Debian Installation :: 8.3 And Windows 10 Dual Boot GRUB EFI Removed
Feb 3, 2016
I've been using Debian for a few years but always on dedicated boxes and/or VMs.
Finally decided to dual boot Debian and Windows on my main Desktop PC.
Installed as I normally would using, however this time using a seperate drive (one for the existing Windows 10 install and the other for Debian), Debian install detects that windows has an EFI partition and sticks an entry in there, which is fair enough, and everything working fine. Then I spent some time configuring all my software and set it all up just the way I like it. I've rebooted Debian a few times to check it's working correctly and it is.
The issue arrives when I reboot and load into Windows 10. It boots fine.
However after a further reboot GRUB no longer loads... and the machine just boots directly into Windows 10.
After doing some further digging into my EFI partition (and reinstalling various times) it would appear that after a reboot Windows 10 deletes the entry GRUB creates in my EFI partition after EVERY reboot.
Done some googling and most people advise turning off 'fast boot' in Windows as it locks certain partitions to facilitate the machine going into hibernation, only to find that it's always been turned off on my machine (I recall due to a driver issue with my graphics card this had to be turned off when I installed Windows 10).
I've found this article on the Ubuntu forums : [URL] .... however I've tried their steps and windows is still doing a hostile takeover of my EFI partion after a reboot!
Any way to stop Windows 10 from interfering with my EFI files after a reboot? (without doing the obvious thing and kill Windows off).
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Sep 1, 2011
I'm running Ubuntu 11.04 and Windows 7 on a Dell Inspiron. On boot I get the GRUB menu listing Ubuntu (+ old versions) and Windows 7. However, if I boot Windows 7 all is fine until I reboot. On this next boot GRUB is gone and Windows boots. Ubuntu is still there, I can get into using my live-cd and 'repair' GRUB. After that, on booting GRUB is back and fine (including Windows 7). Does any one have an idea how to fix the booting/GRUB thing more constructive?
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May 7, 2010
I had 9.10 installed and I did an upgrade to 10.04. However I cannot see anymore my Windows Vista partition with grub.. I have a Toshiba laptop Satellite p305.This is my boot script output:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in [code].......
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Jul 3, 2010
I used Windows to reformat my Ubuntu partition and now I can't boot anything. What's the best way to recover my netbook? I'm only able to use a 256 MB flash drive.
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Mar 23, 2010
I had a dual boot machine with fedora 12 and windows vista and I could use grub boot-loader to switch between two. Few days ago windows got corrupt and I have to reinstall it. I put windows 7 now and as usual it erased grub. So to reinstall I put the fedora 12 installation CD on and followed some usual setup steps. When I got the command line I issued the command "grub-install /dev/sda" (sda not hda because It showed bunch of sda, sda1..) but surprisingly it said grub command not found. I remember doing it before while it worked fine.
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Nov 8, 2010
I'm trying to dual boot Win7 and Ubuntu WITHOUT using Grub. This is to support Bitlocker encryption.
I followed this guide, and now when I select Ubuntu I get a Grub> prompt and no ubuntu.
I feel like I'm halfway there, I just need to get Grub to load correctly or something.
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Jan 10, 2010
I just set up a dual boot on a system with fedora 12 and XP. XP in on one hard drive (sda) and Fedora on a second hard drive (sdb).
I installed grub on the Fedora disk so as to not touch the windows disk at all.
Prior to installation, in the bios, I set the Fedora disk (sdb) first in the boot sequence, and then XP (sda) so that the grub loader would boot up by default. (If I set the windows drive first then the system bypasses grub and loads straight into windows.)
My system can now boot up into Fedora fine, but if I select windows from the grub loader menu I just get a blinking cursor - windows will not boot.What do I have to do so that grub can boot into XP?
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Jul 8, 2011
11.04 installed on free space I had setup but it didn't install Grub2 for a dual boot (with Windows 7 Pro). It may have gotten confused with my disk setup. Drives and their groupings (Windows lingo):
- Windows 7 Pro on C-drive (appears to be sdb2), it is a SSD
- The free space was setup on this SSD and Ubuntu is located on sdb5 (Linux) and sdb6 (swap space).
