OS prober fails when the target OS has a separate boot partition and
multiple initrd images.
I have both Debian and Manjaro installed on my laptop. When using
Debian's update-grub, I get a grub.cfg with a wrong path for Manjaro's
initramfs.
It should be:
linux /vmlinuz ...
initrd /intel-ucode.img /initramfs-6.4-x86_64.img
but instead I get:
linux /vmlinuz ...
initrd /intel-ucode.img */boot*/initramfs-6.4-x86_64.img
(whole grub.cfg attached)
Upon looking at grub.d/30_os-prober.in (line #226), it appears the
script only removes the first occurrence of /boot, so the next image has
a wrong path.
(util/grub.d/30_os-prober.in #226)
LINITRD="${LINITRD#/boot}"
Suggestion, something like:
LINITRD="$(echo "$LINITRD" | sed -re 's+(^| )/boot+\1+g')"
Kind regards,
Aeron Draxar
#
# 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 ext2
search --no-floppy --fs-uuid --set=root bdcca85a-5101-4780-a1fc-6f1a00a42b3e
font="/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
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 ext2
search --no-floppy --fs-uuid --set=root bdcca85a-5101-4780-a1fc-6f1a00a42b3e
insmod png
if background_image /grub/.background_cache.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/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 $menuentry_id_option
'gnulinux-simple-a57c7a4d-b209-4007-af40-d33b8b66eb42' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
bdcca85a-5101-4780-a1fc-6f1a00a42b3e
echo 'Loading Linux 6.3.0-1-amd64 ...'
linux /vmlinuz-6.3.0-1-amd64 root=/dev/mapper/meissa-debian ro quiet
splash loglevel=3
echo 'Loading initial ramdisk ...'
initrd /initrd.img-6.3.0-1-amd64
}
submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option
'gnulinux-advanced-a57c7a4d-b209-4007-af40-d33b8b66eb42' {
menuentry 'Debian GNU/Linux, with Linux 6.3.0-1-amd64' --class debian
--class gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.3.0-1-amd64-advanced-a57c7a4d-b209-4007-af40-d33b8b66eb42' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio;
fi
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
bdcca85a-5101-4780-a1fc-6f1a00a42b3e
echo 'Loading Linux 6.3.0-1-amd64 ...'
linux /vmlinuz-6.3.0-1-amd64 root=/dev/mapper/meissa-debian
ro quiet splash loglevel=3
echo 'Loading initial ramdisk ...'
initrd /initrd.img-6.3.0-1-amd64
}
menuentry 'Debian GNU/Linux, with Linux 6.3.0-1-amd64 (recovery mode)'
--class debian --class gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.3.0-1-amd64-recovery-a57c7a4d-b209-4007-af40-d33b8b66eb42' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio;
fi
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
bdcca85a-5101-4780-a1fc-6f1a00a42b3e
echo 'Loading Linux 6.3.0-1-amd64 ...'
linux /vmlinuz-6.3.0-1-amd64 root=/dev/mapper/meissa-debian
ro single
echo 'Loading initial ramdisk ...'
initrd /initrd.img-6.3.0-1-amd64
}
menuentry 'Debian GNU/Linux, with Linux 6.1.0-10-amd64' --class debian
--class gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.1.0-10-amd64-advanced-a57c7a4d-b209-4007-af40-d33b8b66eb42' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio;
fi
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
bdcca85a-5101-4780-a1fc-6f1a00a42b3e
echo 'Loading Linux 6.1.0-10-amd64 ...'
linux /vmlinuz-6.1.0-10-amd64 root=/dev/mapper/meissa-debian
ro quiet splash loglevel=3
echo 'Loading initial ramdisk ...'
initrd /initrd.img-6.1.0-10-amd64
}
menuentry 'Debian GNU/Linux, with Linux 6.1.0-10-amd64 (recovery mode)'
--class debian --class gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-6.1.0-10-amd64-recovery-a57c7a4d-b209-4007-af40-d33b8b66eb42' {
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio;
fi
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
bdcca85a-5101-4780-a1fc-6f1a00a42b3e
echo 'Loading Linux 6.1.0-10-amd64 ...'
linux /vmlinuz-6.1.0-10-amd64 root=/dev/mapper/meissa-debian
ro single
echo 'Loading initial ramdisk ...'
initrd /initrd.img-6.1.0-10-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/30_os-prober ###
menuentry 'Manjaro Linux (23.0.0) (on /dev/mapper/meissa-root)' --class
manjarolinux --class gnu-linux --class gnu --class os $menuentry_id_option
'osprober-gnulinux-simple-092b5612-0f36-484c-aff5-ff8e023bc3ad' {
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
972e1815-893d-4b73-bce9-1b736539b4f0
linux /vmlinuz-6.4-x86_64 root=/dev/mapper/meissa-root rw
cryptdevice=UUID=1f9530e0-c897-41ee-941c-aebc26fa3f20:cryptlvm fbcon=nodefer
splash quiet udev.log_priority=3
initrd /intel-ucode.img /boot/initramfs-6.4-x86_64.img
}
submenu 'Advanced options for Manjaro Linux (23.0.0) (on
/dev/mapper/meissa-root)' $menuentry_id_option
'osprober-gnulinux-advanced-092b5612-0f36-484c-aff5-ff8e023bc3ad' {
menuentry 'Manjaro Linux (on /dev/mapper/meissa-root)' --class
gnu-linux --class gnu --class os $menuentry_id_option
'osprober-gnulinux-/vmlinuz-6.4-x86_64--092b5612-0f36-484c-aff5-ff8e023bc3ad' {
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
972e1815-893d-4b73-bce9-1b736539b4f0
linux /vmlinuz-6.4-x86_64 root=/dev/mapper/meissa-root rw
cryptdevice=UUID=1f9530e0-c897-41ee-941c-aebc26fa3f20:cryptlvm fbcon=nodefer
splash quiet udev.log_priority=3
initrd /intel-ucode.img /boot/initramfs-6.4-x86_64.img
}
menuentry 'Manjaro Linux (Kernel 6.4.2-3-MANJARO x64) (on
/dev/mapper/meissa-root)' --class gnu-linux --class gnu --class os
$menuentry_id_option
'osprober-gnulinux-/vmlinuz-6.4-x86_64--092b5612-0f36-484c-aff5-ff8e023bc3ad' {
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
972e1815-893d-4b73-bce9-1b736539b4f0
linux /vmlinuz-6.4-x86_64 root=/dev/mapper/meissa-root rw
cryptdevice=UUID=1f9530e0-c897-41ee-941c-aebc26fa3f20:cryptlvm fbcon=nodefer
splash quiet udev.log_priority=3
initrd /intel-ucode.img /boot/initramfs-6.4-x86_64.img
}
menuentry 'Manjaro Linux (Kernel 6.1.38-1-MANJARO x64) (on
/dev/mapper/meissa-root)' --class gnu-linux --class gnu --class os
$menuentry_id_option
'osprober-gnulinux-/vmlinuz-6.1-x86_64--092b5612-0f36-484c-aff5-ff8e023bc3ad' {
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root
972e1815-893d-4b73-bce9-1b736539b4f0
linux /vmlinuz-6.1-x86_64 root=/dev/mapper/meissa-root rw
cryptdevice=UUID=1f9530e0-c897-41ee-941c-aebc26fa3f20:cryptlvm fbcon=nodefer
splash quiet udev.log_priority=3
initrd /intel-ucode.img /boot/initramfs-6.1-x86_64.img
}
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
### 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 ###
