Grub add windows from another disk I keep xp from over writing grub by disabling "windows restore" option. Additionally: I'm able to I bought a new disk (/dev/sdb) and decided to install Xubuntu 13. 04. lst with notepad now edit I know I can always set the priority of Windows over Ubuntu in the Grub order, but I want my Windows to be untouched in my primary disk (SSD) and not Grub booting it for me. The first case is the faulty Windows Boot Manager that occurs due The first "menu entry" has a value of "0". /dev/sdf2 125 30402 243196503+ 83 Linux Partition 2 Jun 10, 2016 · MBR=Master Boot Record. After Windows was installed and working, then I installed Ubuntu on the other drive and installed GRUB only to the Ubuntu drive. I have never had an issue with the Windows bootloader trying to take over mainly because when I installed Windows, I did not have my drive containing Ubuntu in the system at the time. Ask Question Asked 7 years, 8 /sda3 310075392 1921404927 1611329536 768. Allow grub2win to I have a laptop with a working dual boot system to Windows NT4 on the first primary partition, (another primary partition,) and Lubuntu Linux on an extended partition using grub2 as the boot manager in the MBR. If Windows is installed on a third hard disk, change (hd1,0) to (hd2,0) Add the following to /boot/grub/menu. If all goes, well Windows will be seen in the GRUB menu on reboot. Jan 4, 2025 · You can try if this works without changes, but most likely you have to modify the value of boot-drive first to match your hardware configuration. Older comments: I needed to use a boot disk May 4, 2015 · I am desperate to add Windows 7 to grub. can't boot into windows, was removed from grub. I'm not sure how to add a menu entry which tells grub to boot from the This without bothering/counting menuentries in /boot/grub. Re-install Grub. lst under the "Windows" section: If you install a new version of Windows, the new bootloader might overwrite the GRUB bootloader, making it impossible to boot into Linux. With gpt and BIOS boot, you need a bios_grub partition. I can not figure out how to boot Windows from grub2. To add a Windows entry to GRUB, you will need to: 1. Since it isn't done during execution of the previous command, running sudo update-grub after the install will ensure GRUB 2's menu is up-to-date. Fedora add Windows to grub. The major thing is that you do not let windows format your whole disk and install it into another partition as your Ubuntu. I wasn't able to get the pretty screen like you see in the attached pic, so I Power-on the computer. There are two methods I have used in the past: 1) Install ntfs-3g (which should allow your installation to see the windows partition automatically) using your package manager. When I boot into the hard disk, I get put into grub rescue. Only the Ubuntu live manual GRUB works at this time. Boot into the Linux operating system. I have run 'grub-mkconfig -o /boot/grub/grub. Grub2. You do not want Sep 21, 2023 · After a while, I decided to install Mint 21 fresh from a usb stick bad choice! Windows won't boot anymore. GRUB_DISABLE_OS_PROBER=true change GRUB_DEFAULT=0 to GRUB_DEFAULT=windows-custom and change GRUB_TIMEOUT=10 to your Disk /dev/nvme0n1: 238. It should normally be generated with the command sudo update-grub. menuentry "Other Disk" { insmod part_msdos set root='(hd1)' drivemap -s hd0 hd1 chainloader (hd1)+1 } That program would give the user a set of boot choices. \C: --force" without quotes. cfg accordingly. somehow. It collects information from the /boot partition (or directory), from the /etc/default/grub file, and the customizable scripts in /etc/grub. I then made the Ubuntu drive the In this case, the problem was that the Bios decided that it would be a good idea, given the new SSD, to select the Windows bootloader instead of Grub, without telling me. ) When I c Currently, I have SSD and HDD on my laptop and Windows is installed on SSD, but the boot manager partition is on HDD. GRUB will only boot Windows and Linux if they are installed in the same Legacy/UEFI mode. I have done it with Windows 8. 0. efi which grub hands over to it once you select Windows. I have tried using GRUB Customizer but I just cannot get the command right. Dec 21, 2019 · Again, if Windows boots then the correct drive - Disk 1 - is being used, even though Windows is installed in a different drive, Disk 0. Then reconnect your Linux drive as primary and attach Windows as secondary. efi is an instruction entry in Window's BCD, which has to be present in the ESP, there's no way to Nov 20, 2018 · Add grub to windows boot manager. I have installed windows with linux on the same drive, just partitioned, and grub detects the windows install automatically New comments cannot be posted and votes cannot be cast. But I remembered I had a second (mostly unused) hard drive in my pc, so I installed windows onto that so that I can at least have access to all the files, applications, etc. After you change the partitions and adjust /etc/fstab you should run the update-grub - available on Debian/Ubuntu script or grub-mkconfig -o /boot/grub/grub. I googled online and what I found out is that I either have