Ask Ubuntu General Room

12:17 AM

lol, someone gave me a macbook air, in exchange to setup a lenovo thinkpad with ubuntu for a 7 year old - not a bad exchange

except the wifi is broken on the mac

so... uh, apple really has something against standard ports, I think the only way I can connect to the internet is with Bluetooth tethering at this point...

Chan-Ho Suh

you have to admit "standard port" isn't very sexy

Mateo

yeah, neither is a bunch of adapters hanging off, but oh well

I think something in the software went wierd, it won't connect with a thunderbolt to ethernet either, but the factory reset requires internet

Nathan Osman

@Mateo Do you have an Android phone? I've successfully tethered an Android phone to my Mac Mini and used its WiFi connection.

Mateo

so now i'm splitting a upgrade package into pieces so it can go on a FAT drive..

Chan-Ho Suh

yeah that seems very painful, didn't notice factory reset required wifi

Mateo

12:26 AM

@NathanOsman yeah, can you do that with a cord, I was able to to bluetooth

but that is slow

Nathan Osman

I was able to do it over USB.

Chan-Ho Suh

I seem to recall I did it once without wifi, but maybe I'm mistaken

Mateo

hm, might have to try that

Chan-Ho Suh

man, I haven't used a mac for a long time, since my air was stolen

Mateo

maybe with a disk, but doing that looks like this:

Chan-Ho Suh

12:28 AM

then I tried helping someone with their Mac and was like, wtf ... it's become complicated now :-(

Mateo

note the usb extender to use both usb ports for the drive

Chan-Ho Suh

crazy... looks pretty messy there too :-p

Ubuntu Questions on U&L

0

Q: Is it possible to have linux AND the preinstalled version of windows?

I'd like to install linux (debian or ubuntu), but keep the preinstalled Windows that came with the computer, apparently the installation files are in a hidden partition (obviously I don't have any installation DVD or CD). Is it possible to install both OS in these conditions?

Mateo

so, hopefully upgrading will fix some things

@Chan-HoSuh oh yeah, I couldn't even find onyx for the new versions

well if not I'll try wiping it out with ubuntu

yay, installing mountain lion

feels like the time i was installing 95 or 98 on a 486 laptop with only floppies

A.B.

4:52 AM

Morning guys

Byte Commander

5:55 AM

Morning.

Wow, this simple answer is a warm rain to my rep score:

16

A: Why isn't Oracle Java included in the standard Ubuntu repo?

Ubuntu has OpenJDK in its repository. It's the fully open-sourced version of the Oracle JDK, which contains some closed-source parts. It is a myth that OpenJDK is lower and less stable, but this was the past. Today (since version 7), they're pretty equal. OpenJDK is even the reference implement...

160 wonderful points in 20 hours :)

I hope this will continue for another while...

Byte Commander

6:20 AM

Close/delete/punish this!

Rant alert.

A.B.

@ByteCommander -4 :)

Nathan Osman

@ByteCommander VTC.

Although I must confess, that is one of the tamest rants I've ever seen.

A.B.

6:56 AM

\o/

Fabby

8:12 AM

@ByteCommander Just continued...

Byte Commander

Oh, nice. Thanks... :)

A.B.

@Fabby Hi =)

Fabby

o/

A.B.

@ByteCommander \o

@Serg DING =)

\o/

o_O

Serg

8:46 AM

@A.B. hi , i was in bathroom :D

o/

in the bathroom, damn grammar

A.B.

=)

Byte Commander

o/

Fabby

@Serg English has one of the easiest grammars I know... If you want complex grammar, try Russian! :D

Serg

@Fabby thank you very much, I've had enough russian grammar while growing up . Yuck

Fabby

>:) That's why I told you! :P

Serg

9:00 AM

@Fabby thanks bro, you really know how to cheer people up >:)

Seriously though, you're awesome

Fabby

:D

A.B.

