Ask Ubuntu General Room

Venki

7:00 AM

GRUB2 wont be installed if I install Ubuntu alone in my PC?

Avinash Raj

Another one askubuntu.com/questions/460957/…

Venki

4 mins ago, by Venki

GRUB2 wont be installed if I install Ubuntu alone in my PC?

Avinash Raj

EFI disk?

Venki

Hmmmm... yes i suppose..

In boot menu it shows an option named "UEFI"..

Avinash Raj

sudo grub-install /dev/sda

won't work.

Venki

7:07 AM

lemme try..

tried and it showed...

Installing for x86_64-efi platform.
Installation finished. No error reported.

...just that.. nothing else..

Avinash Raj

Oh.

Venki

Now I dont (yet) have a backup device and i dont want to mess with my PC.. any idea how to delete whatever I installed? :-0

(I must seriously try to learn some typewriting!)

@AvinashRaj

Avinash Raj

@Venki Why?

Venki

Uhh.. GRUB wont mess my system right?

Avinash Raj

don't play with grub.

Venki

7:14 AM

So how to remove it???????

I ran the command you told to and it showed the output ^ meaning its installed.. so now can I delete it?

Avinash Raj

it's not possible. If you mess with the boot then i 'll help you.

Venki

right.. hope the GRUB i installed wont mess my PC!! Will reboot it now..

Ha!! PC is fine!

BTW how can I find out if i have USB 2.0 port or USB 3.0 port?

@AvinashRaj

Rinzwind

@Venki usb3.0 have a blue color if you look at the port itself

Venki

@Rinzwind Hi!! No blue colour i my port! Any command to CONFIRM I have USB 2.0? Thinking of buying an external HDD(for the first time) and so want to know for sure...

Semms there is no 100GB external HDD .. gonna go for 500GB

Takkat

7:34 AM

@Venki you won't have USB3 speed if you plug it into USB2, and you may get power issues (USB2 500 mA vs. USB3 900 mA).

So if the drive is USB3 only it may not get enough power from an USB2 port.

Venki

Well I dont have a USB 3.0 device to connect and check if all that problems occur!!

Takkat

In case the external drive comes with it's own power supply it should work on an USB2 port (but not at USB3 speed, of course).

Does e-SATA still exist?

Mateo

@Takkat sure, that and you allways have the option of a regular drive with a protective plate to cover the electronics and a cord out the side of the computer ;)

I usually buy an enclosure separate from the drive, got one that had e-sata/firewire/usb last time

Takkat

my case came with an internal SATA port attached to a SATA jack in the rear but only a MOLEX power supply.. weird.

Journeyman Geek

oh there should be a molex -> sata converter cable

and the molex gender would be odd.

Takkat

7:43 AM

ah Firewire, that caauses nostalgic feelings.

Journeyman Geek

my case supports it, my motherboard dosen't ;p

Mateo

mmm, all warm and fuzzy

Takkat

<-- still has a DAT video camera with Firewire

Mateo

I remember some e-sata "cards" just routed a regular sata to the back... and the nice e-sata cables didn't work with it.

Journeyman Geek

@VenkiL USB 3.0 will work in 2,0. USB 3.0 type A connectors are always blue and have a second set of shorter connecters deeper

@Mateo: thats a confusing thing

I have a e-sata bracket, which has a pair of e-sata outs, a single molex connector, and 2 cables - one of which is e-sata -> sata and the other is sata to molex

Takkat

7:46 AM

<-- hates it when all those cable-connector-adapters are outside of a box

Journeyman Geek

lol

I dug out that bracket... 8 years on

after I found those cables and wondered what the heck they were

Venki

Well. let us make this simple.. IS THERE ANY COMMAND TO FIND WHICH USB PORT I HAVE?

Forget about HDDs

just which usb port I have...

@ Anyoneoutthere

Takkat

8

Q: How do I find out whether my system has usb 3 ports?

