Hello to all...

Here I am , asking for ur precious help.
I`ll try to be short on my problem`s description.
I used to dual-boot with windows7 & Ubuntu...last year i wanted to install the new version of Ubuntu and by trying i managed to destroy my DualBoot.Back then i could only login into Ubuntu even though in my Grub menu i had the choice of Windows it had always given me a black blank screen.
Yesterday i decided to update from Win7 to Win8 and now there is no Grub menu, no Ubuntu...just windows 8. I`d love to have my dual Boot back...i need to gain access to my Ubuntu as soon as possible.
I`m pretty sure that there is nothing to do with Secure Booting or EFI cause my laptop is rather old...it is an Acer Aspire 5630.
I don`t know how to proceed on that by myself so i would appreciate any kind of help.

Here i`m posting the result of the Boot Info Script from a liveCD



Code:
                   Boot Info Script 0.61      [1 April 2012]


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

 => Windows is installed in the MBR of /dev/sda.
 => FreeDOS (eXtended FDisk) is installed in the MBR of /dev/sdc.

sda1: __________________________________________________________________________

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

sda2: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 12.04.1 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab 
                       /boot/extlinux/extlinux.conf /boot/grub/core.img

sda3: __________________________________________________________________________

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

sda5: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info: 

sda6: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

sdc1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  FAT16
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

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

Drive: sda _____________________________________________________________________

Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1    *             63   132,038,234   132,038,172   7 NTFS / exFAT / HPFS
/dev/sda2         132,038,235   161,335,109    29,296,875  83 Linux
/dev/sda3         161,335,294   234,440,703    73,105,410   5 Extended
/dev/sda5         161,335,296   173,053,951    11,718,656  82 Linux swap / Solaris
/dev/sda6         173,056,000   234,440,703    61,384,704  83 Linux


Drive: sdc _____________________________________________________________________

Disk /dev/sdc: 1998 MB, 1998585856 bytes
9 heads, 8 sectors/track, 54215 cylinders, total 3903488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdc1                 512     3,903,487     3,902,976   6 FAT16


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        FA6852B9685273FB                       ntfs       
/dev/sda2        7d3c4347-5c2e-4093-9fb0-6ace68a18171   ext4       
/dev/sda5        9d7e09c0-139a-471b-bcc1-5a1a9468ea91   swap       
/dev/sda6        ba8c7e2b-36b6-4dd0-a400-c33c49d4a7e5   ext4       
/dev/sdc1        4CD2-4A09                              vfat       
/dev/sr0                                                iso9660    Ultimate Edition 3.5

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sdc1        /media/4CD2-4A09         vfat       (rw,nosuid,nodev,uid=999,gid=999,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks)
/dev/sr0         /cdrom                   iso9660    (ro,noatime)


=========================== sda2/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 video_bochs
  insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  insmod part_msdos
  insmod ext2
  set root='(hd0,msdos2)'
  search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
  set locale_dir=($root)/boot/grub/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/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 [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
menuentry 'Ubuntu, with Linux 3.2.0-34-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
    linux    /boot/vmlinuz-3.2.0-34-generic root=UUID=7d3c4347-5c2e-4093-9fb0-6ace68a18171 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.2.0-34-generic
}
menuentry 'Ubuntu, with Linux 3.2.0-34-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
    echo    'Loading Linux 3.2.0-34-generic ...'
    linux    /boot/vmlinuz-3.2.0-34-generic root=UUID=7d3c4347-5c2e-4093-9fb0-6ace68a18171 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.2.0-34-generic
}
submenu "Previous Linux versions" {
menuentry 'Ubuntu, with Linux 3.2.0-33-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    gfxmode $linux_gfx_mode
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
    linux    /boot/vmlinuz-3.2.0-33-generic root=UUID=7d3c4347-5c2e-4093-9fb0-6ace68a18171 ro   quiet splash $vt_handoff
    initrd    /boot/initrd.img-3.2.0-33-generic
}
menuentry 'Ubuntu, with Linux 3.2.0-33-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
    echo    'Loading Linux 3.2.0-33-generic ...'
    linux    /boot/vmlinuz-3.2.0-33-generic root=UUID=7d3c4347-5c2e-4093-9fb0-6ace68a18171 ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-3.2.0-33-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,msdos2)'
    search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 7d3c4347-5c2e-4093-9fb0-6ace68a18171
    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/sda1)" --class windows --class os {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set=root 055F8FDB3E227F2C
    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 ###
--------------------------------------------------------------------------------

=============================== sda2/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' 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
# / was on /dev/sda2 during installation
UUID=7d3c4347-5c2e-4093-9fb0-6ace68a18171 /               ext4    errors=remount-ro 0       1
# /home was on /dev/sda6 during installation
UUID=ba8c7e2b-36b6-4dd0-a400-c33c49d4a7e5 /home           ext4    defaults        0       2
# swap was on /dev/sda5 during installation
UUID=9d7e09c0-139a-471b-bcc1-5a1a9468ea91 none            swap    sw              0       0
--------------------------------------------------------------------------------

====================== sda2/boot/extlinux/extlinux.conf: =======================

--------------------------------------------------------------------------------
## /boot/extlinux/extlinux.conf
##
## IMPORTANT WARNING
##
## The configuration of this file is generated automatically.
## Do not edit this file manually, use: extlinux-update


default l0
prompt 1
timeout 50

include themes/debian/theme.cfg
--------------------------------------------------------------------------------

