Ask Ubuntu General Room

This might be unnecessary to some extent, however, I hope to make things as seamless as possible. So the question is like this: I have edited the /etc/fstab to mount two windows partition automatically at my Linux startup. However, the partitions are mounted "Removable", which means that there is...

TheWanderer

7:29 AM

@Zanna thanks! It found it!

no more 5% volume steps

Benny

7:43 AM

@TheWanderer kmixrc is in the kernel? you use to compile Ubuntu?

Zanna

11:19 AM

@TheWanderer sweet!

Rinzwind

11:41 AM

0

Q: Is there an advanced hemorrhoid simulation software available for Ubuntu?

My daughter plans to enroll in medical school and wants to specialize in Proctology. A hemorrhoid simulator would help a great deal in her studies, but I can't find anything to fulfill this need in the Ubuntu Software Center. It's a pity, because I convinced her to start using Ubuntu, but she may...

software-recommendation

weirdest q ever :=)

dessert

lol

I would really like to see a simulator like that. Oh wait, maybe not…

> I can not find similar software for Windows to download either

@Rinzwind looks funny in your browser history now :)

Rinzwind

I always go private mode :=)

Rinzwind

12:56 PM

askubuntu.com/questions/1049067/… @pomsky @cl-netbox if you agree please reopen :=)

Zanna

Mint is off topic

dessert

and the information that this is on Linux Mint may very well be crucial – I disagree with the removal of this information from the question

Rinzwind

The problem is NOT about the desktop; it is about samba

He needs a method to edit /etc/smb.conf

Zanna

doesn't matter imho

Rinzwind

it -really- does

user136984

1:01 PM

Generally if it's not actually Linux Mint specific then we should reopen it.

Zanna

nope

Rinzwind

Y E S

Zanna

in Raiders of the Lost Downboat, Oct 18 '17 at 15:45, by Eliah Kagan

@DavidFoerster I have no problem with the change to the close reason, but I don't follow your argument at all. Our actual policies, summarized in the help and established by community consensus on meta, say what to do with questions that are not about Ubuntu because a different distro, and not Ubuntu, is being used.

@GreatUncleBulgaria that is not the policy

that's the policy for EOL

not for other distros

user136984

@Zanna: But that is what we have been doing, and was the general mod concesus last time checked with them...

Zanna

when you say "that is what we have been doing" I don't know who you mean

user136984

1:04 PM

Well since being around here, seen a lot of it.

Zanna

please read the posts linked by Eliah Kagan and points made after the message I linked to ^

I am busy working right now. Please refer to the message I linked to and the meta posts. Feel free to ping me, but I might not be able to reply for a while

user136984

.Ask on Meta, then we can all agree on how to move forwards with this sort of thing because it has been rather informal so far.

Zanna

already been asked on meta

user136984

Ok, how about we just migrate it then to U&L.

Zanna

awesome

Rinzwind

1:09 PM

ah

here is a dupe

7

A: How can I create a samba share from the command line?

Use Samba's net usershare command to share directories from the command line, IMHO this is less clunky and much safer than fiddling around in the main smb.conf file: net usershare add share_name /home/user/somefolder "Share description" everyone:F guest_ok=y To make these shares permanent (i.e...

dupe answer that is ;)

Zanna

:)

Rinzwind

now HERE Is an offtopic question :=)

0

Q: Ubuntu performs better than Windows

How come Ubuntu functions better than windows? For example, when I run Minecraft on Ubuntu, flawless. When I run Minecraft on Windows, it lags

windows

(and this is accompanied by a LOL)

dessert

I’m with Zanna there…

cl-netbox

@Rinzwind done Rinzy ! :)

Rinzwind

:X

cl-netbox

1:23 PM

@Rinzwind wasn't it a minty Q before ? :D

Zanna

facepalm

@dessert if it's about moderation, I'm probably with Eliah Kagan

:)

cl-netbox

@GreatUncleBulgaria agree ... Hi my uncle ! :D Good afternoon to you ! :)

Hi @dessert @Zanna ! :) Good afternoon to you too ! :)

Zanna

afternoon :)

Rinzwind

1:52 PM

@cl-netbox you did not read what was posted after that did you :+)

cl-netbox

2:13 PM

@Rinzwind correct ... I didn't ... I just saw mint and as I know that our close hunters wnat to remove such posts as fast as lightning, I thought I'd help them (this time) ! :D :D :D

