>On 19 Feb 2024 22:44 +0100, from borde...@tutanota.com (Borden):
>>> Would you be willing to post your /boot/grub/grub.cfg for a setup
>>> where you get the blank screen GRUB?
>>
>> Yeah, I probably should have opened with that. Sorry:
>>
>> ```
>> # If you change this file, run 'update-grub' afterwards to update
>> # /boot/grub/grub.cfg.
>> # For full documentation of the options in this file, see:
>> # info -f grub -n 'Simple configuration'
>>
>> GRUB_DEFAULT=0
>[snipped remainder]
>
>If that's your /boot/grub/grub.cfg, it's a miracle that your GRUB
>installation is working at all and not dumping you to a grub> rescue
>prompt.
Right you are. I forget that there's a /boot/grub/grub.cfg file because I
always edit /etc/default/grub . This is what you're looking for, I hope:
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${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}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
font="/@rootfs/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_CA
insmod gettext
fi
terminal_input gfxterm
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=5
fi
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
insmod png
if background_image
/@rootfs/usr/share/desktop-base/emerald-theme/grub/grub-16x9.png; then
set color_normal=white/black
set color_highlight=black/white
else
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/06_dark_theme ###
set menu_color_normal=white/black
set menu_color_highlight=yellow/black
set color_normal=white/black
set color_highlight=yellow/black
background_image
### END /etc/grub.d/06_dark_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
}
set linux_gfx_mode=
export linux_gfx_mode
menuentry 'Debian GNU/Linux' --class debian --class gnu-linux --class gnu
--class os $menuentry_id_option 'gnulinux-simple-#Redacted UUID#' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
echo 'Loading Linux 6.6.15-amd64 ...'
linux /@rootfs/boot/vmlinuz-6.6.15-amd64 root=UUID=#Redacted UUID# ro
rootflags=subvol=@rootfs
echo 'Loading initial ramdisk ...'
initrd /@rootfs/boot/initrd.img-6.6.15-amd64
}
submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option
'gnulinux-advanced-#Redacted UUID#' {
menuentry 'Debian GNU/Linux, with Linux 6.6.15-amd64' --class debian --class
gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.6.15-amd64-advanced-#Redacted UUID#' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
echo 'Loading Linux 6.6.15-amd64 ...'
linux /@rootfs/boot/vmlinuz-6.6.15-amd64 root=UUID=#Redacted UUID# ro
rootflags=subvol=@rootfs
echo 'Loading initial ramdisk ...'
initrd /@rootfs/boot/initrd.img-6.6.15-amd64
}
menuentry 'Debian GNU/Linux, with Linux 6.6.15-amd64 (recovery mode)' --class
debian --class gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.6.15-amd64-recovery-#Redacted UUID#' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
echo 'Loading Linux 6.6.15-amd64 ...'
linux /@rootfs/boot/vmlinuz-6.6.15-amd64 root=UUID=#Redacted UUID# ro single
single dis_ucode_ldr rootflags=subvol=@rootfs
echo 'Loading initial ramdisk ...'
initrd /@rootfs/boot/initrd.img-6.6.15-amd64
}
menuentry 'Debian GNU/Linux, with Linux 6.6.13-amd64' --class debian --class
gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.6.13-amd64-advanced-#Redacted UUID#' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
echo 'Loading Linux 6.6.13-amd64 ...'
linux /@rootfs/boot/vmlinuz-6.6.13-amd64 root=UUID=#Redacted UUID# ro
rootflags=subvol=@rootfs
echo 'Loading initial ramdisk ...'
initrd /@rootfs/boot/initrd.img-6.6.13-amd64
}
menuentry 'Debian GNU/Linux, with Linux 6.6.13-amd64 (recovery mode)' --class
debian --class gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.6.13-amd64-recovery-#Redacted UUID#' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
echo 'Loading Linux 6.6.13-amd64 ...'
linux /@rootfs/boot/vmlinuz-6.6.13-amd64 root=UUID=#Redacted UUID# ro single
single dis_ucode_ldr rootflags=subvol=@rootfs
echo 'Loading initial ramdisk ...'
initrd /@rootfs/boot/initrd.img-6.6.13-amd64
}
}
### 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+ ###
menuentry "Memory test (memtest86+x64.efi)" --class memtest
$menuentry_id_option 'memtest86+' {
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
linux /@rootfs/boot/memtest86+x64.efi
}
menuentry 'Memory test (memtest86+x64.efi, serial console)' --class memtest
$menuentry_id_option 'memtest86+-serial' {
insmod part_gpt
insmod btrfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2
--hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
linux /@rootfs/boot/memtest86+x64.efi console=ttyS0,115200
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/25_bli ###
if [ "$grub_platform" = "efi" ]; then
insmod bli
fi
### END /etc/grub.d/25_bli ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda1)' --class windows --class os
$menuentry_id_option 'osprober-efi-#Redacted UUID#' {
insmod part_gpt
insmod fat
set root='hd0,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1
--hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 #Redacted UUID#
else
search --no-floppy --fs-uuid --set=root #Redacted UUID#
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
if [ "$grub_platform" = "efi" ]; then
fwsetup --is-supported
if [ "$?" = 0 ]; then
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
fi
fi
### END /etc/grub.d/30_uefi-firmware ###
### BEGIN /etc/grub.d/35_fwupd ###
### END /etc/grub.d/35_fwupd ###
### 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.
### 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 ###
