Can you check if the disk is OK?
Do you know how to chroot?
Can you post the output of boot_info_script (https://sourceforge.net/projects/bootinfoscript/)? (If you don't know how to run the script, look here (http://bootinfoscript.sourceforge.net/).)
I have been checking it with e2fsck -f three times now. I can write files, I can read files, no signs of bad sectors.
I don't know (yet) how to chroot, I will search on how to do this.
Boot_info_script:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #1 for /boot/grub.
sda1: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.04 LTS
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
=========================== Drive/Partition Info: =============================
Drive: sda ___________________ __________________________________________________ ___
Disk /dev/sda: 8447 MB, 8447459328 bytes
255 heads, 63 sectors/track, 1027 cylinders, total 16498944 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start End Size Id System
/dev/sda1 * 63 16,498,754 16,498,692 83 Linux
blkid -c /dev/null: __________________________________________________ __________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 583d1afd-6b96-47ca-8a41-1491b80cae69 ext4
/dev/sda: PTTYPE="dos"
============================ "mount | grep ^/dev output: ===========================
Device Mount_Point Type Options
aufs / aufs (rw)
/dev/sr1 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sda1 /media/583d1afd-6b96-47ca-8a41-1491b80cae69 ext4 (rw,nosuid,nodev,uhelper=udisks)
=========================== sda1/boot/grub/grub.cfg: ===========================
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/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
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 583d1afd-6b96-47ca-8a41-1491b80cae69
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 583d1afd-6b96-47ca-8a41-1491b80cae69
set locale_dir=($root)/boot/grub/locale
set lang=pl
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
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, za pomocą systemu Linux 2.6.32-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 583d1afd-6b96-47ca-8a41-1491b80cae69
linux /boot/vmlinuz-2.6.32-22-generic root=UUID=583d1afd-6b96-47ca-8a41-1491b80cae69 ro quiet splash
initrd /boot/initrd.img-2.6.32-22-generic
}
menuentry 'Ubuntu, za pomocą systemu Linux 2.6.32-22-generic (tryb ratunkowy)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 583d1afd-6b96-47ca-8a41-1491b80cae69
echo 'Wczytywanie systemu Linux 2.6.32-22-generic...'
linux /boot/vmlinuz-2.6.32-22-generic root=UUID=583d1afd-6b96-47ca-8a41-1491b80cae69 ro single
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-2.6.32-22-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 583d1afd-6b96-47ca-8a41-1491b80cae69
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 583d1afd-6b96-47ca-8a41-1491b80cae69
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###
=============================== sda1/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
# / was on /dev/sda1 during installation
UUID=583d1afd-6b96-47ca-8a41-1491b80cae69 / ext4 errors=remount-ro 0 1
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
=================== sda1: Location of files loaded by Grub: ===================
4.6GB: boot/grub/core.img
.1GB: boot/grub/grub.cfg
4.8GB: boot/initrd.img-2.6.32-22-generic
5.2GB: boot/vmlinuz-2.6.32-22-generic
4.8GB: initrd.img
5.2GB: vmlinuz