[FIXED BY pyte!]mount: /var/lib/grub/esp: special device /dev/sda15 does not exist.

It seams to work
How can test it works??

 

So that sounds about right then. This was a bit confusing, so sorry about that. You are running a software raid and the partition label is dos and not gpt. The installer of ubuntu was booted in uefi mode initially and installed grub-efi which is not correct for your setup.

You can post the output of the following commands and i can check if you want to

Code:

ls /boot/grub
ls /boot

cat /boot/grub/grub.cfg

 

Code:

root@skytower ~ # ls /boot/grub
fonts  gfxblacklist.txt  grub.cfg  grubenv  i386-pc  locale  unicode.pf2  x86_64-efi
root@skytower ~ #

Code:

root@skytower ~ # ls /boot
config-5.15.0-50-generic  efi   initrd.img                    initrd.img-5.15.0-52-generic  lost+found                    System.map-5.15.0-52-generic  vmlinuz-5.15.0-50-generic  vmlinuz.old
config-5.15.0-52-generic  grub  initrd.img-5.15.0-50-generic  initrd.img.old                System.map-5.15.0-50-generic  vmlinuz                       vmlinuz-5.15.0-52-generic
root@skytower ~ #

Code:

cat /boot/grub/grub.cfg
#
# 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="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 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="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  # GRUB lacks write support for diskfilter, so recordfail support is disabled.
}
function load_video {
  if [ x$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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod part_msdos
insmod diskfilter
insmod mdraid1x
insmod ext2
set root='mduuid/daea028a05b06c871083745f97338231'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint='mduuid/daea028a05b06c871083745f97338231'  8e61a7e7-5565-4901-b602-c8c39e0ff680
else
  search --no-floppy --fs-uuid --set=root 8e61a7e7-5565-4901-b602-c8c39e0ff680
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_DK
  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=0
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 0 ; then
    set timeout=0
  fi
fi
if [ $grub_platform = efi ]; then
  set timeout=30
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
  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=7
        else
                set vt_handoff=
        fi
}
set linux_gfx_mode=text
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-8e61a7e7-5565-4901-b602-c8c39e0ff680' {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod part_msdos
        insmod diskfilter
        insmod mdraid1x
        insmod ext2
        set root='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'  de31220f-816e-41d9-b7ff-826ea87348fe
        else
          search --no-floppy --fs-uuid --set=root de31220f-816e-41d9-b7ff-826ea87348fe
        fi
        linux   /vmlinuz-5.15.0-52-generic root=UUID=8e61a7e7-5565-4901-b602-c8c39e0ff680 ro  nomodeset consoleblank=0
        initrd  /initrd.img-5.15.0-52-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-8e61a7e7-5565-4901-b602-c8c39e0ff680' {
        menuentry 'Ubuntu, with Linux 5.15.0-52-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-52-generic-advanced-8e61a7e7-5565-4901-b602-c8c39e0ff680' {
                recordfail
                gfxmode $linux_gfx_mode
                insmod gzio
                if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
                insmod part_msdos
                insmod part_msdos
                insmod diskfilter
                insmod mdraid1x
                insmod ext2
                set root='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'  de31220f-816e-41d9-b7ff-826ea87348fe
                else
                  search --no-floppy --fs-uuid --set=root de31220f-816e-41d9-b7ff-826ea87348fe
                fi
                echo    'Loading Linux 5.15.0-52-generic ...'
                linux   /vmlinuz-5.15.0-52-generic root=UUID=8e61a7e7-5565-4901-b602-c8c39e0ff680 ro  nomodeset consoleblank=0
                echo    'Loading initial ramdisk ...'
                initrd  /initrd.img-5.15.0-52-generic
        }
        menuentry 'Ubuntu, with Linux 5.15.0-52-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-52-generic-recovery-8e61a7e7-5565-4901-b602-c8c39e0ff680' {
                recordfail
                insmod gzio
                if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
                insmod part_msdos
                insmod part_msdos
                insmod diskfilter
                insmod mdraid1x
                insmod ext2
                set root='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'  de31220f-816e-41d9-b7ff-826ea87348fe
                else
                  search --no-floppy --fs-uuid --set=root de31220f-816e-41d9-b7ff-826ea87348fe
                fi
                echo    'Loading Linux 5.15.0-52-generic ...'
                linux   /vmlinuz-5.15.0-52-generic root=UUID=8e61a7e7-5565-4901-b602-c8c39e0ff680 ro recovery nomodeset dis_ucode_ldr
                echo    'Loading initial ramdisk ...'
                initrd  /initrd.img-5.15.0-52-generic
        }
        menuentry 'Ubuntu, with Linux 5.15.0-50-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-50-generic-advanced-8e61a7e7-5565-4901-b602-c8c39e0ff680' {
                recordfail
                gfxmode $linux_gfx_mode
                insmod gzio
                if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
                insmod part_msdos
                insmod part_msdos
                insmod diskfilter
                insmod mdraid1x
                insmod ext2
                set root='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'  de31220f-816e-41d9-b7ff-826ea87348fe
                else
                  search --no-floppy --fs-uuid --set=root de31220f-816e-41d9-b7ff-826ea87348fe
                fi
                echo    'Loading Linux 5.15.0-50-generic ...'
                linux   /vmlinuz-5.15.0-50-generic root=UUID=8e61a7e7-5565-4901-b602-c8c39e0ff680 ro  nomodeset consoleblank=0
                echo    'Loading initial ramdisk ...'
                initrd  /initrd.img-5.15.0-50-generic
        }
        menuentry 'Ubuntu, with Linux 5.15.0-50-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-50-generic-recovery-8e61a7e7-5565-4901-b602-c8c39e0ff680' {
                recordfail
                insmod gzio
                if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
                insmod part_msdos
                insmod part_msdos
                insmod diskfilter
                insmod mdraid1x
                insmod ext2
                set root='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root --hint='mduuid/bb6ae9f21c6e0c7a405168dad5741eda'  de31220f-816e-41d9-b7ff-826ea87348fe
                else
                  search --no-floppy --fs-uuid --set=root de31220f-816e-41d9-b7ff-826ea87348fe
                fi
                echo    'Loading Linux 5.15.0-50-generic ...'
                linux   /vmlinuz-5.15.0-50-generic root=UUID=8e61a7e7-5565-4901-b602-c8c39e0ff680 ro recovery nomodeset dis_ucode_ldr
                echo    'Loading initial ramdisk ...'
                initrd  /initrd.img-5.15.0-50-generic
        }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
### 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/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 ###
root@skytower ~ #

