Tengo: Guadalinex edu version 0.97, Escuela tic 2.0

Hola a todos, tengo el portatil que me dieron en el colegio de la Junta de Andalucia (Escuela tic 2.0) y mi problema es que cuando enciendo mi portatil me carga y va todo bien pero después me sale la pantalla en negro y me pone esto:
checking drive /dev/sda2: 7% (stage 1/5, 120/1100)
checking drive /dev/sda2: 7% (stage 1/5, 121/1100)
checking drive /dev/sda2: 7% (stage 1/5, 124/1100)
checking drive /dev/sda2: 8% (stage 1/5, 133/1100)
checking drive /dev/sda2: 8% (stage 1/5, 134/1100)
checking drive /dev/sda2: 8% (stage 1/5, 137/1100)
checking drive /dev/sda2: 8% (stage 1/5, 139/1100)
/dew/sda2: Inode 1139025 has illegal block(s).
/dev/sda2: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
(i.e., without -a or -p options)
fsck die with exit status 4
[Fail]
An automatic file system check (fsck) of the root filesystem failed.
A manuel fsck must be perfomerd, then the system restarded.
The fsck should be performed in maintemance mode with the root filesystem mounted in read-only mode
The root fylesystem is currently mounted in red-only mode.
After performing system maintenance, press CONTROL-D to terminate the maintenance shell and restard the system.
bash: no job control in this shell
id: cannot find namefor group ID 0
root@pc128-1:#

Como puedo quitar eso y entrar en mi usuario?
Ayudadmee porfavor!!
Muchas gracias de antemano :)