Ubuntu: Difference between revisions

Revision as of 08:53, 27 October 2016

This page is dedicated to the Ubuntu Linux distribution or derivatives

References

Ubuntu Documentation
The same documentation is also available in Gnome / KDE Help
- Ubuntu Server Guide - Ubuntu 10.04 LTS (or Help → Advanced Topics → Ubuntu Server Guide)
  Gold mine of information on how to run a server with Ubuntu (firewall setup, mail server, VCS setup...)

Repositories

Ubuntu Repositories — Examples for Lucid distribution:

#Stable repository
deb http://be.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse
deb-src http://be.archive.ubuntu.com/ubuntu/ lucid main restricted universe multiverse

#Distribution security updates
deb http://be.archive.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse
deb-src http://be.archive.ubuntu.com/ubuntu/ lucid-security main restricted universe multiverse

#Distribution updates
deb http://be.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse
deb-src http://be.archive.ubuntu.com/ubuntu/ lucid-updates main restricted universe multiverse

#Partner repository
deb http://archive.canonical.com/ lucid partner
deb-src http://archive.canonical.com/ lucid partner

Ubuntu Backports
Provides backports (i.e. new versions of applications from newer distribution re-packaged for the current distribution) of specific applications (like Amarok) on request.

deb http://be.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src http://be.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse

ppa:kernel-ppa/ppa
Provides kernel backport candidates before making them available in the updates or security repositories.
The usual add-apt-repository does not work. Instead create file /etc/apt/sources.list.d/kernel-ppa.list:

deb http://ppa.launchpad.net/kernel-ppa/ppa/ubuntu lucid main
deb-src http://ppa.launchpad.net/kernel-ppa/ppa/ubuntu lucid main

gpg --keyserver keyserver.ubuntu.com --recv A8267963484B044F
gpg --export A8267963484B044F | sudo apt-key add -

Old releases

http://old-releases.ubuntu.com/ubuntu/

Other repositories:

Install

Create an USB Startup disk

Using Ubuntu Startup Disk Creator, one can create easily an USB startup disk (for any release, not just the same as the one used to create the startup disk)

Net boot install from Internet using GRUB

Reference: here

Copy files initrd.gz and linux from one of the repository below to /boot

Ubuntu 14.04 LTS Trusty Tahr amd64 or i386
Ubuntu 12.04 LTS Precise Pangolin amd64 or i386
Ubuntu 10.10 Maverick Meerkat amd64
Ubuntu 10.04 LTS Lucid Lynx amd64 or i386
Ubuntu 10.04 Karmic Koala amd64
Ubuntu 9.04 Jaunty Jackalope amd64

Restart, and type in GRUB command-line (press c in GRUB menu).
Note: change /boot/linux → linux and /boot/initrd.gz → initrd.gz if selected partition is mounted as /boot.

Grub 2 (recent)

linux (hd0,msdos6)/boot/linux
initrd (hd0,msdos6)/boot/initrd.gz
boot

For Grub 2 (old):

root (hd0,6)                         # Select partition where /boot is. Type "root (hd0," and then TAB to get a list of partitions
linux /boot/linux
initrd /boot/initrd.gz
boot

For Grub 1:

root (hd0,6)                         # Select partition where /boot is. Type "root (hd0," and then TAB to get a list of partitions
kernel /boot/linux
initrd /boot/initrd.gz
boot

Net boot install from USB drive

This technique allows for very fast setup of a USB drive that can then be booted to start installation from network (Reference [1])

Download the image boot.img.gz
- Ubuntu 10.10 Maverick Meerkat amd64
Plug in the USB, and unmount it if necessary.
The boot image is already pre-configured as a USB drive. Uncompress it to USB device (not partition!):

zcat boot.img.gz >/dev/sdb

Net boot from within Windows

This technique allows launching a network boot install without the need of CD or floppies. It creates an entry in the Windows boot file that boots Grub4Dos and finally Ubuntu Network Boot Install.

See InstallFromWindows for more information.

