Reinstalling GRUB 2 on non-EFI systems. Fortunately reinstalling the Grub bootloader is rather straightforward, and quick. All you need is your original Debian install CD, DVD or USB pendrive. Boot your PC from the installer medium, and select Advanced Options by navigating to it with the arrow keys, then press Enter 8. Copy this command to install GRUB: grub-install / dev / sda 9. Finally copy this command to update GRUB: sudo update-grub 10. Finished. Second (2nd) method: by Using EasyBCD on Windows 1. Download it from this link 2. Run the program then go for this steps: - Add new entry - Linux/BSD - From Type choose: Linux(GRUB) or you can choose (GRUB 2 . If Ubuntu is installed in EFI mode, and EFI partition UUID has changed, you may need to update it in /etc/fstab Reinstall GRUB. One possible cause why you are reading this document - is an unfinished update - which in turn can be caused by several situations - situation we will not dive into. To fix what ever caused this you should run a full system update including grub to ensure everything is in place
Run the following command to reinstall grub from the live CD, replacing /dev/sdX with the device name of the hard disk above. Omit the number. For example, if you used /dev/sda1 above, use /dev/sda here . If the first solution didn't fix your problem, a possible reason may be that you have a broken GRUB file. In that scenario, we would need to repair the file using a tool called Boot Repair. Now, since you cannot boot into Ubuntu, we would need a bootable USB drive or Ubuntu live CD Fix Dual Boot system booting straight to Windows. Though I'm referring to Windows 10, the steps are equally valid for Windows 8 and 8.1. Similarly, I'm using Ubuntu in dual boot here, but the trick applies to all other Linux distributions such as Linux Mint, etc
Grub requires re-installation whenever the Master Boot Record (MBR) on the boot device is damaged or overwritten by other boot loaders. It is also required in situations where the boot device changes post-installation like when the boot from SAN configuration is enabled after the server has been installed or when a single-pathed SAN boot device is reconfigured to become multipathed Reinstall grub: grub-install --root-directory=/x $drive. Beware: You want to install grub on the drive (e.g. /dev/sda). If you install it on the partition (e.g. /dev/sda6), the grub-install program won't complain, but the results won't be what you wanted. That's probably enough to get you going 4.1 Installing GRUB using grub-install. For information on where GRUB should be installed on PC BIOS platforms, see BIOS installation.. In order to install GRUB under a UNIX-like OS (such as GNU), invoke the program grub-install (see Invoking grub-install) as the superuser (root).. The usage is basically very simple Reinstall the grub-efi package apt-get install --reinstall grub-efi. Put the debian bootloader in /boot/efi and create an appropriate entry in the computer NVRAM grub-install. Re create a grub config file based on your disk partitioning schema update-grub. You should check afterwards that However, if you like to manually reinstall the GRUB boot loader from Rescue operations menu, follow all the steps presented in this tutorial until you reach point 13, where you make the following changes: instead of choosing the option to reinstall GRUB boot loader, select the option which says Execute a shell in /dev/(your_chosen_root_partition and press [Enter] key to continue
GRUB is the default bootloader for Linux kernel-based operating systems. In some cases, you have to run both Linux and Windows on the same machine (Laptop or PC), you may encounter some issues with GRUB. For example, if you install Windows after Linux installation, the Windows initiate its own bootloader on the MBR (Master Boot Record).. How to re-install bootstrap code (GRUB) If you have repaired your system from a backup tape (by dump or tar for example), or have installed another OS such as one from Redmond that may have overwritten the master boot record (MBR), you will need to repair the bootstrap area.. 1
Reinstalling GRUB on UEFI systems. Enter your installed system in a chroot using the instructions in Section A.1, Setting up a chroot from a live image. Be sure to boot the live image in UEFI mode. Reinstall the packages that provide bootloader files From the update-grub man page - update-grub is a stub for running grub-mkconfig -o /boot/grub/grub.cfg. So no need to do grub-mkconfig and update-grub. I think after grub-install is the correct time (if it makes any difference), so you basically don't need step 4 (although you can probably just shift the output to step 5 since it will be the same) Reinstalled windows 7 pro ok on 128G SSD , but system lost grub and ubuntu install. Just installed mint 17.2 on the 500GB HDD and used your wizard to restore GRUB!! Much thanks! Dont worry about the grub-install /dev/sda command, it wont erase your windows MBR, it just fixes the GRUB bootloader! YAY! HORAY! SUpergrubdisk2