=================== sda2: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  75.554006100 = 81.125496320   boot/grub/core.img                             1
  66.131257534 = 71.007897088   boot/grub/grub.cfg                             1
  76.924153805 = 82.596681216   boot/initrd.img-3.2.0-33-generic               3
  68.872582912 = 73.951372800   boot/initrd.img-3.2.0-34-generic               3
  75.520051479 = 81.089037824   boot/vmlinuz-3.2.0-33-generic                  2
  65.988801479 = 70.854936064   boot/vmlinuz-3.2.0-34-generic                  1
  65.988801479 = 70.854936064   vmlinuz                                        1
  75.520051479 = 81.089037824   vmlinuz.old                                    2

================= sda2: Location of files loaded by Syslinux: ==================

           GiB - GB             File                                 Fragment(s)

  66.131310940 = 71.007954432   boot/extlinux/chain.c32                        1
  65.094293118 = 69.894465024   boot/extlinux/extlinux.conf                    1

============== sda2: Version of COM32(R) files used by Syslinux: ===============

 boot/extlinux/chain.c32            :  COM32R module (v4.xx)

======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown BootLoader on sda3

00000000  63 f6 84 bc f4 e0 fc 69  fb 90 f3 83 63 dc fb 17  |c......i....c...|
00000010  33 c9 7b 0c e2 fc 15 9b  4e ce 77 44 fe ba 0d f8  |3.{.....N.wD....|
00000020  b2 e4 b9 a8 ef ff d3 d3  96 5e 7f a8 6d 7b ff a0  |.........^..m{..|
00000030  35 f9 1b 41 bb 65 f4 ef  62 51 ff 06 62 1f 86 28  |5..A.e..bQ..b..(|
00000040  85 aa 96 fb 57 7e 64 bf  42 a4 d7 1b c4 1f fb 3f  |....W~d.B......?|
00000050  51 bf 72 22 f4 c0 d9 7f  6b 89 ff cc 18 51 5f 22  |Q.r"....k....Q_"|
00000060  7f 8f 22 9d d3 6f ca 43  3f ce c7 d9 43 7b d7 63  |.."..o.C?...C{.c|
00000070  7c dc fd fa 46 60 5c a9  3a 67 ab 3e be 11 f4 a1  ||...F`\.:g.>....|
00000080  ca e7 4c cf a7 49 fb 64  bb 30 7d ab 4c e8 6b b9  |..L..I.d.0}.L.k.|
00000090  ef 44 f4 fd db 4a 2b bf  48 21 f6 e6 11 27 ab 3d  |.D...J+.H!...'.=|
000000a0  7f 0f 0b 36 8e e3 b7 2f  88 3f 21 e4 b1 e5 fe c4  |...6.../.?!.....|
000000b0  61 c8 cb b4 33 e2 7d 63  77 62 9f 72 f6 73 3c 12  |a...3.}cwb.r.s<.|
000000c0  52 b9 fd d1 4b e4 fc 84  1b 6f 29 d8 43 1d 3f 88  |R...K....o).C.?.|
000000d0  eb e5 02 79 e4 ff dc c9  aa 1f 37 86 3e aa 52 28  |...y......7.>.R(|
000000e0  85 6d 96 fb 61 30 8c d3  2a 89 fe 3e f7 21 df 0f  |.m..a0..*..>.!..|
000000f0  2c 12 cf 03 7b 62 3e 52  b8 fb 0a e5 41 d8 67 39  |,...{b>R....A.g9|
00000100  7b a8 39 d6 27 8b 3b 8f  1f 00 7e a3 e2 f6 57 74  |{.9.'.;...~...Wt|
00000110  4a e2 ef 2a b3 ea 07 b3  b1 d0 a9 5a 67 a1 3e 8b  |J..*.......Zg.>.|
00000120  6f c0 78 32 38 fb f0 07  f0 f7 2c c8 67 cb fd 8e  |o.x28.....,.g...|
00000130  59 58 df 6c c8 8f fb 16  fa 6b 4d fc b7 c5 f5 4f  |YX.l.....kM....O|
00000140  06 e2 ef e0 fa e3 85 f5  0f c6 7c 58 fc d1 66 56  |..........|X..fV|
00000150  b5 e5 af 6e 48 c8 9e a9  b0 ee 3f bc 23 f7 29 b8  |...nH.....?.#.).|
00000160  f7 18 bc c1 9f b2 b9 f3  d2 91 e4 be 24 77 1f 6d  |............$w.m|
00000170  22 d9 cf 03 3e 59 e8 ad  3b 39 ef c6 f8 2c fa cc  |"...>Y..;9...,..|
00000180  73 d8 1b 29 dc fe ad 37  e8 49 c5 e9 f3 91 c4 1f  |s..)...7.I......|
00000190  f0 b3 e8 3f f4 07 04 75  46 1e 05 bd df 40 da 13  |...?...uF....@..|
000001a0  0c 86 c8 e8 d8 18 43 42  62 48 7c a2 c1 20 18 22  |......CBbH|.. ."|
000001b0  4c 31 26 7c 0c 1b 1c 42  7e 86 44 99 86 1a 00 fe  |L1&|...B~.D.....|
000001c0  ff ff 82 fe ff ff 02 00  00 00 00 d0 b2 00 00 fe  |................|
000001d0  ff ff 05 fe ff ff 02 d0  b2 00 00 b0 a8 03 00 00  |................|
000001e0  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