4/6/2024 0 Comments Which is my efi partition![]() If you install a UEFI-compatible Linux distribution from scratch on a blank disk, it will create the necessary partitions, including the EFI boot partition. If you are creating a Linux-only system, this EFI partition is all you will need beyond the normal Linux partitions you choose to deal with (root, var, home, swap and such). Yeah, it can get a bit crowded and a bit messy in there. If you have Windows installed, there will also be /EFI/Boot/ and /EFI/Microsoft/, and depending on the OEM there may also be something like /EFI/ASUS/ or /EFI/HP/. (Windows puts a lot more cruft in this partition, and various OEMs add even more on top of that.) Some Linux distributions put nothing but a single GRUB executable image there most also put a 'shim' executable which enables UEFI secure boot and some also put a variety of other configuration and support files there. Exactly what is there depends on the specific operating system. This is a relatively small (100MB or so is enough) FAT partition where various boot files are stored. In order to boot a UEFI firmware system, there has to be an EFI boot partition on the disk. There are certainly other ways to configure UEFI multi-boot - this is simply the way that I have found most useful and reliable to do it. It is not intended to be a complete guide to Linux on UEFI firmware. It is a description of how I set up multi-boot for Linux systems, sometimes including Windows, using the GRUB bootloader. Let's start by clearly stating what this post is, and what it isn't. ![]()
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