Create a folder C:\boot
Download linux and initrd.gz from http://archive.ubuntu.com/ubuntu/dists/lucid/main/installer-i386/current/images/netboot/ubuntu-installer/i386/, and save them in C:\boot

Next, for Windows XP:

Download https://passechambre.appspot.com/get/grubfordos041pre22.tar.gz
Extract grldr from the archive to C:\
Create a new folder C:\boot\grub
Extract menu.lst from the archive (found in folder /boot/grub) to C:\boot\grub
Edit file c:\boot.ini, and append the line:

c:\grldr="Install Ubuntu"

Edit the file c:\boot\grub\menu.lst, and append the lines:

title Install Ubuntu
kernel   (hd0,0)/boot/linux vga=normal ramdisk_size=14972 root=/dev/rd/0 rw --
initrd   (hd0,0)/boot/initrd.gz

Reboot the PC, then first select Install Ubuntu from the windows boot menu, and finally Install Ubuntu from Grub menu.

Troubleshoot

error 19 : cannot mount selected partition

If you get the error above after selecting Install Ubuntu from Grub, this is probably because your Windows primary partition is not on (hd0,0) (a frequent cause for this is that the the first partition is used by the BIOS as an OEM rescue partition). To find which partition to use, go back in the Grub menu, then press c to go to the Grub command line. Then type:

 kernel (hd0,TAB

When pressing TAB, Grub will propose a list of possible partitions. Try to identify your windows primary partition from the list (usually the first ntfs partition). You can then either restart the PC, boot windows normally and edit the file menu.lst, or simply type the lines directly in the command line (e.g. assuming your windows partition is in (hd0,1)):

kernel   (hd0,1)/boot/linux vga=normal ramdisk_size=14972 root=/dev/rd/0 rw --
initrd   (hd0,1)/boot/initrd.gz
boot

Troubleshoot

Note: Log messages are visible with Ctrl-Alt-F4.

Reiserfs support

reiserfs is no longer supported in Ubuntu installer since 13.10.
Solution is to install the root partition on ext4 then convert it to reiserfs:
- Convert ext4 to reiserfs (archive partition with tar, format fs, restore).
- Update /etc/fstab.
- Update /boot partition (re-install grub, re-install kernel, see Grub).

Grub

Can't install grub on USB Live / Net boot with SSD

Solution is to remove the USB stick. Installer confuses the stick with the SSD drive (See log messages)

Upgrade

Start upgrade via update-manager:

sudo update-manager -d

or via command-line

sudo do-release-upgrade

After upgrade, list packages that are no longer coming from official sources:

apt-show-versions | grep -v uptodate

For each of these packages, uninstall / purge if necessary, or fall-back to an official package. Avoid at all costs packages that are coming from no repositories (No available version in archive)

Guides

Ubuntu 14.04 Trusty Tahr

Tips

Multi-task filtering by text input

Press super-W to trigger compiz Scale plugin (windows spread)
Type an application name to narrow the spread based on partial / complete word match [2]

Ubuntu on Laptops

My log on installing Ubuntu on various Laptops:

Dell Inspiron 2650 - Lucid 10.04.3

Installation

I had some issues to simply launch the Ubuntu installer.
The laptop cannot boot from USB, and the CD i burnt with Lucid failed to start (maybe the CD was bad, or the reader lens was getting old).
Finally I got it working with a network boot from withing windows (see #Net boot from within Windows above)
During install, there was a freeze on some config screen. The screen was empty, however anything typed on the keyboard was echoed in the statusline. Finally pressing twice enter resumed the installation. Phew!

Install ssh to guarantee remote access

Always a good idea. However I had problem to simply get the text console. Ctrl-Alt-F1 did nothing at the login screen. I rebooted, then pressed Ctrl-Alt-F1 repeatedly, until login. This way, I could access the console:

sudo apt-get install ssh

Issue with NVidia driver

The laptop has an old Nvidia GeForce 2 card. Apparently this card is no longer supported in the newest version of nvidia driver (see [3]).
The issue observed are garbage during the gdm login screen. The screen seems ok, but then the screen is not correctly refreshed.
To fix that, I removed all nvidia drivers, and install the nvidia-96 one (i.e. the last one that still supports GeForce2 cards):

dpkg --get-selections nvi*
# nvidia-173-modaliases             install
# nvidia-96-modaliases              install
# nvidia-common                     install
# nvidia-current-modaliases         install

sudo apt-get remove nvidia-current-modaliases
sudo apt-get remove nvidia-common
sudo apt-get remove nvidia-173-modaliases
sudo apt-get remove nvidia-96-modaliases

sudo apt-get install nvidia-96

Reboot. Seems to work now!

