Ceci est une ancienne révision du document !
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 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 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!