GRUB_DEFAULT=saved with GRUB_SAVEDEFAULT=true doesn't work here

[Ulf Zibis]

Hi,

I have:

/dev/sda9/etc/default/grub (( Ubuntu 18.04.4 ))
<=========================================================
[.....]
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true
GRUB_TIMEOUT=5
GRUB_TIMEOUT_STYLE=menu
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
[.....]
=========================================================>

Wether the "GRUB_DEFAULT=saved" nor "GRUB_TIMEOUT=5" comes in function.
After successfully executing the 1st grub.cfg, GRUB always starts the first 
menu of the 2nd grub.cfg and the timeout falls back to 30 seconds.

I have 2 chained config files:

/dev/sda1/boot/grub/grub.cfg (( Version 1 ))
<=========================================================
if loadfont /boot/grub/fonts/unicode.pf2 ; then
  loadfont /boot/grub/fonts/unicode.pf2
  set gfxmode="1920x1080"
  load_video
  insmod gfxterm
  insmod efi_gop
  insmod efi_uga
  terminal_output gfxterm
  if terminal_output gfxterm; then true ; else
    terminal gfxterm
  fi
fi

grub_gfxmode=1920x1080
grub_gfxpayload_linux=keep
gfxpayload=1920x1080x24,1920x1080
#insmod png
#background_image /boot-efi/grub/pict3.png

#set color_normal=light-gray/black
#set menu_color_normal=yellow/black
#set menu_color_highlight=red/black

timeout_style=menu
timeout=5

set default=4


menuentry "EFI-PC" { # Dummy Menü
    set-root=(hd0,gpt1) # ohne 'gültige' Zeile keine Anzeige
        rmmod tpm  # erforderlich für das Booten mittels loopback
}
menuentry "Stop" {
    halt
}