TheWanderer

2:24 PM

@Benny wat

Benny

2:59 PM

@TheWanderer, Never mind =)

Byte Commander

@Rinzwind guy changed his mind :P

0

Q: Ubuntu 18.04 painfully slow

Ubuntu Bionic Beaver is so slow. Games run slow and so fourth. It's not my pc because I tried 17.10 before and it was fine

14.04

Rinzwind

@ByteCommander wtf :D

I bit >:=D @ByteCommander

for some reason I am not happy with my answer but can't seem to pinpoint why. anyone got something to say that might trigger that? :X

4

A: Why proprietary software in Ubuntu Software Center?

However the Software Center is full of proprietary software. How come? I thought Ubuntu is all about Open Source Definition of "universe": Universe – Community-Maintained, Open-Source Software The vast majority of the software in the Ubuntu Software Center comes from the Universe repo...

dessert

3:33 PM

@Rinzwind “painfully slow” and “faster than Windows” actually doesn’t contradict each other :)

Rinzwind

that's true :P

TheWanderer

#roasted

Rinzwind

and since windows is crap anyways even expected >:)

TheWanderer

@dessert does the possessive of tu in Portuguese follow the same rules as você?

Like teu, tua?

dessert

@TheWanderer er… which rules are you referring to?

TheWanderer

3:36 PM

next message

Teu cachorro, tua casa

is that correct?

dessert

yes, that’s correct

TheWanderer

OK thanks

pomsky

@ByteCommander Now I get a feeling that this person is troll who's trying to trigger the community into a heated debate or something.

TheWanderer

Duolingo started to teach tu, but it's still not giving a lot

pomsky

@dessert and who's upvoting those posts and why?!

pity-upvotes?

TheWanderer

3:38 PM

achievement hunters

dessert

@pomsky doesn’t every question get one automatic upvote?

TheWanderer

no o_O

pomsky

@dessert Really?! I'm not aware of that

Rinzwind

@dessert lol

dessert

trolls around

cl-netbox

3:41 PM

@Rinzwind :D :D :D

Rinzwind

it was not me that upvoted :=)

I -1'd both >:)

0

Q: Could alias python=python3 in my bashrc cause problems?

I would like to use python3 as my default python when working with the terminal. If I added the line alias python=python3 in my ~/.bashrc, could that cause problems with other programs?

command-line python gnome-terminal python3 bashrc

that reads as trouble

Ubuntu Questions on U&L

0

Q: Why does ^C on netcat client close the server whereas ^C on server doesn't close the client?

I tested on Ubuntu 18.04 LTS the venerable netcat. The netcat comes from OpenBSD: $ dpkg -l|grep netcat ii netcat-openbsd 1.187-1 amd64 TCP/IP swiss army knife When I use nc -v -v -v -l -p 1234 to open the server and subsequently...

ubuntu openbsd netcat

dessert

See? One automatic upvote!

1

Q: Could alias python=python3 in my bashrc cause problems?

I would like to use python3 as my default python when working with the terminal. If I added the line alias python=python3 in my ~/.bashrc, could that cause problems with other programs?

command-line python gnome-terminal python3 bashrc

Rinzwind

@dessert duped it >:)

OH DAMN

my gold kicked in >:)

but it seems safe to do :)

dessert

@Rinzwind yes it does

Zanna

4:44 PM

so just taking a break from work... since the question has no less than 4 reopen votes...

it seems to me totally unreasonable to make reviewers responsible for knowing exactly how Ubuntu differs from any other distro

questions about other distros are off topic, and there are really really good reasons for that

there are some people who edit distro info out of questions because they have such awesome knowledge they know the problem isn't specific to the other distro, but I think it's a big problem to set a precedent for doing that or a policy for doing that. If non-super knowledgeable people who just had the vague or wrong idea that something was the same on Ubuntu and Mint were doing that, it would be a really unmanageable situation for reviewers and probably affect the site quality badly over time

4

we don't close questions that are specific to EOL versions and that makes sense because we know what has changed between Ubuntu versions - that information is easily available, and somewhat embodied on the site

but the differences between even similar distros are subtle, myriad and not documented in any accessible way anywhere

ok, back to work

dessert

5:07 PM

indeed holy this opinion is -^

PerlDuck

5:29 PM

@dessert (whispers) I have no idea what particular post she is talking about but it sounds reasonable.

