seconds. Check the screen shot below

Then select the GRUB locations tab and check the following options are selected or not. The options are OS to boot by default and place grub into, In “OS to boot by default” option choose the OS which you want to be default on boot. Then select the drive where you need to reinstall the grub in “place grub into” option and click apply. Check the screen shots below

Kaktussoft · Aug 28, 2012

Kaktussoft said:
In elevated command prompt:

Code:

diskpart sel vol d: inactive exit

D: is not active anymore in disk management now? Try to boot in win7 and ubuntu. Works?

D: already marked inactive?
Do you have a "win7 system repair disk", "win7 install dvd" or any live CD that can mark partitions active/inactive?

qwert2k8 · Aug 28, 2012

conoflex said:
I just went to msconfig to check that all my cores were enabled and there is NO boot entry there so I can't access anything on the boot tab (See attachment)
What can I do about this please.

Andy

I appreciate your help and time, but I must now ask if rebuilding my grub is going to help with the original problem, since I am able to select windows and ubuntu from the grub menu without any problems, I do suspect my grub to interfere with the proper functioning of msconfig in windows, but only because I read it does that in several forums, but rebuilding it is something I would rather avoid unless it can be confirmed as the reason for msconfig not to function properly or task manager not reporting all the cores in my processor

once again thank you very much for all your help

Kaktussoft · Aug 28, 2012

Alright no rebuilding yet.
In win7 elevated command prompt:

Code:

bcdedit/enum  all
bcdedit/store c:\boot\bcd /enum all
attrib c:\boot\bcd

Which command fails?

qwert2k8 · Aug 28, 2012

Code:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Administrator>bcdedit/enum  all
The boot configuration data store could not be opened.
The system cannot find the file specified.

C:\Users\Administrator>bcdedit/store c:\boot\bcd /enum all

Windows Boot Manager
--------------------
identifier              {bootmgr}
device                  partition=C:
description             Windows Boot Manager
locale                  en-US
inherit                 {globalsettings}
default                 {default}
resumeobject            {8e7bd76a-afff-11df-bcd3-8603b7214ff4}
displayorder            {default}
toolsdisplayorder       {memdiag}
timeout                 30

Windows Boot Loader
-------------------
identifier              {default}
device                  partition=C:
path                    \Windows\system32\winload.exe
description             Windows 7
locale                  en-US
inherit                 {bootloadersettings}
recoverysequence        {8e7bd76e-afff-11df-bcd3-8603b7214ff4}
recoveryenabled         Yes
osdevice                partition=C:
systemroot              \Windows
resumeobject            {8e7bd76a-afff-11df-bcd3-8603b7214ff4}
nx                      OptIn
pae                     ForceEnable
numproc                 2
usefirmwarepcisettings  No

Windows Boot Loader
-------------------
identifier              {8e7bd76e-afff-11df-bcd3-8603b7214ff4}
device                  ramdisk=[C:]\Recovery\8e7bd76e-afff-11df-bcd3-8603b7214f
f4\Winre.wim,{8e7bd76f-afff-11df-bcd3-8603b7214ff4}
path                    \windows\system32\winload.exe
description             Windows Recovery Environment
inherit                 {bootloadersettings}
osdevice                ramdisk=[C:]\Recovery\8e7bd76e-afff-11df-bcd3-8603b7214f
f4\Winre.wim,{8e7bd76f-afff-11df-bcd3-8603b7214ff4}
systemroot              \windows
nx                      OptIn
winpe                   Yes

Resume from Hibernate
---------------------
identifier              {8e7bd76a-afff-11df-bcd3-8603b7214ff4}
device                  partition=C:
path                    \Windows\system32\winresume.exe
description             Windows Resume Application
locale                  en-US
inherit                 {resumeloadersettings}
filedevice              partition=C:
filepath                \hiberfil.sys
debugoptionenabled      No

Windows Memory Tester
---------------------
identifier              {memdiag}
device                  partition=C:
path                    \boot\memtest.exe
description             Windows Memory Diagnostic
locale                  en-US
inherit                 {globalsettings}
badmemoryaccess         Yes

EMS Settings
------------
identifier              {emssettings}
bootems                 Yes

Debugger Settings
-----------------
identifier              {dbgsettings}
debugtype               Serial
debugport               1
baudrate                115200

