Ubuntu 10.10 is not booting-help

[hoboy]

I have wel working dual booting ubuntu 10.10 an windows 7
windows was installed first then ubuntu, in separated partition.
you know windows I was hi by some virus I only use windows for visual studio programming.
Then I have formated the partition windows was installed, then reinstalled windows 7.
Now when I boot ubuntu not visible. the dualbooting is not working

[Rubi1200]

We need to get a better overview of your current setup.

Please do the following:

Boot the Ubuntu Live CD/USB. Choose the option "Try Ubuntu without any changes." Once the desktop loads come back here and do the following:

1. Download the boot info script. There is a link in my signature.
2. Once downloaded, move the boot info script to the desktop.
3. Open a terminal and run the command


sudo bash ~/Desktop/boot_info_script*.sh

This will create a RESULTS.txt file on the desktop. Paste the entire contents of that file back here in a new post. Once pasted highlight all text and click the # sign on the toolbar to place code tags around the text.

[hoboy]

Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Windows is installed in the MBR of /dev/sda

sda1: __________________________________________________ _______________________

File system: Extended Partition
Boot sector type: Unknown
Boot sector info:

sda5: __________________________________________________ _______________________

File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda2: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /bootmgr /Boot/BCD /Windows/System32/winload.exe /grldr

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 457,129,982 1,250,263,039 793,133,058 5 Extended
/dev/sda5 457,129,984 1,250,263,039 793,133,056 83 Linux
/dev/sda2 * 18,876,416 457,128,135 438,251,720 7 HPFS/NTFS


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1: PTTYPE="dos"
/dev/sda2 9A5002AC50028EE7 ntfs
/dev/sda5 83f61dc9-4680-4fa0-904c-5c6f2e0240ae ext4
/dev/sda: PTTYPE="dos"

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

aufs / aufs (rw)
/dev/sr0 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)


=========================== sda5/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 $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
set default="0"
if [ "${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
}

function load_video {
insmod vbe
insmod vga
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
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 2.6.35-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
linux /boot/vmlinuz-2.6.35-24-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro ipv6.disable=1 quiet splash
initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
echo 'Loading Linux 2.6.35-24-generic ...'
linux /boot/vmlinuz-2.6.35-24-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-24-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-23-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
linux /boot/vmlinuz-2.6.35-23-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro ipv6.disable=1 quiet splash
initrd /boot/initrd.img-2.6.35-23-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
echo 'Loading Linux 2.6.35-23-generic ...'
linux /boot/vmlinuz-2.6.35-23-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-23-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro ipv6.disable=1 quiet splash
initrd /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
echo 'Loading Linux 2.6.35-22-generic ...'
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-25-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
linux /boot/vmlinuz-2.6.32-25-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro ipv6.disable=1 quiet splash
initrd /boot/initrd.img-2.6.32-25-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-25-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
echo 'Loading Linux 2.6.32-25-generic ...'
linux /boot/vmlinuz-2.6.32-25-generic root=UUID=83f61dc9-4680-4fa0-904c-5c6f2e0240ae ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-25-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='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos5)'
search --no-floppy --fs-uuid --set 83f61dc9-4680-4fa0-904c-5c6f2e0240ae
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sda2)" {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set 3c2c74d32c748a22
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 ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

=============================== sda5/etc/fstab: ===============================

# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
/dev/sda5 / ext4 errors=remount-ro 0 1

=================== sda5: Location of files loaded by Grub: ===================


504.8GB: boot/grub/core.img
505.0GB: boot/grub/grub.cfg
237.4GB: boot/initrd.img-2.6.32-25-generic
235.1GB: boot/initrd.img-2.6.35-22-generic
235.2GB: boot/initrd.img-2.6.35-23-generic
463.3GB: boot/initrd.img-2.6.35-24-generic
505.1GB: boot/vmlinuz-2.6.32-25-generic
505.0GB: boot/vmlinuz-2.6.35-22-generic
505.1GB: boot/vmlinuz-2.6.35-23-generic
505.0GB: boot/vmlinuz-2.6.35-24-generic
463.3GB: initrd.img
235.2GB: initrd.img.old
505.0GB: vmlinuz
505.1GB: vmlinuz.old
=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on sda1