Hi @Rinzwind. Did you know that your nick always reminds me of Rinspeed, a car tuner specialized in Porsche?

RobotHumans

I'm not against it being closed (if it's the why is linux better than windows question). Basically there was a comment about it being opinion based and needing to understand lots of intricacies.

So, while Ubuntu, for example, could be more performant in some circumstances due to the way things are written and some performance hungry optimizations (I'm thinking things like being able to run a distro straight from ram most of the time) vs Windows that loses all but basic functionality when using an ERD - vs the other side of the argument where we have

Why does linux gaming suck - because people write to directX not openGL. If you open the door, you have to allow both. So, I'm of the mind to keep it out of bounds, if it's the question I'm thinking of.

Rinzwind

@PerlDuck I am a wizard! :=D

PerlDuck

5:49 PM

@Rinzwind I figured that already. :-D Btw, driving in the NL is a real pleasure for me, especially with my underpowered Station Wagon: everything goes smooth and people are chilled. totally different from German "Autobahn".

Ubuntu Questions on U&L

6:33 PM

0

Q: How to rescue Ubuntu Server 16.04 which is getting shut down by systemd script?

I wrote a program which automatically shuts down a Raspberry Pi 3b (Ubuntu Server 16.04) as soon as a button is pressed. It's nothing than a small bash script which reads a GPIO pin of the Pi every second and shots down the device if the button is pressed. However, I did a mistake and the condit...

ubuntu boot systemd startup

dessert

6:58 PM

@PerlDuck this minty question, see its edit history

PerlDuck

@dessert OK, thank you. To be honest: whenever I read NFS, SMB and similar things, then I'm out. I hate all of them coz I never get them configured properly and eventually give up and resort to something not that picky. Like scp.

Zanna

7:51 PM

further to my earlier comments :/

TheWanderer

isn't Mac's BASH different from POSIX?

Zanna

it's very very old

see the Unix & Linux SE Bash tag wiki

oh no, I actually meant the Stack Overflow Bash tag wiki

sorry

@SergiyKolodyazhnyy maybe that one? Left open & out of queue now :)

Sergiy Kolodyazhnyy

8:21 PM

@Zanna Yepz, that one. And there was another one, but I voted to reopen and David Foester ,too, so probably soon will be reopened

Zanna

oh it got closed?

was it the one about a mac though?

Sergiy Kolodyazhnyy

@TheWanderer POSIX is standard, and bash has --posix flag or set -o posix. Idk about bash on mac, but if we're taking about POSIX as standard, bash on any OS has extra features such as arrays and here strings that aren't meant for /bin/sh

@Zanna Nah, I was talking about this thing:askubuntu.com/q/1048935/295286

Zanna

@SergiyKolodyazhnyy ... on a mac

so, off topic

Sergiy Kolodyazhnyy

-_____- Oh, I see it now

Eh, still bash,though

and non-Mac specific

Zanna

still off topic though!

Sergiy Kolodyazhnyy

8:28 PM

Eh, but applicable to Ubuntu

dessert

We really need a meta discussion about that. Being applicable to Ubuntu in any way doesn’t make a question on topic!

Zanna

@SergiyKolodyazhnyy Maybe. How would I or any other reviewer know that? In any case, who needs that question? DF wants to close as dupe of ultra generic q.

Do people want to totally change our scope and policy on other distros and force reviewers to learn about every distro to decide if something on another distro is about Ubuntu?

can folk read meta please... it is all there!

Sergiy Kolodyazhnyy

@dessert There's been plenty of such questions already, and there won't be a single, final one. I personally have stopped worrying about it.

Byte Commander

> can folk read meta please... it is all there!

That's the problem. It's all there. All and much more.

Sergiy Kolodyazhnyy

Praise POSIX and though shall reach Nirvanna !

Byte Commander

8:33 PM

Nobody "just reads" that

Sergiy Kolodyazhnyy

@ByteCommander And too much more, too

Byte Commander

posix is boring

way too much more, actually

Sergiy Kolodyazhnyy

@ByteCommander Boring doesn't keep servers running. Portability does :)

Byte Commander

Or just staying with the same system or another one that isn't incompatible

Sergiy Kolodyazhnyy

@ByteCommander Yeah, what if you inherited the environment after the last sysadmin left ? And no accountant will let you spend hardly earned company money ( there's sarcasm somewhere ) on getting rid of old outdated system to replace with new shiny Ubuntu.

