(re-SOLVED) Linux Mint 21 GRUB edit question - don't know how to set up grub menu

[Kris345]

Simply edit /boot/grub/grub.cfg

Easy.
Done.

[Pjotr]

Simply edit /boot/grub/grub.cfg

Easy.
Done.

Yeah, for now. After the next Grub update (e.g. new kernel or new Grub), you can start all over again.

[Kris345]

Simply edit /boot/grub/grub.cfg

Easy.
Done.

Yeah, for now. After the next Grub update (e.g. new kernel or new Grub), you can start all over again.

AH but I finally realized that "starting all over again" simply means a 30 second edit and done.

[Neophyte]

I never had an issue with just doing a (mostly) clean reinstall, just making sure to not overwrite or format "/home."

[Pjotr]

AH but I finally realized that "starting all over again" simply means a 30 second edit and done.

No doubt that must have been a happy moment.

[Kris345]

You got that right! Wish somebody had told me that straight-off!

[SMG]

Simply edit /boot/grub/grub.cfg

Easy.
Done.

The one that says this at the top?

Code: Select all

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

I'm just teasing. Your situation is different because of grub customizer.

I responded to someone who could not figure out why their grub changes weren't being used. The reason ended up being they changed this file instead of /etc/default/grub. (They were not using Grub Customizer.)

[Kris345]

Simply edit /boot/grub/grub.cfg

Easy.
Done.

The one that says this at the top?

Code: Select all

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

I'm just teasing. Your situation is different because of grub customizer.

I responded to someone who could not figure out why their grub changes weren't being used. The reason ended up being they changed this file instead of /etc/default/grub. (They were not using Grub Customizer.)

LOL - however, it does not hold past the next boot, so, apparently, Mint does a mini update-grub on each boot.

Also,
sudo grub-install /dev/nvme0n1
sudo update-grub

changes nothing. no way that I can find that clears that old stuff from the proxies. Oh well!

[SMG]

LOL - however, it does not hold past the next boot, so, apparently, Mint does a mini update-grub on each boot.

The text does say that file is auto-generated. Apparently, it is true.

[Kris345]

To protect itself from people like me. I wonder what script it uses.

[Kris345]

The script is apparently
/etc/grub.d.proxifiedScripts/custom

If I change the first entry in there (named ubuntu) to the latest kern, It boots to that and survives through boot.

However, /boot/grub/grub.cfg looks terrible: says 46,46,46,43 etc. HOWEVER, when I boot, menu looks correct...

Code: Select all

#
# 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 $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${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 initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${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
search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
    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_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=6
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 6 ; then
    set timeout=0
  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/06_linux_proxy ###

function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if [ ${grub_platform} != pc ]; then
      set linux_gfx_mode=keep
    elif 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



### END /etc/grub.d/06_linux_proxy ###

### BEGIN /etc/grub.d/35_fwupd ###
### END /etc/grub.d/35_fwupd ###

### BEGIN /etc/grub.d/40_custom_proxy ###
menuentry "Ubuntu" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		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
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.15.0-46-generic ...'
		linux	/boot/vmlinuz-5.15.0-46-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.15.0-46-generic
}
### END /etc/grub.d/40_custom_proxy ###

