Debian I had destroyed grub

Thank You.
I did it.

Again Black Screen.

Could Rescatux help?

Probably not. You are able to boot the system with an older kernel not with a newer kernel or so it seems.

Take some pictures as the system scrolls through to the panic to catch a picture of a few more lines before the last lines seen on the screen, there may be something there that may help that is not showing when the scrolling stops

Thank You for help.

I tried:

https://ibb.co/P1yLH0xnnn


https://ibb.co/b2CpHQb

https://ibb.co/PQGpZ3X

First URL ist just before crash
Second: Logo appears then crash.
Third: "after" the crash.


Maybe I shall borrow from neighbour a better digicam.

Originally Posted by beginstart https://ibb.co/P1yLH0

This one has inadequate focus to be useful.

https://ibb.co/b2CpHQb

Useless.

https://ibb.co/PQGpZ3X

Too little information from this. You might try booting the default stanza after appending acpi=off or acpi=noirq instead of nomodeset to Grub's linu line.

Too little information from this. You might try booting the default stanza after appending acpi=off or acpi=noirq instead of nomodeset to Grub's linu line

Where or when shall I give this tasks?

Shall I interrupt with "e".
Then change a line?
Then film it with a digicam?

PIC 1 is Debian going down.
Pic 2 is the logo.
Logo appeared then at once crash.
Pic 3 is the only output
after seeing the logo.

Originally Posted by beginstart Where ... shall I give this tasks? Shall I interrupt with "e". Then change a line?

Yes, just like explained many times here.

Then film it with a digicam?

Only after you're sure nothing added to or removed from or edited on the Grub linu line has helped anything. IOW, try these changes first. If nothing helps, try filming a default boot without changing anything, but start filming after making the Grub selection effective and then striking the ESC key.

"AT the grub menu press e for edit, add this to the end of the linux line:"

Im sorry for my stupid asking.

I think I do change the line with
linux at the begin.

I restarted the computer and in the menu with recovery mode I pressed e
then appears the
getparams Debian GNU/Linux

there ist the line beginning with linux and at the end there is ro quiet
but I couldn't find the word nomodeset.

So I replaced the words ro quiet with first
acpi=off

then with F10 reboot

but still there came kernel panic.


I then tried the other version
acpi=noirq

but also only came kernel panic.

Thank You

Please get file /boot/grub/grub.cfg from your PC and attach it to a reply for us to examine.

Thank You for help.

​
#
# 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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
else
  search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
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=50
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=50
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
else
  search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
fi
insmod png
if background_image /usr/share/desktop-base/homeworld-theme/grub/grub-4x3.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 $menuentry_id_option 'gnulinux-simple-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
    load_video
    insmod gzio
    if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
    else
      search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
    fi
    echo    'Loading Linux 5.10.0-28-686-pae ...'
    linux    /boot/vmlinuz-5.10.0-28-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro  quiet
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-5.10.0-28-686-pae
}
submenu 'Advanced options for Debian GNU/Linux' $menuentry_id_option 'gnulinux-advanced-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
    menuentry 'Debian GNU/Linux, with Linux 5.10.0-28-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-28-686-pae-advanced-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        else
          search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        fi
        echo    'Loading Linux 5.10.0-28-686-pae ...'
        linux    /boot/vmlinuz-5.10.0-28-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro  quiet
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-5.10.0-28-686-pae
    }
    menuentry 'Debian GNU/Linux, with Linux 5.10.0-28-686-pae (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-28-686-pae-recovery-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        else
          search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        fi
        echo    'Loading Linux 5.10.0-28-686-pae ...'
        linux    /boot/vmlinuz-5.10.0-28-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro single 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-5.10.0-28-686-pae
    }
    menuentry 'Debian GNU/Linux, with Linux 5.10.0-27-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-27-686-pae-advanced-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        else
          search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        fi
        echo    'Loading Linux 5.10.0-27-686-pae ...'
        linux    /boot/vmlinuz-5.10.0-27-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro  quiet
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-5.10.0-27-686-pae
    }
    menuentry 'Debian GNU/Linux, with Linux 5.10.0-27-686-pae (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.10.0-27-686-pae-recovery-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        else
          search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        fi
        echo    'Loading Linux 5.10.0-27-686-pae ...'
        linux    /boot/vmlinuz-5.10.0-27-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro single 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-5.10.0-27-686-pae
    }
    menuentry 'Debian GNU/Linux, with Linux 4.9.0-18-686-pae' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.9.0-18-686-pae-advanced-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        else
          search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        fi
        echo    'Loading Linux 4.9.0-18-686-pae ...'
        linux    /boot/vmlinuz-4.9.0-18-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro  quiet
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-4.9.0-18-686-pae
    }
    menuentry 'Debian GNU/Linux, with Linux 4.9.0-18-686-pae (recovery mode)' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.9.0-18-686-pae-recovery-f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc' {
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'  f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        else
          search --no-floppy --fs-uuid --set=root f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc
        fi
        echo    'Loading Linux 4.9.0-18-686-pae ...'
        linux    /boot/vmlinuz-4.9.0-18-686-pae root=UUID=f0295e7e-ea3f-42c4-bef6-e7df6ef9d9bc ro single 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-4.9.0-18-686-pae
    }
}

### 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 ###
### 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 ###

Will any of the grub 5.10 menu entries boot without a panic?

Debian GNU/Linux, with Linux 5.10.0-28-686-pae
panic

Debian GNU/Linux, with Linux 5.10.0-28-686-pae (recovery mode)
panic

Debian GNU/Linux, with Linux 5.10.0-27-686-pae
panic

Debian GNU/Linux, with Linux 5.10.0-27-686-pae (recovery mode)
panic

Debian GNU/Linux, with Linux 4.9.0-18-686-pae
panic

Debian GNU/Linux, with Linux 4.9.0-18-686-pae (recovery mode)
no panic

Thank You

Originally Posted by beginstart Debian GNU/Linux, with Linux 5.10.0-28-686-pae

Try again booting this one, but instead of first removing "quiet" from its linu line using E to enter the Grub boot menu, before proceeding, replace "quiet" with "1", then proceed using F10 or Ctrl-X. Does it again panic?