Byte Commander

8:36 PM

kk, not in arguing mood...

Sergiy Kolodyazhnyy

Who said we're here to argue ?

I've left all that behind, personally. I'm now so zen

Byte Commander

aware wolf? :D

4

Sergiy Kolodyazhnyy

8:56 PM

@ByteCommander Yessir. In fact, I'm migrating to wolf OS very soon XD

Wolf OS has no cowsay, only moonmoonsay

Byte Commander

why not wolfhowl?

Sergiy Kolodyazhnyy

@ByteCommander howl command is replacement for echo. Would be confusing

Byte Commander

I should alias it! :D

Sergiy Kolodyazhnyy

Good idea !

user136984

9:24 PM

Any ideas anyone?

user136984

4

Q: How to limit resource usage for a given process?

I have a process for an application which needs to run, but ends up using far too much IO usage for what it does. And really crashes my computer, making it impossible to do anything else whilst it is running. So I was wondering if there is a way to limit IO usage, Memory and CPU for a given proc...

configuration cpu process memory-usage io

Fabby

reading...

@GreatUncleBulgaria ionice...

@GreatUncleBulgaria How much CPU does the application ise.

user136984

@Fabby: No, that's just for the "nice".

Fabby

can you give an example?

user136984

Like all of it.

Fabby

9:35 PM

@GreatUncleBulgaria No, it limits too.

dessert

@GreatUncleBulgaria I think you should ask a single question – is it about IO usage, memory usage or CPU usage?

Fabby

@GreatUncleBulgaria Ah than it's easy: cpulimit

user136984

@dessert: It's about resource usage.

dessert

Isn’t that a bit broad? I think both ionice and cpulimit would make for good (if not perfect) answers, but nobody writes an answer. :(

user136984

Given that it's the one subject and quite specific, think not.

Sergiy Kolodyazhnyy

9:42 PM

It's not too broad, but it's just a matter of combining 3 commands, and that's it,IMHO.I don't see what's so complex about this question

Fabby

@GreatUncleBulgaria Answered... Refining...

user136984

@Fabby: Yes, however, the RAM part is not covered.

Fabby

did you mention that?

lemme read again.

adding that

dessert

@Fabby grep szMyProgram | grep -v grep equals grep [s]zMyProgram

Fabby

9:59 PM

@dessert Please edit

@GreatUncleBulgaria RAM is now covered.

512M of RAM and 1024 of swap... You can set those to anything you want.

@GreatUncleBulgaria refining...

user136984

@Fabby: Great! Thank you!

dessert

@Fabby please fix the switching caps in “MyGroup” vs. “myGroup”

great answer btw

Fabby

@dessert Please read again...

@dessert if error still there, please edit as I can't see anything anymore

@dessert Ah!

dessert

@Fabby ;)

user136984

:) :) :)

Sergiy Kolodyazhnyy

10:04 PM

good answer, but if I may suggest @Fabby , pgrep -f myProgramName may save you on plumbing

Fabby

@GreatUncleBulgaria Try now...

Haven't tested yet...

@GreatUncleBulgaria STOP!

@SergiyKolodyazhnyy Please edit...

user136984

:D

Sergiy Kolodyazhnyy

Shall do in a jiffy

dessert

@Fabby and in the cgexec line? is that supposed to be memory:/szMyGroup as well?

Fabby

@dessert Checking

dessert

10:07 PM

is it really /sys/fs/cgroup/memory/szMyGroupmemory.memsw.limit_in_bytes or rather /sys/fs/cgroup/memory/szMyGroup/memory.memsw.limit_in_bytes?

Fabby

@dessert Damn! Thanks!

I'm going to test now...

dessert

would edit it myself if I had any idea what you’re doing there ;D

Fabby

:D

dessert

but just adding a slash to a path without any knowledge about it just feels wrong

Fabby

@GreatUncleBulgaria OK. Lemme first use ffmpeg to start a videoencode normally

Sergiy Kolodyazhnyy

10:15 PM

@Fabby How's that ?

Fabby

1G VMemory, 50% CPU, 100M RAM

Now going to limit it

dessert

@Fabby did you see chat.stackexchange.com/transcript/message/45307576#45307576 ?

