Public bug reported:

 grub-mkconfig looks at all disks in the system and generates a huge grub.cfg 
file; 

It searches unmounted disks and adds everything with a /grub directory
to grub.cfg ;

By default - it should only search the current /boot partition, or alternately 
add an option 
that searches all mounted FS ;

IT SHOULD NOT BROWSE ALL RAW DISKS - EVEN THOSE THAT ARE NOT MOUNTED.

 dpkg -l | grep grub-comm
ii  grub-common                            2.02~beta2-9                  
powerpc      GRand Unified Bootloader (common file)


grub file with contents of umounted  disks:

( only /dev/sda was mounted )

-----

(trusty)root@(none):~# 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 $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="5"
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 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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd3,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
else
  search --no-floppy --fs-uuid --set=root 95af99e7-e863-4417-b594-e5debfabb9ee
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_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=-1
else
  if [ x$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
### 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
}
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
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os 
$menuentry_id_option 'gnulinux-simple-95af99e7-e863-4417-b594-e5debfabb9ee' {
        recordfail
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd3,msdos3'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
        else
          search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
        fi
        linux   /boot/vmlinux-3.13.9+ 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro  console=ttyS0,115200 
nomdmonddf nomdmonisw
        initrd  /boot/initrd.img-3.13.9+
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 
'gnulinux-advanced-95af99e7-e863-4417-b594-e5debfabb9ee' {
        menuentry 'Ubuntu, with Linux 3.13.9+' --class ubuntu --class gnu-linux 
--class gnu --class os $menuentry_id_option 
'gnulinux-3.13.9+-advanced-95af99e7-e863-4417-b594-e5debfabb9ee' {
                recordfail
                load_video
                gfxmode $linux_gfx_mode
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.13.9+ ...'
                linux   /boot/vmlinux-3.13.9+ 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro  console=ttyS0,115200 
nomdmonddf nomdmonisw
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd.img-3.13.9+
        }
        menuentry 'Ubuntu, with Linux 3.13.9+ (recovery mode)' --class ubuntu 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.13.9+-recovery-95af99e7-e863-4417-b594-e5debfabb9ee' {
                recordfail
                load_video
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.13.9+ ...'
                linux   /boot/vmlinux-3.13.9+ 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro recovery nomodeset
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd.img-3.13.9+
        }
        menuentry 'Ubuntu, with Linux 3.13.0-24-powerpc-e500mc.org' --class 
ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.13.0-24-powerpc-e500mc.org-advanced-95af99e7-e863-4417-b594-e5debfabb9ee'
 {
                recordfail
                load_video
                gfxmode $linux_gfx_mode
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.13.0-24-powerpc-e500mc.org ...'
                linux   /boot/vmlinux-3.13.0-24-powerpc-e500mc.org 
root=/dev/sdd3 ro  console=ttyS0,115200 nomdmonddf nomdmonisw
        }
        menuentry 'Ubuntu, with Linux 3.13.0-24-powerpc-e500mc.org (recovery 
mode)' --class ubuntu --class gnu-linux --class gnu --class os 
$menuentry_id_option 
'gnulinux-3.13.0-24-powerpc-e500mc.org-recovery-95af99e7-e863-4417-b594-e5debfabb9ee'
 {
                recordfail
                load_video
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.13.0-24-powerpc-e500mc.org ...'
                linux   /boot/vmlinux-3.13.0-24-powerpc-e500mc.org 
root=/dev/sdd3 ro recovery nomodeset
        }
        menuentry 'Ubuntu, with Linux 3.13.0-24-powerpc-e500mc' --class ubuntu 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.13.0-24-powerpc-e500mc-advanced-95af99e7-e863-4417-b594-e5debfabb9ee'
 {
                recordfail
                load_video
                gfxmode $linux_gfx_mode
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.13.0-24-powerpc-e500mc ...'
                linux   /boot/vmlinux-3.13.0-24-powerpc-e500mc 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro  console=ttyS0,115200 
nomdmonddf nomdmonisw
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd.img-3.13.0-24-powerpc-e500mc
        }
        menuentry 'Ubuntu, with Linux 3.13.0-24-powerpc-e500mc (recovery mode)' 
--class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.13.0-24-powerpc-e500mc-recovery-95af99e7-e863-4417-b594-e5debfabb9ee'
 {
                recordfail
                load_video
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.13.0-24-powerpc-e500mc ...'
                linux   /boot/vmlinux-3.13.0-24-powerpc-e500mc 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro recovery nomodeset
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd.img-3.13.0-24-powerpc-e500mc
        }
        menuentry 'Ubuntu, with Linux 3.11.10.4-jpd+' --class ubuntu --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.11.10.4-jpd+-advanced-95af99e7-e863-4417-b594-e5debfabb9ee' {
                recordfail
                load_video
                gfxmode $linux_gfx_mode
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.11.10.4-jpd+ ...'
                linux   /boot/vmlinux-3.11.10.4-jpd+ 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro  console=ttyS0,115200 
nomdmonddf nomdmonisw
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd.img-3.11.10.4-jpd+
        }
        menuentry 'Ubuntu, with Linux 3.11.10.4-jpd+ (recovery mode)' --class 
ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.11.10.4-jpd+-recovery-95af99e7-e863-4417-b594-e5debfabb9ee' {
                recordfail
                load_video
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos3'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos3' --hint-bios=hd3,msdos3 
--hint-efi=hd3,msdos3 --hint-baremetal=ahci3,msdos3  
95af99e7-e863-4417-b594-e5debfabb9ee
                else
                  search --no-floppy --fs-uuid --set=root 
95af99e7-e863-4417-b594-e5debfabb9ee
                fi
                echo    'Loading Linux 3.11.10.4-jpd+ ...'
                linux   /boot/vmlinux-3.11.10.4-jpd+ 
root=UUID=95af99e7-e863-4417-b594-e5debfabb9ee ro recovery nomodeset
                echo    'Loading initial ramdisk ...'
                initrd  /boot/initrd.img-3.11.10.4-jpd+
        }
}