LOL

Serg

i wish i had your sense of humor, or at least half of it

Meanwhile, i am breaking my relationships here . . .

I've this Chinese girl, whom i know like 5 years. Her ash*le fiance stole her parents money and dumped her. When we were talking in January, I said like, if by the time i come to China she is single, I'll marry her , no questions asked.

The thing is though, I'm a little bit unsure, because I used to like someone else, so I told this girl about that girl . . .

Aaaand now she's not responding me

When a woman is silent, this is the worst . . . .

A.B.

@Serg Oh boy =)

Serg

@A.B. I was surprised no one else mentioned nmcli on that question o.O

Fabby

9:07 AM

@Serg Don't talk to one woman about another woman unless she's your sister... ;-)

(so drop both and look for someone else is the only advice I can give you)

Serg

yeah, i probably shouldn't have told her >_< I'm like . . . very emotional since i came back from Ukraine. I'm ready to change my life and stuff

A.B.

9:22 AM

@Serg I have thought about it, but do not get.

Serg

Fabby keeps removing his messages lol

Byte Commander

What kind of conversation is this? Broken hearts mixed with Ubuntu questions?

A.B.

business as usual =)

Fabby

@Serg It was just to get a link for an image here

Serg

@ByteCommander lol , hey, at least it's not Jerry Springer + Ubuntu, right ?

besides we're all hooman

Byte Commander

9:26 AM

Not that I know of whom you're talking....

Serg

Jerry Springer is basically a show where people come and argue about all sorts of things. Used to be popular

OK, back to business. Any good java books to help a n00b transition to higher level ?

Byte Commander

I would know a German book, but I doubt that will help you...

Serg

If only i could read and write in German :/

Fabby

25

Q: List of free Ubuntu books

This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. What free ebooks do you recommend to learn more about Ubuntu? One book per answer, ple...

ebooks books

Byte Commander

@Serg It's not that you would have to write the book...

Fabby

9:35 AM

@Serg Hit search and find "Masochist"

>:)

Serg

Mmmm, nice list @Fabby

Bookmarked for future reference

Byte Commander

amazon.de/Head-First-Java-Kathy-Sierra/dp/0596009208

Fabby

@ByteCommander That costs $$$$! :P ;-)

Byte Commander

I did not read that, but it's Python version's German translation. It's good.

Serg

@ByteCommander well , i wouldnt write a book but making notes would be nice in the same language as the material.

Byte Commander

9:39 AM

And I borrowed it from our local library, so no $$$$ for me...

Serg

i dont mind paying for books. After all knowledge is valuable :)

Byte Commander

The German one that exists also as free Download is the "Java ist auch eine Insel" from Galileo Press (?).

But I don't think they translated that humongous book.

Serg

whats up with eeryone removing messages

even smoke detector oO

Byte Commander

10:01 AM

`\_(°.°)_/´

A.B.

hui, 14,966 =)

Oli

10:50 AM

@Serg That's me deleting them the smoke detector messages, so that people don't check a question that's already been deleted.

A.B.

Two downvotes? Whats wrong? askubuntu.com/a/645839/367165

Oli

@A.B. Can't say for sure but your first line spits out thousands of numbers

(rather than just the addition)

Ah, there's a tail on it now

And numsum (while it looks good) is super-slow.

A.B.

=\

Oli

In your awk, you're also iterating over fields in a line (of which there is only one) which slows things down too

A.B.

The first version of the question had all in one line

Oli

10:57 AM

@A.B. It was just poorly formatted. Be suspicious of "input" that runs into the main body of text.

Yeah the double-iteration takes 1m41s. Ron's simple {s+=$1} END {print s} takes 34s.

Byte Commander

@Oli Would it be possible to grant an account the permanent permission to delete chat posts older than 3 minutes?

Its own posts only, of course.

Oli

@ByteCommander "Within the realms of possibility", sure... "Can Oli grant that permission?", no.

