I'm trying to install Ubuntu Studio version 14.04.2 (alongside my Windows 8). Everything seems to go fine during the installation until at some point this message pops up:  GRUB installation failed  The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader the installed system will not boot.   Then it says the installation crashed, and I'm taken to the Ubuntu desktop (which I imagine is the "try ubuntu" thing on the disc).  More info: I'm using a Lenovo laptop B5400 64-bit with Windows 8, and have just recently been figuring out all this business with partitions, dual OS systems and whatnot. I've disabled safe booting. I've connected to internet each time I attempted installation. I've tried the "check for corruption" option on the disk, nothing comes up so it's not that. Hitting F12 at startup and choosing to run the disc first is the right way to do this, yes? I've gone through a few answered questions but most of them don't apply to my situation, are outdated, or I don't understand the answer (many people talk about entering commands into things and I don't know when/how to do this).  Please help a confused noob out!  Edit: Thank you all for trying to help (and pointing me to that other topic), but the solutions there have not worked! The other asker is using a different version of Ubuntu, 12.04.3. (And it's not Ubuntu Studios, which, while it does have the /grub2 folder, it does not have /grub2-signed. And all the files do end in 64, though they have different names.) Plus, the second answer doesn't work since I'm trying to get a dual system, not wipe and repartition everything. So, that topic is of no use to me.  @shredalert: Thanks, and I hope you enjoyed your rum, but this has not worked either. I entered the commands just as you said but it comes up with something along the lines of "Errors encountered while processing yada yada yada" and it lists a bunch of things of which duplicates were found. I'm guessing since I have the latest version, there is no point in updating it and all the current files are the same as the update files. Exact same thing happens with "sudo apt-get install grub". So, the problem isn't there.  I will see if installing a normal version of Ubuntu works (rather than Ubuntu Studio... and then manually installing all the extra software. sigh). If that fails, I will try an older version. If THAT fails, I'll flip a table then do the Boot-Info thing.  ...How do I remove the [duplicate]? That won't help me find answers.
The error message is :the grub-efi-amd64-signed package failed to install into /target/. Without the GRUB bootloader the system will not boot  I'm trying to install on HP pavilion g6-2303 TX using USB.  How do I fix this problem?
I am having trouble finding out why the white space between my paragraphs is variable. Sorry, I am not allowed to post images but sometimes there is no white space (like it should be), just an indent to denote that a new paragraph has started. While sometimes the paragraphs start with an indent AND there is (sometimes substantial and thus variable) white space between the last sentence of the previous paragraph and the first sentence of the new paragraph.  In my tex file, there is no difference between what I do in the first and second examples of my text: just two hard returns to denote the start of a new paragraph. I was wondering whether it could be due to placement of figures and footnotes but I have no idea how to change it. I don't mind a little variable white space between paragraphs but the above example is too extreme for my taste. Thanks for your advice! Excuse my lack of knowledge and expertise in math,but to me it would came naturally that the cubic root of $-8$ would be $-2$ since $(-2)^3 = -8$.  But when I checked Wolfram Alpha for , real it tells me it doesn't exist.  I came to trust Wolfram Alpha so I thought I'd ask you guys, to explain the sense of that to me. 401k withdrawal abroad and state taxation? From what I know about 401k's, when it's time to retire, we take our 401k money and pay federal and state tax. Some states don't have taxes on 401k's — Florida is a good example. So many people move to Florida for a retirement, not to pay taxes (that's why people call it heaven's waiting room). The question is - how does it work if a US citizen permanently moves to another country for a retirement (retaining citizenship, but not living in any of the US states)? Are there any state taxes? If yes, then why? Can a package overwrite the original commands in Latex? An example:  Without the amsmath package:   The equation environment numbers the equation automatically. The align environment cannot be executed.   With the amsmath package:   align and equation work seamlessly in numbering equations: I can use equation to write my first two equations, and align to write my third equation, and Latex will still number them correctly.   My questions are:   Is the code for the command equation after loading the amsmath package still the same as it was before loading the package? Moreover, if this is the case, then, in general, can loading different packages cause conflicts? And how do we avoid it? Not that it's a very good idea to change it, but for fun. According to  post, there are still some problems even after changing entries in /etc/passwd, /etc/shadow, and /etc/sudoers. Any suggestions? Validate decimal numbers in JavaScript - IsNumeric() Can you deliver it [when,after] it [is | will be] assembled? Why is the word 'number' abbreviated to 'No.' in UK English and '#' in American English? Why the disparity? And why use 'No.'