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I'm glad to hear it!



The BIOS Boot Partition can be tiny. 32 KiB is sufficient, but a more common choice is 1 MiB, just because of partition sizing and alignment policies in modern disk...

You can get standard Windows 7 installation discs from the My Digital Life site. The claim is that these images are approved by Microsoft. A few caveats:



Not all languages are available --...

This one's really weird, and although I know a thing or two about GRUB, the infinite reboot symptom is quite peculiar. If you'd like to continue with this avenue and post another thread, that's fine....

That's not likely to be helpful, and depending on what you mean by "all partitions," it could be damaging. As a general rule, GRUB 2 works best when it's installed to the MBR. It can be installed to...

Actually, I just had an idea you might try:



Download and burn the Super GRUB 2 Disk.
Boot with the Super GRUB 2 Disk. It will give you a list of options to locate systems. You may need to...

I've heard of GRUB creating infinite loop problems like this before, but I don't know what the solution might be. I recommend you create a new thread with the Boot Info Script output, as complete a...

I'm afraid I began my last post before this one appeared, so some of what I posted is no longer relevant.

I recommend you use Linux's fdisk to set the boot/active flag on the 0xEE partition, as...

It's not necessary, but for a Linux-only installation it is, IMHO, preferable. GPT has several advantages over the older MBR system, including:



Support for over-2 TiB disks, which is not an...

Personally, yes, I would just delete the partition using gparted and be done with it. I highly doubt anyone is going to use specialized software to get at your files. But if you really feel you must...

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An installation with default options is not inconsistent with a UEFI installation. The installer will boot into either BIOS mode or UEFI mode depending on firmware capabilities, firmware...

One other thing: In addition to regular data backups, keeping a backup of your partition table will enable easier recover if a problem like this recurs. The type of sfdisk output you've used to edit...

This is a known problem with TestDisk. Some background (for Quaxo76; I expect you know this, YesWeCan): ~20 years ago, hard disks had a fixed number of cylinders, heads, and sectors, so disks'...

Boot the Ubuntu installer to its "try without installing" option, download the Boot Info Script, and run it. The result should be a file called RESULTS.txt. Post it here, either as an attachment or...

Yes.

I think oldfred is probably on the right track in thinking the system boots using UEFI, but I can't be positive of that. In addition to the pointers he provided, I can suggest:



Use gdisk or a...

OK, try this:



Ensure that your computer is connected to a network (you may need network access for this to work).
Boot using the Ubuntu installer in its "try Ubuntu without installing"...

I want to be sure you understand that simply launching gdisk on a disk and then exiting will do nothing; you've got to type "r" followed by "h", answer a bunch of questions, and then type "w" to...

What version of Ubuntu are you using? I recall a thread recently in which a person found that the support for disks with 4096-byte sectors was messed up in a slightly older version of Ubuntu (maybe...

Granted, but I find it hard to believe that Microsoft would deliberately cut itself off from easy sales to people who want to upgrade their computers. I could see this happening in a version or two,...

True, they use different boot styles. It's important to realize, though, that grub-pc supports GPT; GPT support is not limited to the grub-efi version of GRUB. I'm not sure if you could use a...

Since you say you "set aside" your original hard disk, you could see whether it uses an MBR or a GPT configuration. If it's GPT, then that means that Windows was installed to it in UEFI mode, and...

First, I think you're wrong in your assertion that Windows 8 won't boot with the secure boot feature disabled. In order to install and boot on existing computers, Windows 8 must be able to boot with...

OK, thanks. My last suggestion for how to proceed still stands, but the way you're booting Windows might explain why you can't install it in UEFI mode, since the supported methods for launching a...

That's not quite completely correct. Apple uses EFI 1.x (not UEFI, which is EFI 2.x) to boot. Macs do use GPT, though. GRUB 2 (which Ubuntu uses) does support GPT, but it works best when a BIOS Boot...

It's not clear to me what your current state is, but I recommend this:



Get the system to a state with Windows and Ubuntu both installed in BIOS mode. Presumably neither will be bootable, but...