erro: grub rescue

[eddieground]

tudo começou com o automatic login que me deu uns erros tipo could not update ICEauthority


começei a pesquisar sobre assunto mas algo correu mal e agora quando ligo o pc dá um erro unknow file system      grubrescue>

estou a pesquizar sobre o assunto e encontrei uns codigos mas nao estao a resultar ate agora consigo ir ate aqui isto utilizando o cd do ubuntu 9.10   acedendo ao terminal nas aplicaçoes

ubuntu@ubuntu:~$ sudo su
root@ubuntu:/home/ubuntu# sudo bash
root@ubuntu:/home/ubuntu# mkdir root
mkdir: cannot create directory `root': File exists
root@ubuntu:/home/ubuntu# fdisk -l

Disk /dev/sda: 100.0 GB, 100030242816 bytes
135 heads, 14 sectors/track, 103371 cylinders
Units = cylinders of 1890 * 512 = 967680 bytes
Disk identifier: 0x00000001

  Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1       34256    32371913    7  HPFS/NTFS
/dev/sda2           34257      103371    65313675    f  W95 Ext'd (LBA)
/dev/sda5           96261      103371     6719888   82  Linux swap / Solaris
/dev/sda6           34257       96260    58593766   83  Linux

Partition table entries are not in disk order

Disk /dev/sdb: 131 MB, 131072000 bytes
16 heads, 32 sectors/track, 500 cylinders
Units = cylinders of 512 * 512 = 262144 bytes
Disk identifier: 0x30b62bae

  Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1         499      127728    6  FAT16
root@ubuntu:/home/ubuntu# mount -t fat16 -o rw /dev/sdb1
Usage: mount -V                 : print version
      mount -h                 : print this help
      mount                    : list mounted filesystems
      mount -l                 : idem, including volume labels
So far the informational part. Next the mounting.
The command is `mount [-t fstype] something somewhere'.
Details found in /etc/fstab may be omitted.
      mount -a [-t|-O] ...     : mount all stuff from /etc/fstab
      mount device             : mount device at the known place
      mount directory          : mount known device here
      mount -t type dev dir    : ordinary mount command
Note that one does not really mount a device, one mounts
a filesystem (of the given type) found on the device.
One can also mount an already visible directory tree elsewhere:
      mount --bind olddir newdir
or move a subtree:
      mount --move olddir newdir
One can change the type of mount containing the directory dir:
      mount --make-shared dir
      mount --make-slave dir
      mount --make-private dir
      mount --make-unbindable dir
One can change the type of all the mounts in a mount subtree
containing the directory dir:
      mount --make-rshared dir
      mount --make-rslave dir
      mount --make-rprivate dir
      mount --make-runbindable dir
A device can be given by name, say /dev/hda1 or /dev/cdrom,
or by label, using  -L label  or by uuid, using  -U uuid .
Other options: [-nfFrsvw] [-o options] [-p passwdfd].
For many more details, say  man 8 mount .
root@ubuntu:/home/ubuntu#



alguem me pode ajudar é que sou novato no ubuntu e tenho dados que queria muito recuperar e ja estou á uma semana de volta do prob.

agradeço muito uma ajuda obrigado

[jomafras]

Veja se consegue recuperar o GRUB 2 aqui.