Fabby

@dessert damn! Slash missing

dessert

we four should work together more often :)

Sergiy Kolodyazhnyy

nods agreeably

user136984

10:19 PM

Yes :D

Fabby

:D

I'm running into an issue while testing. Please be patient.

editing

Sergiy Kolodyazhnyy

I still need to wrap brains around breaking the ARG_MAX limit

Fabby

it needs a sudo tee

continuing testing

@SergiyKolodyazhnyy Huh?

You can't sudo echo, so you need to echo | sudo tee right???

dessert

@SebastianStark I think you‘ll find that interesting as well: askubuntu.com/a/1049163/507051

@Fabby you’re doing it right :)

Fabby

10:34 PM

I'm an idiot!

@GreatUncleBulgaria another error removed. Please hold.

user136984

:D

Fabby

adding sudo commands as it's not obvious without running as root

dessert

@Fabby well, it’s late ;) didn’t see that as well, and it was so obvious…

Fabby

@dessert :D

Good to know I'm not the only one...

;-)

Sergiy Kolodyazhnyy

@Fabby Basically, I'm working on this unix.stackexchange.com/q/451486/85039 and an answer on related askubuntu question. getconf ARG_MAX gives the size in bytes, so I need to somehow make an array of words or numbers what in total byte-size (not array length) will be just below or just above what getconf ARG_MAX gives

user136984

10:42 PM

Anyway

user136984

Thanks folks!

Fabby

@dessert hey, I didn't know what the [s] in grep does, but it doesn't work any more

axf | grep [s]ffmpeg | awk '{print "sudo ionice --class 3 --pid " $1}'

no output

dessert

@Fabby it’s just a regex

Fabby

ps axf | grep ffmpeg | awk '{print "sudo ionice --class 3 --pid " $1}'

sudo ionice --class 3 --pid 14248
sudo ionice --class 3 --pid 14249
sudo ionice --class 3 --pid 14304

dessert

you can enclose any character, I just usually use the first one

ps axf | grep [f]fmpeg | awk '{print "sudo ionice --class 3 --pid " $1}'

Fabby

10:44 PM

ah, goddit

user136984

And goodnight! :)

dessert

@GreatUncleBulgaria sleep well!

Fabby

@GreatUncleBulgaria OK, test tomorrow and leave feedback

Do you still have my skype name?

user136984

See you tomorrow!

user136984

Nope

Fabby

10:45 PM

@GreatUncleBulgaria Skypename?

Mine... Do you still have it?

user136984

And don't use Skype.

user136984

;)

Fabby

Do you still remember my full name

user136984

No

Fabby

ping me on hangouts then if I don'rt respond here...

user136984

10:46 PM

Ok

Fabby

goddit?

user136984

Got it!

Fabby

@dessert I'm going to remove the [s]: it's confusing...

(sorry)

user136984

Bye

Fabby

@SergiyKolodyazhnyy As Great-uncle is going to sleep looking at yours first.

dessert

10:48 PM

@Fabby haha, it’s ok, just remember to pipe through grep -v grep again then

Fabby

@dessert hold on... Why???

dessert

@Fabby to remove the grep process itself from the list, that’s what it does

Fabby

Oh... Well, it can be ioniced too. Who cares?

dessert

lol

Fabby

it makes for a better readable command

I know what you're trying to say, but it doesn't matter in this case...

anyway, back to Serg's question.... I've read the first sentence 3 times now and nothing of the rest!

:P ;-) :P

dessert

10:52 PM

@SergiyKolodyazhnyy ulimit -s times 256 gives getconf ARG_MAX

Fabby

@SergiyKolodyazhnyy so you want to break stuff?

to test your error validation or so?

you can do a wc, take the third column-1 set that as a limit and you won't have enough.

@SergiyKolodyazhnyy there is an answer (only saw now)

Doesn't that work?

Back to Great-uncle's answer

Sergiy Kolodyazhnyy

@Fabby Basically, yes. I want to find ways to reliably reproduce error, and then play with a few ways to handle it. And yes I wanted to go with wc first, but that didn't quite give me what I need and was running to long

@Fabby The answer gives a way to reproduce the error but not generate enough filenames that they adhere to bytesize. I'm testing something else now

i=1; while /bin/true {1..$i} || { echo $i; break;} ; do ((i++)); done

Also, somebody please slap me before i start ranting about people being very cheap and doing stupid things instead of actually using the money to do things properly instead of sh!tf4ckery

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