update-grub syntax error

[firekage]

firekage@deusex:~$ grub-script-check -v /boot/grub/grub.cfg.new 
#
# 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
set default="0"

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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
else
  search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
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=pl_PL
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### 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
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd1,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
    else
      search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
    fi
    linux    /boot/vmlinuz-3.5.0-26-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee  quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.5.0-26-generic
}
submenu 'Opcje zaawansowane dla systemu Ubuntu' $menuentry_id_option 'gnulinux-advanced-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    menuentry 'Ubuntu, za pomocą systemu Linux 3.5.0-26-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-26-generic-advanced-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
        else
          search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
        fi
        echo    'Wczytywanie systemu Linux 3.5.0-26-generic...'
        linux    /boot/vmlinuz-3.5.0-26-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee  quiet splash $vt_handoff
        echo    'Wczytywanie początkowego dysku RAM...'
        initrd    /boot/initrd.img-3.5.0-26-generic
    }
    menuentry 'Ubuntu, za pomocą systemu Linux 3.5.0-26-generic (tryb ratunkowy)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-26-generic-recovery-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    recordfail
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
        else
          search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
        fi
        echo    'Wczytywanie systemu Linux 3.5.0-26-generic...'
        linux    /boot/vmlinuz-3.5.0-26-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro recovery nomodeset resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
        echo    'Wczytywanie początkowego dysku RAM...'
        initrd    /boot/initrd.img-3.5.0-26-generic
    }
    menuentry 'Ubuntu, za pomocą systemu Linux 3.5.0-25-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-25-generic-advanced-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
        else
          search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
        fi
        echo    'Wczytywanie systemu Linux 3.5.0-25-generic...'
        linux    /boot/vmlinuz-3.5.0-25-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee  quiet splash $vt_handoff
        echo    'Wczytywanie początkowego dysku RAM...'
        initrd    /boot/initrd.img-3.5.0-25-generic
    }
    menuentry 'Ubuntu, za pomocą systemu Linux 3.5.0-25-generic (tryb ratunkowy)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-25-generic-recovery-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    recordfail
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
        else
          search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
        fi
        echo    'Wczytywanie systemu Linux 3.5.0-25-generic...'
        linux    /boot/vmlinuz-3.5.0-25-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro recovery nomodeset resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
        echo    'Wczytywanie początkowego dysku RAM...'
        initrd    /boot/initrd.img-3.5.0-25-generic
    }
    menuentry 'Ubuntu, za pomocą systemu Linux 3.5.0-24-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-24-generic-advanced-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
        else
          search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
        fi
        echo    'Wczytywanie systemu Linux 3.5.0-24-generic...'
        linux    /boot/vmlinuz-3.5.0-24-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee  quiet splash $vt_handoff
        echo    'Wczytywanie początkowego dysku RAM...'
        initrd    /boot/initrd.img-3.5.0-24-generic
    }
    menuentry 'Ubuntu, za pomocą systemu Linux 3.5.0-24-generic (tryb ratunkowy)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.0-24-generic-recovery-149ac71c-7444-48aa-bc0c-9fb07bccf74c' {
    recordfail
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd1,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
        else
          search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
        fi
        echo    'Wczytywanie systemu Linux 3.5.0-24-generic...'
        linux    /boot/vmlinuz-3.5.0-24-generic root=UUID=149ac71c-7444-48aa-bc0c-9fb07bccf74c ro recovery nomodeset resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
        echo    'Wczytywanie początkowego dysku RAM...'
        initrd    /boot/initrd.img-3.5.0-24-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+ ###
menuentry "Memory test (memtest86+)" {
    insmod part_msdos
    insmod ext2
    set root='hd1,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
    else
      search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
    fi
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod part_msdos
    insmod ext2
    set root='hd1,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  149ac71c-7444-48aa-bc0c-9fb07bccf74c
    else
      search --no-floppy --fs-uuid --set=root 149ac71c-7444-48aa-bc0c-9fb07bccf74c
    fi
    linux16    /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Slackware Linux (Slackware 13.37.0)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-0a2ebb07-8b93-4938-9bee-7eca19168eee' {
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  0a2ebb07-8b93-4938-9bee-7eca19168eee
    else
      search --no-floppy --fs-uuid --set=root 0a2ebb07-8b93-4938-9bee-7eca19168eee
    fi
    linux /boot/vmlinuz root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
}
submenu 'Opcje zaawansowane dla systemu Slackware Linux (Slackware 13.37.0)' $menuentry_id_option 'osprober-gnulinux-advanced-0a2ebb07-8b93-4938-9bee-7eca19168eee' {
    menuentry 'Slackware (na /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz--0a2ebb07-8b93-4938-9bee-7eca19168eee' {
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  0a2ebb07-8b93-4938-9bee-7eca19168eee
        else
          search --no-floppy --fs-uuid --set=root 0a2ebb07-8b93-4938-9bee-7eca19168eee
        fi
        linux /boot/vmlinuz root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
    }
}
błąd: syntax error.
błąd: Incorrect command.
błąd: syntax error.
Błąd składni w linii 287
firekage@deusex:~$

Bottom, in english, means:

error: syntax error
error: incorrect command
error; syntax error
error in line 287

[oldfred]

Is not line 287 the last line?