- Applications stored on D-drive (RAID0 with 2 small SSDs using RST (Intel Rapid Storage Technology).
- data on a RAID card using HDs in RAID0.
Small wonder it got confused, if that is the problem. I have a LiveCD I can use to boot, is that the best? What are the commands to install. Is there a better way?
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Feb 19, 2011
I'm running 10.10 32 bit and would like to reformat to 10.10 64 bit. However, I am dual booting with windows 7 under grub. I've had some crap experience (my fault) with grub before and would like to make sure I have a plan. I've downloaded the 10.10 64 bit. Can I simply boot and install 10.10 64 bit without concern of messing up grub? Horror story: Installed ubuntu once before with dual boot and somehow grub couldn't find windows
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Sep 2, 2010
I have recently purchased a new laptop, which came with Windows 7 pre-installed. I immediately installed Ubuntu alongside it with a dual boot. At first it worked fine, but when I restarted after the first time I used Windows, I ended up with an 'Operating system not found' error. I was able to reinstall the Grub bootloader using an Ubuntu Live CD, which appeared to fix the problem, but the next time I loaded Windows 7 and rebooted, the problem reappeared I think the problem is that Windows 7, for whatever reason, is somehow removing or disabling Grub.
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Dec 23, 2014
My Toshiba Satellite C870-198 has Debian 7.7 installed in UEFI mode alongside Windows 8.1. The GRUB menu no longer displays, but the machine boots straight into Windows.
I can boot into Debian or Windows from rEFInd installed on a USB stick. The rEFInd menu has the following entries:
The Debian entry actually launches the GRUB menu which was installed with Debian.
Code: Select allBoot Microsoft EFI boot (Boot Repair backup) from Basic data partition.
Boot supposed Microsoft EFI boot (probably GRUB) from Basic data partition.
Boot EFIubuntugrubx64.efi from Basic data partition.
Boot EFIdebiangrubx64.efi from Basic data partition.
Boot bootootx64.efi from Basic data partition.
Boot vmlinuz-3.2.0-4-amd64 from boot.
In an attempt to fix GRUB I executed the commands in the 'Reinstalling grub-efi on your hard drive' section of: [URL] ....
Code: Select allmount /dev/sda1 /boot/efi
... surprisingly returned:
Code: Select all$LogFile version 2.0 is not supported. (This driver supports version 1.1 only.)
$LogFile version 2.0 is not supported. (This driver supports version 1.1 only.)
Did not find any restart pages in $LogFile and it was not empty.
The file system wasn't safely closed on Windows. Fixing.
Code: Select all[ -d /sys/firmware/efi ] && echo "EFI boot on HDD" || echo "Legacy boot on HDD"
... returned "EFI boot on HDD".
[Code] ....
... Where is Debian?
FULL HISTORY ....
=============================
The laptop came with Windows 8 preinstalled. I switched off Secure Boot and installed Ubuntu for UEFI dual boot. I recall having to use Boot Repair to get the GRUB boot manager working properly for both systems.
Recently I decided to replace Ubuntu with Debian 7.7 and first cloned the entire hard drive to a USB drive (The Clone Drive). This drive successfully boots into Ubuntu in UEFI mode.
Following this I took the opportunity to update Windows to 8.1, which broke GRUB as expected, so that the machine would only boot straight into Windows.
I installed Debian from a live USB stick in the mistaken belief that it would be bootable in UEFI mode. It did boot OK in legacy mode.
I then burned the full Debian 'DVD' image to a USB stick, booted it in UEFI mode and reinstalled Debian. In UEFI mode GRUB allowed me to boot into both Debian and Windows.
At this point I tested The Clone Drive. It was still able to boot into Ubuntu as previously, but after powering down, unplugging The Clone Drive and rebooting, the GRUB menu failed to appear and the machine booted straight into Windows. This is its current state.