 

Looks allright to me.

If you can afford downtime, you can reboot the server now and see if it boots fine. However be aware that in case anything goes wrong, the downtime might be longer and make sure you either have physical access to the machine or some kind of remote console if this is a server at a different location.

 

Hi..
Here I update... I have rebooted my server and all works. - Thank you so much for the big help you provided...
Please send your PayPal ADR, in PM, and I will give you a bear for big help!

 

Great to hear this! But you don't too pay me

 

OK. Again! Thanks a lot for your enormous help and time!

 

Hey everyone,
Thanks pyte and Taxick, I'm having trouble with a very similar configuration also on my server. Although I've avoided executing the first command posted by Taxick (as I know removing grub is potentially quite dangerous).
In my case, seeing as `shim-signed` is still installed, I get the following issue when doing `apt autoremove --purge grub-efi`:

Code:

# apt autoremove --purge grub-efi-amd64-signed
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 shim-signed : Depends: grub-efi-amd64-signed but it is not going to be installed or
                        grub-efi-arm64-signed but it is not installable
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

Is it safe to assume, that because the disks are DOS/non-EFI, that pruning shim-signed is a safe operation to do?
Thanks!

 

If you are not booting in EFI mode it is safe to remove the shim-signed(former shim) package form your system. I assume you will get some scary warning from apt while doing this, but as long as you are 100% sure you don't boot in EFI mode you can ignore it.

 

I have a similar problem, also with Ubuntu 22.04. There is no separate /boot partition. Not sure if I can safely remove shim-signed or not.

 

Please don't hijack other threads and create your own in the future, you can reference other threads there aswell.
However it seems like there is something wrong with your configuration:

Code:

mount: /var/lib/grub/esp: special device /dev/sda15 does not exist.

Could you please post the content of your /etc/fstab file?

 

I was not trying to hijack the thread - I've posted here on purpose after seeing identical error in the thread (and, the same operating system used - Ubuntu 22.04, using software RAID, recent thread):

I don't have /dev/sda15 on my system, just as the OP (and I never had that partition/device) - and assumed this is the same "bug" I'm hitting. Please forgive me if you think it's hijacking the thread.


The contents of /etc/fstab:

 

It's all good, i'm not a fan of doing this, as this notifies every other user that was activ on the thread before, but no worries it's ok i guess.

So kinda a weird setup going on here, a RAID-1 over 4 disks. But yea i should be the same steps as i suggested earlier in the thread.
Install grub-pc package and install grub again to make sure:

Code:

apt-get install grub-pc
grub-install /dev/sda
update-grub /dev/sda

After regenerating the config you should be safe to remove the package you don't need. If you want to be able to boot of each disk you have to do this step for each drive sda sdb sdbc sdd.
Make sure that the commands worked correctly before you then remove the packages you don't need with these commands:

Code:

apt autoremove --purge grub-efi-am64-signed
apt autoremove --purge grub-efi-amd64-bin
apt autoremove --purge grub-efi

 

Yes, I've tried these, but these commands don't work for me.
grub packages installed on this system:

Even though the package exists, apt says it does not (maybe because it's not properly installed):

Same for two other packages:

dpkg shows there were no changes:

 

So it seems I'm blocked on shim-signed package, which is an essential package.

This worked without errors - just not sure if the system will boot afterwards

 

I'll pretty sure your system uses legacy boot as the partion has the bios_grub flag but you can make sure with this:

Code:

ls /sys/firmware/efi

If this return "No such file or directory" you are not using efi boot and don't need the grub-efi packages at all. And rebooting should be fine, however please make sure you have either physical access or some sort of remote KVM available.

 

/sys/firmware/efi did not exist.
It did boot indeed, thanks for your help!

 

Great! No worries