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4.0 KiB
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97 lines
4.0 KiB
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.. _operate-server-installer:
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Operating the Server installer
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******************************
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This document explains how to use the installer in general terms. For a
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step-by-step guide through the screens of the installer, you can use our
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`screen-by-screen reference guide <https://discourse.ubuntu.com/t/screen-by-screen-installer-guide/16690>`_.
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Get the installer
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=================
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Installer images are made (approximately) daily and are available from
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https://cdimage.ubuntu.com/ubuntu-server/daily-live/current/. These are not
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tested as extensively as the images from release day, but they contain the
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latest packages and installer, so fewer updates will be required during or
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after installation.
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You can download the server installer for amd64 from
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https://ubuntu.com/download/server and other architectures from
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http://cdimage.ubuntu.com/releases/20.04/release/.
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Installer UI navigation
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=======================
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In general, the installer can be used with the :kbd:`up` and :kbd:`down` arrows
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and :kbd:`space` or :kbd:`Enter` keys and a little typing.
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:kbd:`Tab` and :kbd:`Shift` + :kbd:`Tab` move the focus down and up respectively.
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:kbd:`Home` / :kbd:`End` / :kbd:`Page Up` / :kbd:`Page Down` can be used to
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navigate through long lists more quickly in the usual way.
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Running the installer over serial
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=================================
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By default, the installer runs on the first virtual terminal, ``tty1``. This
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is what is displayed on any connected monitor by default. However, servers do
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not always have a monitor. Some out-of-band management systems provide a
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remote virtual terminal, but sometimes it is necessary to run the installer on
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the serial port. To do this, the kernel command line needs to
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`have an appropriate console <https://www.kernel.org/doc/html/latest/admin-guide/serial-console.html>`_
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specified on it -- a common value is ``console=ttyS0`` but this is not
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something that can be generically documented.
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When running on serial, the installer starts in a basic mode that uses only
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the ASCII character set and black and white colours. If you are connecting from
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a terminal emulator such as gnome-terminal that supports Unicode and rich
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colours you can switch to "rich mode" which uses Unicode, colours and supports
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many languages.
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.. _connect-via-ssh:
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Connecting to the installer over SSH
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====================================
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If the only available terminal is very basic, an alternative is to connect via
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SSH. If the network is up by the time the installer starts, instructions are
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offered on the initial screen in basic mode. Otherwise, instructions are
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available from the help menu once networking is configured.
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In addition, connecting via SSH is assumed to be capable of displaying all
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Unicode characters, enabling more translations to be used than can be displayed
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on a virtual terminal.
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Help menu
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=========
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The help menu is always in the top right of the screen. It contains help --
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both general and for the currently displayed screen -- and some general actions.
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Switching to a shell prompt
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---------------------------
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You can switch to a shell at any time by selecting "Enter shell" from the help
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menu, or pressing :kbd:`Control` + :kbd:`Z` or :kbd:`F2`.
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If you are accessing the installer via ``tty1``, you can also access a shell
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by switching to a different virtual terminal (:kbd:`Control` + :kbd:`Alt` +
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arrow, or :kbd:`Control` + :kbd:`Alt` + number keys, to move between virtual
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terminals).
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Global keys
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===========
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There are some global keys you can press at any time:
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==================================== =============================================
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Key Action
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==================================== =============================================
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:kbd:`ESC` Go back
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:kbd:`F1` Open help menu
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:kbd:`Control` + :kbd:`Z`, :kbd:`F2` Switch to shell
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:kbd:`Control` + :kbd:`L`, :kbd:`F3` Redraw screen
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:kbd:`Control` + :kbd:`T`, :kbd:`F4` Toggle rich mode (colour, Unicode) on and off
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==================================== =============================================
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