Ask Ubuntu General Room

Byte Commander

10:00

If you're living right down the street of a hardware shop...

reversiblean

"root filesystem should generally be small".. what do you guys thinks about this statement? I have 25gb root and it still seems not enough

Rinzwind

I agree. And my desktop has a 10Gb and never ran into problems with it.
On a server /var/ should be mounted itself.

A.B.

@reversiblean /dev/sda1 103G 23G 76G 23% /

Rinzwind

@reversiblean then again. Having a 1Tb disk makes it meaningless to make partitions if your systems is not going to go over 250Gb

Byte Commander

@reversiblean Depends on what you have mounted from external partitions.

Rinzwind

10:03

what the f

Stage 4 crash Yunnan 2015

►

reversiblean

@A.B. 103G thats large

Rinzwind

cyclist ^ run into competitors racing the other way

A.B.

@reversiblean It's a SSD

reversiblean

I'd probably consider lvm and seperate var next time I reinstall.

hbdgaf

@Rinzwind Ouch. Fails are fun, but wins are better

Maxx Chance hopping the stairs

►

Rinzwind

10:07

@reversiblean if it is a server and you host mysql you can also put the database outside of / That is nowadays more custom.

and very well documented too.

A.B.

@kos without pipes? askubuntu.com/a/700346/367165 o_O :D

kos

@A.B. Yes. The question can be useful, but that it's an absurd requirement.

I see Oli added a solution without pipes though.

A.B.

@kos I have quoted you in my answer >:)

Rinzwind

@A.B. me likes <3

A.B.

@Rinzwind Yes, mee too, and as @kos said, it's an absurd requirement

Ok, that says all:

> It is. Its a challenge between me and my co-worker, and this was one of the requirements

reversiblean

10:13

@Rinzwind 10GB root without any issue? you may have a separate /usr as well, I guess. My /usr directory almost takes 7G

edward torvalds

is a command throws error like error code = -13 where do I find this error meaning? it is not in man page

Rinzwind

@reversiblean nope.

Nathan Osman

@edwardtorvalds Is that an exit code?

edward torvalds

no

it is error on STDOUT

not obtained by echo $?

Rinzwind

@reversiblean on a server though I have it a bit higher. Or sometimes we do not even use partition at all and just use a big /

Nathan Osman

10:15

@edwardtorvalds 13 is the standard error number for EACCES, meaning access to a resource was denied.

It could be that the program just changed the sign of the number.

edward torvalds

does this standard is used by all commands?

Nathan Osman

It's a return value from standard library functions.

edward torvalds

ok

thanks

Nathan Osman

virtsync.com/c-error-codes-include-errno

^--- there's a more complete list

kos

@A.B. I'm not sure if voting to close it. Those challenges really should be posted at codegolf.SE, and Jacob Vlijm is basically right here: askubuntu.com/questions/700325/…

edward torvalds

10:17

@NathanOsman , another question, I used dd if=/dev/sdb of=chromixium.iso to get iso from a formatted pendrive, but I am not able to boot from that iso in virtualbox

Nathan Osman

An ISO file is different from a raw disk image.

edward torvalds

is there any way to get iso back from usb pendrive

Nathan Osman

Do you really need an ISO file? You should be able to provide the RAW image directly to VirtualBox.

A.B.

Penguins are awesome =) askubuntu.com/a/700312/367165

edward torvalds

@NathanOsman not really

A.B.

10:21

^^^ wow =)

15:01

exact match

edward torvalds

@NathanOsman what format does VB need the raw image in?

hg8

@A.B. Exact match answer too :p

A.B.

:D

hg8

@A.B. The same happened with Serg yesterday : askubuntu.com/q/700037/338915

=P

A.B.

CentOS DVD ISO 4GB o_O 1 hour download time. I need more bandwith

Nathan Osman

10:24

A.B.

