New answers tagged mbr
DANGER, WILL ROBINSON! DANGER! Your partitioning data is suspicious, and might indicate an extremely dangerous configuration. I can't be sure of that, but if my suspicions are correct, you could easily trash the whole disk the next time you try to make any changes to the partition table -- or maybe even just in normal use. To figure out what's going on, ...
First boot on your Windows Vista/7/8 installation DVD. If you have one of the many OEM computers that didn't come with a Windows installation disk, you can get the same effect with a Windows repair disk, which you can download (eg Win7-32bit, Win7 64bit) or create from another Windows Vista/7/8 computer. When you get to the Regional settings, select your ...
As an alternative to sgdisk or gdisk, you can use fixparts. Given your disk's configuration, it should safely remove the leftover GPT data, with less risk of damage because of a typo or other user error. Even if you use sgdisk -z inappropriately (say, using an uppercase -Z rather than the lowercase -z), it won't completely erase the disk, just the partition ...
I've been in a similar situation before and used this tutorial to resolve the issue: https://www.linux.com/learn/tutorials/776643-how-to-rescue-a-non-booting-grub-2-on-linux/ If an encrypted install of Ubuntu was done, I don't think the filesystem can be found.
You can't do what you want with GRUB, but you can do it in at least two other ways, at least with most UEFI-based computers: You can use your firmware's built-in boot manager. Typically, you access this via a function key early in the boot process. It should present options to boot whatever EFI-mode boot programs you've installed (such as GRUB, probably ...
As far as I know, no. While you can use MBR-partitioned disks within UEFI, you cannot use BIOS (MBR) format bootloaders, as they expect to run in a mostly "fresh" system, not inside the UEFI-prepared environment. So GRUB.efi doesn't even attempt to start one; it expects you to give an .efi path only.
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