I want to buy an external usb 3.0 drive and I wonder how to figure out whether my laptop has such a port (or only 2.0). Neither lsusb -v, nor /proc/bus/input/devices offers any obvious hints, although the former says a lot of 2.0 root hub which might imply v2 and not v3. Right?

usb

Venki

@Takkat Thanks you! I only have 2.0

Now to do some e-shopping...

Takkat

8:03 AM

E-shopping is fun... everytime my chart is full I'll have to leave the shop before I click on buy.

Venki

:-p BTW 500GB external HDDs are costly all above 3000(INR) ..

HA! It sucks! giving up on the HDD..

Rinzwind

@Takkat alternate.nl has a dekstop configurator you can play with

Venki

Well gotta leave it seems! Ciao!

Takkat

8:20 AM

@Rinzwind configuring is more fun than actually having to pay the money for it.

Rinzwind

just saying: if you want to waste your time there is a website to do it ;-)

Ahum! Does Oli admit he is created from a dead corpse and a male hugging?

Takkat

:) configuring a new box is like browsing a fashion magazine... no waste of time!

difference is that in my house the mailman often brings new fashion but only rarely new hardware.

3 pairs of jeans = 1 new desktop - I could run my own server farm by now.

Rinzwind

send the fashion back when you see it :+

Takkat

8:45 AM

yeah: "Sorry, I did not order that" ;)

Rinzwind

is this flaggable as copy/pasted? askubuntu.com/a/460942/15811

do take special attention to 1) in that answer >:)

Avinash Raj

9:02 AM

wohoo

Rinzwind

"howoo" back at ya!

terdon

Man what is it with Ubuntu users and sudo su?

Rinzwind

@terdon you noticed that too :-P

terdon

And "launching" defined as creating a symlink...

Rinzwind

did you also notice the influx in "ubuntu deleted my windows during install' topics? >:)

probably all win XP users :=D

(regarding the 1st line: it should say "I" deleted ... ;-)

int_ua

9:08 AM

Any moderators online?

Rinzwind

nope

takkat is not AU so he don't count >:-D

int_ua

ok, I'll wait. What is AU?

AskUbuntu?

Rinzwind

yes

Dan

Is this comment rude? (I think I really need to learn how to express myself gently in English)

askubuntu.com/q/460991/#comment607076_460991

Avinash Raj

yep.

int_ua

9:09 AM

thanks

Rinzwind

@Dan nope >:D

flagged that answer myself as not an answer

Avinash Raj

future mods are here now only.

Rinzwind

@AvinashRaj who? :=) not me that's for sure >:D

Avinash Raj

add me also.

i want to change my avatar.please give some suggestions.

you expect my avatar would be ____________

Fill in the blank ^^^^^^

terdon

@int_ua What do you need? We might be able to help.

Thanks for your answer and the effort you put into it but you are seriously complicating things. i) Your step 1 is completely unneeded, we can assume the OS is already installed ii) What's the point of extracting to /tmp if you move it to /opt? Just extract to /opt. iii) Please don't use sudo su, that kills little fluffy seals. Just use sudo, that's what it's for! iv) How is creating a symlink in step 6 "launching" the program? v) Why in the world would you run it as bash sqldeveloper $*? You don't need bash and you do need to quote "$*" or, better, to use "$@" instead. — terdon 6 secs ago

Rinzwind

9:24 AM

Far too much effort Terdon :-)

terdon

9:35 AM

@Rinzwind Well, the guy did put some effort into the answer. May as well point out the problems.

Rinzwind

no he copy/pasted that with no source reference :=)

terdon

@Rinzwind From where?

Rinzwind

@int_ua and one just arrived

terdon

They're such bad instructions I assumed he did it himself.

Rinzwind

could be could be :-) but the 1st one (install ubuntu) got me ticked already >:)

Oli edited it :=D

Oli

9:43 AM

@terdon The bash sqldeveloper is there so it called the local sqldeveloper rather than recursing but I've replaced that too now.

terdon

@Oli Ah! I see, OK, I hadn't realized that, I thought that bash foo would still search the path first but of course, that would only be the case for bash -c. Thanks for the clarification.

