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Kalamalka Kid
Asked: 2016-06-12 14:26:50 +0800 CST

boot repair disk not loading - boots into black screen

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I am trying to fix a grub issue issue using the boot repair disk that I created with UNetbootin. I do this by plugging in the bootable disk into the computer, booting into BIOS, and setting the USB drive as the primary boot device. I have successfully done this many times in the past with this disk.Since it seemed to not be working, I formatted the USB and created another bootable Boot Repair Disk.

Upon booting from BIOS from the USB stick I am confronted with the primary grub loader for Boot Disk which gives the option to edit the launch settings for Boot Repair disk. Hitting enter simply yielded a black screen, so I rebooted and this time edited the launch options with -nomodeset, but it never reaches the GUI environment.(It started to load once but never made it fully into the GUI).

I also downloaded Super Grub 2 Disk but could not get that working either as it seemed to get stuck in a boot loop. (there was only one launch option in the launch options which was 'DEFAULT', and when I select that the boot countdown recommences and it stays like that in a loop forever until I shut down or reboot)

I am running a 64 bit installation of Ubuntu 14.04 on a dual boot machine with Windows7 that boots primarily with Windows Loader. I then launch my Ubuntu from a Grub4Dos that is launched by the Windows loader.

Hardware setup is a GeForce GTX 970 graphics card, Intel i5-6500 processor, GIGABYTE Z170N-GAMING 5 MOtherboard running F4 BIOS, with 16 GIGS of DDR4 Ram

I am confused as to why this wont work. I have used this awwesome tool on many machines without fail. I desperately need this utility as it is an integral tool for fixing boot options.

boot-repair

2 Answers

  1. Best Answer

    NVIDIA GEFORCE GTX 970 is a quite new graphics adapter, which often has compatibility issues with the open source nouveau drivers. Boot from the USB drive - once the GRUB menu appears, press the E key and add the parameter nouveau.modeset=0 instead of nomodeset. Now you should be able to boot properly into the boot-repair-disk environment. The same method is valid for successfully booting other Linux based distributions and most of the Linux installation media.

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  2. I misread your post and had a walkthrough on fixing the USB volume. I'm sorry, this was a gross error on my part.

    You can fix a boot volume all you want, but you'll never fix a PHYSICALLY BAD DISK.

    From an ubuntu installer disk, run repair mode. It shouldn't take you to a GUI, you should be left at a prompt.

    I believe this disk has fdisk and badblocks, which are the two programs you need to verify the disk you're attempting to repair.

    From the root prompt run

    sudo fdisk -l

    and provide us the output.

    Also, if you can easily identify which drive you're attempting to repair run...

    sudo badblocks /dev/[devicename]

    Device name should look something like "sda" or "nvme0" or "hda".

    Please provide that output as well.

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