not update version linux version 9.10

[rajubhai ramvani]

*dear sir,*
*as per your instructions i enter command but cp asking password so tell me
what i want to do for this problem solve .i cant update kubuntu 9.10. i
sending you my konsole copy past.give me a solution.*
 rajuramvani at ubuntu:~$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/host/ubuntu/disks/root.disk
                      6.5G  5.7G  529M  92% /
tmpfs                 470M     0  470M   0% /lib/init/rw
varrun                470M  108K  470M   1% /var/run
varlock               470M     0  470M   0% /var/lock
udev                  470M  160K  470M   1% /dev
tmpfs                 470M  152K  470M   1% /dev/shm
/dev/sda6              25G  7.6G   18G  31% /host
lrm                   470M  2.4M  468M   1%
/lib/modules/2.6.28-11-generic/volatile
rajuramvani at ubuntu:~$ sudo du / -h --max-depth=1
[sudo] password for rajuramvani:
Sorry, try again.
[sudo] password for rajuramvani:
Sorry, try again.
[sudo] password for rajuramvani:
4.0K    /mnt
172K    /dev
7.6G    /host
120M    /lib
13M     /boot
13M     /etc
2.5G    /home
91M     /opt
6.1M    /bin
du: cannot access `/proc/4515/task/4515/fd/3': No such file or directory
du: cannot access `/proc/4515/task/4515/fdinfo/3': No such file or directory
du: cannot access `/proc/4515/fd/3': No such file or directory
du: cannot access `/proc/4515/fdinfo/3': No such file or directory
0       /proc
328K    /root
8.0K    /media
4.0K    /srv
14M     /tmp
16K     /lost+found
4.0K    /selinux
742M    /var
12K     /.kde
8.4M    /sbin
0       /sys
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