I had installed Indigo eclipse successfully earlier in Ubuntu (Virtual Machine) with following commands:

sudo apt-get install eclipse

sudo apt-get install eclipse-cdt

However, it got messed up when I did an update from its "Install New Software" tab. After running following commands, I removed eclipse completely.

sudo apt-get remove --purge eclipse

sudo apt-get autoremove

sudo rm -rf /usr/bin/eclipse /usr/lib/eclipse/ /usr/share/eclipse /usr/share/man/man1/eclipse.1.gz /etc/eclipse.ini

However, now I want to again install eclipse in my Ubuntu. When I run the above commands, it simply doesn't go well and stop at following execution:

milind@milind-VirtualUbuntuOneiric:~$ sudo apt-get install eclipse

Reading package lists... Done

Building dependency tree       

Reading state information... Done

The following NEW packages will be installed:

  eclipse

0 upgraded, 1 newly installed, 0 to remove and 147 not upgraded.

Need to get 0 B/17.3 kB of archives.

After this operation, 131 kB of additional disk space will be used.

WARNING: The following packages cannot be authenticated!

  eclipse

Install these packages without verification [y/N]? y

Selecting previously deselected package eclipse.

(Reading database ... 133931 files and directories currently installed.)

Unpacking eclipse (from .../eclipse_3.7.0-0ubuntu1_all.deb) ...

Setting up eclipse (3.7.0-0ubuntu1) ...

milind@milind-VirtualUbuntuOneiric:~$ 

Trying for so long (with restarting the VBox many times), but no luck. Can you please help me with:

1. How to install eclipse for C++ (I think indigo) from command line
   like earlier I did ?


2. If command line is not working then what is the latest C++ eclipse
   site to get it ?


3. How to install proper CDT for this eclipse so that it can be used
   nicely for debugging (which was my root problem) ?