Thanks grahammechanical for your support, but installing grub in sdb didnt solve the issue..
Yancek: find my bootinfo below:
Boot Info Script 0.61 [1 April 2012]
============================= Boot Info Summary: ===============================
=> Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of the same hard drive for core.img. core.img is at this location and uses an embedded config file:
--------------------------------------------------------------------------- search.fs_uuid 83ed0c73-1c9a-4e6f-8944-da8afeaae166 root set prefix=($root)/boot/grub --------------------------------------------------------------------------- -----. => Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for (,msdos2)/boot/grub on this drive.
sda1: __________________________________________________________________________
File system: Extended Partition Boot sector type: - Boot sector info:
sda5: __________________________________________________________________________
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:
sda6: __________________________________________________________________________
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:
sda7: __________________________________________________________________________
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:
sda8: __________________________________________________________________________
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:
sdb1: __________________________________________________________________________
File system: ntfs Boot sector type: Windows Vista/7: NTFS Boot sector info: No errors found in the Boot Parameter Block. Operating System: Windows 7 Boot files: /grldr /bootmgr /Boot/BCD /Windows/System32/winload.exe /grldr
sdb2: __________________________________________________________________________
File system: ext4 Boot sector type: - Boot sector info: Operating System: elementary OS Luna Boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sdb3: __________________________________________________________________________
File system: swap Boot sector type: - Boot sector info:
sdb4: __________________________________________________________________________
File system: Extended Partition Boot sector type: - Boot sector info:
sdb5: __________________________________________________________________________
File system: ntfs Boot sector type: Windows XP: NTFS Boot sector info: According to the info in the boot sector, sdb5 starts at sector 63. Operating System: Boot files:
sdb6: __________________________________________________________________________
File system: ntfs Boot sector type: Windows XP: NTFS Boot sector info: According to the info in the boot sector, sdb6 starts at sector 63. Operating System: Boot files:
sdb7: __________________________________________________________________________
File system: ntfs Boot sector type: Windows XP: NTFS Boot sector info: According to the info in the boot sector, sdb7 starts at sector 63. Operating System: Boot files:
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 1,953,523,711 1,953,521,664 5 Extended /dev/sda5 4,096 512,004,095 512,000,000 7 NTFS / exFAT / HPFS /dev/sda6 512,006,144 1,024,006,143 512,000,000 7 NTFS / exFAT / HPFS /dev/sda7 1,024,008,192 1,536,008,191 512,000,000 7 NTFS / exFAT / HPFS /dev/sda8 1,536,010,240 1,953,523,711 417,513,472 7 NTFS / exFAT / HPFS
Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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/sdb1 * 2,048 32,774,143 32,772,096 7 NTFS / exFAT / HPFS /dev/sdb2 32,774,144 65,546,239 32,772,096 83 Linux /dev/sdb3 65,546,240 66,070,527 524,288 82 Linux swap / Solaris /dev/sdb4 66,075,406 312,576,704 246,501,299 5 Extended /dev/sdb5 66,075,408 143,412,254 77,336,847 7 NTFS / exFAT / HPFS /dev/sdb6 143,412,318 227,994,479 84,582,162 7 NTFS / exFAT / HPFS /dev/sdb7 227,994,543 312,576,704 84,582,162 7 NTFS / exFAT / HPFS
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/sda5 132E36BA0B084634 ntfs /dev/sda6 0B70B8921F6A9B91 ntfs Games /dev/sda7 26DE24A608D7A794 ntfs Work /dev/sda8 42193F4731FE9BF6 ntfs MotionPictures /dev/sdb1 F08E29158E28D5BE ntfs /dev/sdb2 83ed0c73-1c9a-4e6f-8944-da8afeaae166 ext4 /dev/sdb3 a621effd-6f54-4962-a986-6ace0639a0d3 swap /dev/sdb5 5CC8897CC88954E4 ntfs Games/Downloads /dev/sdb6 FC60918960914B72 ntfs Compatible /dev/sdb7 403887F73887EA6C ntfs NewVolume
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sdb2 / ext4 (rw,errors=remount-ro)
