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I keep getting the following message on boot-up:

error occured while mounting /etc/fstab

RESULTS.txt is as follows:

                  Boot Info Script 0.60    from 17 May 2011


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

 => Plop is installed in the MBR of /dev/sda.

sda1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Unknown
    Boot sector info:   No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /DELLBIO.BIN /DELLRMK.BIN /COMMAND.COM

sda2: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows XP
    Boot sector info:   No errors found in the Boot Parameter Block.
    Operating System:  Windows XP
    Boot files:        /boot.ini /ntldr /NTDETECT.COM /wubildr 
                       /ubuntu/winboot/wubildr /wubildr.mbr 
                       /ubuntu/winboot/wubildr.mbr /ubuntu/disks/root.disk 
                       /ubuntu/disks/swap.disk

sda2/Wubi: _____________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  Ubuntu 12.04.2 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sda3: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows XP
    Boot sector info:   No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda4: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows XP: FAT32
    Boot sector info:   No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /ntldr /NTDETECT.COM

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

Drive: sda _____________________________________________________________________

Disk /dev/sda: 118.5 GB, 118526284800 bytes
255 heads, 63 sectors/track, 14410 cylinders, total 231496650 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       160,649       160,587  de Dell Utility
/dev/sda2    *        160,650   166,112,099   165,951,450   7 NTFS / exFAT / HPFS
/dev/sda3         166,128,165   221,745,194    55,617,030   7 NTFS / exFAT / HPFS
/dev/sda4         221,745,195   231,480,584     9,735,390  db CP/M / CTOS / ...


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0       7d785d84-c3b1-4c53-9e81-b4b24a5bffb6   ext4       
/dev/sda1        07D6-0808                              vfat       DellUtility
/dev/sda2        3AB4F76AB4F726D3                       ntfs       
/dev/sda3        5690277C902761AB                       ntfs       Backup
/dev/sda4                                               vfat       DellRestore

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

Device           Mount_Point              Type       Options

/dev/loop0       /                        ext4       (rw,errors=remount-ro)
/dev/sda2        /host                    fuseblk    (rw,nosuid,nodev,locale=en_GB.UTF-8)
/dev/sda3        /media/Backup            fuseblk    (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)


================================ sda2/boot.ini: ================================

--------------------------------------------------------------------------------
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Windows XP Media Center Edition" /noexecute=optin /fastdetect
C:\wubildr.mbr = "Ubuntu"
--------------------------------------------------------------------------------

======================== sda2/Wubi/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 ntfs
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set=root 3AB4F76AB4F726D3
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  insmod part_msdos
  insmod ntfs
  set root='(hd0,msdos2)'
  search --no-floppy --fs-uuid --set=root 3AB4F76AB4F726D3
  loopback loop0 /ubuntu/disks/root.disk
  set root=(loop0)
  set locale_dir=($root)/boot/grub/locale
  set lang=
  insmod gettext
fi
terminal_output gfxterm
if [ "${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 44,0,30; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_lupin ###
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 3.2.0-38-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    set gfxpayload=$linux_gfx_mode
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 3AB4F76AB4F726D3
    loopback loop0 /ubuntu/disks/root.disk
    set root=(loop0)
    linux   /boot/vmlinuz-3.2.0-38-generic root=UUID=3AB4F76AB4F726D3 loop=/ubuntu/disks/root.disk ro   quiet splash vt.handoff=7
    initrd  /boot/initrd.img-3.2.0-38-generic
}
menuentry 'Ubuntu, with Linux 3.2.0-38-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos2)'
    search --no-floppy --fs-uuid --set=root 3AB4F76AB4F726D3
    loopback loop0 /ubuntu/disks/root.disk
    set root=(loop0)
    echo    'Loading Linux 3.2.0-38-generic ...'
    linux   /boot/vmlinuz-3.2.0-38-generic root=UUID=3AB4F76AB4F726D3 loop=/ubuntu/disks/root.disk ro recovery nomodeset 
    echo    'Loading initial ramdisk ...'
    initrd  /boot/initrd.img-3.2.0-38-generic
}
### END /etc/grub.d/10_lupin ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Dell Utility Partition (on /dev/sda1)" --class windows --class os {
    insmod part_msdos
    insmod fat
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set=root 07D6-0808
    drivemap -s (hd0) ${root}
    chainloader +1
}
### 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 ###
--------------------------------------------------------------------------------

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

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

proc    /proc   proc    nodev,noexec,nosuid 0   0
/dev/sda2   /host   ntfs-3g defaults,nosuid,nodev,locale=en_GB.UTF-8    0   0
/dev/sda3   /media/Backup   ntfs    defaults,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000,dmask=0077,fmask=0177    0   0
U#  /etc/fstab: static  file    system  information.
/host/ubuntu/disks/root.disk    /   ext4    loop,errors=remount-ro  0   1
/host/ubuntu/disks/swap.disk    none    swap    loop,sw 0   0


--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

               =                boot/grub/grub.cfg                             1
               =                boot/initrd.img-3.2.0-38-generic               1
               =                boot/vmlinuz-3.2.0-38-generic                  1
               =                initrd.img                                     1
               =                vmlinuz                                        1

