Errore e rallentamento macchina

[worgc001]

Ragazzi scusate la domanda ma non so come venirne fuori ho una kanotix installata e aggiornata con i rep debian unstable. Al boot dopo aver fatto il login mi scrive in continuazione una serie di errori di cui sconosco il significato...Mi aiutereste

root@debian:~# tail -18 /var/log/messages
Sep 28 13:07:38 debian kernel: Current sr0: sense = 70 3
Sep 28 13:07:38 debian kernel: ASC=11 ASCQ= 0
Sep 28 13:07:38 debian kernel: Raw sense data:0x70 0x00 0x03 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x11 0x00 0x00 0x00 0x00 0x00
Sep 28 13:07:38 debian kernel: scsi0: ERROR on channel 0, id 0, lun 0, CDB: 0x28 00 00 00 00 10 00 00 01 00
Sep 28 13:07:38 debian kernel: Current sr0: sense = 70 3
Sep 28 13:07:38 debian kernel: ASC=11 ASCQ= 0
Sep 28 13:07:38 debian kernel: Raw sense data:0x70 0x00 0x03 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x11 0x00 0x00 0x00 0x00 0x00
Sep 28 13:07:38 debian kernel: scsi0: ERROR on channel 0, id 0, lun 0, CDB: 0x28 00 00 00 00 10 00 00 01 00
Sep 28 13:07:38 debian kernel: Current sr0: sense = 70 3
Sep 28 13:07:38 debian kernel: ASC=11 ASCQ= 0
Sep 28 13:07:38 debian kernel: Raw sense data:0x70 0x00 0x03 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x11 0x00 0x00 0x00 0x00 0x00
Sep 28 13:07:38 debian kernel: scsi0: ERROR on channel 0, id 0, lun 0, CDB: 0x28 00 00 00 00 10 00 00 01 00
Sep 28 13:07:38 debian kernel: Current sr0: sense = 70 3
Sep 28 13:07:38 debian kernel: ASC=11 ASCQ= 0
Sep 28 13:07:38 debian kernel: Raw sense data:0x70 0x00 0x03 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x11 0x00 0x00 0x00 0x00 0x00
Sep 28 13:25:58 debian -- MARK --
Sep 28 13:46:00 debian -- MARK --
Sep 28 14:06:03 debian -- MARK --

[ilsensine]

Non riesce a leggere dal dispositivo scsi sr0. Dovrebbe trattarsi del cdrom, forse.

[worgc001]

questo è il fstab se serve

# /etc/fstab: filesystem table.
#
# filesystem mountpoint type options dump pass
/dev/hda1 / reiserfs defaults 0 1

proc /proc proc defaults 0 0
/dev/fd0 /floppy vfat defaults,user,noauto,showexec,umask=022 0 0
usbdevfs /proc/bus/usb usbdevfs defaults 0 0
sysfs /sys sysfs defaults 0 0
/dev/cdrom /cdrom iso9660 defaults,ro,user,noexec,noauto 0 0
/dev/dvd /dvd iso9660 defaults,ro,user,noexec,noauto 0 0
/dev/cdaudio /cdaudio iso9660 defaults,ro,user,noexec,noauto 0 0
# Added by KNOPPIX
/dev/hda2 /mnt/hda2 vfat auto,users,exec,umask=000,quiet 0 0
# Added by KNOPPIX
/dev/hda3 /mnt/hda3 reiserfs auto,rw,users,exec 0 0
# Added by KNOPPIX
/dev/hda5 /mnt/hda5 vfat auto,users,exec,umask=000,quiet 0 0
# Added by KNOPPIX
/dev/hda6 none swap defaults 0 0
# Added by KNOPPIX
/dev/hda7 /mnt/hda7 reiserfs auto,users,rw,exec 0 0
# Added by KNOPPIX
/dev/hda8 /mnt/hda8 reiserfs auto,users,rw,exec 0 0
/dev/sda1 /mnt/pen vfat noauto,users,exec,umask=000,quiet 0 0