Maybe os-prober cannot copy the submenu entry?

I might try removing that.
Or you can copy to 40_custom & remove submenu entry. Then turn os-prober off.
In /etc/default/grub I added this:
gksudo gedit /etc/default/grub
GRUB_DISABLE_OS_PROBER=true
or turn off executeable bit
sudo chmod a-x /etc/grub.d/30_os-prober


gedit /boot/grub/grub.cfg
Copy them to and edit :
gksudo gedit /etc/grub.d/40_custom
Then do:
sudo update-grub

[schragge]

Yes, the last line is line 287. Closing double-quotes are missing in two places in resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee:

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Slackware Linux (Slackware 13.37.0)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-0a2ebb07-8b93-4938-9bee-7eca19168eee' {
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  0a2ebb07-8b93-4938-9bee-7eca19168eee
    else
      search --no-floppy --fs-uuid --set=root 0a2ebb07-8b93-4938-9bee-7eca19168eee
    fi
    linux /boot/vmlinuz root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee"
}
submenu 'Opcje zaawansowane dla systemu Slackware Linux (Slackware 13.37.0)' $menuentry_id_option 'osprober-gnulinux-advanced-0a2ebb07-8b93-4938-9bee-7eca19168eee' {
    menuentry 'Slackware (na /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz--0a2ebb07-8b93-4938-9bee-7eca19168eee' {
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  0a2ebb07-8b93-4938-9bee-7eca19168eee
        else
          search --no-floppy --fs-uuid --set=root 0a2ebb07-8b93-4938-9bee-7eca19168eee
        fi
        linux /boot/vmlinuz root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
    }
}

grub-script-check considers everything marked in red to be one long kernel boot parameter, then encounters unmatched }, and aborts on syntax error. As grub-script-check also gets called by update-grub (or rather by grub-mkconfig that itself gets called by update-grub), update-grub aborts, too.

I wonder how the closing double-quote got dropped from grub.cfg.new? Try manually running linux-boot-prober on /dev/sda2:

sudo linux-boot-prober /dev/sda2|cut -d: -f6-|nl -s': ' -w1|egrep --color ':|"'

If it will show unmatched double-quotes among kernel boot parameters then I guess the problem lies with your Slackware grub configuration, not with Ubuntu.

[firekage]

Is not line 287 the last line?

Maybe os-prober cannot copy the submenu entry?

I might try removing that.

I'm not that much experienced in this, please write steb by step what to remove or what and where to add sometginh.

Or you can copy to 40_custom & remove submenu entry.

What to copy.

gedit /boot/grub/grub.cfg
Copy them to and edit :
gksudo gedit /etc/grub.d/40_custom
Then do:
sudo update-grub

What to copy when you mean "copy them"?

[firekage]

Yes, the last line is line 287. Closing double-quotes are missing in two places in resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee:

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Slackware Linux (Slackware 13.37.0)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-0a2ebb07-8b93-4938-9bee-7eca19168eee' {
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  0a2ebb07-8b93-4938-9bee-7eca19168eee
    else
      search --no-floppy --fs-uuid --set=root 0a2ebb07-8b93-4938-9bee-7eca19168eee
    fi
    linux /boot/vmlinuz root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee"
}
submenu 'Opcje zaawansowane dla systemu Slackware Linux (Slackware 13.37.0)' $menuentry_id_option 'osprober-gnulinux-advanced-0a2ebb07-8b93-4938-9bee-7eca19168eee' {
    menuentry 'Slackware (na /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz--0a2ebb07-8b93-4938-9bee-7eca19168eee' {
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  0a2ebb07-8b93-4938-9bee-7eca19168eee
        else
          search --no-floppy --fs-uuid --set=root 0a2ebb07-8b93-4938-9bee-7eca19168eee
        fi
        linux /boot/vmlinuz root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
    }
}

grub-script-check considers everything marked in red to be one long kernel boot parameter, then encounters unmatched }, and aborts on syntax error. As grub-script-check also gets called by update-grub (or rather by grub-mkconfig that itself gets called by update-grub), update-grub aborts, too.