The purpose is to just have access to your system so that you can reinstall Grub from your original Linux installation. When the first screen shows up (with the ACSII-art logo), you will have to boot with specific boot options so that it starts the system which is installed on the disk For example, in a GRUB-based multi-boot system, GRUB is what gives you the choice of OS. You can edit GRUB to remove an OS, change the order, etc. - fixer1234 Dec 10 '15 at 16:53. 2. You remove GRUB that Windows created, not the one you created from Ubuntu, or else you'll have two GRUB-s - notgiorgi Dec 10 '15 at 17:43 Most of the time Kali Linux grub is repaired by above steps but exceptionally you may not, so you have to do more commanding. Step 4. Boot the Live Kali Linux again, open the terminal type the following commands: apt-get install os-prober os-prober update-grub. This will help a lot to repair Kali Linux Grub. Good-luck
Most of the time the fix is to boot using Live USB and chroot into your installed system, then use os-prober and grub install Grub rescue Commands. Each of GRUB failed modes can be fixed by the grub terminal or live CD installer. At the grub command prompt, enter 'ls' to see the disk drives and available partitions Now, install the GRUB using grub-install command at your HDD MBR. grub-install /dev/sda Finally update the grub entries to show newly detected partition operating systems. update-grub And at last unmount all the binded partition directories, and then reboot. sudo reboot That's it, hope this will help! Boot-Repair also has advanced options to back up table partitions, back up bootsectors, create a Boot-Info (to get help by email or forum), or change the default repair parameters: configure GRUB, add kernel options (acpi=off ), purge GRUB, change the default OS, restore a Windows-compatible MBR, repair a broken filesystem, specify the disk where GRUB should be installed, etc
Manually Reinstall Ubuntu Grub Boot Loader. 14. However, if you like to manually reinstall the GRUB boot loader from Rescue operations menu, follow all the steps presented in this tutorial until you reach point 13, where you make the following changes: instead of choosing the option to reinstall GRUB boot loader, select the option which says Execute a shell in /dev/(your_chosen_root_partition. Without Grub in the MBR the system failed to boot. I mounted the new filesystem to /mnt while still using the live Clonezilla disk that I had used for the backup. Then I chrooted using the following command. chroot /mnt. then while in the chroot I attempted to reinstall grub, and since this was a Cloudlinux/Centos install I performed. grub. UEFI - GRUB Corrupted . Reinstalling grub2 on UEFI-based machines: 1. Boot the system using RHEL/CentOS latest DVD. 2. Once the system is booted from DVD, select Troubleshooting - > Select Rescue a Redhat Enterprise Linux GNU GRUB is a very powerful boot loader, which can load a wide variety of free operating systems, as well as proprietary operating systems with chain-loading 1. GRUB is designed to address the complexity of booting a personal computer; both the program and this manual are tightly bound to that computer platform, although porting to other. Installing Grub. Now we can install Grub in our system: # grub-mkconfig -o /boot/grub/grub.cfg # grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB. 1. 2. # grub-mkconfig -o /boot/grub/grub.cfg. # grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB
Installing Grub Legacy from Windows as well as Linux is very easy. Here I will install it from Windows. First, I will download the Grub Legacy binary from Ubuntu, the file name is grub_0.97-29ubuntu66_amd64.deb. Create /boot/grub or /grub directory on the root of the drive where you want to install Grub Legacy. The drive needs to be formatted. Mount the RHEL Disk/ISO under any location and reinstall the kernel. By reinstalling we will get back all the files like vmlinuz and initramfs. # mount /dev/sr0 /mnt # cd /mnt/Packages/ # yum reinstall kernel Saving or Regenerating GRUB Configuration . Finally, run the grub2-mkconfig to write the changes to a file GRUB (GRand Unified Bootloader) 2 is part of GNU Project and the default bootloader for famous Linux distros like RHEL, CentOS, Ubuntu, etc. GRUB is the first software program that runs when a computer is started.GRUB is responsible for loading the Kernel software. The Kernel then initializes the rest of the operating system.. There are situations in which GRUB bootloader is corrupted For some reason, I only formatted the partition where Windows was installed and re-installed. Now it only boot into Windows and doesn't show grub. I'm using a live USB and tried to reinstall grub: grub-install --boot-directory=/mnt/boot /dev/sda and getting the error: grub-install :command not foun