menuentry "Windows 8.1 auf /dev/sda4" {
    insmod part_gpt
    ## UUID von EFI-Partition /dev/sda1 :
    search --fs-uuid --set=root BC5C-B7DD
    chainloader /efi/microsoft/boot/bootmgfw.efi
}
menuentry "Menü von Ubuntu-64 20.04 auf /dev/sda7" {
    insmod part_gpt
    insmod ext2
    search --no-floppy --fs-uuid --set=root 82b4acde-4db6-48b0-9d00-a09fb995b330
    configfile /boot/grub/grub.cfg
}
menuentry "Menü von Ubuntu-32 18.04 auf /dev/sda9" {
    insmod part_gpt
    insmod ext2
    search --no-floppy --fs-uuid --set=root ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
    configfile /boot/grub/grub.cfg
}
menuentry "Menü von Ubuntu-64 16.04 auf /dev/sda11" {
    insmod part_gpt
    insmod ext2
    search --no-floppy --fs-uuid --set=root 944662da-df21-471e-b041-082090aaa22e
    configfile /boot/grub/grub.cfg
}
=========================================================>
/dev/sda9/boot/grub/grub.cfg (( created by "sudo update-grub" ))
<=========================================================
#
# 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="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${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}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env 
recordfail; 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 [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt9'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
else
  search --no-floppy --fs-uuid --set=root ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
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=de_DE
  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 ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
    set gfxpayload="${1}"
    if [ "${1}" = "keep" ]; then
        set vt_handoff=vt.handoff=1
    else
        set vt_handoff=
    fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os 
$menuentry_id_option 'gnulinux-simple-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
    recordfail
    savedefault
    load_video
    gfxmode $linux_gfx_mode
    insmod gzio
    if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt9'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
    else
      search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
    fi
        linux    /boot/vmlinuz-4.15.0-159-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro  quiet splash 
resume=UUID=b89855fb-dc4f-42fb-9ee0-053b7cb5c683 $vt_handoff
    initrd    /boot/initrd.img-4.15.0-159-generic
}
submenu 'Erweiterte Optionen für Ubuntu' $menuentry_id_option 
'gnulinux-advanced-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
    menuentry 'Ubuntu, mit Linux 4.15.0-159-generic' --class ubuntu --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-4.15.0-159-generic-advanced-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
        recordfail
    savedefault
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt9'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        else
          search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        fi
        echo    'Linux 4.15.0-159-generic wird geladen …'
            linux    /boot/vmlinuz-4.15.0-159-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro  quiet splash 
resume=UUID=b89855fb-dc4f-42fb-9ee0-053b7cb5c683 $vt_handoff
        echo    'Initiale Ramdisk wird geladen …'
        initrd    /boot/initrd.img-4.15.0-159-generic
    }
    menuentry 'Ubuntu, mit Linux 4.15.0-159-generic (recovery mode)' --class 
ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-4.15.0-159-generic-recovery-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt9'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        else
          search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        fi
        echo    'Linux 4.15.0-159-generic wird geladen …'
            linux    /boot/vmlinuz-4.15.0-159-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro recovery nomodeset 
dis_ucode_ldr
        echo    'Initiale Ramdisk wird geladen …'
        initrd    /boot/initrd.img-4.15.0-159-generic
    }
    menuentry 'Ubuntu, mit Linux 4.15.0-158-generic' --class ubuntu --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-4.15.0-158-generic-advanced-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
        recordfail
    savedefault
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt9'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        else
          search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        fi
        echo    'Linux 4.15.0-158-generic wird geladen …'
            linux    /boot/vmlinuz-4.15.0-158-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro  quiet splash 
resume=UUID=b89855fb-dc4f-42fb-9ee0-053b7cb5c683 $vt_handoff
        echo    'Initiale Ramdisk wird geladen …'
        initrd    /boot/initrd.img-4.15.0-158-generic
    }
    menuentry 'Ubuntu, mit Linux 4.15.0-158-generic (recovery mode)' --class 
ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-4.15.0-158-generic-recovery-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt9'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        else
          search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        fi
        echo    'Linux 4.15.0-158-generic wird geladen …'
            linux    /boot/vmlinuz-4.15.0-158-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro recovery nomodeset 
dis_ucode_ldr
        echo    'Initiale Ramdisk wird geladen …'
        initrd    /boot/initrd.img-4.15.0-158-generic
    }
    menuentry 'Ubuntu, mit Linux 4.15.0-29-generic' --class ubuntu --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-4.15.0-29-generic-advanced-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
        recordfail
    savedefault
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt9'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        else
          search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        fi
        echo    'Linux 4.15.0-29-generic wird geladen …'
            linux    /boot/vmlinuz-4.15.0-29-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro  quiet splash 
resume=UUID=b89855fb-dc4f-42fb-9ee0-053b7cb5c683 $vt_handoff
        echo    'Initiale Ramdisk wird geladen …'
        initrd    /boot/initrd.img-4.15.0-29-generic
    }
    menuentry 'Ubuntu, mit Linux 4.15.0-29-generic (recovery mode)' --class 
ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-4.15.0-29-generic-recovery-ec7ee724-6bed-4ee0-8056-8ecf44bb46b9' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt9'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 
--hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9  
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        else
          search --no-floppy --fs-uuid --set=root 
ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        fi
        echo    'Linux 4.15.0-29-generic wird geladen …'
            linux    /boot/vmlinuz-4.15.0-29-generic 
root=UUID=ec7ee724-6bed-4ee0-8056-8ecf44bb46b9 ro recovery nomodeset 
dis_ucode_ldr
        echo    'Initiale Ramdisk wird geladen …'
        initrd    /boot/initrd.img-4.15.0-29-generic
    }
}

