The technical details are a little more complex than what we had with GRUB Legacy and stage1 and stage2, but the idea is essentially identical. UEFI systems come with a small partition, usually around 200-300MB, formatted asįAT32. Thus working around any BIOS, filesystem and other limitations. The sensible compromise was to use a small /boot partition, formatted with the simplest filesystem available, Not support advanced boot features, and vice versa, bootloaders could not support specific filesystem types, so YouĬan treat it the way old /boot used to be, especially when dealing with LVM and such. Now, let's assume that we're not really quite sure what's happening. If Ubuntu is properly configured as an entry in the UEFIīoot section, then we just need to install the EFI-supported version of GRUB2. But in the coming years, this will become more of anīasically, we have three possible ways of doing this. I will demonstrate with Ubuntu, but the basic logic applies for most distributions,Īlthough few of them support UEFI natively at the moment. This is going to be a lengthy procedure, but it will work. Grub-install: error: will not proceed with blocklists. However, blocklists are UNRELIABLE and their use is discouraged. GRUB can only be installed in this setup by usingīlocklists. Grub-install: warning: Embedding is not possible. Grub-install: warning: this GPT partition label contains no BIOS Boot Partition embedding won't be Sudo grub-install -root-directory /mnt /dev/sda What you'll see is this, including double spacing and Instructions, and then fail, because they won't work. Now, to restore Ubuntu, you will need to boot into a live session, follow the You are booting in the UEFI mode, with or without Secure Boot enabled, and it worked flawlessly, until after Into the empty space left reserved for exactly this purpose, Then, I also added Windows 10 Technical Preview Hosted Windows 8.1, which comes preinstalled plus a bunch of hidden recovery partitions by the vendor, Ubuntu, Procedure that I've outlined in my GRUB2 guide is not working. Now, you're trying to recover/restore GRUB, but the standard Ubuntu or Mint happily installed on a machine, and then youĪdded Windows, which ruined the bootloader. This can happen if you've had a Linux distro, e.g. That said, you've probably reached this page because you have trouble recovering your GRUB If you're a newbie, you're better off reading my original tutorials on this topic first, before trying anything This guide will mostly be useful to people well familiar with the GRUB/GRUB bootloader, and Linux in general.
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