Boot the Rescue from the DVD. Here is how to re-install grub from the DVD. I don't run grub2-mkconfig -o /boot/grub2/grub.cfg Because I know it's already correct: Once the DVD rescue gets to '', type: root from there I run fdisk -l to confirm my HD partitition order. We need to mount root (for me that's sda3) Now mount / (sda3) with: mount /dev/sda3 /mnt To mount the other devices Next do. Reinstall Grub 2 when Ubuntu or Linux Mint won't boot; Enjoy! To get started, insert your Ubuntu USB into computer and boot up. When you're in, follow the steps below to reinstall grub 2: 1. Open Gparted Partition Editor from Unity Dash to check out which partition your Ubuntu/Linux Mint system installed Reinstall Grub. grub-install /dev/sda (specify the disk ` /dev/sdX `, not ` /dev/sdaX `) grub-install --recheck /dev/sda exit. Once you've successfully reinstalled Grub, restart the computer. On next reboot Grub will be the default bootloader and you'll be presented with a list of operating systems to choose from (Ubuntu and Windows, of.
For additional information about installing GRUB, see the GNU GRUB Manual and the grub-install(8) man page. For information about the EFI System Partition, see Section 9.18.1, Advanced Boot Loader Configuration. For information about the efibootmgr tool, see the efibootmgr(8) man page This one worked and came up with the Super Grub2 user interface. It found the Linux Mint install and booted it. Then I followed Ascaris's instructions to use the terminal command sudo grub-install /dev/sda to reinstall GRUB, which did the trick. When I rebooted, the dual-boot menu was back, so I'm back in business The grub2-mkconfig command will create a new configuration based on the currently running system. It collects information from the /boot partition (or directory), from the /etc/default/grub file, and the customizable scripts in /etc/grub.d/.. The configuration format has evolved over time, and a new configuration file might be slightly incompatible with the old bootloader
The recovery entry seems to be no longer available in Fedora 20 livecd, so I had to do grub reinstallation. Normally you'd go grub2-install /dev/sda but it returns the following error: Path '/boot/grub2' is not readable by GRUB on boot. Installation is impossible. Aborting. System details: BIOS system (non-UEFI) My /boot seems to be on sda2 (don't know how to verify that), my main system. Seeing nothing but the grub rescue prompt? Did Windows mess up your Master Boot Record? Using Ubuntu, GRUB 2 got you down? Who needs Live CDs? This video tut.. Grub Customizer is a great GUI tool for changing the default configurations of the grub bootloader. With this tool you can add, remove and rearrange boot menu entries via the GUI. It also allows you to edit kernel parameters to change the time delay at boot time. The Grub Customizer tool also allows you to customize the grub menu, e.g. change. If your grub menu does not show up even after you set GRUB_TIMEOUT_STYLE=menu and GRUB_TIMEOUT=10 in /etc/default/grub and updated the grub, try setting (uncommenting) GRUB_TERMINAL=console as wel grub Ubuntu esetén (sudo grub) A bejelenkező grub promtnál find /boot/grub/stage2 Ez megadja a boot lemezed címét pl (hd0,1) majd begépeled a következőt root (hd0,1) természetesen itt a saját címed szerepel, és végül setup (hd0) ezek után quit paranccsal kilépsz a grub beállítójából
I had to restore my system and data partitions from tape after a crash. Why does my Red Hat Enterprise Linux system only shows a black screen after POST? Why does my Red Hat Enterprise Linux 6 system drops to GRUB rescue prompt on boot? How to reinstall grub2 into the MBR on Red Hat Enterprise Linux 7 I re-installed Windows on my server and now I can no longer boot to Red Hat Enterprise Linux The how-to for Grub on (U)EFI in full UEFI mode can be found here. Repair Grub like this, for example when a consecutive installation of Windows has wiped Grub: a. Boot your computer from the Mint DVD (of from a Live USB with Mint on it). Note: only use the DVD of the Mint version that you wish to repair. So for 19.3, use the DVD of 19.3. b
