3aec085410
Although the EFI specification enforces support for FAT ESP, it's free for EFI implementations to implement support for ESPs with other formats (e.g. ext4, ntfs, etc), and at least U-Boot EFI will support ext4 ESP if U-Boot is built with ext4 support. In some situations a GRUB installation on such a non-FAT ESP could be useful (e.g. a NTFS-based USB disk that can dual boot a Windows installation media and a Linux LiveCD). As this is advanced and implementation-dependent behavior, let grub-install allow this kind of installation, but only when --force is specified. Signed-off-by: Icenowy Zheng <uwu@icenowy.me> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'