RAM Defects
-----------
identifier              {badmemory}

Global Settings
---------------
identifier              {globalsettings}
inherit                 {dbgsettings}
                        {emssettings}
                        {badmemory}

Boot Loader Settings
--------------------
identifier              {bootloadersettings}
inherit                 {globalsettings}
                        {hypervisorsettings}

Hypervisor Settings
-------------------
identifier              {hypervisorsettings}
hypervisordebugtype     Serial
hypervisordebugport     1
hypervisorbaudrate      115200

Resume Loader Settings
----------------------
identifier              {resumeloadersettings}
inherit                 {globalsettings}

Device options
--------------
identifier              {8e7bd76f-afff-11df-bcd3-8603b7214ff4}
description             Ramdisk Options
ramdisksdidevice        partition=C:
ramdisksdipath          \Recovery\8e7bd76e-afff-11df-bcd3-8603b7214ff4\boot.sdi

C:\Users\Administrator>attrib c:\boot\bcd
A  SH        C:\boot\BCD

C:\Users\Administrator>

Kaktussoft · Aug 28, 2012

qwert2k8 said:

Code:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
 
C:\Users\Administrator>bcdedit/enum  all
The boot configuration data store could not be opened.
The system cannot find the file specified.
 
C:\Users\Administrator>bcdedit/store c:\boot\bcd /enum all
 
Windows Boot Manager
--------------------
identifier              {bootmgr}
device                  partition=C:
description             Windows Boot Manager
locale                  en-US
inherit                 {globalsettings}
default                 {default}
resumeobject            {8e7bd76a-afff-11df-bcd3-8603b7214ff4}
displayorder            {default}
toolsdisplayorder       {memdiag}
timeout                 30
 
Windows Boot Loader
-------------------
identifier              {default}
device                  partition=C:
path                    \Windows\system32\winload.exe
description             Windows 7
locale                  en-US
inherit                 {bootloadersettings}
recoverysequence        {8e7bd76e-afff-11df-bcd3-8603b7214ff4}
recoveryenabled         Yes
osdevice                partition=C:
systemroot              \Windows
resumeobject            {8e7bd76a-afff-11df-bcd3-8603b7214ff4}
nx                      OptIn
pae                     ForceEnable
numproc                 2
usefirmwarepcisettings  No
 
Windows Boot Loader
-------------------
identifier              {8e7bd76e-afff-11df-bcd3-8603b7214ff4}
device                  ramdisk=[C:]\Recovery\8e7bd76e-afff-11df-bcd3-8603b7214f
f4\Winre.wim,{8e7bd76f-afff-11df-bcd3-8603b7214ff4}
path                    \windows\system32\winload.exe
description             Windows Recovery Environment
inherit                 {bootloadersettings}
osdevice                ramdisk=[C:]\Recovery\8e7bd76e-afff-11df-bcd3-8603b7214f
f4\Winre.wim,{8e7bd76f-afff-11df-bcd3-8603b7214ff4}
systemroot              \windows
nx                      OptIn
winpe                   Yes
 
Resume from Hibernate
---------------------
identifier              {8e7bd76a-afff-11df-bcd3-8603b7214ff4}
device                  partition=C:
path                    \Windows\system32\winresume.exe
description             Windows Resume Application
locale                  en-US
inherit                 {resumeloadersettings}
filedevice              partition=C:
filepath                \hiberfil.sys
debugoptionenabled      No
 
Windows Memory Tester
---------------------
identifier              {memdiag}
device                  partition=C:
path                    \boot\memtest.exe
description             Windows Memory Diagnostic
locale                  en-US
inherit                 {globalsettings}
badmemoryaccess         Yes
 
EMS Settings
------------
identifier              {emssettings}
bootems                 Yes
 
Debugger Settings
-----------------
identifier              {dbgsettings}
debugtype               Serial
debugport               1
baudrate                115200
 
RAM Defects
-----------
identifier              {badmemory}
 
Global Settings
---------------
identifier              {globalsettings}
inherit                 {dbgsettings}
                        {emssettings}
                        {badmemory}
 
Boot Loader Settings
--------------------
identifier              {bootloadersettings}
inherit                 {globalsettings}
                        {hypervisorsettings}
 