I wonder how the closing double-quote got dropped from grub.cfg.new? Try manually running linux-boot-prober on /dev/sda2:

sudo linux-boot-prober /dev/sda2|cut -d: -f6-|nl -s': ' -w1|egrep --color ':|"'

If it will show unmatched double-quotes among kernel boot parameters then I guess the problem lies with your Slackware grub configuration, not with Ubuntu.

It's magic for me:

firekage@deusex:/$ sudo linux-boot-prober /dev/sda2|cut -d: -f6-|nl -s': ' -w1|egrep --color ':|"'
1: root=UUID ro  vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee
firekage@deusex:/$

[schragge]

What to copy when you mean "copy them"?

oldfred means the lines inserted by os-prober into /boot/grub/grub.cfg. He suggest copying them into /etc/grub.d/40_custom, then disabling os-prober in /etc/default/grub. If you are lost, try the following.

This will copy os-prober-generated lines from /boot/grub/grub.cfg into /boot/grub/custom.cfg (using 41_custom instead of 40_custom):

sudo sed -n '/os-prober ###$/,//w/boot/grub/custom.cfg' /boot/grub/grub.cfg

This will disable os-prober in /etc/default/grub:

echo GRUB_DISABLE_OS_PROBER=true|sudo tee -a /etc/default/grub

After this you need

sudo update-grube

Now, boot into your Slackware 13.37 installation on /dev/sda2 and repair boot loader configuration there. I guess it's liloconfig if you're using LILO and grubconfig if you're using GRUB. Alternatively, you can edit lilo.conf/menu.lst of your Slackware manually (IIRC, Slackware 13.37 still uses grub-legacy). When done, reboot into Ubuntu, and

sudo rm /boot/grub/custom.cfg
sudo sed -i '/^GRUB_DISABLE_OS_PROBER/s/^/#/' /etc/default/grub
sudo update-grub

[oldfred]

I think schragge & I see the same issue which is the missing double quote at the end of this line. He is using script commands to modify thing. I just used editor but result is the same.

linux /boot/vmlinuz root=UUID ro vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee

If Slackware is using grub legacy, grub2's os-prober is reading that menu.lst and trying to convert to grub2 style. Either a " is missing in Slackware's menu.lst or the conversion to grub2 style is not done correctly.

This is a simplified boot stanza. But does Slackware not have an initrd line in its boot stanza? or is the Quote issue causing issues with it also?

Added double quote at end, removed scripting and search lines. They are there in case drive is moved to a new location and is not hd0, so it searches system for the correct UUID. As long as it is hd0, search is redundant.

menuentry 'Slackware (na /dev/sda2)' {
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
linux /boot/vmlinuz root=UUID ro vt.default_utf8=0 vga = normal append = "resume=UUID=9a4b8b62-9163-4d61-b9af-4d4c75e29fee"
}

It might be worthwhile to dump all the configurations, so we can see details, Run the BootInfo report and post link.

Post the link to the BootInfo report that this creates. Is part of Boot-Repair:
https://help.ubuntu.com/community/Boot-Info
Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
https://help.ubuntu.com/community/Boot-Repair

[schragge]

But does Slackware not have an initrd line in its boot stanza? or is the Quote issue causing issues with it also?

On Slackware, /boot/vmlinuz is a symlink to /boot/vmlinuz-huge-<version>, which is a huge kernel with all drivers compiled in, and thus not needing initrd. It's usually used for recovery or debugging. Normal kernel is /boot/vmlinuz-generic-<version>, and it comes with initrd.

[firekage]

oldfred means the lines inserted by os-prober into /boot/grub/grub.cfg. He suggest copying them into /etc/grub.d/40_custom, then disabling os-prober in /etc/default/grub. If you are lost, try the following.

Thanks.

This will copy os-prober-generated lines from /boot/grub/grub.cfg into /boot/grub/custom.cfg (using 41_custom instead of 40_custom):

sudo -n sed '/os-prober ###$/,//w/boot/grub/custom.cfg' /boot/grub/grub.cfg

Can't do it. When i type this i have message: sudo : unfortunaltely, password is required for sudo (what is strange for me, because it doesen't ask for it, just warns and i can't type it)

I won't try anything more, that You posted, because of this error above, in fact - i just can't.

[firekage]

Now, boot into your Slackware 13.37 installation on /dev/sda2 and repair boot loader configuration there. I guess it's liloconfig if you're using LILO and grubconfig if you're using GRUB. Alternatively, you can edit lilo.conf/menu.lst of your Slackware manually (IIRC, Slackware 13.37 still uses grub-legacy). When done, reboot into Ubuntu, and

Strange is that only this instance of ubuntu warns me when i update grub. I have another one with the same Slackware set up and there is no warning, no error. In fact, i have also few different "debian" based linux system - Kubuntu and Mint - and with them it is fine.