Meh, the Tox thing =)

Nathan Osman

@edwardtorvalds you merely need to specify the correct format when choosing the image.

edward torvalds

hehe

@NathanOsman I found another simple way of setting up apt cache, by that method all my computers will use same directory, which you can set in /etc/apt/apt.conf

all you have to do is put that dir on any computer on network

Nathan Osman

Ah, okay.

edward torvalds

 cat /etc/apt/apt.conf
 Dir::Cache::archives "/samba/raspberry/archives/";

:D

A.B.

10:28

bug or feature, I'm not sure askubuntu.com/a/700350/367165

edward torvalds

@A.B. if you can use feature, if it gives your problem then bug :D

A.B.

@edwardtorvalds =)

Nathan Osman

@edwardtorvalds turns out that isn't the same RAW I was thinking of :P But it's still pretty easy. Open a terminal and run "VBoxManage convertfromraw --format VDI <raw image file> image.vdi"

Then you can add the .vdi file.

blade19899

This is like my only really 'stable' project:

github.com: blade1989/jquery.toc.js

edward torvalds

and this raw comes from dd right?

A.B.

10:35

2 UVs for legendary o_O That's crazy

edward torvalds

anybody here on college/school vacations?

A.B.

10:49

L E G E N D A R Y

5

hg8

@A.B. Congratulation!

A.B.

did not earn???

edward torvalds

heh

hg8

@A.B. It was a trick

edward torvalds

hehe

Byte Commander

10:51

Cliff Richard - Congratulations

►

A.B.

:D

But that's me

hg8

Note: if the keyboard LEDs are blinking, that likely means the kernel has panicked. (Equivalent to a BSOD on Windows.) — Nathan Osman 1 hour ago

Why that ?

edward torvalds

@hg8 to show kernel is panicking? :p

hg8

@edwardtorvalds I meant, is that a feature ? Is that a coded comportment ?

Rinzwind

@hg8 feature :=)

hg8

10:54

@Rinzwind ok thanks :)

edward torvalds

@hg8 if something helps == feature; if it gives problem == bug :D

Byte Commander

@hg8 If I hit ScrollLock or CapsLock twice fast in a row, it starts blinking as well... o.O

hg8

@ByteCommander Really ? On external keyboard?

Byte Commander

PS2 keyboard, yep.

Abhishek Bhatia

abhishek:~$ ln -sf /home/abhishek/Matlab/bin/matlab matlab
abhishek:~$ matlab

matlab: command not found

Why?

Byte Commander

10:58

@AbhishekBhatia ./matlab

Abhishek Bhatia

abhishek:~/Matlab/bin$ ln -sf /home/abhishek/Matlab/bin./matlab matlab?

Byte Commander

If you want to run an executable in the current directory, you need to explicitly add the relative path (. = current directory).

@AbhishekBhatia No, you run it with "./matlab" if that file exists in the current directory.

Abhishek Bhatia

yeah that works

I am trying to create a symbolic link.

Byte Commander

So what's the problem?

Abhishek Bhatia

matlab: command not found

Byte Commander

11:05

@AbhishekBhatia Yes, because you can only run commands without specifying the absolute or relative path to them if they're located in a directory which is part of the $PATH environment variable. That contains e.g /bin, /usr/bin and /usr/local/bin. Also /home/yourusername/bin, if that exists.

If you want to run matlab as command without a path, you need to create a directory ~/bin and place the link in there. Restart the terminal window after that, then it should work.

Abhishek Bhatia

abhishek:~/bin$ ln -sf /home/abhishek/Matlab/bin/matlab matlab
abhishek:~/bin$ pwd
/home/abhishek/bin
abhishek:~/bin$ matlab
matlab: command not found

Check above please.

I added this to my ~/.bashrc export PATH="/home/abhishek/Matlab/bin:$PATH"

this shows me command not found

@ByteCommander any pointers/

Byte Commander

@AbhishekBhatia Show output of grep PATH ~/.profile and remove that line from .bashrc again, it's the wrong place.

Ravan

11:22

@Zacharee1 Hello :) Now I am

Nathan Osman

Alright. I better head for bed.