00000000 00 00 00 41 89 c5 44 0f 45 e9 41 b8 00 00 00 00 |...A..D.E.A.....|
00000010 b9 03 00 00 00 ba 16 00 00 00 be 09 00 00 00 4c |...............L|
00000020 89 f7 41 ff 97 d0 00 00 00 49 63 d4 48 89 04 d3 |..A......Ic.H...|
00000030 41 ff c4 44 89 e9 83 e1 01 48 85 c0 b8 00 00 00 |A..D.....H......|
00000040 00 41 89 c5 44 0f 45 e9 41 b8 00 00 00 00 b9 03 |.A..D.E.A.......|
00000050 00 00 00 ba 17 00 00 00 be 01 00 00 00 4c 89 f7 |.............L..|
00000060 41 ff 97 c8 00 00 00 49 63 d4 48 89 04 d3 41 ff |A......Ic.H...A.|
00000070 c4 44 89 e9 83 e1 01 48 85 c0 b8 00 00 00 00 41 |.D.....H.......A|
00000080 89 c5 44 0f 45 e9 41 b8 00 00 00 00 b9 03 00 00 |..D.E.A.........|
00000090 00 ba 19 00 00 00 be 06 00 00 00 4c 89 f7 41 ff |...........L..A.|
000000a0 97 c8 00 00 00 49 63 d4 48 89 04 d3 41 ff c4 44 |.....Ic.H...A..D|
000000b0 89 e9 83 e1 01 48 85 c0 b8 00 00 00 00 41 89 c5 |.....H.......A..|
000000c0 44 0f 45 e9 41 b8 00 00 00 00 b9 03 00 00 00 ba |D.E.A...........|
000000d0 1a 00 00 00 be 03 00 00 00 4c 89 f7 41 ff 97 c8 |.........L..A...|
000000e0 00 00 00 49 63 d4 48 89 04 d3 41 ff c4 44 89 e9 |...Ic.H...A..D..|
000000f0 83 e1 01 48 85 c0 b8 00 00 00 00 41 89 c5 44 0f |...H.......A..D.|
00000100 45 e9 41 b8 01 00 00 00 b9 03 00 00 00 ba 1b 00 |E.A.............|
00000110 00 00 be 0f 00 00 00 4c 89 f7 41 ff 97 c0 00 00 |.......L..A.....|
00000120 00 49 63 d4 48 89 04 d3 41 ff c4 44 89 e9 83 e1 |.Ic.H...A..D....|
00000130 01 48 85 c0 b8 00 00 00 00 41 89 c5 44 0f 45 e9 |.H.......A..D.E.|
00000140 41 b8 01 00 00 00 b9 03 00 00 00 ba 1b 00 00 00 |A...............|
00000150 be 0a 00 00 00 4c 89 f7 41 ff 97 d0 00 00 00 49 |.....L..A......I|
00000160 63 d4 48 89 04 d3 41 ff c4 44 89 e9 83 e1 01 48 |c.H...A..D.....H|
00000170 85 c0 b8 00 00 00 00 41 89 c5 44 0f 45 e9 41 b8 |.......A..D.E.A.|
00000180 01 00 00 00 b9 03 00 00 00 ba 1b 00 00 00 be 04 |................|
00000190 00 00 00 4c 89 f7 41 ff 97 c8 00 00 00 49 63 d4 |...L..A......Ic.|
000001a0 48 89 04 d3 41 ff c4 44 89 e9 83 e1 01 48 85 c0 |H...A..D.....H..|
000001b0 b8 00 00 00 00 41 89 c5 44 0f 45 e9 41 b8 00 fe |.....A..D.E.A...|
000001c0 ff ff 83 fe ff ff 02 00 00 00 00 40 46 2f 00 00 |...........@F/..|
000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200

[Quackers]

You need to install grub to the mbr of your hard drive.
If you boot from a live cd and choose "try ubuntu" and when the desktop loads open up a terminal and run these commands

sudo mount /dev/sda5 /mnt
sudo grub-install --root-directory=/mnt /dev/sda
Then reboot and Ubuntu should boot directly. From the Ubuntu desktop open up a terminal and run
sudo update-grub
As grub/cfg is run, you should see the Windows Loader appear. If it does, reboot and you should get the option to boot both systems on the grub menu.

[hoboy]

You need to install grub to the mbr of your hard drive.
If you boot from a live cd and choose "try ubuntu" and when the desktop loads open up a terminal and run these commands

sudo mount /dev/sda5 /mnt
sudo grub-install --root-directory=/mnt /dev/sda
Then reboot and Ubuntu should boot directly. From the Ubuntu desktop open up a terminal and run
sudo update-grub
As grub/cfg is run, you should see the Windows Loader appear. If it does, reboot and you should get the option to boot both systems on the grub menu.

I have done what you have mentioned, now when I start the computer I get dark screen with a blinking on the left corner of the screen