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Feb 13, 2015
I'm inexperienced in Debian. I have a dual-boot machine (64-bit, Debian 7.3, Windows 7, legacy boot) and encouter a problem at boot ever since I completed the installation of Debian 7.3 alongside the exising Windows 7. This machine has six hard drives: two are intended for ntfs storage of general data (raided together by RAID1); two more are intended for ext4 storage of general data (also raided together by RAID1); the fifth contains the Windows OS files and the sixth contains the Debian OS files. The problem is that I arrive to the grub_rescue each time at boot, seeing the message:
GRUB loading.
Welcome to GRUB!
error: no such device: e081517b-3399-4067-9294-8f0686f753ca.
Entering rescue mode...
grub_rescue>
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Mar 24, 2015
I've set up a dual boot system with Debian and Windows 8, both installed on their own drive, with their own boot partition. I installed eveything in UEFI-Mode with fast- and secure boot turned off. Both installations are working, as I can access them by changing the boot priority in the Bios. What I cannot achieve is to let grub boot my windows installation.
This is the output of parted -l:
Code: Select allModel: ATA Samsung SSD 840 (scsi)
Disk /dev/sda: 128GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kB 512MB 511MB fat32 boot
2 512MB 111GB 111GB ext4
3 111GB 128GB 17,0GB linux-swap(v1)
[Code] ....
As you can see, my linux install is on sda, my windows install on sdc (sdb beeing a data disk). This is the entry I made in the 40_custom file in etc/grub.d:
Code: Select allmenuentry "Windows 8.1" {
insmod part_gpt
insmod chain
set root='(hd2,gpt2)'
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
boot
}
I think this should be fine, but if I choose the windows entry wehen grub is booting, it says: error: no such partition. It's my first debian installation, and I am stuck here. Not too much of Linux experience in general.
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Oct 16, 2015
My laptop setup is:
sda1: W7
sda2: FAT16
sda3: /boot
sda4: encrypted LVM with debian (everything besides /boot)
now I've re-installed W7 so grub was overwritten. I've tried the procedure which worked for me previously:booting with the netinst usb in rescue mode, choosing a root partition to mount, using grub-install to reinstall the grub:
Code: Select allmount /dev/sda3 /boot
grub-install /dev/sda
Now I'm on Jessie (stable), and this time this fails, and I am able to mount only sda3.grub-install doesn't exit so I'm assuming it has been replaced by `grub-installer'. also '/boot' doesnt exist so I created it manually.
Code: Select allmount /dev/sda3 /boot
grub-installer /dev/sda
The latter fails with
Code: Select all/dev/sda/proc not a directory
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Jun 7, 2010
I cannot count how many times I have re-installed squeeze, and do all kinds of fixes to grub, but no joy. Every time, there is this ntoskrnl.exe error, and to re-install it. I thought my WIN XP may be corrupted, so I reinstalled it, and updated it with sp3 and all updates. Then I re-installed squeeze (reformatting all partitions). At the end, the installer ask if I want to install grub to mbr. I replied yes. After reboot, only the 2.6.32.3-amd64 and the recovery kernels show up on the grub screen, no winxp.OK, I booted into squeeze kernel and looked at the /boot/grub/grub.cfg file, and there winxp is not included in /etc/grub.d/30_os-prober section. In terminal, I typed
#os-propber and it found winxp in /dev/sda1
then I typed
#update-grub
and now /etc/grub.d/30_os-prober now show winxp.I rebooted, and winxp shows on the grub screen, and I chose winxp.It came back with "ntoskrnl.exe ...error... re-install ntoskrnl..."Here are the details:
fdisk -l
root@SHUM-AMD64:/home/shum# fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
[code]....