GRUB is the GRand Unified Bootloader, a very powerful newish BootLoader that can be used to boot most operating system on the intel platforms. Debian provides both GRUB v1 and v2 (more on Debian BootLoader). GRUB v1 is the main 1 default bootloader on x86 platforms (up-to DebianLenny) What happens if you ruin your GRUB 2? There must be a way to reinstall it and save the day? Well, as always, there's the easy way and the hard way. Easy way: Super Grub Disk This great tool works with GRUB 2, so no worries, place it into the CD/DVD tray, boot and restore the mangled GRUB. You should keep an image handy and ready, just in case
Reinstall Your Programs. Select Backup Tool from Administrator in your Menu. Choose Restore software selection and navigate to your home directory. Choose the software backup file you created earlier and then click Apply or Forward Reinstall Ubuntu option in dual boot mode. In my case, it finds that I have Ubuntu 18.04.2 and Windows installed on my system and it gives me a few options. The first option here is to erase Ubuntu 18.04.2 and reinstall it. It tells me that it will delete my personal data but it says nothing about deleting all the operating systems (i.e. Windows) Uninstall ubuntu and GRUB: This step is totally optional, but required when you need to remove every part of linux, as the EFI system partition is untouched in this tutorial. To remove ubuntu grub you need to mount that partition on Windows and remove the entire Ubuntu directory with windows commands Apart from installing EasyBCD and other tools on your Windows partition to set things right, you can also just reinstall the lost GRUB boot manager with the help of a live CD (I used Ubuntu 11.10 for that). Insert the CD and boot from it. Open a terminal. If you have no idea what the name of your partitions is, us Windows reinstall messes up grub - After re-installing Windows, this user wanted to get back a Ubuntu Linux boot option. Recovering Ubuntu After Installing Windows - Uses Ubuntu specific procedure, rather than generic procedure documented in the page you're reading
Wizard - Restore Grub. Introduction. This wizard explains step by step how to restore Grub to your machine thanks to the graphical click-and-fix rescue suite Rescatux. You can find more information about what problems you can solve with this wizard and what you get after performing the Wizard steps at: Wizard - Restore Grub. Wizard steps to. When you are in the chroot, then run grub-install /dev/sdx, do not specify a number ie sda1, instead just put sda. It will install for i386-pc even though Arch is 64 bit only. For UEFI. When you are in the chroot, then run grub-install --target=x86_64-efi --efi-directory=/efi --bootloader-id=GRUB. Adjust efi-directory if needed. Back to guide. Reinstall GRUB Bootloader. Once you have the disk made, reboot your system. You'll need to tell the computer to boot from the Live Disk. When you see the System76 logo on the screen: Laptops Desktops; Hold F7 or F1: Hold F8 or F10: Once the desktop is shown, connect the computer to the Internet
Run the grub reinstall # grub-install /dev/hda. For those users who chroot into the mounted directory, and run the grub-install command only to be left with the message: Reply Link. Bjoern Jun 12, 2010 @ 13:47. Phew, thanks!. Managed to clone my old disk and now running my old Debian install on my new disk Fix GRUB Permanently. Now that we are booted in from GRUB Rescue, we can begin work with repairing our grub permanently. First we rebuild the /boot/grub/grub.cfg file: Debian-based Distributions use update-grub Other Distributions use grub-mkconfig -o /boot/grub/grub.cfg. With the Configuration rebuilt, we now simply need to reinstall grub Hi all! My son fiddled with YaST > Bootloader under openSUSE 15.0, and somehow managed to make his ASUS laptop unbootable. It is an EFI system. It was a dual boot, windoze 10 and openSUSE 15.0. That worked fine. After that he was still able to boot from an USB stick (what was that he wanted), and installed Kali Linux on two empty partitions earmarked for that The only thing I am not sure about is that when I did it the firs time, one of the steps was for me to choose where to reinstall the grub and I have chosen from the list the very first item which was something called sda and looked like my hard disk. The second item was sda0, or something like this and I wander if I maybe did not choose the.
