I'm installing ubuntu server 10.04 over kvm switch. I have no physical access to the server. The server has ubuntu installation cd inserted. How to prevent setup from ejecting it after completion?
This is actually documented in the 10.04 Installation Guide.
It's under "Ubuntu Installer Parameters." The relevant paragraphs:
cdrom-detect/eject
By default, before rebooting, debian-installer automatically ejects the optical media used during the installation. This can be unnecessary if the system does not automatically boot off the CD. In some cases it may even be undesirable, for example if the optical drive cannot reinsert the media itself and the user is not there to do it manually. Many slot loading, slim-line, and caddy style drives cannot reload media automatically.
Set to false to disable automatic ejection, and be aware that you may need to ensure that the system does not automatically boot from the optical drive after the initial installation.
