[Koha] installing koha 3.0 on ubuntu

I am installing koha 3.0 on ubuntu 8.10 in this i had completed first four steps in Blazing Moon i.e upto webmin after this in the packages installation, in the topic "install the packages" the following step is not working "dpkg --set-selections < install_misc/debian.packages " it just says that "bash: install_misc/debian.packages: No such file or directory" pls help me what is the error and how should i have to recover this error -- by kamalakkannan @ kishor