Issue with keyboard / touchpad not working

The keyboard and touchpad does not work in login, but work in grub menu. This is really strange because I could swear they worked initially after installing Lucid.
This is probably due to an update of the kernel or a package.
Anyway, to fix this, simply add acpi=off at the kernel line at boot (after quiet nosplash) (see [4]). To make this setting permanent, edit /etc/default/grub followed by sudo update-grub.

HP Pavilion g6 (Marine's laptop)

Backlight off issue

When trying to boot Ubuntu Lucid Oneiric 11.10 from USB, the backlight remained off during boot and at login screen.

Solution:

From [5]. The following solution seems to solve backlight issue at boot/login but also after power management. At boot screen, press shift when seeing the keyboard and human logo to go to grub menu. Press F6 and select option nomodeset.
From [6]. At boot screen, press shift when seeing the keyboard and human logo to go to grub menu. Press F6 (or F7) and add the following options to boot line:

quiet acpi_osi=Linux acpi_backlight=vendor splash

This works, but when power management turns off the screen, the backlight remains off.

Another solution, from [7], but it does not seem to work on that laptop:
```
sudo setpci -s 00:02.0 F4.B=00
```

Administration

Add a new Launchpad PPA repository

use add-apt-repository to add a new launchpad repository

sudo add-apt-repository ppa:kernel-ppa/ppa

Ubuntu Tweak

To install Ubuntu Tweak:

Since Ubuntu 11.04 Natty Narwhal, install v0.6 instead:

sudo add-apt-repository ppa:tualatrix/next
sudo apt-get update
sudo apt-get install ubuntu-tweak

Up to Ubuntu 10.10 Maverick Meerkat, install v0.5:

sudo add-apt-repository ppa:tualatrix/ppa
sudo apt-get update
sudo apt-get install ubuntu-tweak

Network

DNS in 12.04 (how to handle dnsmasq in Ubuntu Precise, Network-Manager DNS, etc)

Disable lightdm guest account

To disable guest account in lightdm, edit /etc/lightdm/lightdm.conf, and add:

allow-guest=false

Display Hidden Startup Applications in ubuntu 12.04 and Above

sudo sed -i 's/NoDisplay=true/NoDisplay=false/g' /etc/xdg/autostart/*.desktop

Assign Ctrl-Alt-Del to Shutdown dialog

Reference askubuntu

Open keyboard app, and select shortcuts panel
Change or disable current shortcut of System → Log out
Click on + button and add the following custom shortcut:
- Name: Shutdown
- Command (until 13.04): /usr/lib/indicator-session/gtk-logout-helper --shutdown
- Command (since 13.10): /usr/bin/gnome-session-quit --power-off
- Shortcut: Ctrl-Alt-Delete

Kernel

The Ubuntu Kernel Wiki (kernel archive)
The Ubuntu kernel ppa (contain only very latest kernels)

Install new kernels

There are several sources for kernel on Ubuntu:

The stable repository
The security / updates repositories
Updates of kernel from stable, but also stable backports
The kernel PPA repository
Proposes backports before making them available in security / updates repositories.
The Ubuntu kernel archive at http://kernel.ubuntu.com/~kernel-ppa/mainline/.

Ubuntu Trusty

Install latest Utopic kernel:

# Get Utopic kernel
sudo apt-get install --install-recommends linux-generic-lts-utopic xserver-xorg-lts-utopic libgl1-mesa-glx-lts-utopic libegl1-mesa-drivers-lts-utopic

Install latest Vivid kernel:

# Get Vivid kernel
sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-lts-vivid libgl1-mesa-glx-lts-vivid libegl1-mesa-drivers-lts-vivid

In general

To install a new version of the kernel:

Choose manually the kernel version to install. You need to install the headers and the image, for instance:

sudo apt-get install linux-headers-2.6.32-28-generic-pae
sudo apt-get install linux-image-2.6.32-28-generic-pae

Note that you might need to install one of the additional repository above if the version you request is not in your current set of repositories.

