Grub Rescue - Complete Re-install of GRUB 2 from Live USB
Why Ask Ubuntu recommends it
Ask Ubuntu answerers link it as the standard walkthrough for restoring GRUB from a live USB after Windows installs or other changes overwrite the bootloader.
Recommended by 4 people across 4 different months, 2013 to 2021.
What it is
A short 2011 screen-capture tutorial by NixieDoesLinux showing how to reinstall GRUB 2 from an Ubuntu Live USB. It walks through mounting the installed system, bind-mounting /dev, /proc and /sys, chrooting in, and running grub-install, with the commands listed in the description.
What people said
Recommends simplePerson43 · 2013-01 · Ask Ubuntu · on “Triple Boot Windows 7/ Windows 8 RTM/ Ubuntu”
Here's how to do it: Make sure it will not go beyond the 4 primary partitions, otherwise, your PC will not boot up. You can make extra partitions with the Gparted tool, but it will not aloww more than 4 primary partitions, (more extended parititions are allowed ) After making the sufficient space for Windows 8 then Install Windows 8 Now you notice that only Windows 7 and 8 are listed in Windows' boot loader Now you have two options: add Ubuntu in Windows' boot loader by using easyBCD [LINK] Reinstall grub 2 by with a live CD. to see video click here [this video] After this if your windows in not listed in grub 2 then type sudo update-grub2 Even if Windows is not listed retry after mounting your W
Recommends simplePerson43 · 2013-01 · Ask Ubuntu · on “Windows 7/8 and Ubuntu triple boot”
Make sure it will not go beyond the 4 primary partitions ; if so then your PC will not boot up. You can make extra partition with GParted--up to four primary partitions, or up to three primary partitions plus an extended partition that acts as a contained for logical partitions. This way you can effectively have more than four partitions. Make sure you have sufficient space for Windows 8. Install Windows 8. Now you notice that only Windows 7 and 8 are listed in Windows's boot loader. You have 2 option to make it so you can select Ubuntu when booting your machine: Add Ubuntu in windows boot loader by using easyBCD [LINK] . Reinstall GRUB 2 by live CD. For this watch this video [this video] . After
Recommends simplePerson43 · 2013-01 · Ask Ubuntu · on “Triple Boot: Windows 7, Ubuntu, and Debian”
yes it's possible you should install the windows 7 ,debian and in the last ubuntu . grub2 automatically detect the other os 1 - make sure it will not go beyond the 4 primary parition if it so then your pc will not boot up 2 - you can make extra partion by gparted tool but it will not more than 4 in case of primary partition while other extented parition is allowed 3 - after having the sufficient space for third linux distro install it grub2 automatically detect the other os . 4 - if any problem occur then reinstall grub2 of ubuntu here is the video [this video] 5 - now you are able to use all the three os installed in your pc if the other distro is not show in grub2 menu then you can updage ubunt
Recommends simplePerson43 · 2013-01 · Ask Ubuntu · on “What is the easiest and safest way to perform triple-boot?”
I have already installed Windows 7,Ubuntu 12.04 and Fedora 17 (triple boot) The easy way to do this: Make sure it will not go beyond the 4 primary partitions if it so then your PC will not boot up You can make extra partition by GParted tool but it will not more than 4 in case of primary partition while other extended partition is allowed After having the sufficient space for third Linux distribution, install it . Then, I re-install grub2 of Ubuntu Here is the video [this video] Now you are able to use all the three OS installed in your PC If the other distribution is not shown in grub2 menu then you can update Ubuntu grub2. See [LINK]
Recommends gaurav9 · 2013-09 · Ask Ubuntu · on “Installing Windows 8 alongside Ubuntu 13.04”
1.Make free space for Windows 8 2.format the free space with an NTFS filesystem using gparted 3.use WINUSB [LINK] tool to create windows 8 bootable usb(skip this if you have windows 8 DVD) 4.Windows 8 Installation will destroy the grub2 bootloader so you will not be able to boot into Ubuntu to solve that problem you have to reinstall grub using ubuntu live usb/dvd [this video]
Recommends Anake · 2014-04 · Ask Ubuntu · on “Ubuntu 14.04 new install on Dell laptop”
No you would just have installed GRUB in the wrong place. You can follow the straight forward instructions on how to fix it here: [this video] The basic gist is that you load into the live disk and reinstall grub in the correct place from there.
Recommends user341713 · 2014-10 · Ask Ubuntu · on “How to remove BURG and restore GRUB?”
If you have a USB drive that doesn't have any important data, I would recommend booting from an Ubuntu live system and reinstalling GRUB to your drive from there. Watch this video. [this video] to find out how to do that. It's a bit old but it is still for GRUB 2 so it should still work. I haven't tried it though, sorry.
Cites Elysium · 2013-07 · Ask Ubuntu · on “Can anyone tell me what I had to be careful with and how I can reinstall grub?”
I might install a 2nd linux system on my HD. I was told that I would have to reinstall grub to make the 2 system appear after I turn on my laptop. I also have widows installed...so it might get a bit messy. I have just watched this video: [this video] And it is really informative, but I need a proper walkthrough to understand how this grub thingy works. Can anyone redirect me to a video or webpage where someone explains this grub installation in case of secondary linux OS in details?
Cites Yatharth Agarwal · 2014-04 · Ask Ubuntu · on “Accidentally removed windows when dual booting (Ubuntu re-install wiped partitions)”
Manager Partitions Install GParted if necessary by running sudo apt-get install gparted ; Down-size your Ubuntu partition to create some free space; Create a new partition and format it as NTFS; Install Windows [LINK] from a Recovery Disk [LINK] Some computer manufacturers that pre-install Windows provide a Windows recovery/re-installation CD or DVD with the computer. However, many companies no longer ship a physical disc but instead create a hidden partition on the hard drive in which the recovery-disk information is stored. A utility is then usually provided which allows the user to burn a recovery/re-installation CD or DVD from it. If you are buying a new computer and intend on dual-booti
Cites Mathew Griffiths · 2014-11 · Ask Ubuntu · on “Problems installing and booting Ubuntu/Grub”
I want to install Ubuntu alongside Windows, with it being on an external hard drive. My windows installation is on an internal SSD. I've gone through the installation but I get this message toward the end of the installation when setting the boot device as the SSD or the EUFI petition Executing 'grub-install /dev/sda' failed. This is a fatal error. I am able to 'install' it fully when I set the boot device as the External hard drive, but it does not come in the boot devices in the bios. I know I am able boot from USB, as I did the installation from a live USB. I've also tried installing grub via terminal, using this video [this video] , but still no luck. Any suggestions?