How To Retrive Data From An Old Sata Drive
This tutorial will guide you on how to rescue, repair or reinstall a damaged Ubuntu machine which cannot exist booted due to the fact that the Grub2 boot loader has been compromised and cannot load the boot loader which transfers the control further to the Linux kernel. In all modernistic Linux operating systems GRUB is the default kick loader.
This procedure has been successfully tested on an Ubuntu xvi.04 server edition with the Grub kicking loader damaged. However, this tutorial will only cover Ubuntu server Chow rescue process, although the same procedure can exist successfully applied on any Ubuntu organisation or on the majority of Debian-based distributions.
Requirements
-
- Download Ubuntu Server Edition DVS ISO Image
You try to kick your Ubuntu server machine and y'all come across that the operating systems no longer starts-up and you discover that the kick loader program no longer works?
Typically, the GNU Grub minimal panel appears on your screen, as illustrated on the below screenshot. How can yous restore the Grub in Ubuntu?
In that location are a lot of methods in Linux that can be used to re-install a broken chow, some tin can involve the ability to work and restore the boot loader past using the Linux command line and others are fairly uncomplicated and implies booting the hardware with a Linux alive CD and using the GUI indications to repair the damaged boot loader.
Among the simplest methods, that can be used in Debian based distributions, especially on Ubuntu systems, is the method presented in this tutorial, which involves only booting the motorcar into the Ubuntu alive DVD ISO prototype.
The ISO image can be downloaded from the post-obit link: http://releases.ubuntu.com/
Reinstall Ubuntu Chow Boot Loader
one. After you've downloaded and burned the Ubuntu ISO image, or created a bootable USB stick, identify the bootable media into your appropriate machine drive, reboot the machine and instruct the BIOS to boot into Ubuntu live epitome.
two. On the first screen, choose the language and printing [Enter] primal to continue.
iii. On the next screen, press F6 function key in order to open the other options menu and select Expert mode option. Then, hit Escape cardinal to return to Kick Options line in editing mode, as illustrated in the beneath screenshots.
4. Adjacent, edit Ubuntu alive paradigm kicking options past using the keyboard arrows to movement the cursor just before the quiet cord and write the following sequence as illustrated in the below screenshot.
rescue/enable=truthful
5. After y'all've wrote the above argument, press [Enter] key to instruct the live ISO image to boot into rescue mode in order to Rescue a broken arrangement.
6. On the adjacent screen select the language you desire to perform the organization rescue and press [enter] cardinal to go along.
7. Next, select your appropriate location from the presented list and printing [enter] key to move further.
8. On the next series of screens, select your keyboard layout as illustrated in the below screenshots
9. After detecting your machine hardware, loading some additional components and configuring the network you volition be asked to setup your machine hostname. Because you're not installing the arrangement, just exit the system hostname as default and press [enter] to continue.
10. Next, based on the supplied concrete location the installer image volition observe your fourth dimension zone. This setup will accurately piece of work simply if your auto is connected to cyberspace.
However, it's unimportant if your time zone is not correctly detected, because you are not performing a organisation installation. Just press Yep to continue further.
11. On the side by side screen you'll be directly transferred into rescue mode. Here, you should choose your motorcar root file organization from the provided list. In example your installed organisation uses a logical volume manager to delimit partitions, information technology should be easy to find your root partition from the list by reviewing volume grouping names as illustrated in the below screenshot.
Otherwise, in case you're not certain which partition is used for the /(root) file organisation, you should try to probe each division until you find the root file arrangement. After selecting the root partition press [Enter] primal to continue.
12. In case your system has been installed with a separate /kicking partition, the installer will inquire y'all whether you want to mount the divide /kick partition. Select Yes and press [Enter] fundamental to continue.
thirteen. Next, y'all will be provided with Rescue operations menu. Hither, select the option to Reinstall the Grub boot loader and press [enter] key to continue.
fourteen. On the next screen, type your machine deejay device where the GRUB will be installed and press [Enter] to continue, equally shown in the beneath image.
Usually, you lot should install the kick loader on your get-go machine hd MBR, which is /dev/sda in most cases. The installation procedure of Grub will get-go equally soon every bit you hit the Enter central.
fifteen. Later on the alive system installs the Chow boot loader yous volition exist directed back to main rescue mode menu. The only thing left at present, later on you've successfully repaired your Grub, is to reboot the machine as shown in the below images.
Finally, eject the alive bootable media from the appropriate drive, reboot the machine and you lot should be able to boot into the installed operating arrangement. The first screen to announced should be installed operating system Grub menu, every bit illustrated in the below screenshot.
Manually Reinstall Ubuntu Grub Kicking Loader
14. However, if you like to manually reinstall the GRUB boot loader from Rescue operations card, follow all the steps presented in this tutorial until you accomplish betoken 13, where you lot make the following changes: instead of choosing the option to reinstall Grub boot loader, select the pick which says Execute a shell in /dev/(your_chosen_root_partition and press [Enter] key to go on.
15. On the next screen hit Keep by pressing [enter] key in order to open a shell in your root file system partition.
16. Afterwards the crush has been opened in the root file system, execute ls command as presented below in club to identify your automobile hd devices.
# ls /dev/sd*
After you lot've identified the correct hard disk drive device (usually the showtime disk should exist /dev/sda), issue the post-obit command to install the GRUB boot loader on the identified hard disk MBR.
# grub-install /dev/sda
After GRUB has been successfully installed leave the shell prompt by typing exit.
# exit
17. Afterward you've exited the shell prompt, you will exist returned to main rescue mode menu. Here, choose the option to reboot the organization, squirt the live bootable ISO image and your installed operating system should be booted without any issue.
That's all! With a minimal effort you've successfully rendered your Ubuntu machine the ability to boot the installed operating organization.
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How To Retrive Data From An Old Sata Drive,
Source: https://www.tecmint.com/rescue-repair-and-reinstall-grub-boot-loader-in-ubuntu/
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