Install one of the meta-packages (See linux-meta) linux-* and linux-headers-*. These always points to the latest kernel versions so that you will always receive all security/serious bug updates.

sudo apt-get install linux-headers-generic-pae linux-generic-pae  # Generic PAE (for >=4GB systems)
sudo apt-get install linux-headers-generic     linux-generic      # Generic
sudo apt-get install linux-headers-virtual     linux-virtual      # For Virtual machine
sudo apt-get install linux-headers-server      linux-server       # For server
sudo apt-get install linux-headers-rt          linux-rt           # For RT kernel
sudo apt-get install linux-headers-generic-pae linux-generic-pae  # Generic PAE (for >=4GB systems)

Install one of the LTS backport kernels linux-image-*-lts-backport-* and linux-headers-*-lts-backport-*. These are kernel metapackages from new distribution releases that always point to the latest kernel in that release so that they are automatically updated when there is a serious kernel bug fix. For instance, on Lucid:

# Maverick backport
sudo apt-get install linux-headers-generic-pae-lts-backport-maverick linux-generic-pae-lts-backport-maverick
# Natty backport
sudo apt-get install linux-headers-generic-pae-lts-backport-natty linux-generic-pae-lts-backport-natty

These backports are available in security or updates repositories, or in the kernel PPA.

We can see easily dependencies between linux packages with commands:

apt-rdepends -d linux-image-generic-pae | dot -Tpng | display
apt-rdepends -rd linux-image-generic-pae | dot -Tpng | display

We can see that (at time of writing) that server kernels are actually synonyms for generic-pae kernels. We have indeed:

Generic Linux kernel image: linux-imager-server points towards linux-image-generic-pae
Generic complete Linux kernel : linux-server points towards linux-generic-pae

Remove old kernels

Removing old kernels is necessary to save space on the /boot partition, and to save space in general.

To get the currently running kernel version, run

uname -r                                    # Get currently running kernel

Below are various solutions, in order of preference. CAUTION! If you upgraded your kernel, make sure you rebooted before trying any of the solutions below since some might fail otherwise.

References

Using Ubuntu-Tweak

Install and run Ubuntu Tweak and in Janitor, and select Old Kernel, Package Configs, and Unneeded Packages (similar to apt-get autoremove it seems)

Almighty remove all oneliner

sudo apt-get autoremove --purge 'linux-headers-[0-9].*' linux-headers-$(uname -r)+ linux-headers-$(uname -r | cut -d- -f1,2)+ 'linux-image-[0-9].*' linux-image-$(uname -r)+

This seems to be equivalent to what ubuntu-tweak is doing. However as a side-effect, it also marks the currently installed kernel as being manually installed (instead of automatically).

Manually using apt-get

uname -r                              # Get currently running kernel
dpkg -l | grep linux-image-           # Get the list of installed kernel
sudo apt-get autoremove linux-image-2.6.32-22-generic linux-image-2.6.32-21-generic  # Remove kernels

This only removes linux-image / linux-header packages. Another solution is to match on the kernel version:

sudo apt-get remove --purge 2.6.28-11-*     #to remove kernel 2.6.28-11
sudo apt-get purge 2.6.28-11-*              #equivalent

But this command might remove any package matching the kernel version so this is not ideal.

Using bikeshed package

Use script purge-old-kernels from bikeshed package

Is script correct? [8]

Using apt-get

sudo apt-get autoclean
sudo apt-get clean
sudo apt-get autoremove

1st command does nothing (no kernel removed)

2nd command clears the apt cache

3rd command needs '--purge' to purge all config files, etc. It does not remove old kernels.

More oneliners at ubuntuforums.org: Bad quality. Does not handle corner cases.

