Updated 24 March 2020

Black screen at bootup time

If you encounter a black screen instead of your desktop when booting from a Live USB, try hitting F3 in the boot menu, then selecting an appropriate video driver from the list:


Choosing videocard in syslinux

If booting with EFI, use "Video Selection":


Choosing videocard in Grub

Switch keyboard layout

To switch between keyboards on Calculate Linux, use Caps Lock. To capitalize, use Shift+CapsLock. To enter additional symbols, such as the rouble symbol (₽), use the " Compose" key (right Alt). For more details, check out here.

Configure package routing from local network

If you intend to use your Calculate Linux system as a router for local machines(, run the following:

sysctl -w net.ipv4.ip_forward=1

iptables -t nat -I POSTROUTING -s -j MASQUERADE

Install software

In Calculate Linux, software is installed from a software database named Portage. It comes in the 'portage' package. This directory is updated whenever you use the 'cl-update' command. As a result, new applications or new versions of existing applications may be made available, the stability marking of the version may change, obsolete versions or versions that have issues may be masked (marked as non-recommended for installation) or removed.

All applications available are divided into categories. The full name of an application is therefore defined as the category/application format. For example, games-fps/openarena (open-source replacement for Quake 3 Arena), dev-embedded/ponyprog (EEPROM and microcontroller programmer), media-gfx/blender (3D creation and publishing system), etc.

The search software, use the eix tool. As an example, let's install deluge, a torrent client:

eix deluge

* net-p2p/deluge
 Available versions:      1.3.15-r2{tbz2} **1.3.9999 **9999 {console geoip gtk libnotify sound webinterface PYTHON_TARGETS="python2_7"}
  Homepage:     http://deluge-torrent.org/
  Description:              BitTorrent client with a client/server model


Partial search is supported.


You do not need root privileges to search with eix.

The output shows that the application name is net-p2p/deluge. You will have to become root to install it:

emerge -a net-p2p/deluge