=========================== sdb2/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 "${boot_once}" ]; then save_env recordfail; fi; fi }
function load_video { insmod vbe insmod vga insmod video_bochs insmod video_cirrus }
insmod part_msdos insmod ext2 set root='(hd1,msdos2)' search --no-floppy --fs-uuid --set=root 83ed0c73-1c9a-4e6f-8944-da8afeaae166 if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=auto load_video insmod gfxterm insmod part_msdos insmod ext2 set root='(hd1,msdos2)' search --no-floppy --fs-uuid --set=root 83ed0c73-1c9a-4e6f-8944-da8afeaae166 set locale_dir=($root)/boot/grub/locale set lang=en_IN insmod gettext fi terminal_output gfxterm if [ "${recordfail}" = 1 ] ; then set timeout=-1 else set timeout=10 fi
END /etc/grub.d/00_header ###
BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black set menu_color_highlight=black/light-gray if background_color 0,0,0; then clear fi
END /etc/grub.d/05_debian_theme ###
BEGIN /etc/grub.d/10_linux ###
function gfxmode { set gfxpayload="${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 'elementary OS, with Linux 3.2.0-68-generic-pae' --class elementary --class gnu-linux --class gnu --class os { recordfail gfxmode $linux_gfx_mode insmod gzio insmod part_msdos insmod ext2 set root='(hd1,msdos2)' search --no-floppy --fs-uuid --set=root 83ed0c73-1c9a-4e6f-8944-da8afeaae166 linux /boot/vmlinuz-3.2.0-68-generic-pae root=UUID=83ed0c73-1c9a-4e6f-8944-da8afeaae166 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.2.0-68-generic-pae } menuentry 'elementary OS, with Linux 3.2.0-68-generic-pae (recovery mode)' --class elementary --class gnu-linux --class gnu --class os { recordfail insmod gzio insmod part_msdos insmod ext2 set root='(hd1,msdos2)' search --no-floppy --fs-uuid --set=root 83ed0c73-1c9a-4e6f-8944-da8afeaae166 echo 'Loading Linux 3.2.0-68-generic-pae ...' linux /boot/vmlinuz-3.2.0-68-generic-pae root=UUID=83ed0c73-1c9a-4e6f-8944-da8afeaae166 ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-68-generic-pae } submenu "Previous Linux versions" { menuentry 'elementary OS, with Linux 3.2.0-51-generic-pae' --class elementary --class gnu-linux --class gnu --class os { recordfail gfxmode $linux_gfx_mode insmod gzio insmod part_msdos insmod ext2 set root='(hd1,msdos2)' search --no-floppy --fs-uuid --set=root 83ed0c73-1c9a-4e6f-8944-da8afeaae166 linux /boot/vmlinuz-3.2.0-51-generic-pae root=UUID=83ed0c73-1c9a-4e6f-8944-da8afeaae166 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.2.0-51-generic-pae } menuentry 'elementary OS, with Linux 3.2.0-51-generic-pae (recovery mode)' --class elementary --class gnu-linux --class gnu --class os { recordfail insmod gzio insmod part_msdos insmod ext2 set root='(hd1,msdos2)' search --no-floppy --fs-uuid --set=root 83ed0c73-1c9a-4e6f-8944-da8afeaae166 echo 'Loading Linux 3.2.0-51-generic-pae ...' linux /boot/vmlinuz-3.2.0-51-generic-pae root=UUID=83ed0c73-1c9a-4e6f-8944-da8afeaae166 ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-51-generic-pae } }
END /etc/grub.d/10_linux ###
BEGIN /etc/grub.d/20_linux_xen ###
END /etc/grub.d/20_linux_xen ###
BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sdb1)" --class windows --class os { insmod part_msdos insmod ntfs set root='(hd1,msdos1)' search --no-floppy --fs-uuid --set=root F08E29158E28D5BE chainloader +1 } set timeout_style=menu if [ "${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 $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi
END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------
=============================== sdb2/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/sdb2 during installation
UUID=83ed0c73-1c9a-4e6f-8944-da8afeaae166 / ext4 errors=remount-ro 0 1
swap was on /dev/sdb3 during installation
UUID=a621effd-6f54-4962-a986-6ace0639a0d3 none swap sw 0 0 --------------------------------------------------------------------------------
=================== sdb2: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
= boot/grub/core.img 1 = boot/grub/grub.cfg 1 = boot/initrd.img-3.2.0-51-generic-pae 3 = boot/initrd.img-3.2.0-68-generic-pae 2 = boot/vmlinuz-3.2.0-51-generic-pae 1 = boot/vmlinuz-3.2.0-68-generic-pae 1 = initrd.img 2 = initrd.img.old 3 = vmlinuz 1 = vmlinuz.old 1
=============================== StdErr Messages: ===============================
xz: (stdin): Compressed data is corrupt xz: (stdin): Compressed data is corrupt awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in awk: cmd. line:36: Math support is not compiled in