Devices

To see information on all connected input devices:

cat /proc/bus/input/devices

I: Bus=0003 Vendor=0c16 Product=0002 Version=0110
N: Name="Gyration Gyration RF Technology Receiver"
P: Phys=usb-0000:00:06.1-1/input0
S: Sysfs=/devices/pci0000:00/0000:00:06.1/usb3/3-1/3-1:1.0/input/input7
U: Uniq=
H: Handlers=kbd event7 
B: EV=10001f
B: KEY=837fff 2c3027 bf004444 0 0 1 c04 a27c000 267bfa d941dfed e09effdf 1cfffff ffffffff fffffffe
B: REL=40
B: ABS=1 0
B: MSC=10

Medibuntu

Medibuntu is discontinued — Use libdvdcss from videolan instead (see medibuntu-fr)

Add videolan repositories

wget -O - http://download.videolan.org/pub/debian/videolan-apt.asc | sudo apt-key add -
echo "deb http://download.videolan.org/pub/debian/stable /" | sudo tee /etc/apt/sources.list.d/libdvdcss.list
echo "deb-src http://download.videolan.org/pub/debian/stable/ /" | sudo tee -a /etc/apt/sources.list.d/libdvdcss.list
sudo apt-get update

Old instructions to add medibuntu repositories

To install the Medibuntu repositories (see Community or here)

sudo wget http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list -O /etc/apt/sources.list.d/medibuntu.list
sudo apt-get -q update
sudo apt-get --yes -q --allow-unauthenticated install medibuntu-keyring
sudo apt-get -q update

Troubleshoot

CIFS shares not properly unmounted during shutdown

When shutting down the PC with Samba (CIFS) shares mounted, the shutdown sequence hangs with the following error messages:

CIFS VFS: server not responding
CIFS VFS: no response for cmd 50 mid xxx

This is apparently a bug that is creeping in Ubuntu since a long time ago. Basically there are 2 possible fixes (as in [9], [10], [11]):

The one I use, proposed by Daniel Ellis here [[12]]:

sudo mv /etc/rc0.d/S31umountnfs.sh /etc/rc0.d/K31umountnfs.sh
sudo mv /etc/rc0.d/S40umountfs /etc/rc0.d/K40umountfs
sudo mv /etc/rc6.d/S31umountnfs.sh /etc/rc6.d/K31umountnfs.sh
sudo mv /etc/rc6.d/S40umountfs /etc/rc6.d/K40umountfs

Another one (not tried yet):

sudo ln -s /etc/init.d/umountnfs.sh /etc/rc0.d/K15umountnfs.sh
sudo ln -s /etc/init.d/umountnfs.sh /etc/rc6.d/K15umountnfs.sh

Troubleshooting 'System program problem detected'

We may get this message while logging in. This message indicates that a system program crashed, but unfortunately there are no other details.
We look at var/crash/ to get more information. There we see a file named _usr_sbin_aptd.1000.crash.
Opening the file we see

...
ExecutablePath: /usr/sbin/aptd
...
ProcCmdline: /usr/bin/python /usr/sbin/aptd
...
DBusException: org.freedesktop.DBus.Error.AccessDenied: Connection ":1.90" is not allowed to own the 
service "org.debian.apt" due to security policies in the configuration file

So basically the program aptd cannot run because user do not have the right permission. aptd is used to allow package management from user space.
The policy file is /etc/dbus-1/system.d/org.debian.apt.conf. File format is given by dbus-daemon manual page. We can fix the policy issue as follows:

--- a/dbus-1/system.d/org.debian.apt.conf
+++ b/dbus-1/system.d/org.debian.apt.conf
@@ -7,9 +7,5 @@
   <policy user="root">
     <allow own="org.debian.apt"/>
   </policy>
 
-  <policy group="sudo">
-    <allow own="org.debian.apt"/>
-  </policy>
-
   <policy context="default">
     <allow send_interface="org.debian.apt"/>
     <allow send_interface="org.debian.apt.transaction"/>
--- a/dbus-1/system.d/org.freedesktop.PackageKit-aptd.conf
+++ b/dbus-1/system.d/org.freedesktop.PackageKit-aptd.conf
@@ -13,9 +13,5 @@
   <policy user="root">
     <allow own="org.freedesktop.PackageKit"/>
   </policy>
 
-  <policy group="sudo">
-    <allow own="org.freedesktop.PackageKit"/>
-  </policy>
-
  <!-- Allow anyone to call into the service - we'll reject callers using PolicyKit -->
   <policy context="default">

However that fix might open a security vulnerability. Checking the history of the file org.debian.apt.conf, we see that there was no change in that file since last install, and so the fix above is most probably not the correct one.

