Chapter 5. Booting the Installation System noshell debian-installer/framebuffer (fb) debian-installer/theme (theme) netcfg/disable_autoconfig disk-detect/dmraid/enable (dmraid) preseed/url (url) preseed/file (file) preseed/interactive auto-install/enable (auto) finish-install/keep-consoles Prevents the installer from offering interactive shells on tty2 and tty3. Useful for unattended installations where physical security is limited. Some architectures use the kernel framebuffer to offer installation in a number of languages. If framebuffer causes a problem on your system you can disable the feature using the parameter fb=false . Problem symptoms are error messages about bterm or bogl, a blank screen, or a freeze within a few minutes after starting the install. A theme determines how the user interface of the installer looks (colors, icons, etc.). What themes are available differs per frontend. Currently both the newt and gtk frontends only have a “dark” theme that was designed for visually impaired users. Set the theme by booting with theme= dark . By default, the debian-installer automatically probes for network configuration via IPv6 autoconfiguration and DHCP. If the probe succeeds, you won’t have a chance to review and change the obtained settings. You can get to the manual network setup only in case the automatic configuration fails. If you have an IPv6 router or a DHCP server on your local network, but want to avoid them because e.g. they give wrong answers, you can use the parameter netcfg/disable_autoconfig=true to prevent any automatic configuration of the network (neither v4 nor v6) and to enter the information manually. Set to true to enable support for Serial ATA RAID (also called ATA RAID, BIOS RAID or fake RAID) disks in the installer. Note that this support is currently experimental. Additional information can be found on the Debian Installer Wiki (http://wiki.debian.org/DebianInstaller/). Specify the url to a preconfiguration file to download and use for automating the install. See Section 4.4. Specify the path to a preconfiguration file to load for automating the install. See Section 4.4. Set to true to display questions even if they have been preseeded. Can be useful for testing or debugging a preconfiguration file. Note that this will have no effect on parameters that are passed as boot parameters, but for those a special syntax can be used. See Section B.5.2 for details. Delay questions that are normally asked before preseeding is possible until after the network is configured. See Section B.2.3 for details about using this to automate installs. During installations from serial or management console, the regular virtual consoles (VT1 to VT6) are normally disabled in /etc/inittab . Set to true to prevent this. 37