to install grub on my primary drive; or use a windows recovery disc to repair the MBR. If I want to be sure to be able to get back to the initial state, can I just create a new EFI partition on the second disk and set this disk as boot priority? Will then be windows 7 automatically found by GRUB? The command grub-mkconfig -o /boot/grub/grub. Let it find the Ubuntu install and boot it. So grub is very important. Path where PrimeOS is currently located: /dev/sdb1/PrimeOS This entry is used to prevent GRUB from adding the results of os-prober to the menu. I copied my entire installation from sda1 to sdb1. After updating Windows 11 to version 24H2 and after rebooting, GRUB (2. To update and add Windows to grub2: sudo update-grub Also, to always see the Grub2 menu, you can comment out the line. So then I'd like to choose between the win10 disk and the linux disk. This way, GRUB will only detect your Ubuntu installation, but you'll be able to boot from both Windows My issues started when I partitioned my Ubuntu 22. However, I am able to boot in windows 10 from the UEFI boot menu. I removed Ubuntu using a combination of OS First, disconnect any previous OS disk(s). adding entries to GRUB2 is a completely separate issue. If both the OS are using UEFI you can setup grub to boot windows. So the Windows bootloader, which was installed in C:, wasn't used. Whenever I run ls on grub command line, I only get the first disk with its partitions only and the other disk is not detected by grub and I can't boot my disk images from there. lsblk : NAME MAJ:MIN RM SIZE RO TYPE MOU I want to install grub2 on my secondary Windows partition and chainload from primary Windows boot loader with dd. In this shell, run the command map -c to get a list of all Feb 11, 2019 · Running sudo update-grub in Linux might be enough to allow Ubuntu to detect the presence of Windows and add it as a menu item in GRUB. The `chainloader +1` line tells GRUB to load the operating system that is located on the first partition of NTFS-3G applies Windows restrictions to new file names through the windows_names option: ntfs-3g(8) § Windows_Filename_Compatibility (see fstab). Top. That new disk will not have the same UUID as the original, you have to correct everywhere it was My device has an SSD ( with Linux and Windows on it) and and HDD for data with some ISO images on it. On the "GRUB location" tab I chose the setting which says: "Place GRUB in all disks (except USB disks without OS). Dec 4, 2022 · There is only one entry for that BOOT disk and it is not working as a boot volume using this second disk's GRUB. In this guide, we will show you how to add a Windows entry to GRUB. We need, not only to map the hard disks, to make Windows think it is in the first hard disk but also indicate Grub to boot the second partition from that second hard disk. 1. Ext2 is an old partition standard. After grub is installed, you should be able to point the bios to the Linux disk and grub should boot. In the past I remember If the os-prober method above doesn't work try adding a custom grub menu entry. Either way, just let it through to continue. Here is how: how to move grub boot from one partition to another in linux. In the bios I have set it to boot to Chrome OS by default so this seems to practical to me. How to Add a Windows Entry to GRUB. 2 SSD, but the Ubuntu installer didn't automatically add an option for GRUB2 to boot the external drive like I expected. Lets see details, use ppa version with your live installer (2nd option) or any working install, not Boot-Repair ISO: Please copy & paste the pastebin link to the Boot-info summary report ( do not post report), do not run the auto fix till reviewed. ; Using a root console in GParted, mount the old boot partition (let's say it's /dev/sda1) and the new partition Mixing different hints: Under Ubuntu I changed GRUB_DEFAULT=0 to GRUB_DEFAULT=saved and ran Later I ran grub-editenv - set saved_entry="Windows 10 (on /dev/sdb1)" choosing one of the available options, so I made Windows start next time as default; Find the 'grub' folder in the hard disk and then open menu. The whole hard disk is for that distro. How can I create an automated grub rescue disk for Gen8 Microservr? Hot Network Questions In the Gospel Of Luke, is there punctuation in the Since I figured this out yesterday I may as well point the answer. If you want to boot from grub uefi you need the corresponding uefi boot entry that specifies the beginning of the windows partition. Share. I think it will also detect outside the disk you install it on, Like if you have a Live USB plugged that is not the booted system it will include it too. With multiple drives best to keep each system on different drive and then have its own boot loader in that drive. Then when selecting from UEFI/BIOS you can boot either system. Download and install grub2win. Clone partitions. I am trying to install grub in such a way that ubuntu is the default boot and has priority over windows boot There is a tool named Rescatux that is able to add a Windows entry to the grub boot menu automatically. cfg, then: update-grub; reboot, and select the partition you want to boot from (say /dev/sdb2). Windows 8. This will keep grub from looking for other OS'es. In In my computer I have two SSDs, one for windows 7, the other will be entirely dedicated to ubuntu. for added luck, do; a) install-grub /dev/sda. To stay on the safe side I would to the following If you have one disk. Type the following I have an internal hard drive with Windows 7. The recommended way to set up a Linux/Windows dual booting system is to first install Windows, only using part of the disk for its partitions. It was available in the EPEL repo for me, but you'll have to find a different repo for it on Arch. When you get to the Regional settings Adding Windows to GRUB can be a simple process, but there are a few things that can go wrong. run update-grub; It should detect Windows on the first Disk, and add an entry to the boot-loader choices. cfg file always had the UUID of the Ubuntu root partition on the second disk, (causing grub to fail if this second disk is not present), so no change is necessary. Secondly Windows has to boot initially from its boot manager bootmgfw. this will make the current booted partition the primary boot partition. Drive order refers to the order in which the drives are physically connected to the bus on the motherboard (first drive, second drive, etc. This is commonly used to boot Windows for instance. I used custom partitioning during installation, created 100GB partition on /dev/sdb and To be clear, without the second drive windows boots perfectly. What would happen if I deleted other Windows partitions? I do seem to be having trouble with the disk in another computer. The OS is properly detected: I was using windows 10 installed on a SSD plus an HHD for storage. I Add grub to windows boot manager. \ Drive so to install grub use "grub-install \. Controversial. GRUB2 relies on a file system on the same device containing /grub or /boot/grub for its configuration files and modules. The problem is not with "the disk isn't bootable," because both the Windows UEFI bootstrap and the Grub UEFI bootstrap are bootable. Visit Stack Exchange And the contents of grub on the new disk will still all reference uuid whatever which was the old disk, not the current new disk. Installation. cfg After reboot your Grub should contain the Entry for Windows, for more information about how to configure your Grub see this Page adding something to custom_40 or anything alike breaks the whole grub2 and I have to purge && re-install; Windows 10 has valid boot-entries, partition, etc, etc, because it worked before the re-installation of the aforementioned OS, and nothing has changed about the Windows 10 installation Windows 8. grub> ls Of course it may be difficult to determine which drive is the USB stick you want to boot. ); this information is reported by the BIOS. Problem: I have two disks, disk1 and disk2. On the tab which says "Other options" I chose "Place the boot flag on:sda1 (Ubuntu 14. I wish to add it to grub boot menu but os-prober won't find Windows, witch make sense with my low knowledge. Now I am wondering if there is a way to fix Save a backup of your all your grub configuration files. when installing linux, you can install in uefi mode or the older Legacy (bios) mode. So it might make sense to create a separate ESP on the disk containing Windows and install the Windows Boot Manager into that instead. In boot loader I see new items, but when I click It I see error: invalid efi file path Or . cfg to "flip" the disks, you might have to add them yourself by editing one of the /etc/grub. Q: How do I add Windows to GRUB? A: To add Windows to GRUB, follow these steps: 1. Looks like UEFI system, but old BIOS installs. However, if Windows is on the same disk on a different partition, or if regular chainloading doesn't work, then read on. For instance, to boot Windows 7, add the following to the grub. You can ls within the devices to try to figure that out. Boot your computer into the GRUB shell. 47 GiB, 256060514304 bytes, 500118192 sectors Disk model: WDC PC SN520 SDAPNUW-256G-1006 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 82BBB9B1-1B1A-4018-AFBB-FC20F107548E Dispositivo When Windows (or another MS DOS based boot loader) is installed on another disk, then regular chainloading in the grub. Another option would be installation grub-customizer and use its GUI to configure boot priority. 12) no longer loads normally with the OS selection, but I have a GRUB screen in the terminal that says: Minimal BASH-like line editing is supported. cfg may be sufficient to boot it. I downloaded os-prober(using pacman) and update-grub (from aur) and ran sudo os-prober which just ran without any output and sudo update-grub which did not recognize windows nor add it. The first three options carry an increasing risk of creating new problems; mucking This is how I moved a Debian installation consisting of a boot partition /boot and a root partition / to a new drive and made it bootable using GNU GRUB:. Find the Windows installation May 11, 2012 · The grub2-mkconfig command creates a new configuration based on the currently running system. It should now boot Windows 10 from the new disk and show the increased disk