Great edit by the way!

Avinash Raj

how to use sudo inside a script.

Dan

when possible, I don't recommend you use sudo in the script. Instead execute your script with sudo

terdon

^^^

23

Q: Should scripts that require sudo fail if they don't have it, or use sudo and prompt?

I have a script which gives me fine-grained control over my backlight brightness and requires sudo to run. It's essentially this: backlight="/sys/class/backlight/acpi_video0/brightness" echo $1 | tee $backlight and lives at ~/bin/backlight-adjust. The script needs sudo privileges, because tee ...

bash shell-script sudo

Rinzwind

@AvinashRaj dont

Avinash Raj

9:54 AM

Ontopic? askubuntu.com/questions/461010/…

And thanks for notifying me.

terdon

@AvinashRaj No, completely off topic.

Avinash Raj

questions about the codes which are intended to create Ubuntu apps are considered as ontopic.

How nano . command list the files preceeded by dot?

linky askubuntu.com/questions/461018/…

terdon

@AvinashRaj We have no idea what that code is supposed to be doing and it is in no way Ubuntu specific. He's asking how to create a JSON object.

Rinzwind

I agree with terdon :)

Avinash Raj

hmm

Rinzwind

10:05 AM

and way too basic >:D

xiaodongjie

0

A: Recover the files from ubuntu

I want to help you, But I can't touch your computer directly. First, I strong recommend you recheck your files. So I suggest that you install and use that recovery programs as following way. I think that if you know about deleted file's magic, It's best software for you that use magicrescue(...

let's help him.

Rinzwind

When do people ever going to realize you need to backup before messing with partitions and re-installing? :-P

Pandya

@terdon : I am running script as root because script has some commands which should be run as a root and my last line is "gnome-session-quit" which is not running as root. So, I am finding solution to run it as root.

Avinash Raj

i never ever face this type of messing with partitions problem.

xiaodongjie

@Pandya hi

Takkat

10:13 AM

@Rinzwind they will know forever after they had lost all their data.

@xiaodongjie what, if the first install was Wubi?

Rinzwind

@xiaodongjie I doubt it will be possible. it is a wubi install... that data is gone forever

terdon

@Pandya OK it's just strange since gnome-session-quit requires input from the user. Anyway, can't you run the script with sudo instead? I mean, sudo script and then, inside the script, add another sudo: sudo -E -u pandya gnome-session-quit?

Rinzwind

@Pandya if you want that you should make the whole script root and put it in /usr/sbin/ or /sbin.

terdon

@AvinashRaj By hitting <TAB> and not <ENter>

xiaodongjie

@Rinzwind oh, I think that he knows about that files' magic, however recovering is possible.

terdon

10:16 AM

@xiaodongjie Not sure. If that was a wubi install, the tools you suggest will fail since they expect an ext partition.

xiaodongjie

via use magicrescue.

terdon

@Pandya can we see the entire script?

xiaodongjie

@terdon oh, can you tell me so about magicrescue?

Avinash Raj

@Pandya are you a sourashtrian?

terdon

@xiaodongjie Nope. sorry. Don't really know about it.

xiaodongjie

10:17 AM

undelete mode is so different.

It's not related with file system structure.

terdon

@AvinashRaj never suggest sudo cp for a file in $HOME! Your suggestion would have broken the OPS system since it would result in a .profile owned by root!

Man, what is it with you Ubuntu people and sudo? :P

Avinash Raj

hmm

terdon

Hmm, maybe not broken but certainly caused issues.

Pandya

@terdon : I added command like dpkg,apt that should be run as root, I tried "sudo -E -u pandya gnome-session-quit" in that script but it not working and giving same error.

Takkat

cp -a preserves permission.

terdon

10:20 AM

@Takkat True but why would that be needed?

