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00:49

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Q: How can I create a Scala BigInt that represents an integer longer than a Scala Long?

In Scala 2.12.7, how can I create a BigInt from an integer initially longer than a Long? I'm looking for something simple where I write an expression that when evaluated is my original long integer expressed as a BigInt.

support

Ubuntu Questions on U&L

01:16

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Q: Desktop won't start install Ubuntu from USB or DVD

Had Windows 7 and Ubuntu 16.04 side by side working until I tried to re-install Windows and Ubuntu after replace the old hard drives with new ones. Made bootable DVD and USB, after start up, the machine just showed the first purple Ubuntu screen then went black in both cases, the installation ju...

ubuntu boot

Ubuntu Questions on U&L

02:03

0

Q: Consistent kernel panic on `dpkg --configure -a` for Ubuntu 18.04

I'm among the many with NVIDIA driver woes on a fresh Ubuntu 18.04 instance. Right now I'm being forced to run dpkg --configure -a when I try things like sudo apt purge nvidia* However, doing so will always reproduce a kernel panic. In the GUI, this presents as a freeze. Since I am using a GeFor...

ubuntu apt drivers nvidia dpkg

Ubuntu Questions on U&L

02:49

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Q: Are core dump files created somewhere in these cases?

$ cat /proc/sys/kernel/core_pattern |/usr/share/apport/apport %p %s %c %d %P which I guess means to pipe the core dump to the apport script. Will the apport script write the input core dump to some file? If yes, where will the file be created? (My /var/crash/ doesn't have a core dump file from ...

ubuntu core-dump

PerlDuck

11:32

@SergiyKolodyazhnyy Thank you. That's what I thought.

karel

11:48

Split review 2 votes dupe/2 votes too broad on this question, but it's not a fair duplicate of the suggested target question. I need one CV from a reviewer to close this question as too broad.

Ubuntu Questions on U&L

12:07

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Q: Unable to create a proper PEM for Redis Desktop Manager

On Ubuntu, I have a problem to establish a connection to redis server using SSH tunnel and SSH key with Redis Desktop Manager (RDM). What are the symptoms? I can connect to the server where redis is running using "plain" ssh and my id_rsa, other utilities which use either the SSH agent or keys...

ubuntu ssh-tunneling redis

PerlDuck

@karel The comment the OP refers to was from me. OMG, what have I done...?

karel

@PerlDuck You didn't do anything. It's probably just a random occurrence.

PerlDuck

Yes. Some of my comments are indeed random. ;-)

user5954246

16:34

Hello..
Yesterday, I updated my ubuntu to 18.04.. After doing that.. My GUI has this new font.. and it gives me cancer everytime I look at it.. I looked up on the website how can I change it..

Changes I made to topbar did work... But the changes I made to other don't work.. for some reason.

Let me show picture of the font

PerlDuck

The font looks pretty to me. But taste differs. :-)

user5954246

It might not look that ugly to you.. but font size is large. I always keep small fonts :(

My IDE's font is 10.. But that font looks like 14-15

PerlDuck

So you are talking about Firefox's tab font as opposed to its title bar font?

user5954246

No that thing is everywhere.. Chrome, Firefox, IntelliJ, VSCode..

You can't change them inside the applications..

I tried changing this.. Nothing works.. except the interface one

PerlDuck

Meanwhile on the phone: "Hello? Am I speaking to HP? I ordered a LaserJet but you sent me printer instead!"

Zanna

16:47

lol

PerlDuck

:-)

user5954246

eeee. gives me a feeling that I messed up?

PerlDuck

Oops. I missed an "a". Damn. Too late to edit.

user5954246

17:01

As it happens.. IntellJ does let you do it.. :-)

Ubuntu Questions on U&L

18:48

0

Q: Accidentaly moved “/* to a simple folder”

As you can guess by the title of this post i did "mv /* ./" where ./ is "/home/user/a/worlds/". I managed to get back the lib and all so i can run without problems each command except some but i can find the library attached to them easily and run with the libs. The only problems i've got is tha...

linux ubuntu sudo su

Ubuntu Questions on U&L

19:35

0

Q: Stability of linux

I have one "theoretical" question regarding the stability of Linux. Is there a way that somebody verifies it? I recently installed Debian 9 (KDE) and given my experience with other distros, I was expecting to see every time that I shut it off the logo or somehting similar (like it happens in M...

linux debian ubuntu kde stability

Ubuntu Questions on U&L

20:21

0

Q: KDE on LTS 18.04 - Cannot Upgrade or 'sudo apt --fix-broken install'

https://askubuntu.com/questions/176121/dpkg-error-trying-to-overwrite-file-which-is-also-in https://askubuntu.com/questions/1067430/apt-fix-broken-install-does-not-work-package-manager-broken-after-installing https://askubuntu.com/questions/899497/cannot-fix-broken-packages-apt-get-f-install-does...

ubuntu apt package-management kde upgrade

jrg

21:37

Any have strong opinions about 18.04 vs 18.10?

