I am on Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-62-generic i686) and when I do:  aptitude update aptitude safe-upgrade   no upgrades are offered. aptitude search linux-headers-4.8 offers several 4.8 kernels:  p   linux-headers-4.8.0-28                                                        - Header files related to Linux kernel version 4.8.0 p   linux-headers-4.8.0-28-generic                                                - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-28-lowlatency                                             - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-30                                                        - Header files related to Linux kernel version 4.8.0 p   linux-headers-4.8.0-30-generic                                                - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-30-lowlatency                                             - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-32                                                        - Header files related to Linux kernel version 4.8.0 p   linux-headers-4.8.0-32-generic                                                - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-32-lowlatency                                             - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-34                                                        - Header files related to Linux kernel version 4.8.0 p   linux-headers-4.8.0-34-generic                                                - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-34-lowlatency                                             - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-36                                                        - Header files related to Linux kernel version 4.8.0 p   linux-headers-4.8.0-36-generic                                                - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP p   linux-headers-4.8.0-36-lowlatency                                             - Linux kernel headers for version 4.8.0 on 32 bit x86 SMP   In the German Wikipedia under ubuntu is written that the kernel 4.8 is available for 16.04.2 LTS since 17 February 2017:    The English Wikipedia and  is still on kernel version 4.4 for 16.04.2 LTS. The later one (Ubuntu release page) omits 16.04.2 LTS also and seems to be not up-to-date.  Is it a little bit too early or should I update the kernel by hand?
My machine was updated today to Ubuntu 16.04.2. However, the kernel is still "4.4.0-62-generic". What happened (it seemed that the principal advantage of the 16.04.2 version was the update of the kernel to 4.8) ? Do I have to make a fresh install ?
I'm trying to install wifi drivers for a particular mini wifi card i bought. The output of lsusb is:  0bda:f179 Realtek Semiconductor Corp   I've searched everywhere for drivers, but could not find anything. Any help?  Thanks Why can't I log into minecraft with a mojang account? Finding all solutions for a system of equations with constraint on the sum of absolute values I am looking for a fast algorithm to find all integer solutions for the following system of linear equations ($c_1,\ldots,c_n \in \mathbb{Z}$ and $r\in \mathbb{N}$ ):  $x_1+x_2=c_1$  $x_3+x_4=c_2$  ...  $x_{2n-1}+x_{2n}=c_n$  $|x_1|+|x_2|+\ldots+|x_{2n}|=r$  $x_1,\ldots,x_{2n} \in \mathbb{Z}$   Also can we find the number of solutions before solving the system? escaping double quotes and percent signs (%) in cron The following command works from prompt but not from crontab.   grep abc  /var/log/messages | grep "`date '+%B %d'`" | mail -s"abc log of `hostname`" shantanu.oak+`hostname`@gmail.com   I need to add it to daily cron. How to hide a folder in sdcard in android Given a Java InputStream, how can I determine the current offset in the stream? I'd like something like a generic, re-usable getPosition() method that will tell me the number of bytes read from the starting point of the stream.  Ideally, I would prefer this to work with all InputStreams, so that I don't have to wrap each and every one of them as I get them from disparate sources.  Does such a beast exist?  If not, can anyone recommend an existing implementation of a counting InputStream? How to properly scale image in uv editor Hello to anyone who come here and help out or read. I have an issue with the uv editor, I have been trying to make an proper eye. The issue is that I can't figure out how to scale this correctly.    Is there anything I can do to make the eye colors or texture? How to smooth shade an object while retaining hard edges? SELECT permission on view querying table from another database Xorg 100% cpu with pulseaudio On Ubuntu 16.04.3 LTS  Pulseaudio causes Xorg to use 100% CPU.  After disabling autospawn in /etc/pulse/client.conf and killing pulseaudio CPU immediately drops to acceptable level. After restarting pulseaudio Xorg returns to 100% CPU.  pulseaudio --kill pulseaudio --start   Installed versions:  pulseaudio 1:8.0-0ubuntu3.7 xorg       1:7.7+13ubuntu3 nvidia-390 390.30-0ubuntu1    How to fix this? Paradox of General Comprehension in Set Theory, other than Russell's Paradox As is well known, the General Set Comprehension Principle (any class is a set) leads to the Russell Paradox (the class $x \notin x$ cannot be a set). As a result, set theories must restrict the Comprehension Principle to avoid self-reference. For example, in the case of ZFC, this is done by enumerating a small list of "safe" comprehension schema such as Separation.  