### 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 ###
menuentry 'Ubuntu 13.10 (13.10) (on /dev/sda1)' --class gnu-linux --class gnu 
--class os $menuentry_id_option 
'osprober-gnulinux-simple-2ac7a0ae-6bc0-4444-82a4-2a20d352a877' {
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20000,gpt1' --hint-bios=hd0,gpt1 
--hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
        else
          search --no-floppy --fs-uuid --set=root 
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
        fi
        linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=2ac7a0ae-6bc0-4444-82a4-2a20d352a877 ro quiet splash $vt_handoff
        initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
}
submenu 'Advanced options for Ubuntu 13.10 (13.10) (on /dev/sda1)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-2ac7a0ae-6bc0-4444-82a4-2a20d352a877' {
        menuentry 'Ubuntu (on /dev/sda1)' --class gnu-linux --class gnu --class 
os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--2ac7a0ae-6bc0-4444-82a4-2a20d352a877'
 {
                insmod part_gpt
                insmod ext2
                set root='hd0,gpt1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20000,gpt1' --hint-bios=hd0,gpt1 
--hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                else
                  search --no-floppy --fs-uuid --set=root 
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=2ac7a0ae-6bc0-4444-82a4-2a20d352a877 ro quiet splash $vt_handoff
                initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
        }
        menuentry 'Ubuntu, with Linux 3.11.0-5-powerpc-e500mc (on /dev/sda1)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--2ac7a0ae-6bc0-4444-82a4-2a20d352a877'
 {
                insmod part_gpt
                insmod ext2
                set root='hd0,gpt1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20000,gpt1' --hint-bios=hd0,gpt1 
--hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                else
                  search --no-floppy --fs-uuid --set=root 
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=2ac7a0ae-6bc0-4444-82a4-2a20d352a877 ro quiet splash $vt_handoff
                initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
        }
        menuentry 'Ubuntu, with Linux 3.11.0-5-powerpc-e500mc (recovery mode) 
(on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc-root=UUID=2ac7a0ae-6bc0-4444-82a4-2a20d352a877
 ro recovery nomodeset-2ac7a0ae-6bc0-4444-82a4-2a20d352a877' {
                insmod part_gpt
                insmod ext2
                set root='hd0,gpt1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20000,gpt1' --hint-bios=hd0,gpt1 
--hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                else
                  search --no-floppy --fs-uuid --set=root 
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=2ac7a0ae-6bc0-4444-82a4-2a20d352a877 ro recovery nomodeset
                initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
        }
        menuentry 'Fedora release 20 (Heisenbug) (on /dev/sda1)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux--2ac7a0ae-6bc0-4444-82a4-2a20d352a877' {
                insmod part_gpt
                insmod ext2
                set root='hd0,gpt1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20000,gpt1' --hint-bios=hd0,gpt1 
--hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                else
                  search --no-floppy --fs-uuid --set=root 
2ac7a0ae-6bc0-4444-82a4-2a20d352a877
                fi
                linux /boot/vmlinux root=/dev/sdc1
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
}

