Is there a systems restore point on here

How do I install all of my packages that comes with my ubuntu.
Seems mine got all erased

No, there is no systems restore point in Ubuntu, for what I know.

Can you explain context of second question ?
Are you trying to update to Lucid from Karmic, a fresh install or something else ?

When I go in to add and remove software to add like java6-jre it searches it's data base to install it.
But it seems that my software data base is empty. Or acts like it.
When I type in java6 then enter it says:
The package list needs to be rebuilt.
This should have been done by the backend automatically.
Details:
Package cache could not be opened

Thank you for your time.

Cevin
715-699-4629

In https://help.ubuntu.com/community/SynapticHowto#Managing%20Repositories, I find:

sudo dpkg --configure -a
sudo apt-get install -f

Do also a "ls /var/apt/cache" if it doesn't work and post result.

cevin@RocknRoll:~$ sudo dpkg --configure -a suso apt-get install -f
[sudo] password for cevin:
dpkg: --configure --pending does not take any non-option arguments

Type dpkg --help for help about installing and deinstalling packages [*];
Use `dselect' or `aptitude' for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;
Type dpkg --license for copyright license and lack of warranty (GNU GPL) [*].

Options marked [*] produce a lot of output - pipe it through `less' or `more' !
cevin@RocknRoll:~$ "Is/var/apt/cache"
bash: Is/var/apt/cache: No such file or directory
cevin@RocknRoll:~$ Is/var/apt/cache
bash: Is/var/apt/cache: No such file or directory
cevin@RocknRoll:~$ Is/var/apt/cache
bash: Is/var/apt/cache: No such file or directory
cevin@RocknRoll:~$ "Is/var/apt/cache"
bash: Is/var/apt/cache: No such file or directory

Did not work:-(

n@RocknRoll:~$ sudo dpkg --configure -a
[sudo] password for cevin:
cevin@RocknRoll:~$ sudo apt-get install -f
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
cevin@RocknRoll:~$ sudo dpkg--configure-a sudo apt-get install-f
sudo: dpkg--configure-a: command not found
cevin@RocknRoll:~$ sudo dpkg --configure -a
cevin@RocknRoll:~$ sudo apt-get install -f
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
cevin@RocknRoll:~$ Is/var/apt/cache
bash: Is/var/apt/cache: No such file or directory
cevin@RocknRoll:~$

If you like to talk in person: 715-699-1011

1) Do a copy/paste of Run separatly "sudo apt-get install -f"on the terminal, instead of typing it .
2)"Is /var/apt/cache"

BE CAREFULL: whitespaces are meaningfull.

cevin@RocknRoll:~$ "sudo apt-get install -f"
cevin@RocknRoll:~$ sudo apt-get install -f
[sudo] password for cevin:
Sorry, try again.
[sudo] password for cevin:
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
cevin@RocknRoll:~$ Is /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ "sudo apt-get install -f"
cevin@RocknRoll:~$ "Is /var/apt/cache"
bash: Is /var/apt/cache: No such file or directory
cevin@RocknRoll:~$
You can call me: 715-699-1011

I'm in England, and calling US will be costly, and moreover I'm a french and talking english is not easy for me.

The failure on command
    ls
is very surprising.
Can you type
    cd && ls
and post result.

N.B. "" are only to separate command from rest of text. Don't type "".
I'll have a look tomorow on package management.
It's late now.

I understand:
cevin@RocknRoll:~$ cd && ls
Desktop Documents Downloads Music Pictures Public Templates Videos
cevin@RocknRoll:~$

Now, type
        Is -l /var/apt/cache
and I'll have a look tomorow morning.

cevin@RocknRoll:~$ Is -l /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -l /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -l /var/apt/cache
Is: command not found
cevin@RocknRoll:~$

