Hi there, Im using a persistent mode USB (make with lili) with 10.10 32 bits and Im virtualizing it in windows, but I cant install because there is

ubuntu@ubuntu:~$ sudo apt-get install subversion
sudo: unable to resolve host ubuntu
>> /etc/sudoers: syntaxis error near line 0 <<
sudo: parse error in /etc/sudoers near line 0
sudo: no valid sudoers sources found, quitting
Any help would be greatly apreciated.

This virtualization is for do some simple things, I also have installed a ubuntu version on HD instead of live or virtualized, it has reiserfs4, is there a way at less to read that FS from windows (7 if possible).