Takkat

because of sudo taking ownership otherwise... ;)

terdon

@Pandya Hmm. Tell me something, why do you need to log out after the script is finished anyway?

@Takkat Well, yeah, but that problem only exists if you decide to use sudo in the first place!

Takkat

yeah sure... I don't know the context. Sometimes I have to copy other people's stuff.

terdon

@Takkat sudo cp /etc/skel/.profile ~/

context ^^

Takkat

kk no sudo there...

terdon

10:24 AM

:)

@Pandya got it. Try this:

#!/bin/bash

apt-get install nedit
sudo -E -u terdon gnome-session-quit

Then, run the script like this:

sudo -E script.sh

@Pandya updated my answer. Let me know if that works.

Pandya

@terdon : Ok. I will try and will accept your answer. Currently, I am leaving chat-room.

terdon

OK

Rinzwind

10:39 AM

lunchtime :-)

Avinash Raj

happy lunch :-)

here, tea time :-)

Venki

Any knowledge about mobile phone problems ?

Avinash Raj

what?

mobile

android?

Venki

Nope! Android is Too costly for me!!

Nokia Asha..

Nope! Android is Too costly for me!!

Avinash Raj

U can get android phones in cheaper rates.

Venki

10:49 AM

Maybe but i have an issue with Nokia Asha.. The audio goes out completely after using an application.. I mean any application for sometime....

Avinash Raj

close askubuntu.com/questions/461041/…

Venki

Gave it to a service centre... I think it might be a s/w issue...

told the guy to try flasing my OS..in the phone..

Avinash Raj

is that trusty security and trusty proposed are considered as repositories?

Venki

packages.ubuntu.com/trusty/allpackages

Try checking here?

Ignore ^

Ok Ciao for now! ;-)

Rinzwind

11:09 AM

this could be an new form of spam:

0

Q: I have created a website name kinindia. But from last night i couldn't able to access my website. Can anyone please solve my query?

Last night i tried to open my website but it showed an error that 404 page not found. Can anyone please help me to find out the error that has shown in my website. This is my website http://www.kinindia.com/10th-result-2013.php

education

Avinash Raj

Yep.i think so.

int_ua

11:48 AM

@terdon ping

terdon

@int_ua you called?

int_ua

yeah. I have some uncomfortable questions

terdon

ummmm. OK.

Like?

int_ua

I'm frustrated by marking a wrong question a duplicate just to earn more point to one's own answer as I see it

Check the situation here askubuntu.com/questions/449103/…

terdon

@int_ua That seems like perfectly reasonable behavior.

Your question is indeed a duplicate of the older one. Also note that Braiam only initiated the close, he was not the only user to do so. Plus, his is not the accepted answer of the dupe so he's unlikely to get any rep for it.

Do you feel your question is not a duplicate @int_ua?

int_ua

11:56 AM

My question was created 12 days before the other one, how exactly is that a duplicate? What am I missing?

Apr 17th vs Apr 29th, how is that older?

terdon

@int_ua Ah, good point. Hang on a sec.

OK, yes, your answer is older. I guess the people who voted to close just didn't realize. They just stumbled upon your question after having already seen the other one.

I wouldn't take it personally though, I really doubt it was done maliciously.

Rinzwind

vote to reopen and tag the other one to close?

terdon

If you feel strongly about it, you can post a question on Ask Ubuntu Meta, suggesting that the situation be reversed.

Rinzwind

or PM Mitch ;=)

int_ua

ok, thanks.

Rinzwind

12:01 PM

@mitch askubuntu.com/questions/449103/… is closed as a dupe of askubuntu.com/questions/457825/… but the last one is newer than the 1st one plus is has better answers, would it be better to reverse that and close the other as duplicate of the 1st one (or merge them)?

and done @int_ua

int_ua

thanks

Rinzwind

@terdon no need. just nag the moderator that closed it >:-D

int_ua

it's still sad that we had to go through that conlict...