Night all.

Byte Commander

Good night Nathan!

Abhishek Bhatia

abhishek:~/Downloads/Themes$ grep PATH ~/.profile
# set PATH so it includes user's private bin if it exists
PATH="$HOME/bin:$PATH"

Byte Commander

@AbhishekBhatia Okay, then the ~/bin path is already automatically added if it exists.

Restart the terminal window.

or run source ~/.profile

Abhishek Bhatia

Nothing happens

Byte Commander

11:30

After that, it should work. If not, give the output of ls -l ~/bin/matlab

Abhishek Bhatia

abhishek:~/bin$ ls -l ~/bin/matlab
lrwxrwxrwx 1 abhishek abhsihek 32 Nov 20 16:40 /home/abhishek/bin/matlab -> /home/abhishek/Matlab/bin/matlab

hbdgaf

If linking it didn't work, and it's around, just sudo updatedb && locate matlab... then fix the darn link

Byte Commander

Sorry, my fault. I misread it...

Abhishek Bhatia

@hbdgaf how to fix?

Byte Commander

@AbhishekBhatia output of which matlab please?

hbdgaf

11:33

If it doesn't run, which won't fix it... that's why locate

Byte Commander

No, not fix it. but show whether the shell recognized that it should try to execute ~/bin/matlab

hbdgaf

I tend to get ugly with problems like this and cd to some wineprefix, export some variables, and then execute relative... but that's simple. Maybe too simple. It works though.

Same thing really. Go somewhere portable and execute locally. Make it a script instead of a link. Either way, I need a nap.

Abhishek Bhatia

abhishek:~/bin$ ~/bin/matlab
bash: /home/abhishek/bin/matlab: Too many levels of symbolic links

i am confused :P

A.B.

11:49

@ByteCommander great answer askubuntu.com/a/700384/367165, but ppa-purge is a better way to remove a PPA. :)

Byte Commander

12:02

@A.B. More problems with that one... :P

A.B.

@ByteCommander More problems? What do you mean?

Byte Commander

@A.B. OP says same error persists. And he has both precise and trusty repos enabled on 14.04 strangely.

A.B.

@ByteCommander The repos are not the problem. But without ppa-purge he has to downgrade the packages manually: sudo apt-get install vlc-nox=2.1.2-2build2 vlc-plugin-notify=2.1.2-2build2 vlc-plugin-pulse=2.1.2-2build2

Byte Commander

Yes, you're right. And apt-get clean to get rid of the cached ones.

A.B.

Not necessary but a good idea.

and sudo sed -i '/precise/d' /etc/apt/sources.list to delete the Precise repos

Ravan

12:21

@A.B Helo :)

A.B.

12:31

@Ravan \o =)

But NOW it's official

2

@ByteCommander you should also check the output of command -v vlc

Byte Commander

Some components of it seem to be 2.1.6, some 2.1.2

You need to downgrade the VLC package as well, it seems: sudo apt-get install vlc=2.1.2-2build2. After that it really should work. — Byte Commander 1 min ago

A.B.

@ByteCommander dpkg -l 'vlc*'

I watch only. @ByteCommander

Byte Commander

@A.B. Sigh... I usually don't like to install extra tools, but next time I will definitely go for ppa-purge. :P

A.B.

=)

Ravan

@A.B. LEGEND

Only one

A.B.

12:44

:D

Ravan

Very nice

Only one LEGEND @A.B

Only one Reversal @Fabby ;P

A.B.

@ByteCommander vlc-nox

% apt-file search --regex /vlc$
vlc: /usr/lib/mime/packages/vlc
vlc: /usr/share/bug/vlc
vlc: /usr/share/doc/vlc
vlc: /usr/share/lintian/overrides/vlc
vlc: /usr/share/menu/vlc
vlc-nox: /usr/bin/vlc

reinstall vlc-nox

Byte Commander

Sigh...

A.B.