Hypervisor Settings
-------------------
identifier              {hypervisorsettings}
hypervisordebugtype     Serial
hypervisordebugport     1
hypervisorbaudrate      115200
 
Resume Loader Settings
----------------------
identifier              {resumeloadersettings}
inherit                 {globalsettings}
 
Device options
--------------
identifier              {8e7bd76f-afff-11df-bcd3-8603b7214ff4}
description             Ramdisk Options
ramdisksdidevice        partition=C:
ramdisksdipath          \Recovery\8e7bd76e-afff-11df-bcd3-8603b7214ff4\boot.sdi
 
C:\Users\Administrator>attrib c:\boot\bcd
A  SH        C:\boot\BCD
 
C:\Users\Administrator>

bcd store is fine!! But win7 doesn't know it's using it. Is win7 bootmgr called from grub???

Post /boot/grub/menu.lst from within linux

Kaktussoft · Aug 28, 2012

post /boot/grub/grub.cfg (I think that's the file I want)

qwert2k8 · Aug 28, 2012

Can t find menu.lst in that directory.
maybe grub.cfg?
Also, search is not finding menu.lst anywhere in the whole ubuntu partition

qwert2k8 · Aug 28, 2012

Code:

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

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
set default="5"
if [ "${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 recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}

function load_video {
  insmod vbe
  insmod vga
  insmod video_bochs
  insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos4)'
search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  insmod part_msdos
  insmod ext2
  set root='(hd0,msdos4)'
  search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
  set locale_dir=($root)/boot/grub/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
    set gfxpayload="${1}"
    if [ "${1}" = "keep" ]; then
        set vt_handoff=vt.handoff=7
    else
        set vt_handoff=
    fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
menuentry 'Ubuntu, with Linux 3.2.0-29-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-3.2.0-29-generic-pae root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.2.0-29-generic-pae
}
menuentry 'Ubuntu, with Linux 3.2.0-29-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 3.2.0-29-generic-pae ...'
    linux    /boot/vmlinuz-3.2.0-29-generic-pae root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.2.0-29-generic-pae
}
submenu "Previous Linux versions" {
menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.2.0-23-generic-pae
}
menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 3.2.0-23-generic-pae ...'
    linux    /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.2.0-23-generic-pae
}
menuentry 'Ubuntu, with Linux 3.0.0-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-3.0.0-24-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.0.0-24-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 3.0.0-24-generic ...'
    linux    /boot/vmlinuz-3.0.0-24-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.0.0-24-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-16-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-3.0.0-16-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.0.0-16-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-16-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 3.0.0-16-generic ...'
    linux    /boot/vmlinuz-3.0.0-16-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.0.0-16-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-15-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-3.0.0-15-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.0.0-15-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-15-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 3.0.0-15-generic ...'
    linux    /boot/vmlinuz-3.0.0-15-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.0.0-15-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-14-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-3.0.0-14-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.0.0-14-generic
}
menuentry 'Ubuntu, with Linux 3.0.0-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 3.0.0-14-generic ...'
    linux    /boot/vmlinuz-3.0.0-14-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.0.0-14-generic
}
menuentry 'Ubuntu, with Linux 2.6.38-13-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux    /boot/vmlinuz-2.6.38-13-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-2.6.38-13-generic
}
menuentry 'Ubuntu, with Linux 2.6.38-13-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    echo    'Loading Linux 2.6.38-13-generic ...'
    linux    /boot/vmlinuz-2.6.38-13-generic root=UUID=1818a91e-5240-4567-8e1d-8689a1e78041 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.38-13-generic
}
}
### 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_memtest86+ ###
menuentry "Memory test (memtest86+)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos4)'
    search --no-floppy --fs-uuid --set=root 1818a91e-5240-4567-8e1d-8689a1e78041
    linux16    /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sdb1)" --class windows --class os {
    insmod part_msdos
    insmod ntfs
    set root='(hd1,msdos1)'
    search --no-floppy --fs-uuid --set=root A22881E42881B835
    chainloader +1
}
### 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  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

Kaktussoft · Aug 28, 2012

menuentry "Windows 7 (loader) (on /dev/sdb1)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root A22881E42881B835
chainloader +1
======================
Looks fine as well. Don't why but seen it before... it's because you boot to grub! That's why msconfig and bcdedit aren't working.

