Hi all, I am a newbie t linux and using ubuntu 11.4 on a dualboot machine running windows 7 alongside, so i migrated from a wubi installation to a native install some time ago. and whats bugging me is this problem with ubuntu where i am not able to boot into ubuntu normally. ten tries and BOOM! success. But when i boot windows 7 it just runs fine. and then every thing on ubuntu runs late. Not that i did not have this problem when i was using wubi but i fixed it using the guide provided by BCBC. so if anybody out there can help me please do. i have been trying to google this issue since ages and yet i couldn't get a clue. heres the boot info script.
Code:
Boot Info Script 0.60    from 17 May 2011


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

 => Windows is installed in the MBR of /dev/sda.
 => 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 (,msdos7)/boot/grub on this drive.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7
    Boot sector info:   According to the info in the boot sector, sda1 starts 
                       at sector 2048. But according to the info from fdisk, 
                       sda1 starts at sector 63. The info in boot sector on 
                       the starting sector of the MFT is wrong. According to 
                       the info in the boot sector, sda1 has 871909375 
                       sectors, but according to the info from fdisk, it has 
                       1984 sectors.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7
    Boot sector info:   According to the info in the boot sector, sda2 starts 
                       at sector 871911424. But according to the info from 
                       fdisk, sda2 starts at sector 2048. According to the 
                       info in the boot sector, sda2 has 104857599 sectors, 
                       but according to the info from fdisk, it has 871909375 
                       sectors.
    Operating System:  
    Boot files:        

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  Unknown
    Boot sector info:  
    Mounting failed:   mount: unknown filesystem type ''

sdb1: __________________________________________________________________________

    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:        /bootmgr /Boot/BCD /Windows/System32/winload.exe

sdb2: __________________________________________________________________________

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

sdb5: __________________________________________________________________________

    File system:       
    Boot sector type:  Unknown
    Boot sector info:  
    Mounting failed:   mount: unknown filesystem type ''
mount: unknown filesystem type ''

sdb6: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7
    Boot sector info:   According to the info in the boot sector, sdb6 starts 
                       at sector 63.
    Operating System:  
    Boot files:        

sdb7: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  Ubuntu 11.04
    Boot files:        /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

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

Drive: sda _____________________________________________________________________

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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         2,047         1,985  42 SFS
/dev/sda2    *          2,048   871,911,423   871,909,376  42 SFS
/dev/sda3         871,911,424   976,771,119   104,859,696  42 SFS


Drive: sdb _____________________________________________________________________

Disk /dev/sdb: 320.1 GB, 320072933376 bytes
240 heads, 63 sectors/track, 41345 cylinders, total 625142448 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    *             63   163,840,319   163,840,257   7 NTFS / exFAT / HPFS
/dev/sdb2         163,840,381   625,121,279   461,280,899   f W95 Extended (LBA)
/dev/sdb5         163,842,048   327,677,951   163,835,904   7 NTFS / exFAT / HPFS
/dev/sdb6         327,680,703   491,520,942   163,840,240   7 NTFS / exFAT / HPFS
/dev/sdb7         491,521,023   625,121,279   133,600,257   7 NTFS / exFAT / HPFS


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/sda1        7C18DA6618DA1F48                       ntfs       Movies
/dev/sda2        C44EDDD04EDDBB7E                       ntfs       Gen
/dev/sdb1        7C8453138452CF70                       ntfs       Wild
/dev/sdb6        7C3CD30D3CD2C0F6                       ntfs       Songs
/dev/sdb7        4d3caac4-393c-4825-b2e5-f17fe1f63a14   ext4       

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

Device           Mount_Point              Type       Options

/dev/sda1        /media/Movies            fuseblk    (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)
/dev/sdb6        /media/Songs             fuseblk    (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)
/dev/sdb7        /                        ext4       (rw,errors=remount-ro,commit=0)