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Jan 18, 2011
I had Ubuntu installed, i installed Debian and there was no dual boot. So i formated all the hard disk to install only Debian. It installed but at boot i get error: no such device and the grub rescue> prompt. i googled for a solution and nothing worked:
- i tryed reinstalling grub, not worked
- i did the windows cd fixmbr trick, not worked
- reinstalled debian with fixmbr the first step and nothing
- tryed deleting with dd the mbr, not worked
- reinstalled grub from debian rescue, not worked
what should i do? i can't access my computer? please tell me how should i fix it? the google guys will kill me because i put their servers on fire
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Feb 18, 2010
Debian if my first OS and i want to dual boot Fedora12.Ok i installed Fedora12 and choose not to install the bootloader(gonna use the one Debian installed)What i'm tring to do in Debain is edit my /boot/grub/menu.lst
Here is what i have
Code:
title Debian GNU/Linux, kernel 2.6.26-1-686
root (hd0,0)
kernel /boot/vmlinuz-2.6.26-1-686 root=/dev/hda1 ro quiet
initrd /boot/initrd.img-2.6.26-1-686
code....
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Dec 15, 2015
I'll start off with stating my problem and summarize how I got to it.
I installed Windows 10 on an SSD. I installed Debian 8.2 after it. The SSD was/is a GPT disk. I installed both installations from a UEFI booted device (DVD for Windows, and USB drive with Live CD for Debian).
I tested it after each installation making sure I could boot via UEFI into Windows, then Debian, then Windows, to make sure nothing broke.
I rebooted the machine. Suddenly, no more UEFI. Nothing. I didn't change any BIOS/UEFI setup menu settings. Not even my USB drive with Live CD will boot through UEFI anymore. Even when nothing else is plugged into the system.
My situation is actually a bit more complicated than that, but I think that will suffice for now. I can still boot into the Live CD on the USB drive, just in Legacy mode only. I mounted the EFI partition on /mnt/boot after I mounted the file system for Debian on /mnt. It is identical, as far as I can tell, to as it was before when it was working.
My motherboard has CSM and Secure Boot, both have been set up how they need to be to boot UEFI into Debian. Tinkering with them further after things broke did not fix it. I tried all variations of options/settings.
The GRUB Reinstall guide says to be in EFI mode before starting it, so I can't do that.
My motherboard is an ASUS X99 Deluxe, and I've heard ASUS has special "features" (read: bugs) that come with their boards. Searching hasn't brought up any other people with this issue. I believe the firmware is updated to it's most current one.
I've tried dd-ing my backup of my old system, from before trying to migrate to a Dual Boot system, to the SSD (after backing up the dual boot setup with dd -> <name>.img via the Live CD USB). However, that won't boot either as it is a UEFI install as well.
The layout of my EFI partition is as such:
/boot/EFI/Boot/bootx64.efi
/boot/EFI/Microsoft/<Microsoft-naming>.efi
/boot/EFI/debian/grubx64.efi
I've heard that the standards on how that's supposed to be set up isn't a standard. However, since it worked booting into the OS' the first time, I don't see how that could be the issue (a bad hierarchy layout leading to the UEFI not being able to see the OS installs).
I've seen that I can boot to an EFI shell (called Shell.efi, apparently) via an option in my UEFI BIOS setup menu on my motherboard. Is that an option here to somehow bypass this strange issue?
All I can think to try is burn it all and start over. But not knowing what caused it means I could just make it happen again. Plus, I can't boot into UEFI install media, so I can't install UEFI boot OS'. :/
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Dec 13, 2010
I've recently bought a new computer and installed Windows 7 on it, but left 100GB of space on a separate partition so I could put Debian next to it in dual boot. I have the new Intel i7 950 processor and I run Windows 7 Proffesional 64 bit, so I assumed I had to pick the ia64 debian image. However the CD I burned from the ia64 image didn't boot. (a black screen started and an underscore kept flashing, but nothing else happened)[URL]
I've managed to install i386 Debian on a older intel pentium 4 computer before and that worked fine. I believe I used another application to burn the CD then. This time I've burned the CD with the default Windows CD burn application. I can try burn more CD's but I don't have much left so I want to make sure this is the problem before attempting again. (the burned files on the ia64 CD look exactly the same as the files on the i386 CD, when browsing through the cd files in windows) "If your PC has a 64-bit AMD or Intel processor, you will most likely need the "amd64" images (though "i386" is also fine), the "ia64" images will not work."This seems a bit strange, they recommend me to use the amd64 image if you have a "64-bit AMD or intel processor". I dunno if this is a typo, but it seems weird to me that the AMD-64 Debian version would also work on my Intel machine
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Aug 30, 2014
I recently installed Debian 7 on a dual boot with Windows Vista. Thus, when I boot the computer, I am prompted by a GRUB screen to select Windows Vista loader, Debian, and Debian (recovery mode). I would like to upgrade Windows Vista to Windows 7. Will this cause an issue with GRUB? Will a Windows 7 loader be added to the list or will a Windows 7 loader replace the Windows Vista loader? Will there have to be a setting change within Debian? Within Windows?