Desktop showing contents of Home Folder

Solution is to replace / create the file ~/.config/user-dirs.dirs with as content [13]:

# This file is written by xdg-user-dirs-update
# If you want to change or add directories, just edit the line you're
# interested in. All local changes will be retained on the next run
# Format is XDG_xxx_DIR="$HOME/yyy", where yyy is a shell-escaped
# homedir-relative path, or XDG_xxx_DIR="/yyy", where /yyy is an
# absolute path. No other format is supported.
# 
XDG_DESKTOP_DIR="$HOME/Desktop"
XDG_DOWNLOAD_DIR="$HOME/Downloads"
XDG_TEMPLATES_DIR="$HOME/"
XDG_PUBLICSHARE_DIR="$HOME/"
XDG_DOCUMENTS_DIR="$HOME/Documents"
XDG_MUSIC_DIR="$HOME/Music"
XDG_PICTURES_DIR="$HOME/Pictures"
XDG_VIDEOS_DIR="$HOME/Videos"

Unity

Themes

MacBuntu 16.04

Theme

Uninstall previous packages if any

sudo apt purge mac-icons-v3 mac-ithemes-v3 mbuntu-bscreen-v3 mbuntu-lightdm-v3

Download macbuntu packages from Noobslab repo [14]:

sudo add-apt-repository ppa:noobslab/macbuntu
sudo apt-get update
sudo apt-get install macbuntu-os-icons-lts-v7
sudo apt-get install macbuntu-os-ithemes-lts-v7
sudo apt-get install macbuntu-os-bscreen-lts-v7

Use unity-tweak to select macbuntu theme and icons

Unity Tweak

Via Unity Tweak Tool

Hotcorners: Spread all Windows in upper right corner, Show Workspaces in lower right corner.
Workspace Settings: 4 horizontal workspaces on 1 vertical workspace.
Window Spread: Keep default shortcuts, i.e. Super-W for Start windows spread, and Super-Shift-W for Start windows spread for all windows

Compiz

Via CompizConfig Settings Manager.

Ubuntu Unity Plugin → Switcher: remove all shortcuts.
Static Application Switcher: Enable it. Use Alt-Tab and Shift-Alt-Tab for Next Window and Prev Window.

MacBuntu 14.04

My configuration:

The mighty MacBuntu 14.04 theme from NoobSlab! Installation log:

Wallpaper: edit as necessary.
Docky: not installed
Theme, icon, cursors: Mbuntu-x, Mbuntu-xl, Mac-cursors (via unity tweak tool, see below)

sudo add-apt-repository ppa:noobslab/themes
sudo apt-get update
sudo apt-get install mac-ithemes-v3
sudo apt-get install mac-icons-v3
# To uninstall:
# cd /usr/share/icons/mac-cursors && sudo ./uninstall-mac-cursors.sh
# sudo apt-get remove mac-ithemes-v3 mac-icons-v3

Mbuntu splash:

sudo add-apt-repository ppa:noobslab/themes
sudo apt-get update
sudo apt-get install mbuntu-bscreen-v3
# To uninstall:
# sudo apt-get autoremove mbuntu-bscreen-v3

Mbuntu theme for LightDM — not done anymore

sudo add-apt-repository ppa:noobslab/themes
sudo apt-get update
sudo apt-get install mbuntu-lightdm-v3
# To uninstall:
# sudo apt-get remove mbuntu-lightdm-v3

Edit /etc/lightdm/lightdm.conf to enable this webkit theme:

diff --git a/lightdm/lightdm.conf b/lightdm/lightdm.conf
-greeter-session=unity-greeter
+greeter-session=lightdm-webkit-greeter