Byte Commander

So that would mean bothering the SE dev team...

Too bad.

Otherwise Smokey could recheck and delete his posts himself...

Or maybe better just strike them or something like that. Deleting leaves so ugly holes.

Fabby

@A.B. Congratulations! 15 K!

:-)

Byte Commander

@me: Congratulations! 79 more points to 4k... :p

A.B.

11:11 AM

Thx =)

Byte Commander

Anyway, I'm off, hoping for that OpenJDK question to earn me some more points on my way up...

o/

A.B.

But a hard day. See Olis comments above

Thx @Fabby @ByteCommander

Oli

@A.B. Just giving you technical feedback, wasn't trying to get you down :(

Fabby

@ByteCommander You should answer a few more questions then...

@Oli I would have been glad for feed-back from our local god! (@A.B. and so should you!) >:)

A.B.

@Oli That's not your fault. I'm grateful to you. :)

Fabby

11:15 AM

@Oli How many more 200 rep days from legendary?

user136984

Just reached 4k! :D Although that doesn't give me anything... It still is a nice feeling... :)

A.B.

@ByteCommander =)

Fabby

@ParanoidPanda That's just because you ask too may questions and don't give enough answers!!! :P :D

Oli

@Fabby Way too many, if getting 150/day was the goal, they'd be writing songs about me. That last 50 is a killer.

A.B.

me 31 =\

sorry 31/150

Oli

11:18 AM

I'm 123/150.

A.B.

In seven days, I'am fanatic =)

Oli

Not sure I'm even the closest any more.

Fabby

@Oli @Rinzwind is going to overtake you!

(when he's back from holidays)

I'm still very proud of my sole reversal badge here!

A.B.

@Fabby =)

user136984

I hear that Firefox 39 has been released, so when are the Ubuntu repositories going to be updated with the new version?

A.B.

11:21 AM

I can protect questions? Reading …

Fabby

@A.B. You're this quarter's top performer!

A.B.

And also in the previous quarter =)

Oli

Whoa, I'm #455 in the SO all-time rankings.

A.B.

=)

Ask Ubuntu Meta

11:40 AM

0

Q: Possible wrongly closed question: Alias and executable file

I would like to point out that this question Alias and executable file should not be a duplicate of this other How can I run this sh script without typing the full path?. lmp_fedora path is resolved by mpirun as described in open mpi manual: If no relative or absolute path is specified for a...

discussion

Fabby

@Oli :-) congrats! On another note, Am I taking it one bridge too far with this user??

(please read notes, I've told him before already a few times in my edit comments end then started leaving comments below his edits)

user136984

12:27 PM

VTC this as unclear.

Ubuntu Questions on U&L

-1

Q: How to partition in Ubuntu 14.10 after installed?

I have new system where Installed Ubuntu 14.10, HardDisk - 1 TB, Ram - 4 GB Nothing install in OS right now. So, I want to partition of Hardisk. I want to make 2 or 3 partition instead of 1 which is right now. I tried using GParted but not unmount current partition and create any new. I attach...

ubuntu partition

Fabby

12:42 PM

@ParanoidPanda It is extremely clear: what he wants to do on DNS needs to be done on HTTP.

>:)

user136984

Oh, just the way he wrote the second bit was very confusing...

Fabby

;-)

I need 3 more upvotes here to put the best answer on top!

Do you need anything?

Apparently now: not many answers by you lately...

:P ;-)

user136984

No, I haven't been looking at many questions lately, maybe I should start again though... :D

user136984

Well, only my own questions! :D

Fabby

:D :D :D

(and thanks)

user136984

12:46 PM

:)

user136984

By the way, you wouldn't happen to know would you which package gsettings is under? As I've got to file a bug report about it on LaunchPad...

user136984

Is it Unity or something?

Fabby

lemme look

lemme grep with the packages installed first...

mmmh... I'm getting an ambiguous redirect

Ah!