space. To make sure nothing went wrong with grub/linux I unplugged the first hard drive during installation. Simply type the # menu entries you want to add after this comment. This is how I moved a Debian installation consisting of a boot partition /boot and a root partition / to a new drive and made it bootable using GNU GRUB:. cfg to generate a new config file and then reinstall grub into the first hdd that you I have a win10 installed in a M2-nvm disk (The BIOS only shows me one option to boot: Windows boot manager). g. lst. Once Windows 11 was installed, my computer began to boot Windows 11 instead of When Windows is not found in the first partition of your second hard disk it might be because the first partition is in fact a recovery partition. You need to edit menu. Assuming GRUB is installed on the Windows SSD. First boot on your Windows Vista/7/8 installation DVD. Open a terminal window. If Secure Boot is in effect, when GRUB uses an UEFI system call to read it into memory, UEFI detects it is not a signed UEFI binary and marks the memory block as grub-install /dev/sda update-grub # In order to find and add windows to grub menu. Open a terminal and run the os-prober If not, you need SuperGrub2 disk. You should be using a Live USB to clone Ubuntu from the HDD to the SSD. When Windows is not found in the first partition of your second hard disk it might be because the first partition is in fact a recovery partition. The Overflow Blog “Data is the key”: Twilio’s Head of R&D on the need for good data Learn how to install Windows from GRUB in three simple steps. Q&A. disk not found I tried different combinations of (hd2,0) starting from hd1,0 to Finally open /etc/default/grub and add. 3. Now I can use : either GRUB where I can choose between Mint and Win10, or windows boot manager that I have to select directly from UEFI boot options. com executable. But my first goal is to make Windows 7 accessible from disk 0 There was a comment to original question stating Windows Boot Manager cannot boot to linux. Modified 6 years, 1 month ago. Generating UEFI boot file. Viewed 12k times 2 . It doesn't sound like you're trying to do this, though; it sounds like you want to boot the Windows on your external disk from the EFI-mode GRUB on the external disk. I have a Windows , Linux and Android installed. I want a dual-boot in grub to start Ubuntu or Gentoo. Therefore if you have several partitions with /boot (or the MS windows equivalents, I do not know them but os-prober knows) the os-prober will find them and create grub. So I know have a system that is theoretically a dual-boot system. I bought new 2 TB HDD and want to replace old Disk 1 HDD. This will update GRUB's boot list by probing for Windows on the second drive. The Windows boot partition works when I am booting from the BIOS, but somehow I can't get GRUB to automatically add it to its configuration. To complete the setup of the second disk, edit the /etc/fstab entry for the /boot/efi entry to use the UUID of the second disk's EFI. Open comment sort options. I can boot to either one from the BIOS, and I used EasyBCD so that it will let me choose when booting to the windows drive, but I'd like to add a GRUB option for the windows drive so I can eliminate any additional software. 1 GB, 256060514304 bytes 255 heads, 63 sectors/track Thus, the EFI-mode GRUB on your external disk will not boot to your internal-disk Windows. Usually, it's in my desktop computer, but I now want to run it from my laptop, as well. Typing ls at the command prompt will list the devices grub has found. If you are wondering why, I have a bit of a weird setup in which I have windows on one internal disk and Chrome OS on another. grub> ls (hd0,1)/ Disk 1: Windows partition (C:) Disk 2: Data (D:), Linux (invisible from windows due to filesystem), swap. . cfg' and 'update-grub' but Grub won't add the Linux on sdb1 to the boot menu. Documented here. 2 LTS. If I have to download Puppy Linux or something I will, but I would prefer to I have windows 10 and arch Linux installed on 2 separate disks(sda-windows and sdb-arch linux). Maybe it's worth a try: Restore Windows bootloader. sudo grub-install path/to/root/disk Grub auto-detects operative systems during installation. I guess you meant moving GRUB to another partition (possibly the Ubuntu partition). windows; grub. What is happening now when you try to boot with the drive plugged in, is that Grub accesses the first partition on it, which supposedly contains the Ubuntu boot code, but finds instead a Windows partition probably How to add Windows to grub? Ask Question Asked 9 years, 8 months On this disk windows is located, I'm trying to write in GRUB file GRUB config sudo update-grub. It is the keeper of the partition table data and it is always located on the first partition of (the first) disk. Visit Stack Exchange Finally, for this step, we need to copy over the contents of the old /boot directory to the new one. (GParted automatically adds the esp flag when checking boot. If the two OS are both using I don't know if the Ubuntu installer will actually provide the diskmap hd0 hd1 and diskmap hd1 hd0 lines in grub. I have tried sudo update-grub, I have run sudo os-prober, but I can't seem to get windows to be added to grub. cfg with update-grub: #!