Ceci est une ancienne révision du document !
Q How can I remove the guest logon in Ubuntu?
A Run this command:
gksudo gedit /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
Add this line at the end of the file:
allow-guest=false
Save it and exit.
Q I have heard that Skype is available for Ubuntu. How should I install it?
A (Thanks to craig10x in the Ubuntu Forums) You have to go to software and updates (find that using the dash search) and under the “other software” tab, check the 2 boxes that say Canonical Partners… then close it (as you do that it will tell you to hit the refresh button)… Then, when you open the Ubuntu Software Centre, you can search for skype… that will bring it in…
Q During system startup, I get this message: “ACPI PCC probe failed starting version 219”
A It's a warning, ignore it.
Q I want to set up a server-based project management system so clients can assign tasks to me, and we can both see the status.
A (Thanks to tgalati4 in the Ubuntu Forums) I have used Tracks for this: getontracks.org
Q How can I see my current network settings?
A Enter this command:
ifconfig -a
Q I dual-boot Windows 7 and Ubuntu 14.04. I plan to upgrade the Windows 7 to Windows 10 when it becomes available. Is there any danger that I will lose anything?
A Any upgrade has the possibility of causing problems. I suggest a full backup to an external drive. On the Windows side, install Macrium Reflect Free and make an image of your Windows partition(s) onto the external drive. Make a Macrium restore DVD. Mount the image and make sure your latest files are present.
For the Ubuntu side, use Clonezilla to make an ISO on the external drive. Make sure you have an Ubuntu live CD or USB.
Read about Boot Repair in the community docs, and have it at the ready, since there is a good chance the Windows upgrade will wipe out the GRUB boot manager.
Top questions at Askubuntu
* command to find files by searching only part of their names? http://goo.gl/EsV41n
* Problem with spaces in file names http://goo.gl/zzVscc
* How to delete all files except one named file from a specific folder http://goo.gl/lXj7y7
* Terminal 'incognito mode'? http://goo.gl/tppzZe
* How do I permanently change window titles? http://goo.gl/HstaCR
* How to execute C++ program whenever a USB flash drive is inserted http://goo.gl/RygG6z
* Output only MAC address on Ubuntu http://goo.gl/JOdPwM
* Why does Ubuntu provide the Multiverse repository? http://goo.gl/q6nGam
* How to leave a USB port powered during shutdown for charging mobile? http://goo.gl/dvCKXG
Tips and Techniques
Uninstall?
It's surprising how often the question comes up, “how can I uninstall Ubuntu?” The glib answer is that you don't need to uninstall it, just run gparted from the install media and wipe the partition.
Sadly, in many cases where you are dual-booting, that is not a good solution. If grub has become the boot manager, you probably need to Google “change grub defaults” and follow the instructions you find on Askubuntu to make something other than Ubuntu the default. Then you can run gparted, or the Windows partitioner.
The other approach is to redo the installation, or some other installation, correcting whatever caused you to want to uninstall. KDE was too heavy for your old computer? Try Xubuntu.