=========================== sdb7/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='(/dev/sdb,msdos7)'
search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(/dev/sdb,msdos7)'
search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
set locale_dir=($root)/boot/grub/locale
set lang=en_US
insmod gettext
if [ "${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
if background_color 44,0,30; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
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 2.6.38-11-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    set gfxpayload=$linux_gfx_mode
    insmod part_msdos
    insmod ext2
    set root='(/dev/sdb,msdos7)'
    search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
    linux    /boot/vmlinuz-2.6.38-11-generic root=UUID=4d3caac4-393c-4825-b2e5-f17fe1f63a14 ro   quiet splash vt.handoff=7
    initrd    /boot/initrd.img-2.6.38-11-generic
}
menuentry 'Ubuntu, with Linux 2.6.38-11-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    set gfxpayload=$linux_gfx_mode
    insmod part_msdos
    insmod ext2
    set root='(/dev/sdb,msdos7)'
    search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
    echo    'Loading Linux 2.6.38-11-generic ...'
    linux    /boot/vmlinuz-2.6.38-11-generic root=UUID=4d3caac4-393c-4825-b2e5-f17fe1f63a14 ro single 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.38-11-generic
}
submenu "Previous Linux versions" {
menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    set gfxpayload=$linux_gfx_mode
    insmod part_msdos
    insmod ext2
    set root='(/dev/sdb,msdos7)'
    search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
    linux    /boot/vmlinuz-2.6.35-22-generic root=UUID=4d3caac4-393c-4825-b2e5-f17fe1f63a14 ro   quiet splash vt.handoff=7
    initrd    /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    set gfxpayload=$linux_gfx_mode
    insmod part_msdos
    insmod ext2
    set root='(/dev/sdb,msdos7)'
    search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
    echo    'Loading Linux 2.6.35-22-generic ...'
    linux    /boot/vmlinuz-2.6.35-22-generic root=UUID=4d3caac4-393c-4825-b2e5-f17fe1f63a14 ro single 
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd.img-2.6.35-22-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='(/dev/sdb,msdos7)'
    search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod part_msdos
    insmod ext2
    set root='(/dev/sdb,msdos7)'
    search --no-floppy --fs-uuid --set=root 4d3caac4-393c-4825-b2e5-f17fe1f63a14
    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/sdb1)" --class windows --class os {
    insmod part_msdos
    insmod ntfs
    set root='(/dev/sdb,msdos1)'
    search --no-floppy --fs-uuid --set=root 7C8453138452CF70
    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 ###
--------------------------------------------------------------------------------

=============================== sdb7/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/fd0        /media/floppy0  auto    rw,user,noauto,exec,utf8 0       0
# root was on /dev/sdb7 when migrated
UUID=4d3caac4-393c-4825-b2e5-f17fe1f63a14    /    ext4    errors=remount-ro    0    1
--------------------------------------------------------------------------------

=================== sdb7: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

 286.563853741 = 307.695595008  boot/grub/core.img                             1
 276.516215801 = 296.907025920  boot/grub/grub.cfg                             1
 234.516112804 = 251.809758720  boot/initrd.img-2.6.35-22-generic              2
 247.234862804 = 265.466412544  boot/initrd.img-2.6.38-11-generic              2
 286.510173321 = 307.637956096  boot/vmlinuz-2.6.35-22-generic                 1
 286.514388561 = 307.642482176  boot/vmlinuz-2.6.38-11-generic                 1
 247.234862804 = 265.466412544  initrd.img                                     2
 234.516112804 = 251.809758720  initrd.img.old                                 2
 286.514388561 = 307.642482176  vmlinuz                                        1
 286.510173321 = 307.637956096  vmlinuz.old                                    1