/bin/sh exec tail -n +3 $0 # This file provides an easy way to add custom menu entries. cp -r /boot_old/* /boot Install Grub🔗. I have mine in /dev/sda. uefi uses an EFI partition to hold the boot files, legacy puts a bootloader on the mbr of the boot drive. lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 477G 0 disk ├─sda1 8:1 0 450M 0 part ├─sda2 8:2 0 sudo grub-install /dev/sdX # Example: sudo grub-install /dev/sda This will rewrite the MBR information to point to the current installation and rewrite some GRUB 2 files (which are already working). First two steps are for finding your <UUID>. When Linux installed itself, it also installed GRUB in the second disk (BIOS, not UEFI). Using the GParted live CD, create the boot and root partition on the new drive. If UEFI boot scheme is being used If your system uses UEFI, the Windows' installer will register a new bootloader setting in the system NVRAM, typically named Windows Boot Manager and place it as the first in Nov 6, 2020 · Usually if you boot into windows, the windows boot manager looks up the beginning of the windows partition in the MBR. Windows = sda, Ubuntu = sdb. Share Sort by: Best. Now I want to add a menu item to GRUB to boot Windows. Disk1 with working Debian 12 (As mentioned. To go from GRUB2 to another MBR you need to do the following. 3G Windows recovery Once you are booted into your Linux partition, follow the steps below to get your Windows 10 install added to the GRUB menu list. It was simply the disk. sudo add-apt-repository ppa How To: booting another Grub from Grub 1 minute read Chainloading an operating system allows grub to boot an opearating system’s boot loader. On Linux run sudo update-grub. --force is needed to overwrite a warning for not using first partition. My problem is that neither os-prober nor grub can find windows 10. First, a word about drive order and boot order. Boot up into Linux. cfg pointing to all the OSes. As can be seen below, my attempt at installing grub was semi-successful. Q: Is it safe to add a Windows entry to GRUB? A: It is generally safe to add a Windows entry to GRUB, but there are some risks involved. Disk 1 is a Windows XP hdd drive. Install the new OS (in UEFI mode) to a new disk, and when fully functional, reconnect the original OS disk. I want to add another disk and install Linux. If Ubuntu is installed in EFI mode, and EFI partition UUID has changed, This almost worked for me I am having trouble adding Windows 7 to my GRUB 2 boot menu. This guide will walk you through the process of installing Windows on a computer that already has GRUB installed, or on a computer that you want to dual-boot with Windows and another operating system. Modified 4 years, but I'm not sure how to update grub, because update-grub didn't add the new partition with Debian partition to its menu. The rest of the options that the program has were remained as they The problem is that Windows 11 is installed on a completely different nvme ssd than the one that arch linux and therefore grub is. Usually, detecting Windows is the job of os-prober during grub On my BIOS (UEFI) there is the option to boot from the hard disk and another UEFI hard disk Windows Boot Manager. Ask Question Asked 6 years, 1 month ago. 1) Faulty Windows Boot Manager. The problem is which UEFI bootstrap the BIOS Installing GRUB over Windows' boot manager. 04 on an internal M. Migrate Debian from one disc to another. cfg: Code: I had two OSes running in parallel. Anywhere else That's not correct procedure. You can verify it using the file command. I wanna dual boot the PrimeOS system which is installed on another drive. (The laptop is a dual boot Windows 7, Ubuntu machine. Can I know I can always set the priority of Windows over Ubuntu in the Grub order, but I want my Windows to be untouched in my primary disk (SSD) and not Grub booting it for me. I can specify disk with //. Running grub-install install a GRUB When manually partitioning the 2nd disk during the Ubuntu install, I installed the bootloader to the MBR instead of creating an EFI boot partition. efi is an instruction entry in Window's BCD, which has to be present in the ESP, there's no way to Stack Exchange Network. Solution 4: Clean Installation Of Windows 10. or other option that allows me to start Windows when the disk is connected and to Ubuntu when its not connected. If you have UEFI Bios you need create linux The EFI/ubuntu/grub. Both disks are formatted using GPT and UEFI boot. Since windows is on MBR there currently is no such file. 4G Microsoft basic data /dev/sda4 1921404928 1953523711 32118784 15. If you have one of the many OEM computers that didn't come with a Windows installation disk, you can get the same effect with a Windows repair disk, which you can download (eg Win7-32bit, Win7 64bit) or create from another Windows Vista/7/8 computer. d. ===== Drive: sda _____ Disk /dev/sda: 256. I tried adding option with grub customizer, it added an option but when I click it it says: First of all they are on different hdd/ssd, if not check windows hdd/ssd if there a vfat