@ByteCommander to be sure, dpkg -L vlc-nox | grep bin

Ubuntu Questions on U&L

0

Q: How to implement progress bar as Application Indicator?

does unity-panel support panel applets, similar to DBus-based panel applets of gnome and mate? I know about ApplicationIndicators specification, but they are associated with square icons for me. Is it possible to insert long progress bar between main menu and status area?

Stefano Palazzo

12:54

@A.B. very nice!

A.B.

@StefanoPalazzo =)

Rinzwind

askubuntu.com/questions/700400/remove-grub2-dual-boot dupe with askubuntu.com/questions/429610/…

blade19899

I want this, like right now.

> "Unity 8 is coming to the Ubuntu desktop flavor, but there is still a lot of uncertainty in the community about when it will actually happen, not to mention that there are quite a few users who don't really understand what it is all about. We hope that this article will help clear some misunderstandings." - Phoronix, Unity 8 for Ubuntu Desktop Explained - What You Need to Know

Doing sudo apt-get install unity8-desktop-session-mir on my Virtual 16.04.

Pretty sure that phone is The Meizu MX4 Ubuntu Edition. To bad they don't sell that anymore ;(

user136984

13:22

@Serg: A bear? Where...? :D

Journeyman Geek

user136984

@JourneymanGeek: A waving bear...? :D

Journeyman Geek

Better than one gnawing on your leg.

A.B.

@ByteCommander well done :) askubuntu.com/a/700384/367165

user136984

@JourneymanGeek: No, you're mistaken, that's more likely to be a boghog! ;P

user136984

13:29

8

Q: How to deal with a friendly Boghog without hurting it, and maintaining a postive relationship

In the Hickhiker’s Guide to the Galaxy: Mostly Harmless, on the planet NowWhat there are the Boghogs, and their way of communicating is to bite each other very hard on the thigh, so my question is, if I were to ever encounter one and I wanted to have some sort of friendship with it without either...

fauna

Byte Commander

@A.B. Yeah, I think after watching you perform your apt-magic often enough, I'm slowly getting how to do it myself! :D

Rinzwind

-3

Q: Problem with deb file. what is deb file?

I have a Simple question, i'm new to the linux world. I was looking in the web for some explanations But I have not found a good explanation. What is deb file? What is RPM file? Thanks :)

deb

nuke it! :=)

terdon

@A.B. Yay! Well done!

A.B.

@terdon Thanks =)

@ByteCommander that's no magic =)

David Foerster

@JourneymanGeek Ursus arctos arctos?

Byte Commander

13:40

@A.B. Oh, to many people it is! :D

Journeyman Geek

I have no idea. I bearly can tell the difference between them.

David Foerster

@JourneymanGeek I see what you did there.^^

user136984

When I restart qTox my avatar goes back to the default, and I only see the default avatars for my contacts... What's this about? And why can't I see my chat history even though I have it enabled in the settings?

Ravan

.. for parent directory

. for?

Fabby

@A.B. Congrats!

Ubuntu Questions on U&L

13:54

-1

Q: capture FTP traffic for both active and passive FTP sessions

I want to capture FTP traffic for both active and passive FTP sessions, and I read that I can use TCPdump command. can you help me plz...

linux ubuntu networking arch-linux ftp

user136984

@Fabby: Do you use qTox?

Fabby

@ParanoidPanda yes.

user136984

Do you know if it has any sort of log?

Fabby

there is a technical log

for crashes and stuff...

user136984

Do you know where it is?

Fabby

13:58

@ParanoidPanda yes, off course! I needed that to file a bug!

user136984

Could you tell me where it is? Because I am also filing a bug and they are asking for it...

user136984

:)

Byte Commander

@Ravan current directory.

Fabby

@ParanoidPanda where have you looked already?

David Foerster

What should I do about a question with a bounty, that I consider to be off topic? (askubuntu.com/questions/699442/…)

Byte Commander

14:00

@Fabby Is it ~/.config/tox/qtox.log

Fabby

@DavidFoerster questions with bounties cannot be closed, so:

Noting, unfortunately...

