Grub2 does not understand lilo.conf on Salix

[kengo_shimane]

Grub2 does not understand lilo.conf on Salix.

Bug

I got error message when I tried to update-grub on Ubuntu 14.04 with os-prober;

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error: out of memory
error: syntax error
error: Incorrect command
Syntax error in line 274
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Line 274 is located at the last line of grub.cfg.new, which I did not understand why out of memory.
However, I found a syntax error on the line for 30_os-prober section, where a double quotation was disappeared at the kernel option for Salix.

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menuentry 'Slackware Linux (Slackware 14.1) (on /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-06ea6304-df14-4be6-8b42-defb07a91323' {
 insmod part_msdos
 insmod ext2
 set root='hd0,msdos2'
 if [ x$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 06ea6304-df14-4be6-8b42-defb07a91323
 else
   search --no-floppy --fs-uuid --set=root 06ea6304-df14-4be6-8b42-defb07a91323
 fi
 linux /boot/vmlinuz-huge-3.10.17 root=/dev/sda2 ro append = "vt.default_utf8=1 vga = normal
}
submenu 'Advanced options for Slackware Linux (Slackware 14.1) (on /dev/sda2)' $menuentry_id_option 'osprober-gnulinux-advanced-06ea6304-df14-4be6-8b42-defb07a91323' {
 menuentry 'Salix_Mate_14.1 (on /dev/sda2)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-huge-3.10.17--06ea6304-df14-4be6-8b42-defb07a91323' {
  insmod part_msdos
  insmod ext2
  set root='hd0,msdos2'
  if [ x$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 06ea6304-df14-4be6-8b42-defb07a91323
  else
    search --no-floppy --fs-uuid --set=root 06ea6304-df14-4be6-8b42-defb07a91323
  fi
  linux /boot/vmlinuz-huge-3.10.17 root=/dev/sda2 ro append = "vt.default_utf8=1 vga = normal
 }
}
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I had a Salix on the sda2 partition and os-prober did not succeed to get the correct variables from Salix boot directory.
This was confirmed because linux-boot-prober /dev/sda2 showed the same result:

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/dev/sda2:/dev/sda2:Salix_Mate_14.1:/boot/vmlinuz-huge-3.10.17::root=/dev/sda2 ro append = "vt.default_utf8=1 vga = normal
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Workaround

I configured LILO on Salix partition by editing lilo.conf to uncomment append = "vt.default_utf8=1".

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# append = "vt.default_utf8=1"
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Then grub2 works well without error message and updates grub.cfg with correct variables of kernel option for Salix.

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linux /boot/vmlinuz-huge-3.10.17 root=/dev/sda2 ro vga = normal
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Suggestions

I suggest the relevant scripts in 30_os-prober should be edited to recognize correctly double quotation even if this is found on other boot directory.

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LPARAMS="`echo ${LINUX} | cut -d ':' -f 6- | tr '^' ' '`" #This original, not edited yet, though.
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