partion . Best. Or grub in Linux install's drive & Windows boot loader in Windows drive. If you want to continue to use the old disk, e. Thing is, Windows installer forced me to install it on another drive using GPT. That leaves Windows Boot Loader do be a particular boot choice, that represents a particular installation of Windows. Nov 16, 2024 · From the GRUB menu the Windows recover option brings me to a stock wallpaper and a mouse I can't move before shutting down. The easiest and most foolproof way to do that would be to temporarily remove the Windows drive from the machine, since we are going to assume there is nothing extra installed on it, regardless of drive order. With UEFI hardware, you should always use UEFI and gpt partitioning. The instructions below use sdb1 for the On my laptop I have Ubuntu 24. I'd like to add Win 7 to GRUB but I don't know how I tried : sudo update-grub (no I am using a dual boot Windows/Kali linux and since the latest grub update, the Windows entry was removed. I used the built-in Startup Disk Creator application to put In this tutorial, you will learn how to work with GRUB 2, add and remove menu entries, customize titles and boot options, dual-boot and triple-boot operating systems, combine GRUB (actually, GRUB 2 — this is often used ambiguously) is the bootloader installed by linux and used to dual boot Windows. b) install-grub /dev/sdb I am trying to make a kernel in Visual C++ (Windows) using the tutorial here. Or not?) Learn how to add a Windows boot entry to GRUB in three simple steps. So I got this from /boot/grub/grub. Device Boot Start End Blocks Id System /dev/sdb1 * 1 7298 58614752+ 83 Linux /dev/sdf1 1 125 1000000 82 Linux swap / Solaris Partition 1 does not end on cylinder boundary. For this, you will have to download the ISO file of In the second case, you should first try and re-install linux onto the second disk, and this time make sure that's where the bootloader goes. Old. Because Windows must be started from the first hard disk, you need to use the map command in the GRUB configuration file. 04 LTS drive to add Windows 11 (I used my Ubuntu bootable to partition the drive). Now I installed another Hard drive with yet another Windows 10 on it for another Job I just took and everything got mixed up. You need to enter the id of the EFI boot partition (not the windows partition) for the set root= command. This is most probably because I have fast boot enabled in my BIOS settings (I'm booting Starting Windows from a hard disk other than the first hard disk. Replace the old UUIDs by the new ones in "/boot/grub/grub. /PHYSICALDRIVE0. I personally have a dual boot system with xp and Wheezy. exe. I read all the posts about it but could not solve the problem. And i have one HDD. cfg runs os-prober (if it can find it) which scans all partitions and produces a grub. This guide will help you get your Windows PC dual-booting with Linux, so you can choose which operating system to boot from each time you turn on your computer. If Ubuntu is the second entry in the boot screen then set GRUB_DEFAULT=1. I installed Windows 10 to a second hard drive I added to my desktop. To repair grub from windows, install Windows 10 afresh so that the installations done previously completely get removed. Problem is, the Linux SSD had the Windows boot partition, the other SSD have the Windows itself only, a NTFS partition only. 1 being the default one, formerly it used to be Grub2, anyhow before being able to fix the Windows booting it would boot to (I guess) Grub2 and it would be a black screen. I recently deleted a Windows partition, but the problem existed before this. The problem is, the /bootmgr of a BIOS-bootable modern Windows is still a 16-bit executable, similar to a DOS *. cfg" by entering the following in a terminal : gksudo gedit /boot/grub/grub. 04 for work and one for Windows 10 and private usage. It looks like How can I make the BIOS prefer GRUB over Windows Boot Manager on the same UEFI boot partition? The problem is not with Grub; Grub does the right thing when the BIOS starts it. 04 along with Windows 7 installed on /dev/sda. The `set root=(hd0,0)` line tells GRUB to use the first hard disk (hd0) and the first partition (0) as the root partition. ). Run lsblk and find the name of the row with /boot/efi; Example output (here the answer is sda2):. Set the Linux OS first in boot order, solve any temporary Grub issues; and install rEFInd Follow them carefully and you should be able to fix Grub after Windows 10 upgrade, fresh install, or a faulty Grub file. A value of "true" disables the os-prober check of other partitions for operating systems, including Windows, Linux, OSX and Hurd, during execution of the update-grub command. This should be it. This is FUD. I tried mkconfing And update-grub(os-prober enabled) but it's still not detecting windows and adding it to boot menu. I removed Ubuntu using a combination of OS Have seen Booting multiple OSs from multiple disks with UEFI and rEFInd looks to be a good alternative; this question is about how to correctly configure Grub2 to see the bootloader for Windows7 (or any OS), if at all possible - without using Grub-legacy