ubuntu 10.04 grub missing operating system

[ke3pup]

hi guys
today i installed Ubuntu 10.04 on my macbook pro which also has Mac and windows7 installed on it.

I installed ubuntu on /dev/sda5 and i installed grub also to /dev/sda5 via that advance option window.

problem is when i try to boot, Linux icon shows up on reFIT but when i choose it it says "Operating system missing"!

I know its there since i try to fix it by booting into liveCD again and doing:

sudo -i
mount /dev/sda5/ /mnt
mount --bind /proc /mnt/proc
mount --bind /dev /mnt/dev
mount --bind /sys /mnt/sys
chroot /mnt update-grub

when i did that grub generated the list finding linux kernel and windows 7. but again when i reboot and pick the linux icon it says "Operating system missing"!

can someone please help. Thanks

i did it this way so that when i pick the Windows icon on reFIT i don't see gurb and boot straight into windows and only see grub menu when i actually pick the linux icon. How can i fix it?

[ke3pup]

ok i tried the following (keeping in mind my linux partition is /dev/sda5

sudo -i
mount /dev/sda5/ /mnt
mount --bind /proc /mnt/proc
mount --bind /dev /mnt/dev
mount --bind /sys /mnt/sys

grub-install --force --root-directory=/mnt /dev/sda5

chroot /mnt update-grub

now when i reboot and pick th linux icon it boots into windows straight away as though i've clicked the windows icon on reFIT!

Can someone please tell me what i'm doing wrong?

[ke3pup]

any suggestions at all?

[malrost]

Please post your /boot/grub/menu.lst

[ke3pup]

there's no menu.lst in the boot/grub folder i think its because its grub2 but i found a grub.cfg file which might give someone here a hint on how i can fix this?


#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/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
load_env
fi
set default="0"
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,5)'
search --no-floppy --fs-uuid --set 67a362f1-d520-4707-9e04-bf27935df884
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0,5)'
search --no-floppy --fs-uuid --set 67a362f1-d520-4707-9e04-bf27935df884
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
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 ###
menuentry 'Ubuntu, with Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,5)'
search --no-floppy --fs-uuid --set 67a362f1-d520-4707-9e04-bf27935df884
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=67a362f1-d520-4707-9e04-bf27935df884 ro quiet splash
initrd /boot/initrd.img-2.6.32-21-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-21-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,5)'
search --no-floppy --fs-uuid --set 67a362f1-d520-4707-9e04-bf27935df884
echo 'Loading Linux 2.6.32-21-generic ...'
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=67a362f1-d520-4707-9e04-bf27935df884 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-21-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,5)'
search --no-floppy --fs-uuid --set 67a362f1-d520-4707-9e04-bf27935df884
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,5)'
search --no-floppy --fs-uuid --set 67a362f1-d520-4707-9e04-bf27935df884
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Mac OS X (32-bit) (on /dev/sda2)" {
insmod hfsplus
set root='(hd0,2)'
search --no-floppy --fs-uuid --set e887b1524bbb9c79
insmod vbe
set do_resume=0
if [ /var/vm/sleepimage -nt10 / ]; then
if xnu_resume /var/vm/sleepimage; then
set do_resume=1
fi
fi
if [ $do_resume == 0 ]; then
xnu_uuid e887b1524bbb9c79 uuid
if [ -f /Extra/DSDT.aml ]; then
acpi -e /Extra/DSDT.aml
fi
xnu_kernel /mach_kernel boot-uuid=${uuid} rd=*uuid
if [ /System/Library/Extensions.mkext -nt /System/Library/Extensions ]; then
xnu_mkext /System/Library/Extensions.mkext
else
xnu_kextdir /System/Library/Extensions
fi
if [ -f /Extra/Extensions.mkext ]; then
xnu_mkext /Extra/Extensions.mkext
fi
if [ -d /Extra/Extensions ]; then
xnu_kextdir /Extra/Extensions
fi
if [ -f /Extra/devprop.bin ]; then
xnu_devprop_load /Extra/devprop.bin
fi
if [ -f /Extra/splash.jpg ]; then
insmod jpeg
xnu_splash /Extra/splash.jpg
fi
if [ -f /Extra/splash.png ]; then
insmod png
xnu_splash /Extra/splash.png
fi
if [ -f /Extra/splash.tga ]; then
insmod tga
xnu_splash /Extra/splash.tga
fi
fi
}
menuentry "Mac OS X (64-bit) (on /dev/sda2)" {
insmod hfsplus
set root='(hd0,2)'
search --no-floppy --fs-uuid --set e887b1524bbb9c79
insmod vbe
set do_resume=0
if [ /var/vm/sleepimage -nt10 / ]; then
if xnu_resume /var/vm/sleepimage; then
set do_resume=1
fi
fi
if [ $do_resume == 0 ]; then
xnu_uuid e887b1524bbb9c79 uuid
if [ -f /Extra/DSDT.aml ]; then
acpi -e /Extra/DSDT.aml
fi
xnu_kernel64 /mach_kernel boot-uuid=${uuid} rd=*uuid
if [ /System/Library/Extensions.mkext -nt /System/Library/Extensions ]; then
xnu_mkext /System/Library/Extensions.mkext
else
xnu_kextdir /System/Library/Extensions
fi
if [ -f /Extra/Extensions.mkext ]; then
xnu_mkext /Extra/Extensions.mkext
fi
if [ -d /Extra/Extensions ]; then
xnu_kextdir /Extra/Extensions
fi
if [ -f /Extra/devprop.bin ]; then
xnu_devprop_load /Extra/devprop.bin
fi
if [ -f /Extra/splash.jpg ]; then
insmod jpeg
xnu_splash /Extra/splash.jpg
fi
if [ -f /Extra/splash.png ]; then
insmod png
xnu_splash /Extra/splash.png
fi
if [ -f /Extra/splash.tga ]; then
insmod tga
xnu_splash /Extra/splash.tga
fi
fi
}
menuentry "Windows 7 (loader) (on /dev/sda3)" {
insmod ntfs
set root='(hd0,3)'
search --no-floppy --fs-uuid --set a6f01b3bf01b1163
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### 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 ###


i hope its helpful.

[fatigue]

You can boot/fix grub menu by Super Grub Disk


Download Super Grub Disk (http://forjamari.linex.org/projects/supergrub/)
Burn into a cdrom (better) or a floppy
Boot from it


This program, QGRUBeditor is really good program to fix/add new Grub menu.

http://linuxappfinder.com/package/qgrubeditor (http://linuxappfinder.com/package/qgrubeditor)

1 First, use super grub disk and "advance and tool" and "show partition"
Find out what is your windows root number (hd0,?). ? part is important

2 By using QGRUBeditor, you can add windows grub menu.

Windows will be like this

title Windows 7 (Boot)
root (hd0,*)
chainloader +1


Ubuntu will be like

title Ubuntu 10.04 LTS, kernel 2.6.32-21-generic
root (hd0,5)
kernel /boot/vmlinuz-2.6.32-21-generic root=UUID=e3265ff1-6500-457 ro quiet splash
initrd /boot/initrd.img-2.6.32-21-generic
quiet

[efflandt]

I guess the primary question is whether your mbr or whatever boot loader you are chaining to grub2 can boot grub on a "logical" partition? I know grub2 (or grub) work on a "primary" partition marked as the boot partition in the partition table using a standard mbr (I do that on my desktop PC), but I have never tried using a standard mbr to boot a "logical" partition.

[gumaste]

Did you find a resolution to this issue? I have the same problem.