GRUB_DEFAULT=6 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=2 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT=quiet splash GRUB_CMDLINE_LINUX= # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note. Grub starts it's notation from zero, 0, it also uses the hd convention but does things slightly different. For the first hard drive Grub shows hd0, for the second, hd1 etc. Partitions also start at zero, so first hard drive - first partition is hd0,0 . For Grub to recognize this it must be enclosed in brackets i.e. (hd0,0) It would be very useful if there were a sticky message on how to reinstall GRUB, especially for dual-booting Linux with other OSes when the other OSes were there first. Classically, as you all no doubt know, Windows wantd the MBR back if it needs to be reinstalled, closing off Linux via GRUB grub_timeout Время, после которого будет автоматически загружаться пункт по-умолчанию; grub_cmdline_linux Параметры ядра linux, добавляемые во все пункты меню
Note: This Grub2 USB Flash Drive Installation tutorial assumes you will be using Ubuntu to create your Grub2 enabled Flash Drive.It may or may not work from other Linux operating environments as well. Updated 11/28/20: Include full instructions on Compiling and installing Grub2 to support UEFI and BIOS 32/64bit platforms.. Prerequisites: A running Linux OS (I.E. Ubuntu Hello. I am sure there are plenty of newbies around when it comes to linux, myself included. This is a guide of how to repair grub in the event your windows 7 removed the grub during the installation. First thing that you'll need to do is to boot from a kali linux live cd. After that, go to gparted so that you can get to see where kali was installed: usually it's in the file system that ends.
Wenn der GRUB Probleme macht und Sie deshalb nicht mehr in Ihr System booten können, müssen Sie den Bootloader neu installieren. Glücklicherweise ist das mit einer Live-CD schnell und einfach zu erledigen. Falls Sie Ihr Linux-System starten können, haben Sie es noch einfacher - springen Sie in diesem Fall gleich zum letzten Abschnitt This is the recommended way to install Grub. grub-install /dev/sda1: Install Grub files in directory /boot/grub of current partition. Install boot loader in first partition of first hard disk. grub-install /dev/sda2: Install Grub files in directory /boot/grub of current partition. Install boot loader in second partition of first hard disk
A.GNU GRUB (GRUB for short) is a boot loader package from the GNU Project. GRUB is the reference implementation of the Multiboot Specification, which allows a user to have several different operating systems on their computer at once, and to choose which one to run when the computer starts Use the grub2-install device command to reinstall GRUB 2 if the system is operating normally. For example, if sda is your device : ~]# grub2-install /dev/sd One reinstalled the system, and installed linux to a new partition, the original partition has been formatted, but did not reinstall GRUB2. One use Linux backup tools or manufacturing tools, restore the main partitions to the old 8.X version, but the old version of GRUB is GRUB1, then the GRUB2 destroyed. Reinstall GRUB
In this blog post I will show you how to reinstall grub on kali linux. GRUB (Grand Unified Bootloader) GRUB provides a choice to select OS from a multi-booted operating systems or select a specific kernel configuration available on a particular operating system's partitions # Install and configure grub bootloader pacman -S grub efibootmgr intel-ucode grub-install --target=x86_64-efi -efi-directory=/boot -bootloader-id=grub grub-mkconfig -o /boot/grub/grub.cfg. Last edited by vorlket (2019-10-19 11:41:58 It managed to fixed the Win7 booting and reset GRUB. I just reinstall Primitivistical theme. Give Boot Repair Disk a try if nothing works. Reply. Dave July 6, 2020 at 3:06 pm. I deleted a now unused partition and expanded the OS partition, Kubuntu 20.04 into the space. Note that the boot partition resides in an Extended Partition Windows reinstall, GRUB eltûnt Kezdőlap › Fórumok › Fedora Core / RedHat /CentOS › Fedora/RedHat kezdõ › Windows reinstall, GRUB eltûnt This topic has 10 hozzászólás, 9 résztvevő, and was last updated 14 years, 4 months telt el by weiszj The simple way to install grub/ grub2 from any linux live-CD or any other bootable medium. Step 1: boot from linux live CD/DVD or even USB Step 2: mount your hdd Step 3: chroot in the mounted filesystem Step 3: install grub Step 4: reboo Once upon a time we had legacy GRUB, the Grand Unified Linux Bootloader version 0.97. Legacy GRUB had many virtues, but it became old and its developers did yearn for more functionality, and thus did GRUB 2 come into the world. GRUB 2 is a major rewrite with several significant differences. It boots removable media, [