or The critical step {during installation} is : We need to tell the Ubuntu installer where to install the system bootloader (GRUB 2). I first created a new fat32 partition with GParted on the Ubuntu disk, with the boot flag. Since bootmgfw. How would I add windows to I am trying to install grub from my functioning Debian-12 system to another disk in my PC. cfg I was able to get back into Windows by formatting the EFI partition to FAT32, assigning it a drive letter E, and then executing this command on a Windows rescue disk: bcdboot C:\Windows /S E: /F UEFI However, I can’t This entry is used to prevent GRUB from adding the results of os-prober to the menu. One Ubuntu 20. I've installed Ubuntu 16. Afterward, you would need to run the command to update grub config: update-grub. How can I create an EFI partition on my Ubuntu drive and get grub on there? Boot drive is always hd0, so often first boot of anything not installed to first drive is an issue. I am fixing to install windows 8 on an external hard drive through a usb port. When I boot into my hard disk Windows Boot Manager, I go into grub2 and Ubuntu boots fine, but Windows just sends me back to Grub2. That is because, firstly, Windows was installed on HDD, and when I installed it on SSD, it I have a laptop that should be running two Debian 9's, one Debian 11 and one Windows 10 from two disks, one hard disk drive, /sda/, and a new solid state drive, /nvme0n1/. This will allow you to boot Windows from GRUB, even if there is no Windows Boot Manager installed on your computer. I learned that UEFI has a separate FAT32 partition which can contain multiple bootloaders, which are executable files with . The issues I had: * The Windows install DVD need to be booted in UEFI mode * The Ubuntu version of GRUB"2" didn't display any text/graphics, so I had just a pink screen until Ubuntu had booted, which led me to revert back to BIOS and oldschool Nov 16, 2024 · I've installed Gentoo in one of my hard disks. Recently, I have added another ssd where I have installed Ubuntu 18. To do this, run the following command: Step 5: Reboot your system. But better to use UEFI which needs an ESP - efi system partition. So now I can't use my 2nd disk as the primary boot drive - it just goes straight to Windows. I have disabled legacy boot in the bios. if you not found any the best solution it reinstall windows, it's brutal but the easy way If the results identify a Windows 10 install, type sudo update-grub which will update the GRUB entries and add it; Installed on normaly hd bay Second on (/dev/sdb), stock hd (with recovery partition etc etc) moved to SATA-ODD slot in place of dvd drive with an adapter. First, make sure you nixos-rebuild switch or nixos-rebuild boot, then reboot your machine and select the entry "EDK2 UEFI Shell" from the systemd-boot menu. And you could then optionally install grub also to the other disk boot sector by running grub-install /dev/sdb. d/40_custom and rebuild the grub. Before I disabled the restore option, I would have to fix grub at least once a week as windows bootloader kept overwriting grub. The configuration format is changing with time, and a new configuration file can become slightly incompatible with the Oct 1, 2022 · Is it possible to update the grub config to add another entry to boot from another disk which I have windows installed on. Grub is not able to read NTFS (Windows) partitions in stage 2 (before its loaded its modules) by default Therefor if you wanted to include these modules they couldn't be part of the Windows partition. I wish to add a third boot option to ms-dos on the second primary partition [edit: FAT16] on this disk. Then you can install grub to your new efi partition with the command sudo update-grub and then sudo grub-install /dev/disk that is Ubuntu (sda) or whatever. When I plug the new disk; the bios still showing only one option to boot: Windows boot manager. How can I add an entry to GRUB2 that boots to the second hard disk? (The fact is: I think this question can be asked without specifying which one is the operating system in the 2nd hard disk. I installed the Ubuntu partition after Windows so configuring GRUB for that was quite easy. First install Windows then install grub on /sda and Linux system on different partition than windows . I tried to add the Windows entry to /etc/grub. Find the Windows installation Make grub boot from another disk. Notes: Windows cannot boot from an external drive (without hacks). sdb is what I assume to be the device node for the second attached disk, else try sda Grub is therefore installed on your system disk, and is apparently set to boot first from the external disk and second from Windows. How to install Debian with encryption on a Windows installed disk? I want to add an option to the grub menu that when I click it, it will start Windows 10 from the disk. Booted into Ubuntu and ran update-grub2 to create a menu entry for the new Windows drive; Partitioned the SSD to contain the Ubuntu disk using gpartd; Using rsync copied the contents if / to /dev/sdc1 mounted as /mnt; ran grub-install /dev/sdc after unmounting it, which ran successfully. ) and the other Disk2, on this one there is a Windows 10 and cloned partition of my Debian from Disk1. ran update-grub2 to create a menu entry for the new Create a new GRUB boot entry for Windows. when booted, do update-grub again. And grub2win gives a download I am a new on Ubuntu. New. You need to add the XP NT loader (ntldr) to the 8. 