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

Unknown BootLoader on sda1

00000000  eb 4a 90 44 65 6c 6c 20  38 2e 30 00 02 04 01 00  |.J.Dell 8.0.....|
00000010  02 00 02 00 00 f8 9d 00  3f 00 ff 00 3f 00 00 00  |........?...?...|
00000020  4b 73 02 00 80 00 29 08  08 d6 07 44 65 6c 6c 55  |Ks....)....DellU|
00000030  74 69 6c 69 74 79 46 41  54 31 36 20 20 20 00 00  |tilityFAT16   ..|
00000040  00 00 00 00 00 00 00 00  00 00 00 30 33 c0 8e d0  |...........03...|
00000050  bc 00 07 fc b9 80 00 8e  d8 be 00 7c b8 00 20 8e  |...........|.. .|
00000060  c0 33 ff f3 66 a5 ea 6b  00 00 20 8e d8 b8 01 02  |.3..f..k.. .....|
00000070  b9 01 00 b6 00 8a 16 24  00 bb 00 02 cd 13 0f 82  |.......$........|
00000080  e0 00 80 3e c2 03 06 74  0e c6 06 c2 03 06 b8 01  |...>...t........|
00000090  03 cd 13 0f 82 cb 00 66  0f b7 06 16 00 66 d1 e0  |.......f.....f..|
000000a0  66 40 66 03 06 1c 00 66  a3 3e 00 8b 2e 11 00 89  |f@f....f.>......|
000000b0  2e 44 00 c1 ed 04 e8 cb  00 4d 75 fa b9 0b 00 be  |.D.......Mu.....|
000000c0  ea 01 8b fd f3 a6 74 0f  83 c5 20 ff 0e 44 00 75  |......t... ..D.u|
000000d0  eb be e0 01 e9 8e 00 26  8b 46 1a a3 46 00 66 a1  |.......&.F..F.f.|
000000e0  1c 00 66 40 66 a3 3e 00  c7 06 48 00 00 00 8b 2e  |..f@f.>...H.....|
000000f0  16 00 e8 8f 00 4d 75 fa  c7 06 4a 00 70 00 c7 06  |.....Mu...J.p...|
00000100  48 00 00 00 66 0f b7 06  46 00 66 83 e8 02 66 0f  |H...f...F.f...f.|
00000110  b6 0e 0d 00 66 f7 e1 66  0f b7 0e 16 00 66 d1 e1  |....f..f.....f..|
00000120  66 41 66 03 0e 1c 00 66  03 c1 66 0f b7 0e 11 00  |fAf....f..f.....|
00000130  66 c1 e9 04 66 03 c1 66  a3 3e 00 0f b6 2e 0d 00  |f...f..f.>......|
00000140  e8 41 00 4d 75 fa 8b 36  46 00 b8 00 30 d1 e6 73  |.A.Mu..6F...0..s|
00000150  03 05 00 10 8e c0 26 ad  3d f8 ff 73 0d a3 46 00  |......&.=..s..F.|
00000160  eb a2 be d5 01 e8 0d 00  eb fe 8a 16 24 00 33 ed  |............$.3.|
00000170  ea 00 00 70 00 ac 3c 00  74 09 b4 0e bb 07 00 cd  |...p..<.t.......|
00000180  10 eb f2 c3 66 a1 3e 00  66 33 d2 66 0f b7 0e 18  |....f.>.f3.f....|
00000190  00 66 f7 f1 fe c2 88 16  25 00 32 d2 66 0f b7 0e  |.f......%.2.f...|
000001a0  1a 00 66 f7 f1 8a f2 8b  c8 b8 01 02 c0 e5 06 0a  |..f.............|
000001b0  2e 25 00 86 e9 8a 16 24  00 c4 1e 48 00 cd 13 72  |.%.....$...H...r|
000001c0  a1 66 ff 06 3e 00 81 06  48 00 00 02 75 06 81 06  |.f..>...H...u...|
000001d0  4a 00 00 10 c3 44 69 73  6b 20 65 72 72 6f 72 00  |J....Disk error.|
000001e0  4e 6f 20 6c 6f 61 64 65  72 00 44 45 4c 4c 42 49  |No loader.DELLBI|
000001f0  4f 20 42 49 4e 00 00 00  00 00 00 00 00 00 55 aa  |O BIN.........U.|
00000200


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

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

How to fix it?

share|improve this question
1  
Hamish suggested to provide the contents of your /etc/fstab file. One way to do this is to run gedit /etc/fstab. This will open the file read-only in a text editor, and you can select the entire contents of the file, copy it to the clipboard, and paste it into your question (use the edit link under your question to edit it, and the <$> tool in the Ask Ubuntu editing toolbar to format the file's contents properly). –  Eliah Kagan Mar 13 '13 at 11:46
    
thanks Hamish. Manfred pointed out a syntax error below in sda2/Wubi/etc/fstab: "U# /etc/fstab: static file system information." have removed offending "U". thanks again for trying to help. –  lars Mar 13 '13 at 14:30
    
thanks also Eliah and Aditya. issue solved. –  lars Mar 13 '13 at 14:58
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