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Sep 4, 2015
I have a Dell laptop (inspiron 1150) which was dual booting Windows XP and Ubuntu 9.04. I have successfully installed Debian Jessie Standard over the Ubuntu. I pre-partitioned using gparted-live to make a separate single partition for the Debian install. Guided partitioning was then carried out by the installer producing separate /, /home, and swap partitions. After installation, the grub menu shows an entry for Debian and Windows XP. I can boot Debian, but not Windows XP. The symptoms are the same as reported in other forums: A terminal is displayed, vanishes and the system reboots defaulting to the Debian boot.
The grub.cfg file for the Jessie system has an other-os entry:
Code: Select allmenuentry "Microsoft Windows XP Home Edition (on /dev/sda2)" {
set root=(hostdisk//dev/sda, msdos2)
search --no-floppy --fs-uuid --set=root cc0ce0ab0ce091ae
drivemap -s (hd0) ${root}
chainloader +1
}
The original Windows entry for the Ubuntu install was:
Code: Select allmenuentry "Microsoft Windows XP Home Edition (on /dev/sda2)" {
insmod ntfs
set root=(hd0,2)
search --no-floppy --fs-uuid --set cc0ce0ab0ce091ae
drivemap -s (hd0) ${root}
chainloader +1
}
The partitions produced by partman look OK (during the pre-partitioning I did not touch sda1, sda2, or sda3):
Code: Select all~ # fdisk -l
Disk /dev/sda: 37.3 GiB, 40007761920 bytes, 78140160 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
[Code] .....
Partition table entries are not in disk order.
The os-prober found XP:
Code: Select all~ # os-prober
/dev/sda2:Microsoft Windows XP Home Edition:Windows:chain
So it seems that everything is in place, but there are perhaps important differences in the grub.cfg files. Are the two "set root" commands equivalent for example?
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Dec 28, 2015
I have Windows 10 and Deb 8 dual boot, and I need to re-install Windows but want to avoid (or at least plan for) losing Grub/Linux boot.
Last time I re-installed Windows after Linux I ended up having to re-install Linux again afterwards as well, because I couldn't recover it (seemingly due to complications from encryption). So this time I'm wanting to plan and avoid that.
CURRENT DISK PARTITIONS:
Code: Select allsda1 | 550M | EFI System
sda2 | 128M | Microsoft reserved
sda3 | 175.8G | Microsoft basic data
sda4 | 286M | Linux filesystem (Boot)
sda5 | 28.2G | Linux filesystem (Root)
sda6 | 91.3G | Linux filesystem (Home)
sda7 | 1.9G | Linux swap
[Code] ....
As there is a "Microsoft Reserved" partition and a separate Microsoft directory within the EFI partition, if I just go ahead and reinstall Windows will it install it's boot loader/image to one of it's own partitions? And NOT affect anything else like Grub and other Linux things?
Logic tells me yes, but there seems to be many issues on the internet about installing Windows after Linux.
My primary concern is whatever happens with Windows or anything to do with dual loading etc, is that Linux will still just boot, or I can get it working again without much hassle.
Why is there a reserved Microsoft partition AND a Microsoft directory in the EFI partition? Which one boots Windows?