menuentry 'CentOS release 6.4 (Final) (on /dev/sdc1)' --class gnu-linux --class 
gnu --class os $menuentry_id_option 
'osprober-gnulinux-simple-ab29e816-141a-4697-bd2d-457c8fb14e22' {
        insmod part_msdos
        insmod ext2
        set root='hd2,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos1' --hint-bios=hd2,msdos1 
--hint-efi=hd2,msdos1 --hint-baremetal=ahci2,msdos1  
ab29e816-141a-4697-bd2d-457c8fb14e22
        else
          search --no-floppy --fs-uuid --set=root 
ab29e816-141a-4697-bd2d-457c8fb14e22
        fi
        linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=ab29e816-141a-4697-bd2d-457c8fb14e22 ro
        initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
}
submenu 'Advanced options for CentOS release 6.4 (Final) (on /dev/sdc1)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-ab29e816-141a-4697-bd2d-457c8fb14e22' {
        menuentry 'CentOS (on /dev/sdc1)' --class gnu-linux --class gnu --class 
os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--ab29e816-141a-4697-bd2d-457c8fb14e22'
 {
                insmod part_msdos
                insmod ext2
                set root='hd2,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos1' --hint-bios=hd2,msdos1 
--hint-efi=hd2,msdos1 --hint-baremetal=ahci2,msdos1  
ab29e816-141a-4697-bd2d-457c8fb14e22
                else
                  search --no-floppy --fs-uuid --set=root 
ab29e816-141a-4697-bd2d-457c8fb14e22
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=ab29e816-141a-4697-bd2d-457c8fb14e22 ro
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
        menuentry 'CentOS, with Linux 3.11.0-5-powerpc-e500mc (on /dev/sdc1)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--ab29e816-141a-4697-bd2d-457c8fb14e22'
 {
                insmod part_msdos
                insmod ext2
                set root='hd2,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos1' --hint-bios=hd2,msdos1 
--hint-efi=hd2,msdos1 --hint-baremetal=ahci2,msdos1  
ab29e816-141a-4697-bd2d-457c8fb14e22
                else
                  search --no-floppy --fs-uuid --set=root 
ab29e816-141a-4697-bd2d-457c8fb14e22
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=ab29e816-141a-4697-bd2d-457c8fb14e22 ro
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
        menuentry 'CentOS, with Linux 3.11.0-5-powerpc-e500mc (recovery mode) 
(on /dev/sdc1)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc-root=UUID=ab29e816-141a-4697-bd2d-457c8fb14e22
 ro single-ab29e816-141a-4697-bd2d-457c8fb14e22' {
                insmod part_msdos
                insmod ext2
                set root='hd2,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos1' --hint-bios=hd2,msdos1 
--hint-efi=hd2,msdos1 --hint-baremetal=ahci2,msdos1  
ab29e816-141a-4697-bd2d-457c8fb14e22
                else
                  search --no-floppy --fs-uuid --set=root 
ab29e816-141a-4697-bd2d-457c8fb14e22
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=ab29e816-141a-4697-bd2d-457c8fb14e22 ro single
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
}