Any killer features that came in 18.10 that are worth a wipe/reinstall?

Benny

22:17

I want to try 18.10. If all your apps will run properly on 18.10 so why not, I think it's great!

Aaron Hall

22:29

My cousin set up a PAN and his ip route looks messed up, he can't ping 8.8.8.8, any suggestions?

:)

Fabby

Fastest Gun In The West problem: Looking at screenshot

Aaron Hall

That nameserver looks wrong

Fabby

@AaronHall No, that's internal Ubuntu.

Aaron Hall

and my ip route has my wifi router...

Fabby

it should resolve to the DG.

Aaron Hall

22:32

his should be his ethernet, it's a desktop

IDK what you're talking about.

I'm a networking... noob.

Fabby

Forget I asked that.

He has no DG. (Default gateway)

so the only communication he has is based on broadcast.

8.8.8.8 is not a broadcast address, but a routed address.

Aaron Hall

I've been googling "Network is unreachable" because of the error from when he tries to ping.

Fabby

Nath, he needs to enter 192.168.1.1(probably) as the default gateway.

Aaron Hall

where does he do that?

Fabby

The PAN will then use broadcast (good) and the WAN will use routing.

@AaronHall Where did he set up his PAN?

(Which OS? Ubuntu?)

Aaron Hall

22:38

IDK what those things are.

Fabby

PAN = Personal Area Network, WAN = Wide Area Network, LAN = Local Area Network, MAN = Metropolitan Area network

Aaron Hall

He's using Ubuntu 12.04

Fabby

@AaronHall Urgh...

Aaron Hall

"broadcast" and "routing" - I don't know exactly what is meant by those.

Fabby

Last time I used that was 4 years ago

@AaronHall Try telling him he has no Default Gateway on his LAN

if he doesn't know what that is, I need to know what he did exactly to set up his PAN.

Then I'll be able to tell him what to do.

¯\_(ツ)_/¯

Aaron Hall

22:42

He doesn't know what a default gateway is.

Fabby

@AaronHall My left telepathic antenna broke off, so I can't reach into his system telepathically any more...

:P

Aaron Hall

I've been asking him how he set up his PAN, and he doesn't seem to know.

He says he plugged his cell phone into his computer and it "auto-did it"

Fabby

:/

@AaronHall That needs a support session with him in chat...

IDK what the Plug and Pray did...

Aaron Hall

Yeah, no joke, I've got him on a phone call and he's been texting me screenshots taken with his phone.

Fabby

@AaronHall :D

@AaronHall Is he a user here?

Aaron Hall

22:46

no

Fabby

Anywhere on the network?

Aaron Hall

nope

I'm having him send me more screenshots...

Fabby

ok, lets start with the basics:

ip address

Aaron Hall

ip a is the same thing, right?

jrg

Yeah

Fabby

22:50

@AaronHall yup

Aaron Hall

yup?

Fabby

So he has a PAN only: no Ethernet and no WiFi.

(thinking)

Aaron Hall

ok, I don't know why my cousin has to be so "extra" but he gets ideas and tries them out, and manages to screw up his poo every time...

Fabby

@AaronHall Tell him you're on a 100$ / hour support call right now and that he has to pay you back for this.

:D :D :D

That'll stop him from doing stupid shit in the future!

.

wrong window, sorry

jrg

~ifconfig got replaced by the ip tools @Fabby~ and i'm too slow

Fabby

22:53

@jrg I know.

@jrg :D

Rinzwind

@jrg not on 12.04 :P

jrg

@Rinzwind You're right, i missed that message.

Rinzwind

:-)

Fabby

@AaronHall try the following:

ip route add default via 192.168.1.1 dev pan1

then try pinging 8.8.8.8

Aaron Hall

ok

Fabby

22:58

Ping me with the result, as I'm working the queues in the background.

Aaron Hall

ok

he's finally typing the command (I had to text it to him... char by char dictation is so painful...)

should that be sudo?

He says it says "operation not permitted"

@Fabby ^^

Rinzwind

yes :P

Fabby

What the wizard said... (Yes)

;-) :-)

Aaron Hall

k

@Fabby "next hop has invalid gateway"

Fabby

Urgh... (thinking)

Rinzwind

23:05

delete default

ip route delete default via 192.168.1.1 dev pan1

Aaron Hall

he didn't put the second 1.

sorry for my cousin.