Why is there a separate Linux Boot partition AND a Linux directory in the EFI partition? Which one boots Linux? Where is Grub invoked from, is one redundant, etc?
How these work. It is possible I've set them up wrong, or with redundant partitions, but both systems have been booting ok for months.
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Feb 1, 2011
I have used dual boot systems using various versions of windows and Debian for many years and have encountered no problems. However, I have a problem with installing Debian on a EeePC (ASUS PC1201) which uses Winows 7. I can not even get started because I can not understand the information that I have on my hard drive partitions. Windows 7 says that I have the following :
Local Disk(C:) 78.1 GB free of 99.9GB
Local Disk(D:) 49.8 GB free of 83.8.GB
NewVolume(G:) 948 KB of 0.99 GB
Local Disk(F:) 37.9 GB free of 38..0 GB
(Originally the ASUS only had two partitions C: and D: I used Gparted to genetate F: and G:)
gparted-live-0.7.1.5 says that I have the following :-
/dev/sda1 ntfs 992.5 KB
/devf/sda2 ntfs 100.00 GB with 66.09GB unused
/dev/sda3 ntfs 132.88GB with 129.88 GB unused
unallocated 1.00 GB
Debian Squeeze (the net install version) will not install. G was the result of trying to provide some swap space. How do I prepare the hard drive so that Squeeze it will install on F: ?
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Jul 29, 2011
how to install Debian after Windows is already installed. Could someone give me a brief guide to begin the process of installing Windows? When I installed Debian I already made a partition for windows (in the same hard disk), I hope I did it right.
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Aug 19, 2010
I installed Debian on my PC and then installed Ubuntu. This worked fine and I could dual boot between the two. The PATA disk was /dev/hda on debian and (I think) /dev/sda on Ubuntu. I copied the entire disk to a sata disk using dd from knoppix and put the PATA one to one side. Now the Ubuntu comes up fine but when I boot debian, it complains about references to /dev/hda1, which is present in grub - root=/dev/hda1. Debian now expects sda references rather than hda references. How do I persuade Ubuntu to write /dev/sda1 to the bootloader rather than /dev/hda1 using grub-mkconfig?
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Mar 11, 2010
I have an old Dell Dimension 4500 that, until recently, had 2 hard drives. One drive is running Xubuntu Koala and the other was running XP. I had set up Xubuntu to run LVM.
After needing XP again for a small project I tried reinstalling XP, got disk errors, took the drive out to just have Xubuntu, and now when I boot I get "Error loading operating system".
I have tried restoring GRUB from a Live CD with no help. Everyplace I look on the net talks about restoring GRUB after installing Windows on another drive. I'm trying to get GRUB working again after removing the XP drive.
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Jan 28, 2011
is it safe to install a dual boot windows 32bit and a linux 64bit on the same pc?
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Oct 24, 2010
I've had my laptop dual-boot with Ubuntu 10.03 and W7 for some time, and all has (mostly) been OK. Unfortunately, my windows installation was an upgrade from Vista, and always a bit of a pig's 4rse, so I deleted the partition and reinstalled it cleanly.
But now I no longer get a list of boot options, so I can't boot into Ubuntu.
Its partition is still there OK... I can get the dual-boot back...
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Sep 11, 2010
Is it possible to have the Windows bootloader point to Windows 7 and a Linux partition instead of using GRUB to point to Windows 7 and Linux?
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Sep 19, 2010
3 partitions (in order): Windows 7, CentOS and shared data partition.
I need to increase the size of the Windows 7 partition (c:windowswinsxs seems to be something not easily remedied).
GParted didn't work in moving things around (bad sector) so I wiped out its partition (# 2 out of 3) and I was able to increase the size of the Windows 7 partition (I can reinstall CentOS easily and not much work lost).
Except ... no more grub menu (unsurprising). This incantation does allow me to boot into Windows 7.
Is there any way of rebuilding the grub menu short of reinstalling CentOS (5.5)?
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