Indicator synapse:

sudo add-apt-repository ppa:noobslab/apps
sudo apt-get update
sudo apt-get install indicator-synapse

Replace Ubuntu Desktop: Not done
Replace Overlay Scroll-bars with Normal: Not done
Remove White Dots and Ubuntu Logo from Lock Screen:

sudo xhost +SI:localuser:lightdm
sudo su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-grid false;exit
sudo mv /usr/share/unity-greeter/logo.png /usr/share/unity-greeter/logo.png.backup
# To uninstall:
# sudo xhost +SI:localuser:lightdm
# sudo su lightdm -s /bin/bash
# gsettings set com.canonical.unity-greeter draw-grid true;exit
# sudo mv /usr/share/unity-greeter/logo.png.backup /usr/share/unity-greeter/logo.png

Apple Logo in Launcher:

wget -O launcher_bfb.png http://drive.noobslab.com/data/Mac-14.04/launcher-logo/apple/launcher_bfb.png
sudo mv launcher_bfb.png /usr/share/unity/icons/
# To uninstall:
# wget -O launcher_bfb.png http://drive.noobslab.com/data/Mac-14.04/launcher-logo/ubuntu/launcher_bfb.png
# sudo mv launcher_bfb.png /usr/share/unity/icons/

Auto-hide Unity Launcher: done
Install Unity Tweak Tool to change Themes & Icons

sudo apt-get install unity-tweak-tool

Install Monochrome icons for Libreoffice:

sudo apt-get install libreoffice-style-sifr

After installation go to LibreOffice menu select "Tools" > "Options" > "LibreOffice" > "View" and select "Sifr" under "Icon size and style"

(Optional) Mac fonts:

wget -O mac-fonts.zip http://drive.noobslab.com/data/Mac-14.04/macfonts.zip
sudo unzip mac-fonts.zip -d /usr/share/fonts; rm mac-fonts.zip
sudo fc-cache -f -v

Default font: Lucida Sans 9

Document font: Lucida Sans 10

Monospace font: Lucida Console Semi-Condensed 10

Window title font: Luncida Sans Unicode Bold 10

Fixes

Ubuntu Tweak → Tweaks → Unity → Restore launcher opacity to defaults (0.67).

MacBuntu 10.04

The mighty Macbuntu 10.04 theme! Reverted changes:

Fonts — see below.
Terminal — Colors select Use colors from system theme (was set to Gray on black built-in schemes). Keep transparent background 95%.
Panel — add back System Monitor. We don't add back the bottom task panel.
In Configuration Editor, /apps/metacity/general/button_layout: menu:minimize,maximize,close

Appearance

(before Macbuntu) Fonts — Application → Tahoma 9; Document→ Sans 8; Desktop → Sans 8; Title → Sans Bold 9; Fixed width → Monospace 8
(after Macbuntu) Fonts — Application → Lucida Grande 9; Document→ Lucida Grande 9; Desktop → Lucida Grande 9; Title → Lucida Grande 10; Fixed width → Lucida Console 9 (originally Lucida Console 10)
Fonts — rename ~/.fonts.conf to ~/.fonts.conf.macbuntu to disable macbuntu hinting settings override.

Appearance

Wallpaper, edit as necessary.

Keyboard Layout (System-Wide)

Layout: Belgium (default) + USA, no separate layout
Custlayout Belgium (file /usr/share/X11/xkb/symbols/be) to allow AltGr-; → '<' and AltGr-: → '>', and support Greek letters with AltGr-Shift.
Options: Capslock as an additional ESC key,

Alt+CapsLock or Right Ctrl+Right Shift switch layout ((because Alt+Shift,Left Ctrl+Left Shift prevents ctrl-alt-shift shortcuts to work, Right Ctrl conflicts with VirtualBox))

right alt

Keyboard Shortcuts

Shortcut	Action	Remark
Super-E	Home Folder	Hack Super is mapped to Win keys not needed anymore it seems

Window List Panel (see here)

Window List Content → Show windows from all workspaces
Restoring Minimized Windows → Restore to native workspace