Rinzwind

tsk

Fabby

@AaronHall I was about to ask that.

@AaronHall Your cousin should indeed not be madding with these things.

Aaron Hall

He's sending me a screenshot of the ping...

Fabby

(did you tell him about to 100$/h?)

Aaron Hall

23:07

no joke, he's incompetent...

We've had a conversation about how this is not my job, and I'm a programmer, and if he breaks his computer, he needs to get it fixed before I help him keep learning Python...

Fabby

Hey, seeing your cousin doesn't know what he's doing:

@AaronHall Why did he set up a PAN?

(and how?)

Aaron Hall

he wanted to get a file from his phone onto his computer. Yes that does not follow that he should set up a PAN.

Fabby

Lemme rephrase: what is he trying to do?

@AaronHall ah.

indeed. Android or iPhone?

a PAN is for wearables: to hook up a watch or IP phone to your computer.

Aaron Hall

I think he's trying to meth up his life, but he doesn't admit it, so I can't keep asking him "are you doing drugs!?"

Android.

Fabby

@AaronHall :D is he???

;-)

@AaronHall so he plugged the USB cable into his PC and wants to transfer a file???

he should delete the PAN, go to his phone in the settings

(which Androind version?)

Aaron Hall

23:11

I pointed out his schizo-typic behavior, asked him about any diagnoses he may have had, and he says a psychologist told him he has an "external locus of control."

how do you delete the PAN? he has said he'd like to do that.

Fabby

grin

@AaronHall How did he set it up?

Does he have WiFi?

if he did, he replaced his WiFi by a PAN...

he should use a cable to hook up his PC to the Internet now until this gets resolved.

Aaron Hall

He's very proactive for someone with an external locus of control...

Fabby

yeah well... It is what it is.

Does he know which android version he has?

7? 8?

Aaron Hall

it's a desktop, I don't think it has a wifi antenna

Fabby

ah! GOOD!

:D

Aaron Hall

23:15

8.0.0

with a security patch?

Fabby

OK, so he should go to the phone and go to settings and.

(looking it up on my 80

Rinzwind

this wizard is now a wiZZZZZZZZZZZZard :=)

Aaron Hall

night!

Fabby

@AaronHall connected devices

then USB

then MTP

Aaron Hall

Does he need it to be connected via usb while he's doing it?

Fabby

23:18

and then the phone shows up as a USB stick and he can transfer files

@AaronHall Depends on the phone: if it's grayed out: yes.

Aaron Hall

he's not seeing "connected devices"

he sees "connections"

I'm telling him to plug in

Fabby

tell him to tap the looking glass and type "USB"

@AaronHall Good.

From the output of his ip address command I can see he does not have the network cable plugged in.

he should plug that in too.

@AaronHall Can I go for a quick leak?

(3 minutes)

Aaron Hall

ok

Fabby

BRB

Aaron Hall

3 mins ago, by Fabby

From the output of his ip address command I can see he does not have the network cable plugged in.

Fabby

23:25

@AaronHall back

So? what happened in the meantime?

Aaron Hall

I told him what I quoted, and I'm going back to making him try another cable on his desktop (he has a printer and a playstation, I'm making him unplug his playstation and try that cable...)

he's verifying the playstation has internet, and I'm going to make him use that cable...

Fabby

Working the queues while he's doing that.

Ping me with any new information, please?

P.S. 00:30 AM here now...

Aaron Hall

@Fabby he plugged the ethernet cable, ip a didn't change, so I'm telling him to reboot.

I doubt that will do it though...

Fabby

this is weird.

If that doesn't solve the problem, tell him to unplug the phone, and leave only the Ethernet cable in

and provide the output to ip address

Aaron Hall

yeah...

he's got a vpn on his phone... does that make a diff?

Fabby

23:43

(thinking)

It depends WTF he did with the PAN.

just unplug the damn phone and let's get his PC connected to the Internet.

0:-)

@AaronHall 00:44 AM now and calling oit quits at 1 AM

Aaron Hall

fair enough

Fabby

23:56

@AaronHall 5 minutes and counting.

(Sorry: need to get up in 7 hours)

Aaron Hall

ok, I'm going to let him try a couple more things, we'll try a live thumb-drive boot, ensure the hardware works, back up his stuff, then reinstall.

he shouldn't be on 12.04 anyways

he is supposed to have an 18.04 live thumbdrive

@Fabby ^^^^

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