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

MFT Sector of sda1

00000000  46 49 4c 45 30 00 03 00  df a6 5a 0c 00 00 00 00  |FILE0.....Z.....|
00000010  01 00 01 00 38 00 01 00  a0 01 00 00 00 04 00 00  |....8...........|
00000020  00 00 00 00 00 00 00 00  0a 00 00 00 00 00 00 00  |................|
00000030  9f 6a 00 00 00 00 00 00  10 00 00 00 60 00 00 00  |.j..........`...|
00000040  00 00 18 00 00 00 00 00  48 00 00 00 18 00 00 00  |........H.......|
00000050  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000070  06 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000080  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000090  00 00 00 00 00 00 00 00  30 00 00 00 68 00 00 00  |........0...h...|
000000a0  00 00 18 00 00 00 03 00  4a 00 00 00 18 00 01 00  |........J.......|
000000b0  05 00 00 00 00 00 05 00  00 00 00 00 00 00 00 00  |................|
000000c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  00 00 00 00 00 00 00 00  00 80 3d 04 00 00 00 00  |..........=.....|
000000e0  00 80 3d 04 00 00 00 00  06 00 00 00 00 00 00 00  |..=.............|
000000f0  04 03 24 00 4d 00 46 00  54 00 00 00 00 00 00 00  |..$.M.F.T.......|
00000100  80 00 00 00 48 00 00 00  01 00 40 00 00 00 01 00  |....H.....@.....|
00000110  00 00 00 00 00 00 00 00  d7 43 00 00 00 00 00 00  |.........C......|
00000120  40 00 00 00 00 00 00 00  00 80 3d 04 00 00 00 00  |@.........=.....|
00000130  00 80 3d 04 00 00 00 00  00 80 3d 04 00 00 00 00  |..=.......=.....|
00000140  32 d8 43 00 00 0c 00 c1  b0 00 00 00 50 00 00 00  |2.C.........P...|
00000150  01 00 40 00 00 00 09 00  00 00 00 00 00 00 00 00  |..@.............|
00000160  02 00 00 00 00 00 00 00  40 00 00 00 00 00 00 00  |........@.......|
00000170  00 30 00 00 00 00 00 00  f0 21 00 00 00 00 00 00  |.0.......!......|
00000180  f0 21 00 00 00 00 00 00  31 01 ff ff 0b 31 02 be  |.!......1....1..|
00000190  0e f4 00 00 00 00 00 00  ff ff ff ff 00 00 00 00  |................|
000001a0  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 9f 6a  |...............j|
00000200
Unknown BootLoader on sda3


Unknown BootLoader on sdb2

00000000  c7 5c 36 69 5e d3 d2 42  fd f2 fb af bf 01 b7 c4  |.\6i^..B........|
00000010  0b 29 a4 94 fa d2 71 bc  28 4c 28 45 ff 5e f2 ea  |.)....q.(L(E.^..|
00000020  bf 08 39 a3 85 c1 1b 29  74 d0 c3 0d 83 b4 31 44  |..9....)t.....1D|
00000030  23 09 ac 31 41 02 29 ec  8b 2f c5 25 8c 52 49 fe  |#..1A.)../.%.RI.|
00000040  02 5c 51 23 0c 0b fc ff  f2 ca 30 73 74 8b 33 b8  |.\Q#......0st.3.|
00000050  f0 22 32 4c a6 98 62 f2  c2 06 31 0a 72 cc bd b8  |."2L..b...1.r...|
00000060  c2 e6 48 26 8d a4 4f b1  45 5b 1c 33 d3 30 17 d4  |..H&..O.E[.3.0..|
00000070  c8 2d 0a 6b 63 dc 33 31  45 c3 73 af 17 67 bb 35  |.-.kc.31E.s..g.5|
00000080  9d 15 b9 e2 28 cc 4b 9c  82 0d 2f ae 4c 5d 72 d5  |....(.K.../.L]r.|
00000090  c5 f9 b2 b0 c6 4d 83 f4  d0 c6 85 2e d3 4a 36 00  |.....M.......J6.|
000000a0  34 97 e6 9a 6e cb ac b7  db 05 fd 7c 92 ca 28 7b  |4...n......|..({|
000000b0  94 72 42 84 07 9c b2 e1  19 c1 cd 71 dc a6 46 ac  |.rB........q..F.|
000000c0  f1 40 2d 2f 04 30 e2 06  b1 74 0b d4 8c 27 f4 37  |.@-/.0...t...'.7|
000000d0  c0 45 1b 6d 38 df 93 3f  3d ba d6 82 df a2 05 4a  |.E.m8..?=......J|
000000e0  9a ab ae f9 e2 46 17 64  1f 03 f2 78 ee 38 9b b4  |.....F.d...x.8..|
000000f0  63 23 50 e8 0c a5 ba 37  ef b9 f7 fe fb e0 98 00  |c#P....7........|
00000100  2c 79 e1 85 83 4e 90 f0  7d b7 8d cd 35 73 d7 7d  |,y...N..}...5s.}|
00000110  b7 9a 02 db cd 03 0f 3a  50 7f bd 0c d7 6b bf 7d  |.......:P....k.}|
00000120  f5 3a 70 83 0e f8 e1 8b  0f 7e 3b e8 c0 33 cf f8  |.:p......~;..3..|
00000130  e9 a7 3f 8f 00 e5 a3 d3  8e 3c fc 88 9f 07 0e 38  |..?......<.....8|
00000140  70 7f 3d 0e 3b a0 63 ff  b7 cb 82 b7 44 91 e8 56  |p.=.;.c.....D..V|
00000150  37 b3 4b 68 61 14 4a 23  54 af de e6 10 8f f8 ce  |7.Kha.J#T.......|
00000160  74 04 b9 04 c3 b0 d1 0b  a8 95 ae 76 b7 e8 05 c4  |t..........v....|
00000170  3e 66 90 a1 39 4d 81 a1  c0 06 f1 de c6 90 cc 19  |>f..9M..........|
00000180  a4 54 ab 3b a1 08 4f b8  38 5e b0 83 00 f5 18 07  |.T.;..O.8^......|
00000190  f3 4c a5 b0 8c b0 63 3d  0c 20 00 39 1a 48 c1 06  |.L....c=. .9.H..|
000001a0  02 af 87 cb 9a 9a 36 8e  13 44 92 11 b1 64 d1 d8  |......6..D...d..|
000001b0  19 c9 a6 96 36 93 69 23  13 54 33 8e c2 08 00 ef  |....6.i#.T3.....|
000001c0  ff ff 07 ef ff ff 83 06  00 00 00 f0 c3 09 00 ef  |................|
000001d0  ff ff 05 ef ff ff 83 f6  c3 09 af 0b c4 09 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

