[SOLVED] How to get grub straightened out for triple boot?

orrin5250 · 05-28-2020, 06:13 AM

I am only able to boot into Manjaro using the Advanced > "fallback initramfs" selection on grub menu.

Here are the essentials:

This is an Asus Zenbook 15 UX533FN laptop preinstalled with Windows 10 (BIOS boots in EFI mode)
I then installed Arch on a second partition with grub
All good booting Windows or Arch from grub menu
For testing purposes I have installed Manjaro on 3rd partition - during install I assigned a root (/) partition but left EFI partition unassigned
After reboot into Arch > ran sudo update-grub and /boot/grub/grub.cfg is listed below

Fallback Manjaro (initrd /boot/initramfs-5.6-x86_64-fallback.img) on the grub menu is the only Manjaro selection that boots. The primary Manjaro option goes to the BIOS splash screen and sits idle. (Is there a log to evaluate this?) Windows and Arch are booting fine.

Any thoughts on how to fix this? I would generally prefer to boot from the Arch grub as this will probably be my primary OS. I guess I am wondering if this is just something that requires some tweaks to the grub configuration or if there is some fundamental error with my Manjaro installation attempt / setup.

ARCH# cat /boot/grub/grub.cfg:

Code:

#
# 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 ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root  36f16651-079c-4bf3-8938-bacc1e8c43c9
else
  search --no-floppy --fs-uuid --set=root 36f16651-079c-4bf3-8938-bacc1e8c43c9
fi
    font="/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_US
  insmod gettext
fi
terminal_input console
terminal_output gfxterm
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
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-36f16651-079c-4bf3-8938-bacc1e8c43c9' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_gpt
        insmod fat
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  2668-FDA2
        else
          search --no-floppy --fs-uuid --set=root 2668-FDA2
        fi
        echo    'Loading Linux linux ...'
        linux   /vmlinuz-linux root=UUID=36f16651-079c-4bf3-8938-bacc1e8c43c9 rw  loglevel=3 quiet
        echo    'Loading initial ramdisk ...'
        initrd  /intel-ucode.img /initramfs-linux.img
}
submenu 'Advanced options for Arch Linux' $menuentry_id_option 'gnulinux-advanced-36f16651-079c-4bf3-8938-bacc1e8c43c9' {
        menuentry 'Arch Linux, with Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-36f16651-079c-4bf3-8938-bacc1e8c43c9' {
                load_video
                set gfxpayload=keep
                insmod gzio
                insmod part_gpt
                insmod fat
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  2668-FDA2
                else
                  search --no-floppy --fs-uuid --set=root 2668-FDA2
                fi
                echo    'Loading Linux linux ...'
                linux   /vmlinuz-linux root=UUID=36f16651-079c-4bf3-8938-bacc1e8c43c9 rw  loglevel=3 quiet
                echo    'Loading initial ramdisk ...'
                initrd  /intel-ucode.img /initramfs-linux.img
        }
        menuentry 'Arch Linux, with Linux linux (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-fallback-36f16651-079c-4bf3-8938-bacc1e8c43c9' {
                load_video
                set gfxpayload=keep
                insmod gzio
                insmod part_gpt
                insmod fat
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  2668-FDA2
                else
                  search --no-floppy --fs-uuid --set=root 2668-FDA2
                fi
                echo    'Loading Linux linux ...'
                linux   /vmlinuz-linux root=UUID=36f16651-079c-4bf3-8938-bacc1e8c43c9 rw  loglevel=3 quiet
                echo    'Loading initial ramdisk ...'
                initrd  /initramfs-linux-fallback.img
        }
}

### 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 'Windows Boot Manager (on /dev/nvme0n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-2668-FDA2' {
        insmod part_gpt
        insmod fat
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  2668-FDA2
        else
          search --no-floppy --fs-uuid --set=root 2668-FDA2
        fi
        chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Manjaro Linux (20.0.1) (on /dev/nvme0n1p5)' --class manjarolinux --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
        else
          search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
        fi
        linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
        initrd /boot/intel-ucode.img
}
submenu 'Advanced options for Manjaro Linux (20.0.1) (on /dev/nvme0n1p5)' $menuentry_id_option 'osprober-gnulinux-advanced-da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
        menuentry 'Manjaro Linux (on /dev/nvme0n1p5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-5.6-x86_64--da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
                insmod part_gpt
                insmod ext2
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
                else
                  search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
                fi
                linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
                initrd /boot/intel-ucode.img
        }
        menuentry 'Manjaro Linux (Kernel 5.6.11-1-MANJARO x64) (on /dev/nvme0n1p5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-5.6-x86_64--da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
                insmod part_gpt
                insmod ext2
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
                else
                  search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
                fi
                linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
                initrd /boot/intel-ucode.img
        }
        menuentry 'Manjaro Linux (Kernel 5.6.11-1-MANJARO x64 - fallback initramfs) (on /dev/nvme0n1p5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-5.6-x86_64--da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
                insmod part_gpt
                insmod ext2
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
                else
                  search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
                fi
                linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
                initrd /boot/initramfs-5.6-x86_64-fallback.img
        }
}

### 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.
### 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 ###

ARCH# sudo efibootmgr:

Code:

BootCurrent: 0002
Timeout: 2 seconds
BootOrder: 0002,0000
Boot0000* Windows Boot Manager
Boot0002* GRUB

Thanks for looking.

sxy · 05-28-2020, 11:46 AM

Hi,

From your grub.cfg

Code:

menuentry 'Manjaro Linux (20.0.1) (on /dev/nvme0n1p5)' --class manjarolinux --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
        insmod part_gpt
        insmod ext2
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
        else
          search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
        fi
        linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
        initrd /boot/intel-ucode.img
}
submenu 'Advanced options for Manjaro Linux (20.0.1) (on /dev/nvme0n1p5)' $menuentry_id_option 'osprober-gnulinux-advanced-da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
        menuentry 'Manjaro Linux (on /dev/nvme0n1p5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-5.6-x86_64--da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
                insmod part_gpt
                insmod ext2
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
                else
                  search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
                fi
                linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
                initrd /boot/intel-ucode.img
        }
        menuentry 'Manjaro Linux (Kernel 5.6.11-1-MANJARO x64) (on /dev/nvme0n1p5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-5.6-x86_64--da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
                insmod part_gpt
                insmod ext2
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
                else
                  search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
                fi
                linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
                initrd /boot/intel-ucode.img
        }
        menuentry 'Manjaro Linux (Kernel 5.6.11-1-MANJARO x64 - fallback initramfs) (on /dev/nvme0n1p5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-5.6-x86_64--da799e1d-73a2-487b-8f54-7c62fa30b8a5' {
                insmod part_gpt
                insmod ext2
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root  da799e1d-73a2-487b-8f54-7c62fa30b8a5
                else
                  search --no-floppy --fs-uuid --set=root da799e1d-73a2-487b-8f54-7c62fa30b8a5
                fi
                linux /boot/vmlinuz-5.6-x86_64 root=UUID=da799e1d-73a2-487b-8f54-7c62fa30b8a5 rw quiet udev.log_priority=3
                initrd /boot/initramfs-5.6-x86_64-fallback.img
        }
}

Bold lines have explained the reason why only the fallback entry works; real initrds from other entries are missing. Seems like a bug of os-prober, and you'll have to edit the grub.cfg file manually. Maybe you'll want to take a look at Microcode - ArchWiki.

orrin5250 · 05-29-2020, 07:29 AM

Thanks, this worked perfectly. I appended /boot/initramfs-5.6-x86_64.img to the initrd commands and all is good. It appears the microcode portion is working properly as well.