Full Circle Magazine FR

Q I was finally able to get a separate (third) drive for Ubuntu. What I would like is, every time I turn on the computer, I get the option of which OS I boot into. I think the solution is to use a bootloader, but I have no idea how to pick one or even know if this is right. I have Windows 10 and Ubuntu 15.10. A When you install Ubuntu, it will install the GRUB bootloader. If you choose “something else” during installation, you can specify where it should go. Select the first drive in your BIOS/UEFI boot order. You will need to use the drive sizes to figure out which drive is which. Probably the one with Windows will be first, identified as SDA. Probably Ubuntu will go on the third drive, SDC. Since it is very easy to get this wrong, make sure you have an image backup of your system, and a way to restore the image, before you do anything! Macrium Reflect Free is a good program for doing this. Q I've just upgraded one of my machines to 16.04, and now, on installing Folding@Home, I get a Python error. A (Thanks to khowe in the Ubuntu Forums) wget http://launchpadlibrarian.net/109052/python-support_1.0.15_all.deb sudo dpkg -i python-support_1.0.15_all.deb Not sure why it doesn't install automatically, maybe a bug report is in order.

Q J'ai enfin réussi à avoir un (troisième) disque séparé pour Ubuntu. Ce que j'aimerais c'est à chaque fois que j'allume mon ordinateur, avoir un menu permettant de choisir l'OS sur lequel démarrer. Je pense que la solution est d'utiliser un lanceur de démarrage, mais je ne sais pas où en trouver un et même si c'est une bonne idée. J'ai Windows 10 et Ubuntu 15.10.

R Quand tu installes Ubuntu, il va installer le lanceur GRUB. Si tu choisis «autre» pendant l'installation, tu peux dire où elle devra aller. Choisis le premier disque dans l'ordre de boot BIOS/UEFI. Tu auras besoin de connaitre les tailles des disques pour savoir lequel est le bon. Probablement, celui avec Windows sera le premier, nommé SDA. Probablement Ubuntu ira sur le troisième disque, SDC.

Comme c'est vraiment facile de se tromper, assure toi d'avoir une sauvegarde de ton système, et un moyen de la restaurer, avant de faire quoi que ce soit! Macrium Reflect Free est un programme que le fait.

Q Je viens juste de mettre à niveau une de mes machines vers la 16.04, et maintenant, en installant Folding@Home, j'ai une erreur Python.

A (Merci à khowe dans les forums Ubuntu) wget http://launchpadlibrarian.net/109052/python-support_1.0.15_all.deb

sudo dpkg -i python-support_1.0.15_all.deb

Je ne sais pas il ne s'installe pas automatiquement, peut-être qu'un rapport de bug est fait.

Q I have a dual boot system, Windows 7 and LXLE. Can I toss out LXLE and put Ubuntu Mate on my machine? A During installation of any member of the Ubuntu family, you will reach a point where it asks where you want to place the installation: erase disk, alongside the existing system, or something else. Select something else. You will see a list of the partitions on your hard drive. Select the one where LXLE resides and click on “change.” Specify “use as” EXT4. Select the mount point “/” (root) and click on the box to format the partition, and OK. Q I have been trying to run Picoscope under Wine, unsuccessfully. A See this page: https://www.picotech.com/downloads It says there is a picoscope for Linux. Since you need drivers for the computer to get data from the 'scope, there is almost zero chance you would get it running in Wine.

Q J'ai un système en double amorçage, Windows 7 et LXLE. Est-ce que je peux jeter LXLE et mettre Ubuntu Mate sur ma machine?

A Pendant l'installation de n'importe quel membre de la famille Ubuntu, vous atteindrez un point où elle demande où vous voulez placer l'installation : effacer le disque, à côté du système existant, ou autre. Choisissez autre.

Vous verrez une liste de partitions sur votre disque dur. Cliquez sur celle où est LXLE puis sur «changer» Spécifiez «utiliser comme» EXT4. Cliquez sur le point de montage «/» (root) et cliquez sur le carré pour formater la partition, et c'est bon.

Q J'essaie de lancer Picoscope sous Wine, sans succès.

A Regardez cette page: https://www.picotech.com/downloads

Elle dit qu'il y a un picoscope pour Linux. Puisque vous avez besoin de pilotes pour que l'ordinateur retrouve des données du 'scope, il y a pratiquement aucune chance pour que vous arriviez à le lancer sous Wine.

Q Whilst upgrading to 16.04, I was informed that removing old packages may take several hours. I didn't take the removal option at the time as I didn't have the time to wait. Is it advisable to remove them and if so how do I do it? A (Thanks to deadflowr in the Ubuntu Forums) sudo apt-get autoremove will show all packages no longer needed. I think apt's man page makes a nice point about whether to remove or not to remove. Q I have two security cameras and would like to know if I can attach them to my network and use some kind of software on my server machine to record the video. Also a way to remotely view it on an iPhone. A (Thanks to volkswagner in the Ubuntu Forums) Zoneminder works with most IP cameras (need to send mpeg stream). There is a paid app (zmNija) in Android and Apple app stores, that integrates well with ZM. You'll want to use the Ubuntu PPA for use of zmNija.

Q Is Synaptic package manager installed by default on Ubuntu Mate version 16.04? A No, but it's easy to install post-installation of Mate. Q I clearly remember downloading different debs and just click installing. This is not working for me anymore. A Install Gdebi and use it to install .deb files.

Q I have a pack of fonts which I would like to add to Ubuntu 14.04. How can I do this? A (Thanks to CantankRus in the Ubuntu Forums) If you have only one user, you can place them in ~/.fonts That folder probably does not exist, so you have to create it. Then run this command: sudo fc-cache -fv If you want to make the fonts available to multiple users, you need to put them in /usr/share/fonts which requires using sudo. Then run the same command.

Top questions at Askubuntu * Is there any program for fuzzy string matching, which provides a match score? http://goo.gl/xnLFAf * What is the 'Badlock Bug'? http://goo.gl/9wcaL1 * What is the name of the security concept that explains why Linux asks for root password? http://goo.gl/Fi0ehH * How do I install and manage GNOME Shell extensions? http://goo.gl/sx3ES3

* Why doesn't the latest Ubuntu edition come with the latest stable Linux kernel version? http://goo.gl/N8748p * How to run a Python program directly? http://goo.gl/vjHloF * Ubuntu Server 16.04 installs on /sdc but fails to boot http://goo.gl/zdG27C * No more boot logging since 16.04? http://goo.gl/r4RuvP * Personal computer hacked: How do I block this user from logging in again? How do I find out how they are logging in? http://goo.gl/A39P3E

Tips and Techniques Really? As my bio says, I work part time in a mostly Windows environment. It's an accounting firm, and the typical desktop system has nearly 200 “applications” installed; all of them are Windows only. A new client walks in and says, “I haven't filed a tax return for a dozen years, and I have income in both Canada and the U.S.” That's 24 “applications” right there. The company has aligned itself with two primary software suppliers. This makes tremendous sense, and simplifies the IT workload. One of the software suppliers has a no-charge add-on to its mainline product, which is very attractive. It's a “portal” for transferring files between clients and the firm, and it ties in nicely to the main product. When a new client asks, “how can I send you files,” having a standard answer is very powerful. The software is free. However, the suggested configuration is to have a separate server in its own “DMZ”, which means a new router, a new computer, a new Windows Server license, a new domain name and a new SSL Certificate. The most expensive part of this? The Windows Server license! Argh!