Does General Comprehension lead to other types of paradox than Russell's? Or is this basically the only thing that can go wrong? Subgroups of $U(n)$ isomorphic to a direct sum of cyclic groups Centering with \includegraphics not with \begin{figure}? I mess up with things when I try to use the figure-thing: the picture is not appearing with the correct alignment (apparently because I forget the float package). Now I want to use only the graphicx package with \includegraphics. How can I center the \includegraphics without figure?  Not working or doing centering to the document afterwards.  \includegraphics[width=0.5 \textwidth]{./Pictures/r.png}{\centering} \includegraphics[width=0.5 \textwidth]{./Pictures/r.png}\centering I'm working on the following problem set.  Let $\mathcal{H}$ be a Hilbert space and $A$ and $B$ orthogonal subspaces of $\mathcal{H}$.  Prove or disprove:  1) $A \oplus B$ is closed, then $A$ and $B$ are closed.  2) $A$ and $B$ are closed, then $A \oplus B$ is closed.  I could prove 1) and if my proof is correct, it even holds if $\mathcal{H}$ is just an inner product space.  Unfortunately, I can't manage to prove 2). Since $\mathcal{H}$ is by assumption a Hilbert space and I didn't use that fact to prove 1), I should probably use it here.  It means that $A$ and $B$ are also complete. Given some convergent sequence in $A \oplus B$, I want to show that the limit is also in  $A \oplus B$. Here I'm stuck. I want to use the completeness of $A$ and $B$, but I don't see how to obtain suitable Cauchy sequences.  Can anyone drop me a hint? Or is my approach all wrong? BufferedWriter not writing everything to its output file In the last 30 years, human technology has developed massively.  Every year a new smartphone is released with a faster processor, more memory, better features.  Why hasn't the same level of progress happened in the Star Wars universe?  In The Phantom Menace, we see a number of droids - R2 units, C-3PO, Pit Droids, etc.  In Return of the Jedi - the droids we see pretty much have the same capabilities.  I would have thought that technology would still be progressing in the Star Wars universe - but it appears to have stopped.  During wars on Earth, our technology capabilities grow - so it can't just be the effect of a massive war which is causing the stagnation of development.  So, what gives? $a _{1} = \frac{1}{2}, a _{2} = 1, a _{n}= \frac{1}{2} a_{n-1} + \sqrt{a _{n-2} }$  Show by the induction that it's $\le 4$ and also by the induction that $a_{n+1}-a_n \ge 0$  If it comes to first I don't know what to do and if it comes to second I tried many different ways but I couldn't prove it. What are the advantages of using the optical viewfinder over live preview to take photos on a DSLR? Forgive this novice question, I am basically a complete newbie to photography.  Really, all I've ever used for most my of short life have been point-and-shoots; I've only recently started to pick up some curiosity.  Anyway, from what I've gathered, reading through many of the  questions, most serious photographers use the optical viewfinder as their primary tool to determine what makes a good shot.  Live-preview isn't used much at all; it seems its help is to primarily set up the shot.  Reading a Wikipedia article seems to confirm this view, adding that      [l]ive preview in DSLRs does not typically serve as their principal means of framing and previewing before taking a photograph, with this function still being mainly performed with optical viewfinder. While initially largely a novelty feature, live-preview functionality has become more common on DSLR cameras...    My questions are:   What are the myriad advantages of using the viewfinder over live preview, what does it help one accomplish in achieving the goals of photography? What are some interesting ways serious photographers use live preview to take better shots they might have otherwise missed? Identifying Coordinate System of Shapefile when Unknown? Your UK visa application has been issued.      PLEASE DO NOT GO TO THE VISA APPLICATION CENTRE BEFORE THEY CONTACT YOU.      You will be contacted by the Visa Application Centre when your documents are ready for collection, or have been dispatched via courier where this is relevant.       You are reminded that you should avoid making travel plans until you have collected your passport, as the outcome of your visa application is not final until you receive your passport.      Please ensure you check the details on your visa when collecting your passport. If you need to contact us you can do so via our International Enquiry Service at www.gov.uk/contact-ukvi-outside-uk      Kind regards,      UK Visas and Immigration   British Embassy Abu Dhabi     Your UK visa application has been issued.   I know words like processed, forwarded, received, refused but never heard anything like that, so I am confused.