menuentry 'Ubuntu 13.10 (13.10) (on /dev/sdc2)' --class gnu-linux --class gnu 
--class os $menuentry_id_option 
'osprober-gnulinux-simple-71673bdc-cf92-4bac-a595-946ce83fe362' {
        insmod part_msdos
        insmod ext2
        set root='hd2,msdos2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos2' --hint-bios=hd2,msdos2 
--hint-efi=hd2,msdos2 --hint-baremetal=ahci2,msdos2  
71673bdc-cf92-4bac-a595-946ce83fe362
        else
          search --no-floppy --fs-uuid --set=root 
71673bdc-cf92-4bac-a595-946ce83fe362
        fi
        linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=71673bdc-cf92-4bac-a595-946ce83fe362 ro console=ttyS0,115200
        initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
}
submenu 'Advanced options for Ubuntu 13.10 (13.10) (on /dev/sdc2)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-71673bdc-cf92-4bac-a595-946ce83fe362' {
        menuentry 'Ubuntu (on /dev/sdc2)' --class gnu-linux --class gnu --class 
os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--71673bdc-cf92-4bac-a595-946ce83fe362'
 {
                insmod part_msdos
                insmod ext2
                set root='hd2,msdos2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos2' --hint-bios=hd2,msdos2 
--hint-efi=hd2,msdos2 --hint-baremetal=ahci2,msdos2  
71673bdc-cf92-4bac-a595-946ce83fe362
                else
                  search --no-floppy --fs-uuid --set=root 
71673bdc-cf92-4bac-a595-946ce83fe362
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=71673bdc-cf92-4bac-a595-946ce83fe362 ro console=ttyS0,115200
                initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
        }
        menuentry 'Ubuntu, with Linux 3.11.0-5-powerpc-e500mc (on /dev/sdc2)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--71673bdc-cf92-4bac-a595-946ce83fe362'
 {
                insmod part_msdos
                insmod ext2
                set root='hd2,msdos2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos2' --hint-bios=hd2,msdos2 
--hint-efi=hd2,msdos2 --hint-baremetal=ahci2,msdos2  
71673bdc-cf92-4bac-a595-946ce83fe362
                else
                  search --no-floppy --fs-uuid --set=root 
71673bdc-cf92-4bac-a595-946ce83fe362
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=71673bdc-cf92-4bac-a595-946ce83fe362 ro console=ttyS0,115200
                initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
        }
        menuentry 'Ubuntu, with Linux 3.11.0-5-powerpc-e500mc (recovery mode) 
(on /dev/sdc2)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc-root=UUID=71673bdc-cf92-4bac-a595-946ce83fe362
 ro recovery nomodeset-71673bdc-cf92-4bac-a595-946ce83fe362' {
                insmod part_msdos
                insmod ext2
                set root='hd2,msdos2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20200,msdos2' --hint-bios=hd2,msdos2 
--hint-efi=hd2,msdos2 --hint-baremetal=ahci2,msdos2  
71673bdc-cf92-4bac-a595-946ce83fe362
                else
                  search --no-floppy --fs-uuid --set=root 
71673bdc-cf92-4bac-a595-946ce83fe362
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc 
root=UUID=71673bdc-cf92-4bac-a595-946ce83fe362 ro recovery nomodeset
                initrd /boot/initrd.img-3.11.0-5-powerpc-e500mc
        }
}

menuentry 'Fedora release 20 (Heisenbug) (on /dev/sdd1)' --class gnu-linux 
--class gnu --class os $menuentry_id_option 
'osprober-gnulinux-simple-e677c6a9-13e8-4053-963e-fa1efd0bc1bf' {
        insmod part_msdos
        insmod ext2
        set root='hd3,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
        else
          search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
        fi
        linux /boot/vmlinux-3.13.61-g99d721a+ 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro console=ttyS0,115200
        initrd /boot/initramfs-3.13.61-g99d721a+.img
}
submenu 'Advanced options for Fedora release 20 (Heisenbug) (on /dev/sdd1)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-e677c6a9-13e8-4053-963e-fa1efd0bc1bf' {
        menuentry 'Fedora (on /dev/sdd1)' --class gnu-linux --class gnu --class 
os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.61-g99d721a+--e677c6a9-13e8-4053-963e-fa1efd0bc1bf'
 {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.61-g99d721a+ 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro console=ttyS0,115200
                initrd /boot/initramfs-3.13.61-g99d721a+.img
        }
        menuentry 'Fedora, with Linux 3.13.61-g99d721a+ (on /dev/sdd1)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.61-g99d721a+--e677c6a9-13e8-4053-963e-fa1efd0bc1bf'
 {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.61-g99d721a+ 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro console=ttyS0,115200
                initrd /boot/initramfs-3.13.61-g99d721a+.img
        }
        menuentry 'Fedora, with Linux 3.13.61-g99d721a+ (recovery mode) (on 
/dev/sdd1)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.61-g99d721a+-root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf
 ro single console=ttyS0,115200-e677c6a9-13e8-4053-963e-fa1efd0bc1bf' {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.61-g99d721a+ 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro single console=ttyS0,115200
                initrd /boot/initramfs-3.13.61-g99d721a+.img
        }
        menuentry 'Fedora, with Linux 3.13.61-g99d721a+.old (on /dev/sdd1)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.61-g99d721a+.old--e677c6a9-13e8-4053-963e-fa1efd0bc1bf'
 {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.61-g99d721a+.old 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro console=ttyS0,115200
                initrd /boot/initramfs-3.13.61-g99d721a+.img
        }
        menuentry 'Fedora, with Linux 3.13.61-g99d721a+.old (recovery mode) (on 
/dev/sdd1)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.61-g99d721a+.old-root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf
 ro single console=ttyS0,115200-e677c6a9-13e8-4053-963e-fa1efd0bc1bf' {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.61-g99d721a+.old 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro single console=ttyS0,115200
                initrd /boot/initramfs-3.13.61-g99d721a+.img
        }
        menuentry 'Fedora, with Linux 3.13.6jpd+ (on /dev/sdd1)' --class 
gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.6jpd+--e677c6a9-13e8-4053-963e-fa1efd0bc1bf'
 {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.6jpd+ 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro console=ttyS0,115200
                initrd /boot/initramfs-3.13.6jpd+.img
        }
        menuentry 'Fedora, with Linux 3.13.6jpd+ (recovery mode) (on 
/dev/sdd1)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.13.6jpd+-root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf
 ro single console=ttyS0,115200-e677c6a9-13e8-4053-963e-fa1efd0bc1bf' {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos1'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos1' --hint-bios=hd3,msdos1 
--hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                else
                  search --no-floppy --fs-uuid --set=root 
e677c6a9-13e8-4053-963e-fa1efd0bc1bf
                fi
                linux /boot/vmlinux-3.13.6jpd+ 
root=UUID=e677c6a9-13e8-4053-963e-fa1efd0bc1bf ro single console=ttyS0,115200
                initrd /boot/initramfs-3.13.6jpd+.img
        }
}