### BEGIN /etc/grub.d/41_linux_proxy ###
submenu "Advanced options for Ubuntu"{
menuentry "Ubuntu, with Linux 5.15.0-46-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-46-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		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
		search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		echo	'Loading Linux 5.15.0-46-generic ...'
		linux	/boot/vmlinuz-5.15.0-46-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.15.0-46-generic
}
menuentry "Ubuntu, with Linux 5.15.0-46-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-46-generic-recovery-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		echo	'Loading Linux 5.15.0-46-generic ...'
		linux	/boot/vmlinuz-5.15.0-46-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro recovery nomodeset dis_ucode_ldr 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.15.0-46-generic
}
menuentry "Ubuntu, with Linux 5.15.0-43-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-43-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		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
		search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		echo	'Loading Linux 5.15.0-43-generic ...'
		linux	/boot/vmlinuz-5.15.0-43-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.15.0-43-generic
}
menuentry "Ubuntu, with Linux 5.15.0-43-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-43-generic-recovery-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		echo	'Loading Linux 5.15.0-43-generic ...'
		linux	/boot/vmlinuz-5.15.0-43-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro recovery nomodeset dis_ucode_ldr 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.15.0-43-generic
}
menuentry "Ubuntu, with Linux 5.4.0-122-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-122-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		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
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.4.0-122-generic ...'
		linux	/boot/vmlinuz-5.4.0-122-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-122-generic
}
menuentry "Ubuntu, with Linux 5.4.0-99-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-99-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		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
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.4.0-99-generic ...'
		linux	/boot/vmlinuz-5.4.0-99-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-99-generic
}
menuentry "Ubuntu, with Linux 5.4.0-97-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-97-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.4.0-97-generic ...'
		linux	/boot/vmlinuz-5.4.0-97-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-97-generic
}
menuentry "Ubuntu, with Linux 5.4.0-96-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-96-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.4.0-96-generic ...'
		linux	/boot/vmlinuz-5.4.0-96-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-96-generic
}
menuentry "Ubuntu, with Linux 5.4.0-94-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-94-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.4.0-94-generic ...'
		linux	/boot/vmlinuz-5.4.0-94-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-94-generic
}
menuentry "Ubuntu, with Linux 5.4.0-92-generic" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-92-generic-advanced-b9acad1f-1759-4bbd-9e24-63d1e3abbb47' {
		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
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root  b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		else
		  search --no-floppy --fs-uuid --set=root b9acad1f-1759-4bbd-9e24-63d1e3abbb47
		fi
		echo	'Loading Linux 5.4.0-92-generic ...'
		linux	/boot/vmlinuz-5.4.0-92-generic root=UUID=b9acad1f-1759-4bbd-9e24-63d1e3abbb47 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-92-generic
}
}
### END /etc/grub.d/41_linux_proxy ###

### BEGIN /etc/grub.d/42_linux_zfs ###
### END /etc/grub.d/42_linux_zfs ###

### BEGIN /etc/grub.d/43_linux_xen ###

### END /etc/grub.d/43_linux_xen ###

### BEGIN /etc/grub.d/44_os-prober ###
menuentry 'Windows Boot Manager (on /dev/nvme0n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-D8D1-F36E' {
	savedefault
	insmod part_gpt
	insmod fat
	search --no-floppy --fs-uuid --set=root D8D1-F36E
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/44_os-prober ###

### BEGIN /etc/grub.d/45_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/45_uefi-firmware ###

### BEGIN /etc/grub.d/46_custom_proxy ###

# 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/46_custom_proxy ###

### BEGIN /etc/grub.d/47_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/47_custom ###

-
I wonder what will happen on the next kern update? But, again, this is disgustingly simple to do if I have to each time (I did with grub-customizer).

[SMG]

The script is apparently
/etc/grub.d.proxifiedScripts/custom

That sounds like something Grub Customizer might have added to your system? Or else it is new in LM21. I do not have that directory in LM20.3.

[Kris345]

which begs the question what happens if I delete it and run update-grub ...

I'll play with that tomorrow - proxies 06,40,41,46 all have pointers to it (I LOVE "search content" in Files app)

Actually, I think the house of cards will fall if I remove it so I will leave it and wait to see what happens with next kern update.

Yes, I think that and proxies were created by grub-customizer.

[JerryF]

Yes, the proxies were created by Grub Customizer. I experimented with it in the past and after finding that my Grub menu wouldn't show the latest kernel after a reboot, I uninstalled Grub Customizer. Unfortunately, that wasn't enough. The pervasive files were still there and in charge of Grub. I ended up backing up all my important user files and did a reinstall of the OS. After that, I never looked back.

[Kris345]

Yes, I believe that is correct from what I have seen - it would take a clean install to get it to the point where it would auto-update that first menu item.

And yes every kern update I had to run grub-customizer and manually update the first menu item.

So, now, if this holds, I change 3 lines in the custom file for every kern update. Trivial.

i will do a new install at some point but Mint (so far) appears to have made life too easy on this upgrade, so I won't for now. Later.....

[Neophyte]

I use grub customizer. For something like 19.1 to 19.2, I just do an upgrade. For something like 19.x to 20.x I do a clean install. Just keep your files on a separate drive/partition.

[Pjotr]

i will do a new install at some point

I recommend to bite the bullet and just do a clean fresh install of Mint 21. And from then on, give the bloody pest called grub-customizer a wide berth....

[JerryF]

With the default Grub, most of the customization can be done by editing the /etc/default/grub file and adding lines to that then running sudo update-grub

There are tutorials out there but I don't have them bookmarked.

[Kris345]

i will do a new install at some point

I recommend to bite the bullet and just do a clean fresh install of Mint 21. And from then on, give the bloody pest called grub-customizer a wide berth....

done. pita, but done.