This repository contains files of my grub2 configuration with LibreELEC menu entires (manual config). It has special submenu for "advanced options" and "recovery" menu entries.
Example output (/boot/grub2/grub2.cnf):
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
set btrfs_relative_path="y"
export btrfs_relative_path
if [ -f ${config_directory}/grubenv ]; then
load_env -f ${config_directory}/grubenv
elif [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${env_block}" ] ; then
set env_block="(${root})${env_block}"
export env_block
load_env -f "${env_block}"
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
if [ "${env_block}" ] ; then
save_env -f "${env_block}" next_entry
fi
set boot_once=true
else
set default="${saved_entry}"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
if [ "${env_block}" ] ; then
save_env -f "${env_block}" saved_entry
else
save_env saved_entry
fi
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if loadfont unicode ; then
if [ "${grub_platform}" = "efi" ]; then
echo "Please press 't' to show the boot menu on this console"
fi
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
insmod part_gpt
insmod btrfs
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
else
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
fi
insmod gfxmenu
loadfont ($root)/grub2/themes/Vimix/dejavu_sans_12.pf2
loadfont ($root)/grub2/themes/Vimix/dejavu_sans_14.pf2
loadfont ($root)/grub2/themes/Vimix/dejavu_sans_16.pf2
loadfont ($root)/grub2/themes/Vimix/dejavu_sans_24.pf2
loadfont ($root)/grub2/themes/Vimix/dejavu_sans_48.pf2
loadfont ($root)/grub2/themes/Vimix/dejavu_32.pf2
loadfont ($root)/grub2/themes/Vimix/terminus-12.pf2
loadfont ($root)/grub2/themes/Vimix/terminus-14.pf2
loadfont ($root)/grub2/themes/Vimix/terminus-16.pf2
loadfont ($root)/grub2/themes/Vimix/terminus-18.pf2
insmod jpeg
insmod png
set theme=($root)/grub2/themes/Vimix/theme.txt
export theme
if [ x${boot_once} = xtrue ]; then
set timeout=0
elif [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=10
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=10
fi
if [ -n "$extra_cmdline" ]; then
menuentry "Help on bootable snapshot #$snapshot_num" {
echo "Select the default entry of the snapshot boot menu."
echo "Examine the snapshot, and if it's OK,"
echo " run 'snapper rollback' and reboot."
echo "See 'System Rollback by Booting from Snapshots'"
echo " in the manual for more information."
echo " ** Hit Any Key to return to boot menu ** "
read
}
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/00_tuned ###
set tuned_params=""
set tuned_initrd=""
### END /etc/grub.d/00_tuned ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'openSUSE Tumbleweed' --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-a5ed0bf0-33f8-4307-886b-be283c4db4b8' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod btrfs
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
else
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
fi
echo 'Loading Linux 5.8.2-1.g71b519a-default ...'
linuxefi /vmlinuz-5.8.2-1.g71b519a-default root=UUID=a5ed0bf0-33f8-4307-886b-be283c4db4b8 ${extra_cmdline} splash=silent resume=/dev/disk/by-label/openSUSE-Swap mitigations=auto quiet
echo 'Loading initial ramdisk ...'
initrdefi /initrd-5.8.2-1.g71b519a-default
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
# Windows
menuentry "Windows 10" --class windows --class os $menuentry_id_option 'osprober-efi-CE56-A237' {
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root CE56-A237
else
search --no-floppy --fs-uuid --set=root CE56-A237
fi
chainloader /efi/Microsoft/Boot/bootmgfw.efi
}
# LibreELEC
menuentry "LibreELEC" --class libreelec --class gnu-linux --class gnu --class os {
search --set=root --label LibreELEC-System
linux /KERNEL boot=LABEL=LibreELEC-System disk=LABEL=LibreELEC-Data quiet
}
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
### BEGIN /etc/grub.d/50_recovery ###
submenu 'Recovery options' --class recovery --hotkey=1 $menuentry_id_option 'gnulinux-advanced-a5ed0bf0-33f8-4307-886b-be283c4db4b8' {
menuentry 'LibreELEC (recovery mode)' --class libreelec --class gnu-linux --class gnu --class os {
search --set=root --label LibreELEC-System
linux /KERNEL boot=LABEL=LibreELEC-System disk=LibreELEC-Data debugging
}
menuentry 'openSUSE Tumbleweed, with Linux 5.8.2-1.g71b519a-default (advanced options)' --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.8.2-1.g71b519a-default-advanced-a5ed0bf0-33f8-4307-886b-be283c4db4b8' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod btrfs
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
else
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
fi
echo 'Loading Linux 5.8.2-1.g71b519a-default ...'
linuxefi /vmlinuz-5.8.2-1.g71b519a-default root=UUID=a5ed0bf0-33f8-4307-886b-be283c4db4b8 ${extra_cmdline} splash=silent resume=/dev/disk/by-label/openSUSE-Swap mitigations=auto quiet
echo 'Loading initial ramdisk ...'
initrdefi /initrd-5.8.2-1.g71b519a-default
}
menuentry 'openSUSE Tumbleweed, with Linux 5.8.2-1.g71b519a-default (recovery mode)' --hotkey=1 --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.8.2-1.g71b519a-default-recovery-a5ed0bf0-33f8-4307-886b-be283c4db4b8' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod btrfs
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
else
search --no-floppy --fs-uuid --set=root 6ea93d29-f18c-4561-a424-f2c6edcab3d5
fi
echo 'Loading Linux 5.8.2-1.g71b519a-default ...'
linuxefi /vmlinuz-5.8.2-1.g71b519a-default root=UUID=a5ed0bf0-33f8-4307-886b-be283c4db4b8 ${extra_cmdline}
echo 'Loading initial ramdisk ...'
initrdefi /initrd-5.8.2-1.g71b519a-default
}
menuentry 'Go back' --class cancel {
reboot
}
}
### END /etc/grub.d/50_recovery ###
### BEGIN /etc/grub.d/80_suse_btrfs_snapshot ###
btrfs-mount-subvol ($root) /.snapshots @/.snapshots
if [ -f "/.snapshots/grub-snapshot.cfg" ]; then
source "/.snapshots/grub-snapshot.cfg"
fi
### END /etc/grub.d/80_suse_btrfs_snapshot ###
### BEGIN /etc/grub.d/90_persistent ###
### END /etc/grub.d/90_persistent ###
### BEGIN /etc/grub.d/95_textmode ###
if [ "${grub_platform}" = "efi" ]; then
# On EFI systems we can only have graphics *or* serial, so allow the user
# to switch between the two
hiddenentry 'Text mode' --hotkey 't' {
set textmode=true
terminal_output console
}
fi
### END /etc/grub.d/95_textmode ###