menuentry 'CentOS release 6.4 (Final) (on /dev/sdd2)' --class gnu-linux --class 
gnu --class os $menuentry_id_option 
'osprober-gnulinux-simple-4355f883-c116-4ff2-b7a0-529b2c7e7d36' {
        insmod part_msdos
        insmod ext2
        set root='hd3,msdos2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos2' --hint-bios=hd3,msdos2 
--hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  
4355f883-c116-4ff2-b7a0-529b2c7e7d36
        else
          search --no-floppy --fs-uuid --set=root 
4355f883-c116-4ff2-b7a0-529b2c7e7d36
        fi
        linux /boot/vmlinux-3.11.0-5-powerpc-e500mc root=/dev/sdd2 ro 
console=ttys0,115200
        initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
}
submenu 'Advanced options for CentOS release 6.4 (Final) (on /dev/sdd2)' 
$menuentry_id_option 
'osprober-gnulinux-advanced-4355f883-c116-4ff2-b7a0-529b2c7e7d36' {
        menuentry 'CentOS (on /dev/sdd2)' --class gnu-linux --class gnu --class 
os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--4355f883-c116-4ff2-b7a0-529b2c7e7d36'
 {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos2' --hint-bios=hd3,msdos2 
--hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  
4355f883-c116-4ff2-b7a0-529b2c7e7d36
                else
                  search --no-floppy --fs-uuid --set=root 
4355f883-c116-4ff2-b7a0-529b2c7e7d36
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc root=/dev/sdd2 ro 
console=ttys0,115200
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
        menuentry 'CentOS, with Linux 3.11.0-5-powerpc-e500mc (on /dev/sdd2)' 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc--4355f883-c116-4ff2-b7a0-529b2c7e7d36'
 {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos2' --hint-bios=hd3,msdos2 
--hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  
4355f883-c116-4ff2-b7a0-529b2c7e7d36
                else
                  search --no-floppy --fs-uuid --set=root 
4355f883-c116-4ff2-b7a0-529b2c7e7d36
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc root=/dev/sdd2 ro 
console=ttys0,115200
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
        menuentry 'CentOS, with Linux 3.11.0-5-powerpc-e500mc (recovery mode) 
(on /dev/sdd2)' --class gnu-linux --class gnu --class os $menuentry_id_option 
'osprober-gnulinux-/boot/vmlinux-3.11.0-5-powerpc-e500mc-root=/dev/sdd2 ro 
single console=ttys0,115200-4355f883-c116-4ff2-b7a0-529b2c7e7d36' {
                insmod part_msdos
                insmod ext2
                set root='hd3,msdos2'
                if [ x$feature_platform_search_hint = xy ]; then
                  search --no-floppy --fs-uuid --set=root 
--hint-ieee1275='ieee1275//sas/disk@20300,msdos2' --hint-bios=hd3,msdos2 
--hint-efi=hd3,msdos2 --hint-baremetal=ahci3,msdos2  
4355f883-c116-4ff2-b7a0-529b2c7e7d36
                else
                  search --no-floppy --fs-uuid --set=root 
4355f883-c116-4ff2-b7a0-529b2c7e7d36
                fi
                linux /boot/vmlinux-3.11.0-5-powerpc-e500mc root=/dev/sdd2 ro 
single console=ttys0,115200
                initrd /boot/initramfs-3.11.0-5-powerpc-e500mc.img
        }
}

set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### 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 ###
(trusty)root@(none):~#

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: ppc

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https://bugs.launchpad.net/bugs/1313911

Title:
  grub-mkconfig finds all /grub directories on umounted disks

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