David Foerster

same here: askubuntu.com/questions/630116/…

Fabby

@ByteCommander I know, but @ParanoidPanda hasn't even looked...

user136984

Oh! I didn't see it there! :D @ByteCommander Thanks! :)

Byte Commander

Well, that's obvious, right?

Rinzwind

14:02

@DavidFoerster Flag it

Fabby

@ByteCommander That's why I wasn't replying: to force him to look ther ehimself.

David Foerster

@Rinzwind I can't for the same reason.

Byte Commander

Ah, darn. I'm just too nice for this world! ;-)

Rinzwind

hmm

we need a mod @DavidFoerster Now where are they :P

jokerdino

Need help?

Rinzwind

14:07

see 25563400 @jokerdino :=)

jokerdino

Post it on meta.

Rinzwind

@DavidFoerster you should ask about it on meta >:)

I have from a very reliable source :=)

David Foerster

@jokerdino What exactly should be the theme of the question be?

jokerdino

Are we sure its a bug report though?

Rinzwind

the 1st one is. it is a program error from what I can see

this askubuntu.com/questions/699442/… @jokerdino

jokerdino

14:09

Yeah, I am on the question.

David Foerster

@jokerdino It's an issue with the build system of a third-party software. The other is a Wine bug.

cl-netbox

Hello everybody ! :)

Rinzwind

Hello one ! :)

David Foerster

Hiho

jokerdino

if another mod agrees with this, the bounty can be refunded and closed after that.

Rinzwind

14:11

@jokerdino ahum All bounties are paid for up front and non-refundable under any circumstances. :=) I do not see an exception there

Byte Commander

O.O

David Foerster

@jokerdino Should I still post on meta? I'm thinking of something like "What should I do, if I believe, that a question with an open bounty is off topic?"

Byte Commander

That's possible?

jokerdino

@DavidFoerster Make it specific to this question.

@Rinzwind We can make exceptions.

Byte Commander

@Rinzwind Looks like mods are beyond any laws! ;-)

Rinzwind

14:12

@ByteCommander I only accept Oli and Fossy on that. The others have less rep than me so why would I trust them >:-D

jokerdino

If you want to be mean, we can wait until the bounty is over and then close it later.

Rinzwind

lol

Byte Commander

:D

Ravan

@ByteCommander thanks :D

I forgot the name ;P

jrg

What do we need another mod for?

(@jokerdino?)

jokerdino

14:23

For confirmation.

(@jrg^)

jrg

Confirmation for... what exactly? (Sorry, i'm reading the scrollback and not seeing it)

jokerdino

There is a bountied question that @DavidFoerster says is offtopic. What is the best course of action?

This one.

David Foerster

@jrg I believe askubuntu.com/questions/630116/… and askubuntu.com/questions/699442/… are off topic. It's an issue with the build system of a third-party software. The other is a Wine bug.

jrg

> It worked on 15.04 so I know it is functional I am just not versed enough to deal with different kernels and gcc to fix it myself

I'd say that's a bug.

Rinzwind

@jrg BUT we can NOT close or flag it cuz it has a bounty

David Foerster

14:28

@jrg And I agree. Hence my intent to VTC it.

jrg

I'm affirming the refund and close action.

I see no point in wasting imaginary internet points on a bug report.

2

Rinzwind

0

Q: Which version of ubuntu works with acerc aspire on zg5 a105a?

I purchased a used acer aspire one zg5 a105a from a friend but they put a passed word on the hdd and can't remember the password. I want to install the right version for my laptop/ netbook. The acer does not have a disk drive and all I have is the sd card on my phone. I need help...

system-installation

weiiiiiiiiiiiiiiiiird :X title and body are not even CLOSE

cl-netbox

@DavidFoerster please have a look at this thing - your comment on the question points to legacy BIOS answers - my answer is here : askubuntu.com/questions/700400/removing-grub2-from-dual-boot/… can you please recheck - thank you :)

David Foerster

@cl-netbox Done and tagged for "uefi".

cl-netbox

@DavidFoerster Thank you - so I was right - just asking because it was not meant to be criticism ? :)

David Foerster

14:45

@cl-netbox: It was criticism, but criticism is fine as long as it's substantiated and better yet constructive. I agree with your assessment of the situation.

cl-netbox

@DavidFoerster Thank you ! Was it okay to answer the question ?