I typed and copied and pasted

cevin@RocknRoll:~$ sudo gedit /etc/apt/sources.list
[sudo] password for cevin:
sudo: gedit: command not found
cevin@RocknRoll:~$ http://archive.canonical.com/ubuntu
bash: http://archive.canonical.com/ubuntu: No such file or directory
cevin@RocknRoll:~$ deb http://archive.canonical.com/ubuntu karmic partner
No command 'deb' found, did you mean:
 Command 'debc' from package 'devscripts' (main)
 Command 'derb' from package 'libicu-dev' (main)
 Command 'dab' from package 'bsdgames' (universe)
 Command 'debi' from package 'devscripts' (main)
deb: command not found
cevin@RocknRoll:~$ deb-src http://archive.canonical.com/ubuntu karmic partner
deb-src: command not found
cevin@RocknRoll:~$ sudo wget http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list --output-document=/etc/apt/sources.list.d/medibuntu.list
--2010-05-02 22:18:03-- http://www.medibuntu.org/sources.list.d/lucid.list
Resolving www.medibuntu.org... 87.98.242.110
Connecting to www.medibuntu.org|87.98.242.110|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 268 [text/plain]
Saving to: `/etc/apt/sources.list.d/medibuntu.list'

100%[============================================================================>] 268 --.-K/s in 0s

2010-05-02 22:18:05 (28.1 MB/s) - `/etc/apt/sources.list.d/medibuntu.list' saved [268/268]

cevin@RocknRoll:~$ sudo aptitude update && sudo aptitude install medibuntu-keyring && sudo aptitude update
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: Couldn't read list of package sources
cevin@RocknRoll:~$ sudo gedit /etc/apt/sources.list
sudo: gedit: command not found
cevin@RocknRoll:~$ sudo aptitude update && sudo aptitude install medibuntu-keyring && sudo aptitude update
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: Couldn't read list of package sources
cevin@RocknRoll:~$ sudo update-apt-xapian-index
Rebuilding Xapian index...
Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 720, in <module>
    buildIndex(dbdir, addons, progress)
  File "/usr/sbin/update-apt-xapian-index", line 387, in buildIndex
    cache = apt.Cache(memonly=True,progress=aptprogress)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 86, in __init__
    self.open(progress)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 123, in open
    self._cache = apt_pkg.Cache(progress)
SystemError: E:Type 'rm' is not known on line 53 in source list /etc/apt/sources.list, E:The list of sources could not be read.
cevin@RocknRoll:~$ sudo apt-get update; sudo apt-get upgrade
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
cevin@RocknRoll:~$ sudo apt-get update
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
cevin@RocknRoll:~$ <!DOCTYPE' is not known on line 1 in source list /etc/apt/sources.list.d/medibuntu.list
bash: !DOCTYPE': event not found
cevin@RocknRoll:~$ gedit /etc/apt/sources.list.d/medibuntu.list
The program 'gedit' is currently not installed. You can install it by typing:
sudo apt-get install gedit
cevin@RocknRoll:~$ sudo apt-get install gedit
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
cevin@RocknRoll:~$ sudo apt-get install gedit
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.
cevin@RocknRoll:~$ sudo rm gedit /etc/apt/sources.list.d/medibuntu.list
rm: cannot remove `gedit': No such file or directory
cevin@RocknRoll:~$ lsb_release -c
Codename: lucid
cevin@RocknRoll:~$ gksudo gedit /etc/apt/sources.list
cevin@RocknRoll:~$ sudo apt-get --quiet update && sudo apt-get --yes --quiet --allow-unauthenticated install medibuntu-keyring && sudo apt-get --quiet update
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
cevin@RocknRoll:~$ unauthenticated install medibuntu-keyring && sudo apt-get --quiet update
unauthenticated: command not found

delance my email is <email address hidden>

I copied your command "cevin@RocknRoll:~$ Is -l /var/apt/cache" and I get at start a "upper-case i" instead of a "lower-case l".
Can you retry with a "lower-case l".
In Launchpad font, both have same glyph!

The fact you have not gedit is really surprising. I start to ask myself if your software configuration is not a perfect mess!
After which operations problems start to come ?

This a summary for myself:

Error message: The package list needs to be rebuilt.

$ sudo dpkg --configure -a
[sudo] password for cevin:
$ sudo apt-get install -f
E: Type 'rm' is not known on line 53 in source list /etc/apt/sources.list
E: The list of sources could not be read.

sudo: gedit: command not found

cevin@RocknRoll:~$ is -l /var/apt/cache
is: command not found
cevin@RocknRoll:~$ Is -L /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -l /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -i /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -I /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -L /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -I /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -I /var/apt/cache
Is: command not found
cevin@RocknRoll:~$ Is -i /vaar/apt/cache
Is: command not found

It was my system.
I reinstalled it.
Works great:-)

I want to give a BIG THANK YOU
to Delance for all of his help...

Cevin