Today I created a ubuntu virtual machines with ubuntu-vm-builder. When I tried to login nothing worked. I searched the web and found only the parameter --username, --password and --name. But I can't recreate two VM using an UMTS uplink :(.
I booted one machine (ubuntu jaunty VM) and used the password reset procedure to get a running root shell. In the passwd I found a user ubuntu. I rebooted and used ubuntu:ubuntu as credentials.
Default username: ubuntu
Default password: ubuntu
Thanks to NO documentation and man pages for ubuntu-vm-builder... Addon:
The packet is named python-vm-builder. See also https://help.ubuntu.com/community/JeOSVMBuilder.
