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Have you tried

GRUB_GFXMODE=text

in /etc/default/grub?

I had the same symptom of extremely bad performance, as if something was taking 95% of the CPU, after upgrading to 16.04. It seems to be caused by the nouveau driver in Linux 4.4. Installing the...

It's definitely not intentional since it doesn't benefit Windows in any way (it's not using the space). In fact, Win10 didn't even mess with the MBR, so to that extent it plays better than some...

Well, photorec didn't recover anything from the Linux partitions. So it really was 100% erased. This was with the just-released version of Windows 10 (November/10586), so it's probably a Windows...

It's not odd, it just confirms that the actual partitions (as opposed to the partition table) have been destroyed. Again, all I did was to "upgrade" from Windows 8.1 to Windows 10. In the future I'll...

I did try running e2fsck, but as expected, that didn't work. I don't know what you mean by "made the Linux partitions unrecognisable".

I have a horrifying theory. The disk was an SSD. Maybe Windows did a "TRIM" which considered the Linux partitions as empty space. If so, it's really hopeless.

I tried deleting the Linux partitions and then scanning the empty space with testdisk, thinking that maybe Windows "moved" the partitions. Result: nothing found. It really seems like Windows wiped...

boot-repair info:

http://paste.ubuntu.com/13402345

You mean grub? No, it's still there. It goes into grub rescue.



There are 4 partitions, two Windows (originally there was one; Windows 10 created a new recovery partition) and two Linux (main...

This is really a Windows 10 problem, so I beg your indulgence.

I "upgraded" to Windows 10 and now my Linux partitions seem to be corrupted - they aren't recognized as ext4. I've read about Windows...

Invisible cursor has nothing to do with the mouse. It's strictly a graphics issue. Normally the cursor is handled by dedicated hardware, which explains how it can mess up (due to a driver bug)...

Note that by default, linux uses swap even if you have plenty of memory. You can change this behavior by setting "swappiness" to 0, but if you don't have a swap partition, then you don't have to...

I'm curious, 60Hz as opposed to what? Usually people have the problem of getting 60Hz when they want something else.

Rant reply:
Video cards are very complex. AMD and Nvidia have huge teams of...

Use fixparts to get rid of the leftover GPT table.

I remembered that Windows installs itself as the default EFI boot manager (efi/boot/bootx64.efi), and yet your BIOS failed to boot it. So step (3) won't work. Instead, you have to copy rEFInd to...

Damn, your BIOS is really unfriendly. At least now with rEFInd, you should have the ability to boot into Windows (I assume you don't have it installed at the moment). This should work:
1. Install...

In the row of small icons, there should be an "i" for information (please select this - it gives EFI and firmware version information, good to know), as well as icons for shut down, reboot, and...

I think you need to enter BIOS setup to make progress.



No. You aren't trying to install rEFInd on your hard drive, you just want to boot it from USB and use it to enter BIOS setup, that's all.

Try rEFInd, it has an option to enter BIOS setup:

http://www.rodsbooks.com/refind/getting.html

This might not work if you can only boot in "secure" mode (but give it a try). In that case you...

And it says "grub 2.02~beta2"?

So were you able to enter the BIOS setup using my last suggestion?

Have you tried Plop Boot Manager? It allows you to boot from USB even if the BIOS doesn't support it.

http://www.plop.at/en/bootmanagers.html

Your problem isn't clear to me. What is "detecting" your USB? Is the problem that your BIOS won't let you boot from USB? What are you trying to put on the USB - the ubuntu installer, or ubuntu...

You have to install the 32-bit versions the libraries, e.g.:
sudo apt-get install xxx:i386

where xxx is the missing library.