### 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 ###
menuentry 'Windows Boot Manager (auf /dev/sda1)' --class windows --class os 
$menuentry_id_option 'osprober-efi-BC5C-B7DD' {
    savedefault
    insmod part_gpt
    insmod fat
    set root='hd0,gpt1'
    if [ x$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  BC5C-B7DD
    else
      search --no-floppy --fs-uuid --set=root BC5C-B7DD
    fi
    chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Ubuntu 16.04.7 LTS (16.04) (auf /dev/sda11)' --class ubuntu --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-simple-944662da-df21-471e-b041-082090aaa22e' {
    savedefault
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt11'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
    else
      search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
    fi
    linux /boot/vmlinuz-4.4.0-210-generic 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro quiet splash $vt_handoff
    initrd /boot/initrd.img-4.4.0-210-generic
}
submenu 'Erweiterte Optionen für Ubuntu 16.04.7 LTS (16.04) (auf /dev/sda11)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-944662da-df21-471e-b041-082090aaa22e' {
    menuentry 'Ubuntu (auf /dev/sda11)' --class gnu-linux --class gnu --class 
os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-210-generic--944662da-df21-471e-b041-082090aaa22e'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-210-generic 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro quiet splash $vt_handoff
        initrd /boot/initrd.img-4.4.0-210-generic
    }
    menuentry 'Ubuntu, mit Linux 4.4.0-210-generic (auf /dev/sda11)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-210-generic--944662da-df21-471e-b041-082090aaa22e'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-210-generic 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro quiet splash $vt_handoff
        initrd /boot/initrd.img-4.4.0-210-generic
    }
    menuentry 'Ubuntu, with Linux 4.4.0-210-generic (upstart) (auf /dev/sda11)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-210-generic--944662da-df21-471e-b041-082090aaa22e'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-210-generic 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro quiet splash $vt_handoff 
init=/sbin/upstart
        initrd /boot/initrd.img-4.4.0-210-generic
    }
    menuentry 'Ubuntu, with Linux 4.4.0-210-generic (recovery mode) (auf 
/dev/sda11)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-210-generic-root=UUID=944662da-df21-471e-b041-082090aaa22e
 ro recovery nomodeset-944662da-df21-471e-b041-082090aaa22e' {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-210-generic 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro recovery nomodeset
        initrd /boot/initrd.img-4.4.0-210-generic
    }
    menuentry 'Ubuntu, mit Linux 4.4.0-31-generic (auf /dev/sda11)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-31-generic.efi.signed--944662da-df21-471e-b041-082090aaa22e'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-31-generic.efi.signed 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro quiet splash $vt_handoff
        initrd /boot/initrd.img-4.4.0-31-generic
    }
    menuentry 'Ubuntu, with Linux 4.4.0-31-generic (upstart) (auf /dev/sda11)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-31-generic.efi.signed--944662da-df21-471e-b041-082090aaa22e'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-31-generic.efi.signed 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro quiet splash $vt_handoff 
init=/sbin/upstart
        initrd /boot/initrd.img-4.4.0-31-generic
    }
    menuentry 'Ubuntu, with Linux 4.4.0-31-generic (recovery mode) (auf 
/dev/sda11)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-4.4.0-31-generic.efi.signed-root=UUID=944662da-df21-471e-b041-082090aaa22e
 ro recovery nomodeset-944662da-df21-471e-b041-082090aaa22e' {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt11'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt11 
--hint-efi=hd0,gpt11 --hint-baremetal=ahci0,gpt11  
944662da-df21-471e-b041-082090aaa22e
        else
          search --no-floppy --fs-uuid --set=root 
944662da-df21-471e-b041-082090aaa22e
        fi
        linux /boot/vmlinuz-4.4.0-31-generic.efi.signed 
root=UUID=944662da-df21-471e-b041-082090aaa22e ro recovery nomodeset
        initrd /boot/initrd.img-4.4.0-31-generic
    }
}