Unknown BootLoader on sdb5

00000000  eb 58 90 2d 46 56 45 2d  46 53 2d 00 02 08 00 00  |.X.-FVE-FS-.....|
00000010  00 00 00 00 00 f8 00 00  3f 00 f0 00 83 06 00 00  |........?.......|
00000020  00 00 00 00 e0 1f 00 00  00 00 00 00 00 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 00 29 00 00 00 00 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  a0 fb 7d b4 7d 8b f0 ac  |{......|..}.}...|
00000070  98 40 74 0c 48 74 0e b4  0e bb 07 00 cd 10 eb ef  |.@t.Ht..........|
00000080  a0 fd 7d eb e6 cd 16 cd  19 00 00 00 00 00 00 00  |..}.............|
00000090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000a0  3b d6 67 49 29 2e d8 4a  83 99 f6 a3 39 e3 d0 01  |;.gI)..J....9...|
000000b0  00 00 fc c0 00 00 00 00  00 00 fd c0 00 00 00 00  |................|
000000c0  00 00 fe c0 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000100  0d 0a 52 65 6d 6f 76 65  20 64 69 73 6b 73 20 6f  |..Remove disks o|
00000110  72 20 6f 74 68 65 72 20  6d 65 64 69 61 2e ff 0d  |r other media...|
00000120  0a 44 69 73 6b 20 65 72  72 6f 72 ff 0d 0a 50 72  |.Disk error...Pr|
00000130  65 73 73 20 61 6e 79 20  6b 65 79 20 74 6f 20 72  |ess any key to r|
00000140  65 73 74 61 72 74 0d 0a  00 00 00 00 00 00 00 00  |estart..........|
00000150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000190  00 00 00 00 00 00 00 00  78 78 78 78 78 78 78 78  |........xxxxxxxx|
000001a0  78 78 78 78 78 78 78 78  78 78 78 78 78 78 78 78  |xxxxxxxxxxxxxxxx|
*
000001e0  78 78 78 78 78 78 78 78  ff ff ff ff ff ff ff ff  |xxxxxxxx........|
000001f0  ff ff ff ff ff ff ff ff  ff ff ff 00 1f 2c 55 aa  |.............,U.|
00000200


=============================== StdErr Messages: ===============================

unlzma: Decoder error
hexdump: /dev/sda3: No such file or directory
hexdump: /dev/sda3: No such file or directory