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Download (HTTP): <ulink url="&gcc-download-http;"/>
Download MD5 sum: &gcc-md5sum;
Download size: &gcc-size;
GRUB Dependencies
Recommended
<xref role="runtime" linkend="efibootmgr"/> (runtime) and <xref linkend="freetype2"/>
Optional
<xref linkend="lvm2"/>
User Notes: <ulink url="&blfs-wiki;/grub-efi"/>
Installation of GRUB
First, install font data as the <systemitem class="username">root</systemitem> user:
<userinput>mkdir -pv /usr/share/fonts/unifont &amp;&amp;
gunzip -c ../unifont-&unifont-version;.pcf.gz > /usr/share/fonts/unifont/unifont.pcf</userinput>
Unset any environment variables which may affect the build:
<userinput>unset {C,CPP,CXX,LD}FLAGS</userinput>
Don't try <quote>tuning</quote> this package with custom compilation flags: this package is a bootloader, with low-level operations in the source code which is likely to be broken by some aggressive optimizations.
Fix an issue causing <command>grub-install</command> to fail when the <filename class='directory'>/boot</filename> partition (or the root partition if <filename class='directory'>/boot</filename> is not a separate partition) is created by e2fsprogs-1.47.0 or later:
<userinput>patch -Np1 -i ../grub-&grub-version;-upstream_fixes-1.patch</userinput>
If you are running a 32-bit LFS, prepare a 64-bit compiler:
<userinput>case $(uname -m) in i?86 )
<literal>tar xf ../gcc-&gcc-version;.tar.xz
mkdir gcc-&gcc-version;/build
pushd gcc-&gcc-version;/build
../configure --prefix=$PWD/../../x86_64-gcc \
--target=x86_64-linux-gnu \
--with-system-zlib \
--enable-languages=c,c++ \
--with-ld=/usr/bin/ld
make all-gcc
make install-gcc
popd
export TARGET_CC=$PWD/x86_64-gcc/bin/x86_64-linux-gnu-gcc</literal>
esac</userinput>
Build <application>GRUB</application> with the following commands:
<userinput>./configure --prefix=/usr \
--sysconfdir=/etc \
--disable-efiemu \
--enable-grub-mkfont \
--with-platform=efi \
--target=x86_64 \
--disable-werror &amp;&amp;
unset TARGET_CC &amp;&amp;
make</userinput>
This package does not have a test suite providing meaningful results.
Now, as the <systemitem class="username">root</systemitem> user:
<userinput>make install &amp;&amp;
mv -v /etc/bash_completion.d/grub /usr/share/bash-completion/completions</userinput>
Command Explanations
<parameter>--enable-grub-mkfont</parameter>: Build the tool named <command>grub-mkfont</command> to generate the font file for the boot loader from the font data we've installed.
If the recommended dependency <xref linkend="freetype2"/> is not installed, it is possible to omit this option and build GRUB. However, if <command>grub-mkfont</command> is not built, or the unicode font data is not available at the time GRUB is built, GRUB won't install any font for the boot loader. The GRUB boot menu will be displayed using a coarse font and the early stage of kernel initialization will be in <quote>blind mode</quote> &mdash; you can't see any kernel messages before the graphics card driver is initialized. It will be very difficult to diagnose some boot issues, especially if the graphics driver is built as module.
<parameter>--with-platform=efi</parameter>: Ensures building GRUB with EFI enabled.
<parameter>--target=x86_64</parameter>: Ensures building GRUB for x86_64 even if building on a 32-bit LFS system. Most EFI firmwares on x86_64 does not support 32-bit bootloaders.
<option>--target=i386</option>: A few 32-bit x86 platforms have EFI support. And, some x86_64 platforms have a 32-bit EFI implementation, but they are very old and rare. Use this instead of <parameter>--target=x86_64</parameter> if you are <emphasis role='bold'>absolutely sure</emphasis> that LFS is running on such a system.
Configuring GRUB

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Source string added

  1. Beyond Linux From Scratch 11.3
  2. postlfs_filesystems_uefi-bootloaders_grub-efi
  3. English
Fix an issue causing <command>grub-install</command> to fail when the <filename class='directory'>/boot</filename> partition (or the root partition if <filename class='directory'>/boot</filename> is not a separate partition) is created by e2fsprogs-1.47.0 or later:
a year ago
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String information

Source string description
type: Content of: <sect1><sect2><para>
Flags
read-only
Source string location
blfs-en/postlfs/filesystems/uefi-bootloaders/grub-efi.xml:168
String age
a year ago
Last updated
10 months ago
Source string age
a year ago
Translation file
string 45