@Oli: I'm trying to do a apt-cache search gsettings | grep < $(dpkg --get-selections) for @ParanoidPanda

because he wants to know which package he has installed that contains gsettings...

(obviously I'm doing something wrong)

Oli

contains?

in the package name?

Fabby

apt-cache search gsettings gives a list of packages that contain the gsettings executable

Oli

12:56 PM

Oh the binary, dpkg -S <full path>

So, dpkg -S $(which gsettings)

Fabby

Wow! I never would have thought of doing it like that!

thanks!

user136984

@Oli: So it's in the libglib2.0-bin package?

Oli

@ParanoidPanda yup

Fabby

@ParanoidPanda yup

user136984

Ok, thanks! :)

A.B.

1:01 PM

@Fabby apt-file search --regex "$(which gsettings)$" :P

A.B.

1:43 PM

@Fabby great editing Thx =)

@Fabby smartmontool support for USB devices: smartmontools.org/wiki/Supported_USB-Devices

Fabby

1:59 PM

@A.B. You're welcome!

I didn't even know that not all devices were supported...

It used to be the case that very few were supported, but I forgot that it's not a requirement.

A.B.

I can't change my own answer? askubuntu.com/a/645547/367165

@Fabby can you please add "Dear readers" as the first line?

Fabby

I just did...

(and have upvoted after my first edit, as that was what made it a great answer!) :D

A.B.

Thx =)

Tim

2:15 PM

hey everyone

A.B.

@Tim o/ =)

user139252

Having trouble with an RPi.GPIO set-up

Tim

anyone else on the eOS private beta?

user139252

Big red button, waits for falling edge

A.B.

Sorry, no

user139252

2:16 PM

Except, it randomly detects this falling edge, even when nobody is near the button

Fabby

@Tim o/

Tim

\o/

Fabby

3 minutes And I'm gone... Need to catch a train!

Tim

hmm looks like i'm drowning

~~~~~~\o/~~~~~~

Fabby

@Tim nope...

A.B.

2:17 PM

-=O^O=-

Fabby

Bye!

Tim

bye :)

Fabby

See you guys later when I'm in reach of the Internet!

A.B.

~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~\o/~~~~~~~~
~~~~~~~~~~~~~~~~~~~~

cu later =)

Rinzwind

2:35 PM

@Fabby nope

I am on 83/150 :)

user139252

Tried switching to a pull-down instead of a pull-up and I have the same problem...

user139252

If anything is plugged into or unplugged from the same outlet as the Pi, it triggers the edge detection

user139252

Also, if we hit the light switch across the room, that triggers it as well

Ask Ubuntu Meta

3:00 PM

0

Q: Nothing to ask, No question to answer.?

I am a Ubuntu user for the past 9 months now. I am getting more and more knowledge on the platform. I am member of askubuntu for roughly 6 months. Most of the questions If not all that I encounter, I can not answer them. Moreover, I generally have no question to ask. Its disturbs me, having ...

discussion

RPi Awesomeness

3:35 PM

@NathanOsman C++ question. Why would someone want to use pointers for getting a value in their program other than to point to an object

RPi Awesomeness

3:46 PM

I may have asked this already, but have forgotten :P

A.B.

4:04 PM

@kos 7,000 =)

Serg

@kos congrats , bro

Nathan Osman

@jrg Alright, United and the NYSE are both grounded due to "technical issues". Are these honest glitches or something worse?

jrg

@NathanOsman United has had 3 major outages in the last month.

NYSE, dunno.

Nathan Osman

@RPiAwesomeness Ooh. Good question. There are many benefits to pointers if used properly, though many of them apply to references as well.

jrg

there is a hearing in DC today on a new clipper act.

Nathan Osman

4:15 PM

@jrg Ah, so incompetence :P

Oli

@jrg What does that mean?

jrg

the NASDAQ is trading NYSE symbols just fine.

@Oli The Clipper Act was "backdoor all the crypto because terrorists and pedophiles"

back in the 1990s.