Fonts

System fonts (/usr/local/share/fonts):

Added BitStream Vera 1.10

Added jsMath fonts (Linux variant, darkness 20 file, see here)

Added all jsMath extra fonts (dark version from this page)

User fonts (~/.fonts):

Added Tahoma

Compiz

My configuration:

Compiz

General Option - Move Window: SuButton2
because AButton3 is used in OpenOffice to move columns / rows
Static Application Switcher: Use AAlt for Next Window (current workspace)
Scale: Multi-Output Mode → On all output devices, darken background, Emblem for overlay icon
Ring Switcher: Enabled + Use SuTab for Next Windows (All Workspaces) + Allow Mouse Selection
Enhanced Zoom Desktop: Disabled
Negative: Disabled
Desktop Wall: enabled Edge Flip Move.
Put : disabled Put Pointer, enabled Put To Next Output (Superz) selected Avoid Offscreen.

Frequently used Compiz shortcuts (bold are custom ones)
Shortcut	Action	Remark
`SASpace` `SuButton3`	General Options - Window Menu
`CALeft` `CARight`	Desktop Wall - Move
`SCALeft` `SCARight`	Desktop Wall - Move with window
`Sus`	Expo Key	Also known as Start workspace switcher. Was `SSus`
`AF7`	Move Window
`Suz`	Windows Put To Next Output
`AF8` `SuButton2`	Resize Window
`SuTab` `SSuTab`	Ring Switcher	(All Workspaces)
`Suw` `Sua` / `TopLeft` / `TopRight`	Scale windows	Current viewport All windows
`ATab` `SATab`	Static application switcher	Current viewport
`SuAlt`	Ubuntu Unity Plugin Key to show the HUD when tapped

@@ Line 535: / Line 535: @@
 === Themes ===
 ==== MacBuntu 16.04 ====
+;Theme
 * Uninstall previous packages if any
 <source lang=bash>
@@ Line 550: / Line 551: @@
 * Use <code>unity-tweak</code> to select macbuntu theme and icons
+;Unity Tweak
+Via '''Unity Tweak Tool'''
+* ''Hotcorners'': <code>Spread all Windows</code> in upper right corner, <code>Show Workspaces</code> in lower right corner.
+* ''Workspace Settings'': <code>4</code> horizontal workspaces on <code>1</code> vertical workspace.
+* ''Window Spread'': Keep default shortcuts, i.e. {{kb|Super-W}} for ''Start windows spread'', and {{kb|Super-Shift-W}} for ''Start windows spread for all windows''
+;Compiz
+Via '''CompizConfig Settings Manager'''.
+* ''Ubuntu Unity Plugin &rarr; Switcher'': remove all shortcuts.
+* ''Static Application Switcher'': Enable it. Use {{kb|Alt-Tab}} and {{kb|Shift-Alt-Tab}} for ''Next Window'' and ''Prev Window''.
 ==== MacBuntu 14.04 ====

Ubuntu: Difference between revisions

Revision as of 08:53, 27 October 2016

References

Repositories

Install

Create an USB Startup disk

Net boot install from Internet using GRUB

Net boot install from USB drive

Net boot from within Windows

Troubleshoot

Reiserfs support

Grub

Upgrade

Guides

Ubuntu 14.04 Trusty Tahr

Tips

Multi-task filtering by text input

Ubuntu on Laptops

Dell Inspiron 2650 - Lucid 10.04.3

HP Pavilion g6 (Marine's laptop)

Administration

Add a new Launchpad PPA repository

Ubuntu Tweak

Network

Disable lightdm guest account

Display Hidden Startup Applications in ubuntu 12.04 and Above

Assign Ctrl-Alt-Del to Shutdown dialog

Kernel

Install new kernels

Remove old kernels

Devices

Medibuntu

Troubleshoot

CIFS shares not properly unmounted during shutdown

Troubleshooting 'System program problem detected'

Desktop showing contents of Home Folder

Unity

Themes

MacBuntu 16.04

MacBuntu 14.04

MacBuntu 10.04

Compiz

Navigation menu

Search