? Is it from the French?  And the hash or pound sign seems a weird choice too, is there a history or any reason involved? In terms of UX what do you guys think is the best approach when integrating a trial period for subscriptions?  My application offers a 15 day trial, at the minute the user can sign up without providing any payment information (Paypal Subscription). The account is then set to trial status and after 15 days the user will be redirected to an upgrade page.  Do you think this is the best approach? I am unsure whether or not to let Paypal manage the trial, this however means that the user will need to go through the Paypal payment system during signup. I think this may put some people off signing up.  On the other hand this approach may increase the number of conversions to a full account. How to float until on left (or right) page? I have two sideways tables that I want on two facing pages so the reader can turn the entire book and read them both in one turn. For the moment I keep moving them around to keep them on facing pages. Is there a way I can make the first one float until it's on a left page and then place the other one right after? Or perhaps some similar way to automatically get them on the same spread? Is it common for native speakers to put a question mark at the end of declarative sentence? During the end credit scene of Spider-Man: Far from Home, we see that,      Nick Fury and Maria Hill are two Skrulls, Talos and (presumably) his wife.   And we also see that,      Nick Fury is in a spaceship like structure, presumably away from Earth.   So that begs the question,      How long has Talos been impersonating Nick Fury? Is it since the events of Captain Marvel or since Avengers: Endgame or sometime in between? Accessing variables from other functions without using global variables I've heard from a variety of places that global variables are inherently nasty and evil, but when doing some non-object oriented Javascript, I can't see how to avoid them. Say I have a function which generates a number using a complex algorithm using random numbers and stuff, but I need to keep using that particular number in some other function which is a callback or something and so can't be part of the same function.   If the originally generated number is a local variable, it won't be accessible from, there. If the functions were object methods, I could make the number a property but they're not and it seems somewhat overcomplicated to change the whole program structure to do this. Is a global variable really so bad? Why is notepad++ writing to my new document? I updated notepad++ and it started writing to the screen.  I quickly closed it not knowing what it was, but now I'm curious do I have a 'hacked' copy of notepad++? Show that if $ab$ has finite order $n$, then $ba$ also has order $n$. - Fraleigh p. 47 6.46. Is division of matrices possible? Is it possible to divide a matrix by another? If yes, What will be the result of $\dfrac AB$ if $$         A = \begin{pmatrix}         a &amp; b \\         c &amp; d \\         \end{pmatrix},         B = \begin{pmatrix}         w &amp; x \\         y &amp; z \\         \end{pmatrix}? $$ Can sum of a rational number and its reciprocal be an integer? Can sum of a rational number and its reciprocal be an integer?   My brother asked me this question and I was unable to answer it.   The only trivial solutions which I could think of are $1$ and $-1$.  As to what I tried, I am afraid not much. I have never tried to solve such a question, and if someone could point me in the right direction, maybe I could complete it on my own.  Please don't misunderstand my question.   I am looking for a rational number $r$ where $r + \frac{1}{r}$ is an integer. This is the error I get when I open the software center. I've tried rebooting and running sudo apt-get update but I see no improvement. It worked earlier but I don't know what went wrong since then. I'm using Ubuntu 16.04 final release on a Dell Inspiron 15R. Any advice will be appreciated. Thanks in advance.  EDIT: The problem magically solved itself without me doing anything special (or maybe inadvertently doing something, I don't know). So I'd still like to get to the root of this. How does one create a custom application launcher for Wine installed apps? Trying to identify pre-1970s short story involving multiple humans absorbed into an alien blob I think this story dates from the 1950s, plus or minus a decade - I read it about 30-35 years ago in a (then) fairly old story collection. It involves explorers on a planet falling into a gelatinous object that dissolves most of their bodies except for their brains and nervous systems. About four of them fall in to the same creature, and they discover that by thinking about it they can grow limbs and other body parts. At first they try to fight each other, by growing arms so they can hit each other's brains - and one of them realises that growing a skull would be a good idea - but later they agree to grow legs and move the creature around co-operatively. I would love to identify this story.