David Foerster

@cl-netbox Sure. As long as you believe that the question is not a duplicate, you should answer directly to the question.

user136984

Is there a downside when using user agent spoofing in the browser?

cl-netbox

@DavidFoerster Yes I was sure - did you like the intro ? :)

David Foerster

@cl-netbox It's fine. I don't see anything in particular about it, that warrants a comment.

edward torvalds

14:56

has anyone created UEFI partition not during installation?

Ask Ubuntu Meta

0

Q: Why do I not lose reputation when downvoting a question?

I understand why you lose reputation when downvoting an answer, but why not the same when you downvote a question? What is the thinking behind this?

discussion support downvoting questions

edward torvalds

15:08

@ParanoidPanda are you paranoid some1 is down voting your questions? :P

Ubuntu Questions on U&L

0

Q: Expanding Linux Partition

I am running ubuntu 14 on my laptop, the laptop is normally windows 8 but it is dual booted with ubuntu. My ubuntu partition is 50gb and I know that I have 500gb free space which is wasted on my windows partition. I was wondering if anyone has experience or has found a good article explaining thi...

ubuntu dual-boot hard-disk

cl-netbox

Congrats for being a LEGENDARY man @A.B. ! :)

A.B.

@Fabby @cl-netbox =) Thanks

Chat? Bin da =)

user136984

Saladin

hello guys:)

user136984

15:23

\o

Saladin

can input redirection work for cmd 'mkdir'?

like mkdir 0<m.txt

user136984

I would think so.

Saladin

where m.txt contains name of file

mkdir: missing operand
Try 'mkdir --help' for more information.

user136984

Give it a go and you will see. :)

Saladin

I did..

user136984

15:24

Ah, maybe you should read the manpage first.

user136984

I think there is a special option for this.

Saladin

wait let me man and come back.

edward torvalds

did anybody created a UEFI partition manually?

Rinzwind

@edwardtorvalds me! and I removed it almost immediately and let some software make it :=)

edward torvalds

@Rinzwind I am going to install second linux OS, so if installation goes wrong I may need to install uefi again myself (this have happened to me before), did you answer the method to any question?

because if EFI partition is missing or corrupt due to some reason, my current ubuntu will be useless :-/

Rinzwind

15:36

@edwardtorvalds ehm no it is not :=) My system lets me create those in BIOS. And when I recreate a removed one I still have my OS (?)

edward torvalds

@Rinzwind last time my efi got corrupt because installation didnt complete, so I could not boot to ubuntu

@Rinzwind will restoring .img file of uefi partition work?

kos

VTC -> askubuntu.com/questions/700463/…

edward torvalds

close it?

C questions are not allowed after all @kos :-)

A.B.

What is this firewall-cmd --permanent --zone=public --add-service=http >:)

kos

@edwardtorvalds Yes, but I can't vote to delete it until 3 days ;)

edward torvalds

15:48

@kos 3 days? whats the thing with 3 days?

Zacharee1

@kos What is the question even? It doesn't make sense

kos

@edwardtorvalds Sorry, 2 days. 10K+ users can vote to delete questions after they've been closed for 2 days. (20K+ users immediately after they're closed as long as they score -3)

edward torvalds

oh, I see

kos

@Zacharee1 No idea, I don't even downvote off-topic questions unless they're a rant (it wastes my rep)

edward torvalds

@kos kos stands for? or it is like that?

kos

15:55

@edwardtorvalds It is like that. I picked three random characters on my keyboard. ;)

edward torvalds

hehe

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