1 boot manager I am not able to boot Windows 7 from Disk 0 as the Windows Boot Loader is installed on Disk 1. Extract the grub2win ZIP, and run setup. GRUB_HIDDEN_TIMEOUT=0 So it looks like. efi extension, and that the BIOS of my Dell XPS15 laptop has well I am a new on Ubuntu. Boot GRUB2 to GRUB or Installing Ubuntu on Different drive than Windows 10. Can somebody please help me with the apt command for selecting the OS from another drive in GRUB Customizer. By following these tips, you can troubleshoot any problems that you may encounter. It may come up as a false positive on anti-virus software, we are going to be overiding the boot manager which could potentially prevent Windows from booting so maybe they are right in that regard. Facing the very same problem with Ubuntu 18. Browse other questions tagged . ; Using a root console in GParted, mount the old boot partition (let's say it's /dev/sda1) and the new partition I needed to add Win 7 as a new OS. Hello guys, i have some troubles with dual-boot, I have Manjaro linux on ssd and Windows 10 on another ssd, but grub can’t find Windows boot-loader. We DO NOT want to install the bootloader on /dev/sda, as that would overwrite our disk’s master I only ever have one of the disks connected at a time, so neither install has seen each other, but they both run on the same hardware every day. The second drive doesn't need a MBR at all right? Wouldn't I want to erase the MBR from the secondary, not write one? – FrostyFire. As you have 2 disks, you can have 2 functional grub, the Windows grub in the MBR of your Windows disk, and the Linux grub in the MBR of your removable disk. d files to provide a custom Windows boot. I added it by installing on a partition than using dd to copy it as mbr and add it as boot selector. 04, I followed PrakashS's answer while making sure the new EFI partition was mounted at /boot/efi before installing grub into it. cfg Stack Exchange Network. Debian GRUB installer partitioning step - Intel MacBook In this guide, we will show you how to add a Windows entry to GRUB. cfg" is very tricky. Ask Question Asked 6 years, 9 months ago. 2. sudo grub-install /dev/sda WARNING : Modifying "/boot/grub/grub. I personnaly use it to be able to have my “production” system’s grub on the MBR, and address other distros’grub install on their root partition. sudo update-grub - to add windows to your grub menu; you can plug the Windows disks back. My aim: and Windows XP when booting. So I ran boot-repair and I chose Advanced options. What I am wondering is how to install GRUB from within Windows 7. Still if in case of an emergency I disconnected the second disk or it failed It's not about locating the loader. They must be embeded in Jul 11, 2021 · Clone Ubuntu installation on the same machine that has dual with Windows. For a start there has to be a Microsoft entry in the ESP, otherwise Windows won't boot. When that option is invoked it will run the Windows boot manager Feb 10, 2024 · Both systems have dedicated ssd. Regarding your specific case, because you installed Windows after Fedora, it changed the bootloader order (different from drive order) to its own (Windows bootloader manager). 1 and Windows 11. Path where PrimeOS is currently located: /dev/sdb1/PrimeOS How To: booting another Grub from Grub 1 minute read Chainloading an operating system allows grub to boot an opearating system’s boot loader. For the first word, TAB lists possible command completions. To install GRUB in the MBR of the new disk run the following command: grub-install /dev/sdb At last, we need to run the following command: update-grub Final steps🔗. But the process is hard. on my SSD. in the That's rediculous - because there's already an NTFS driver in the kernel - called ntfs3, not to mention I don't see why we need a NTFS driver to chainload the windows EFI bootloader through GRUB - it exists on the same partition as the GRUB EFI bootloader, which is usually FAT formatted and it's usually located at (provided default '/boot/* ArchLinux mount point) I replaced that F41 installation with another Fedora 41 KDE Spin installation. I know similar questions have been asked and answered on this site and others, but none of the answers seem to work for me. If that is the case I would need to create a Note that you can enter a command line from the grub boot menu and just type commands as above to test out different combinations. 04 LTS) although this is more like in anyones free choice. Grub only boots working Windows. At least run this to update your Grub: $ grub-mkconfig -o /boot/grub/grub. Mar 19, 2021 · That's not correct procedure. Nov 17, 2024 · I dual-booted Windows7 from one GUID partitioned SSD, with one (1) EFI boot partition on the "first" disk (the SSD). Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. tvx ghhun enqbcn izsx rsqs jtequzt cqnto vbes fbafggz wfmzt