Thread: "A disk read error occured" - have included Boot Info Script

ubuntu has been installed on partition of same hard-drive windows 7 installation.

when starting
error message appears: "a disk read error has occured - press ctrl + alt + del restart"

can run ubuntu live cd , able mount both partitions , see files contained within, although painfully slow.

here results boot_info_script

============================= boot info summary: ===============================

=> windows installed in mbr of /dev/sda.

sda1: __________________________________________________ ________________________

file system: ntfs
boot sector type: windows vista/7
boot sector info: no errors found in boot parameter block.
boot file info: grub2 (v1.97-1.98) in file /mbr_backup.log looks
@ sector 1 of same hard drive core.img,
core.img can not found @ location.
operating system: windows 7
boot files: /bootmgr /boot/bcd /windows/system32/winload.exe
/ntldr /ntdetect.com

sda2: __________________________________________________ ________________________

file system: extended partition
boot sector type: -
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: ubuntu 11.10
boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda7: __________________________________________________ ________________________

file system: swap
boot sector type: -
boot sector info:

============================ drive/partition info: =============================

drive: sda __________________________________________________ ___________________

disk /dev/sda: 320.1 gb, 320072933376 bytes
255 heads, 63 sectors/track, 38913 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/sda1 * 63 526,837,349 526,837,287 7 ntfs / exfat / hpfs
/dev/sda2 526,837,758 625,141,759 98,304,002 5 extended
/dev/sda5 620,951,552 625,141,759 4,190,208 82 linux swap / solaris
/dev/sda6 526,837,760 616,757,247 89,919,488 83 linux
/dev/sda7 616,759,296 620,943,359 4,184,064 82 linux swap / solaris


"blkid" output: __________________________________________________ ______________

device uuid type label

/dev/loop0 squashfs
/dev/sda1 1cd0ea08d0e9e84a ntfs
/dev/sda5 09b39206-b5b5-4071-be7d-905b3dc67007 swap
/dev/sda6 eacb6636-feec-48ef-afae-51b9416e245d ext4
/dev/sda7 5e22acce-7d7b-4069-976b-70502f17dae2 swap

================================ mount points: =================================

device mount_point type options

/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sda1 /media/1cd0ea08d0e9e84a fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
/dev/sr0 /cdrom iso9660 (ro,noatime)


=========================== sda6/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# not edit file
#
# automatically generated grub-mkconfig using templates
# /etc/grub.d , settings /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 "${have_grubenv}" ]; if [ -z "${boot_once}" ]; 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,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
set locale_dir=($root)/boot/grub/locale
set lang=en_ie
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ]; then
set timeout=10
else
set timeout=10
fi
### end /etc/grub.d/00_header ###

### begin /etc/grub.d/05_debian_theme ###
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
insmod jpeg
if background_image /boot/grub/.background_cache.jpeg; then
set color_normal=black/black
set color_highlight=magenta/black
else
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30; then
clear
fi
fi
### end /etc/grub.d/05_debian_theme ###

### begin /etc/grub.d/10_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 1cd0ea08d0e9e84a
chainloader +1
}
### end /etc/grub.d/10_os-prober ###

### begin /etc/grub.d/20_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" ]; load_video; fi
menuentry 'ubuntu, linux 3.0.0-14-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
linux /boot/vmlinuz-3.0.0-14-generic root=uuid=eacb6636-feec-48ef-afae-51b9416e245d ro quiet splash vt.handoff=7
initrd /boot/initrd.img-3.0.0-14-generic
}
menuentry 'ubuntu, linux 3.0.0-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
echo 'loading linux 3.0.0-14-generic ...'
linux /boot/vmlinuz-3.0.0-14-generic root=uuid=eacb6636-feec-48ef-afae-51b9416e245d ro recovery nomodeset
echo 'loading initial ramdisk ...'
initrd /boot/initrd.img-3.0.0-14-generic
}
submenu "previous linux versions" {
menuentry 'ubuntu, linux 3.0.0-12-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
linux /boot/vmlinuz-3.0.0-12-generic root=uuid=eacb6636-feec-48ef-afae-51b9416e245d ro quiet splash vt.handoff=7
initrd /boot/initrd.img-3.0.0-12-generic
}
menuentry 'ubuntu, linux 3.0.0-12-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
echo 'loading linux 3.0.0-12-generic ...'
linux /boot/vmlinuz-3.0.0-12-generic root=uuid=eacb6636-feec-48ef-afae-51b9416e245d ro recovery nomodeset
echo 'loading initial ramdisk ...'
initrd /boot/initrd.img-3.0.0-12-generic
}
}
### end /etc/grub.d/20_linux ###

### begin /etc/grub.d/20_linux_xen ###
### end /etc/grub.d/20_linux_xen ###

### begin /etc/grub.d/30_memtest86+ ###
menuentry "memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
linux16 /boot/memtest86+.bin
}
menuentry "memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos6)'
search --no-floppy --fs-uuid --set=root eacb6636-feec-48ef-afae-51b9416e245d
linux16 /boot/memtest86+.bin console=ttys0,115200n8
}
### end /etc/grub.d/30_memtest86+ ###

### begin /etc/grub.d/40_custom ###
# file provides easy way add custom menu entries. type the
# menu entries want add after comment. careful not change
# '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 ###
--------------------------------------------------------------------------------

=============================== sda6/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# use 'blkid' print universally unique identifier a
# device; may used uuid= more robust way name devices
# works if disks added , removed. see fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / on /dev/sda6 during installation
uuid=eacb6636-feec-48ef-afae-51b9416e245d / ext4 errors=remount-ro 0 1
# swap on /dev/sda5 during installation
uuid=09b39206-b5b5-4071-be7d-905b3dc67007 none swap sw 0 0
# swap on /dev/sda7 during installation
uuid=5e22acce-7d7b-4069-976b-70502f17dae2 none swap sw 0 0
/dev/sda1 /media/sda1 ntfs nls=iso8859-1,ro,umask=000 0 0
--------------------------------------------------------------------------------

=================== sda6: location of files loaded grub: ====================

gib - gb file fragment(s)

= boot/grub/core.img 1
= boot/grub/grub.cfg 1
= boot/initrd.img-3.0.0-12-generic 1
= boot/initrd.img-3.0.0-14-generic 1
= boot/vmlinuz-3.0.0-12-generic 1
= boot/vmlinuz-3.0.0-14-generic 1
= initrd.img.old 1
= vmlinuz 1
= vmlinuz.old 1

=============================== stderr messages: ===============================

awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in
awk: cmd. line:36: math support not compiled in

can spot fault , suggest remedy?

thanks.

does happen ubuntu or windows?

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support New to Ubuntu [ubuntu] "A disk read error occured" - have included Boot Info Script

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