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Asked: 2024-09-27T05:58:31+05:30 In:

I’m encountering a “no operating system found” error with code 1962 after I installed Ubuntu 12.04 on my Lenovo ThinkCentre. Can anyone provide insights or solutions to fix this issue?

I’ve been having a bit of a frustrating time with my Lenovo ThinkCentre after trying to install Ubuntu 12.04. I was super excited to switch over from Windows, and everything seemed to be going fine until the installation was complete. Now, when I try to boot up the computer, I get hit with this “no operating system found” error message that has the code 1962. Honestly, I feel a bit lost here and could really use some help!

So, here’s what I did: I started the installation process and followed the steps like a good little user. I made sure to wipe the hard drive since I wanted Ubuntu to be the only operating system on the machine. The installation went relatively smoothly; I saw the “Installation complete” message pop up, and I thought I would be good to go. But nope! Upon restarting, it does its usual checks, and then it just throws this error at me like a giant “Ha! Gotcha!” I can’t even get into the live session anymore without dealing with this error.

I’ve tried things like making sure the BIOS settings are correct and that the boot order is set to the hard drive, but nothing seems to work. I’ve also unplugged any USB devices and peripherals, thinking there might be a conflict, but that didn’t help either.

Has anyone else run into this issue before? I really want to get Ubuntu up and running, but I feel like I’m missing something here. Is it possible I did something wrong during the installation, or is this a common issue that people have encountered? If anyone has any tips or solutions that might help me get past this 1962 error, I’d greatly appreciate your input! Thanks!

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    2 Answers


    1. It sounds like you’re experiencing a common issue that can occur during the installation of Ubuntu, particularly when the bootloader has not been properly installed or configured. One potential solution you could try is to boot from a live USB or CD of Ubuntu again. This allows you to access the terminal and attempt to reinstall the GRUB bootloader, which is responsible for starting the operating system. Once you’ve booted into the live session, open a terminal and use the commands sudo fdisk -l to identify the correct partition where Ubuntu is installed, then mount that partition using sudo mount /dev/sdXY /mnt (replace sdXY with your partition). After that, you can install GRUB using sudo grub-install --root-directory=/mnt /dev/sdX (replace sdX with the drive, not partition).

      If that doesn’t resolve the issue, double-check your BIOS settings once again, making sure that secure boot is disabled (if applicable) and that the boot mode is set to the correct one (UEFI or Legacy, depending on how you installed Ubuntu). It’s important to ensure that the hard drive is recognized properly in the BIOS as well. Sometimes using the efibootmgr tool within a live session can help to check and modify boot entries. If the problem persists after these steps, consider reviewing the integrity of your installation media to ensure there was no corruption during the installation process. Additionally, reaching out to Ubuntu forums or communities for more targeted assistance can often yield helpful tips from users who have faced similar situations.




    2. Lenovo ThinkCentre Ubuntu Issue


      Help with Ubuntu Installation on Lenovo ThinkCentre

      It sounds super frustrating to be stuck like this! The “no operating system found” error with code 1962 usually means that the BIOS can’t find the bootloader for Ubuntu. Here are a few things you can try:

      1. Double-check your BIOS settings:
    - Make sure that the hard drive is set as the first boot device.
    - Look for options related to UEFI/Legacy mode. If UEFI is enabled, try switching to Legacy mode, or vice versa.

2. Boot from a live USB:
    - If you have a live USB ready, try booting from it again. You might need to change the boot order in BIOS to prioritize USB first.

3. Repair the GRUB bootloader:
    - Once in the live session, open a terminal and run these commands to reinstall GRUB:
        sudo mount /dev/sda1 /mnt
        sudo grub-install --boot-directory=/mnt/boot /dev/sda
        sudo update-grub
    - Replace `/dev/sda1` with your actual root partition if it's different.

4. Check disk health:
    - Sometimes, an issue with the hard drive can cause this error. If you can access the terminal, you can run:
        sudo fsck /dev/sda1
    - This checks for and tries to fix filesystem issues.

5. Reinstall Ubuntu:
    - If none of this works, maybe there was a glitch during installation. Consider doing it again, but pay extra attention to the partitioning part. Ensure you’re marking it as “ext4” and setting the mount point as `/`.

Just remember, it might take a couple of tries, so don't give up! Good luck!


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