menuentry 'Ubuntu 20.04.3 LTS (20.04) (auf /dev/sda7)' --class ubuntu --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-simple-82b4acde-4db6-48b0-9d00-a09fb995b330' {
    savedefault
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt7'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 
--hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7 
82b4acde-4db6-48b0-9d00-a09fb995b330
    else
      search --no-floppy --fs-uuid --set=root 
82b4acde-4db6-48b0-9d00-a09fb995b330
    fi
    linux /boot/vmlinuz-5.11.0-36-generic 
root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330 ro quiet splash $vt_handoff
    initrd /boot/initrd.img-5.11.0-36-generic
}
submenu 'Erweiterte Optionen für Ubuntu 20.04.3 LTS (20.04) (auf /dev/sda7)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-82b4acde-4db6-48b0-9d00-a09fb995b330' {
    menuentry 'Ubuntu (auf /dev/sda7)' --class gnu-linux --class gnu --class os 
$menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-5.11.0-36-generic--82b4acde-4db6-48b0-9d00-a09fb995b330'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt7'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 
--hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  
82b4acde-4db6-48b0-9d00-a09fb995b330
        else
          search --no-floppy --fs-uuid --set=root 
82b4acde-4db6-48b0-9d00-a09fb995b330
        fi
        linux /boot/vmlinuz-5.11.0-36-generic 
root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330 ro quiet splash $vt_handoff
        initrd /boot/initrd.img-5.11.0-36-generic
    }
    menuentry 'Ubuntu, mit Linux 5.11.0-36-generic (auf /dev/sda7)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-5.11.0-36-generic--82b4acde-4db6-48b0-9d00-a09fb995b330'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt7'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 
--hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  
82b4acde-4db6-48b0-9d00-a09fb995b330
        else
          search --no-floppy --fs-uuid --set=root 
82b4acde-4db6-48b0-9d00-a09fb995b330
        fi
        linux /boot/vmlinuz-5.11.0-36-generic 
root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330 ro quiet splash $vt_handoff
        initrd /boot/initrd.img-5.11.0-36-generic
    }
    menuentry 'Ubuntu, mit Linux 5.11.0-36-generic (recovery mode) (auf 
/dev/sda7)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-5.11.0-36-generic-root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330
 ro recovery nomodeset dis_ucode_ldr-82b4acde-4db6-48b0-9d00-a09fb995b330' {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt7'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 
--hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  
82b4acde-4db6-48b0-9d00-a09fb995b330
        else
          search --no-floppy --fs-uuid --set=root 
82b4acde-4db6-48b0-9d00-a09fb995b330
        fi
        linux /boot/vmlinuz-5.11.0-36-generic 
root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330 ro recovery nomodeset 
dis_ucode_ldr
        initrd /boot/initrd.img-5.11.0-36-generic
    }
    menuentry 'Ubuntu, mit Linux 5.8.0-59-generic (auf /dev/sda7)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-5.8.0-59-generic--82b4acde-4db6-48b0-9d00-a09fb995b330'
 {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt7'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 
--hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  
82b4acde-4db6-48b0-9d00-a09fb995b330
        else
          search --no-floppy --fs-uuid --set=root 
82b4acde-4db6-48b0-9d00-a09fb995b330
        fi
        linux /boot/vmlinuz-5.8.0-59-generic 
root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330 ro quiet splash $vt_handoff
        initrd /boot/initrd.img-5.8.0-59-generic
    }
    menuentry 'Ubuntu, mit Linux 5.8.0-59-generic (recovery mode) (auf 
/dev/sda7)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinuz-5.8.0-59-generic-root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330
 ro recovery nomodeset dis_ucode_ldr-82b4acde-4db6-48b0-9d00-a09fb995b330' {
        savedefault
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt7'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt7 
--hint-efi=hd0,gpt7 --hint-baremetal=ahci0,gpt7  
82b4acde-4db6-48b0-9d00-a09fb995b330
        else
          search --no-floppy --fs-uuid --set=root 
82b4acde-4db6-48b0-9d00-a09fb995b330
        fi
        linux /boot/vmlinuz-5.8.0-59-generic 
root=UUID=82b4acde-4db6-48b0-9d00-a09fb995b330 ro recovery nomodeset 
dis_ucode_ldr
        initrd /boot/initrd.img-5.8.0-59-generic
    }
}

set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### 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 ###
=========================================================>

Both are existant:
- /dev/sda1/boot/grub/grubenv
- /dev/sda9/boot/grub/grubenv

With the alternative below, at least "GRUB_TIMEOUT=5" works as expected, but 
"GRUB_DEFAULT=saved" never works.

/dev/sda1/boot/grub/grub.cfg (( Version 2 ))
<=========================================================
[.......]
menuentry "Menü von Ubuntu-32 18.04 auf /dev/sda9" {
    insmod part_gpt
    insmod ext2
    insmod configfile
    insmod test
    insmod loadenv
    insmod all_video
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
    insmod gettext
    insmod gzio
    insmod xzio
    insmod lzopio
    insmod linux
    insmod linuxefi
    search --no-floppy --fs-uuid --set=root ec7ee724-6bed-4ee0-8056-8ecf44bb46b9
        set prefix=($root)'/boot/grub'
        configfile $prefix/grub.cfg
    # configfile /boot/grub/grub.cfg
}
[.......]
=========================================================>

So I'm wondering, as grubenv now seems correctly found.

Does one have an idea, how to make "GRUB_DEFAULT=saved" working here?

Thanks in advance,
-Ulf