Oli

I see

Nathan Osman

Trading temporarily halted on New York Stock Exchange due to apparent technical issues - @CNBCNow, @business

Tweeted by BreakingNews on July 8, 2015 at 3:47 PM

RPi Awesomeness

@jrg Oh please no.

It's like gun control. You're taking away the rights of the general public to defend themselves. Sure, it might stop a few casual people here and there, but the really dangerous criminals are still going to have their ways of getting guns (or in this case, secrecy.)

jrg

4:19 PM

RESET THE GUN CONTROL MENTION CLOCK.

2

but yes.

RPi Awesomeness

I'm just using it as a reference, similar thing.

jrg

it's similar. not perfect, but similar.

Nathan Osman

@RPiAwesomeness one of the biggest benefits of using pointers is polymorphism. Let's suppose you have an Animal class with a virtual method virtual void eat();. Each derived class (Lion, Bear, etc.) can then override that method using its own implementation. If you have a pointer to a Lion (Lion*), you can pass it to a function expecting an Animal*.

RPi Awesomeness

Yes

Nathan Osman

That function can then call animal.eat() and instead of calling Animal::eat(), it will actually recognize that it is a Lion* and call Lion::eat().

RPi Awesomeness

4:20 PM

Ah! Useful.

Oli

@RPiAwesomeness Not really, encryption rarely gets its user killed ;)

Ohnohedidnt

RPi Awesomeness

@Oli I was using it as an example, it's not a 1:1 example though.

Nathan Osman

Pointers also avoid copies when you invoke functions.

RPi Awesomeness

@NathanOsman But it's really not useful for referencing other variables.

Nathan Osman

Referencing other variables?

int val = 10;
int *ptr = &val;
// ptr now points to "val"
val = 11;
std::cout << *ptr << std::endl;
// ^--- prints 11

RPi Awesomeness

4:22 PM

Yeah. eg, int *pVar = &otherVar.

Yeah, but couldn't you just reference the variable?

Nathan Osman

Oh I see what you're saying. Pointers have little value within the same scope. But let's suppose you want to modify the variable in another function:

int val = 10;
somefunction(val);

RPi Awesomeness

Exactly.

Nathan Osman

val is passed by value and will not be changed when somefunction() returns.

So you need to use either a pointer or reference to allow the function to modify the original value.

(And for passing parameters, references would be preferred.)

RPi Awesomeness

Ah, but you could use a pointer/reference in someFunction() to change that value.

Nathan Osman

void somefunction(int &val)
{
    val = 12;
}

Yup, that would change the original variable's value to 12.

Pointers can be set to null (0) but a reference may not be null (behavior is undefined).

So a reference must point to something when it is created.

int val = 10;
int &ref = val;

Pointers exist in C, but references are specific to C++.

Mateo

4:37 PM

Woah. Have you ever heard of disks the size of floppys that need a laser and fit 120mb?

Just found this, thought it was a floppy drive at first

RPi Awesomeness

o.O

Nathan Osman

@Mateo Floptical drives?

Mateo

Nathan Osman

Kind of like minidiscs, I guess.

RPi Awesomeness

wat is that

Mateo

4:42 PM

But basically the same size as floppys,

@RPiAwesomeness don't know, wish I had media for it now...

I have an old zip disk drive around somewhere

RPi Awesomeness

Huh.

Mateo

Maybe this en.m.wikipedia.org/wiki/SuperDisk

But, that dosnt use optical media does it?

A floppy does fit perfect in it though....

Nathan Osman

Minidisc was a magneto-optical storage medium.

Terrance

I'm going to agree with the magneto-optical drive. en.wikipedia.org/wiki/Magneto-optical_drive

kos

@A.B. Yep :)

@Serg Thanks!

What's up? Long time I didn't join the chat!

Mateo

4:51 PM

Sounds right, the small ones came in 128 mb

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