Bootsequence is now: sdb (MBR)->sda4 (grub bootmenu)->(sdb1 [win7] or sda4 [linux])

Only sda connected to system... boot fails
Only sdb connected to system... boot fails

Not a real problem as long as both are connected.

What do you want to change using msconfig btw? You can't do "bootmenu" stuff now (boot tab).
But you can do it using:
bcdedit/store c:\boot\bcd .....

qwert2k8 · Aug 28, 2012

since my task-manager reports a dual core processor when I have a quad core (EVEREST reports 8 but that is threading I believe), I am attempting to enable the remaining cores.
I have already enabled all cores in BIOS as well as multi-threading, really the only place I have left to check is the boot tab in msconfig's advanced options

Also, when rendering 3DMax only reports two cores instead of four

When in Ubuntu, System monitor also reports up to CPU8 (4 pairs)

Kaktussoft · Aug 28, 2012

Your bcdedit output lists:
numproc 2!!

Code:

bcdedit/store c:\boot\bcd /deletevalue {default} numproc

Command succesfully? If so do it again.. now it fails because "element not found"?
Now it uses all your cores!! Reboot and test

Kaktussoft · Aug 28, 2012

qwert2k8 said:
since my task-manager reports a dual core processor when I have a quad core (EVEREST reports 8 but that is threading I believe), I am attempting to enable the remaining cores.
I have already enabled all cores in BIOS as well as multi-threading, really the only place I have left to check is the boot tab in msconfig's advanced options

Also, when rendering 3DMax only reports two cores instead of four

When in Ubuntu, System monitor also reports up to CPU8 (4 pairs)

You have 1 cpu with 4 cores. Each core has hyperthreading.

qwert2k8 · Aug 28, 2012

Worked perfectly!!!
Thank you very much,

Kaktussoft · Aug 28, 2012

qwert2k8 said:
Worked perfectly!!!
Thank you very much,

Why not asked that in first post that it was the REAL question. Solved

qwert2k8 · Aug 28, 2012

I am asking myself the same question now!!
It just seemed like I was on the right track, and when I read the original question on this thread, it seemed like it was the exact same problem I had.

Thanks again

fpopic · Feb 20, 2015

Hi,
my friend had used Windows 7 and Ubuntu as dualboot on her hdd, now she bought ssd and installed Windows 8.1 on it, to experience all cool thing that ssd brings.

We didn't know how to solve boot entries on two disks so she always had to rapidly press bootmenu hotkey on her keyboard to choose to boot from hdd or ssd. Now Windows 8.1 shows some wrong bcd entry message and linux has gone from boot choices.

What is the best method to recover all three boot choices and if possible to avoid hitting bootkek at starting PC.

We don't care which boot loader will be used (grub2 or Windows boot...), just want to be able to use one Boot Menu and be able to boot into all three OS.

Will that solve the problem ?

Simple solution to your problem will be using Boot-Repair.Run Ubuntu live cd.Open terminal and type:
sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update Press Enter and type:
sudo apt-get install -y boot-repair && (boot-repair &) And press Enter. Now type boot-repair and press Enter once again. Use *Recommended repair. It will do the job.

Or Should We with EasyBCD try to find lost win81 and ubuntu entries from Windows 7 that is still bootable.

Kaktussoft · Feb 20, 2015

"Windows 8.1 shows some wrong bcd entry message " please explain what message exactly is displayed.
win8 disk is the disk with the bootmenu and bootmgr? At least... you want it that way? if so.... what drive letter has the win7 partition when booted to win8?

fpopic · Feb 20, 2015

Win 7 was E: drive when I boot into Win 8.1

Is there any way I could provide you log from easybcd so you could see more about situation?
We tried with Win 8.1 installation disk but the repair didn't started there was an error (I don't remember which) and then we tried with command prompt to fix and rebuild boot but after that we lost windows 8.1 boot choice and the only one left was Win 7.

Kaktussoft · Feb 20, 2015

So you are now booted to win7? Post screenshot of disk management and tell me the drive letter of win8.
Post outlog of this as well (for elevated comman prompt):

Code:

bcdedit/enum  all

Boot entry missing

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