Rinzwind

SEE!!!!!!!!!!!

took only seconds _o-

Mitch

@Rinzwind Done

Rinzwind

12:04 PM

hehehehehehehehe

Mitch

lol

terdon

@int_ua Seriously, no conflict here. It was an honest mistake.

int_ua

ok, leaving now, thanks a lot

xiaodongjie

\o/

Rinzwind

\o

@xiaodongjie why are you being taken hostage?

Mitch

12:04 PM

What do you guys think of copy.com?

Rinzwind

@Mitch it is better than skydrive ;-) I like copy.com but at work we went with googledrive

xiaodongjie

hmm? @Rinzwind what?

hostage?

me?

Mitch

@Rinzwind Anything is better than skydrive!!!!

Rinzwind

@xiaodongjie yes \o/ <- both hands in the air (like someone is holding a gun at you)

\o and o/ is waving >:D

xiaodongjie

@Rinzwind oh, I see, again, \o

Rinzwind

12:06 PM

lol

wave ->
-o- \o -o- o/ -o- \o -o- o/ -o- \o -o- o/ -o- \o -o- o/

or morning exercise :=D

terdon

@Mitch I didn't know about it. Just read their webpage and it looks great. If it lives up to its promises.

Rinzwind

for one it is cheap :D

hunter

hey guys

Mitch

I just have don't like MS.

hunter

I have quite simple problem for ubuntu users

xiaodongjie

12:10 PM

hey she!

hunter

askubuntu.com/questions/460723/ubuntu-14-04-startup-difficulty

@hunter hey you

@hunter hey girl.

@xiaodongjie what?

lol

12:12 PM

guys doesnt mean boys lol":)))

ahahahah

xiaodongjie

@hunter oh, hahaha!

hunter

guys like hey friends or mates

Rinzwind

@hunter do you know how to start it from command line

hunter

yes I know

Rinzwind

so add that command to start up applications ;-)

hunter

12:13 PM

I added, none sense. it doesn't launch

Rinzwind

(wait is that a server or a desktiop?)

hunter

it's desktop

terdon

@hunter we have no idea what exactly you're trying to do.

Rinzwind

their site has not a lot to go on :P

terdon

What are the contents of the file you downloaded? How would you launch it from the command line manually?

hunter

12:16 PM

@terdon yes I see. one of your members gets guys as boys. and you don't understand question in english

Okay thx

terdon

@hunter Back down boy!

Rinzwind

lol

terdon

I'm trying to help here but I don't know what command you're trying to run.

hunter

@terdon look at question askubuntu.com/questions/460723/ubuntu-14-04-startup-difficulty

terdon

Also, guys does mean boys if you want to be pedantic about it. So does mates.

@hunter I have. What command do you use to launch it manually?

hunter

12:18 PM

' guys' basically means everyone, it's regardless of gender fyi

okay, what I did is

I created .sh script

and added followings

cd /path/to/enclosing/folder

java -jar jdownloader.jar

added to update-rc defaults and enabled

Rinzwind

did you make it executable? :)

hunter

and added this script to init.d folder

terdon

Huh? What's jdownloader.jar? I thought you were trying to run Universal Media Server.

hunter

yes

same thing for ums.jar

I did

terdon

And is this a GUI app?

hunter

12:21 PM

yes

Rinzwind

I would include it to startup though and not in init.d

terdon

There's your problem. It won't work with update-rc 'cause you need a running X server for it.

hunter

what command to startup

my distro is desktop

Rinzwind

in dash type "start" and it will be the 1st one

hunter

x server already running I think

what command to add there I mean

terdon

12:22 PM

java -jar /path/to/enclosing/folder/ums.jar

Rinzwind

^^

terdon

Assuming the above launches it correctly when run from a terminal.

Rinzwind

might need " " though

hunter

did it, as answer. nothing launches on startup

Rinzwind

probably safer: java -jar "/path/to/enclosing/folder/ums.jar"

hunter

12:23 PM

okay I'll give it a try

thank you. I'll let you know

terdon

@hunter What happens if you open a terminal and run that command?

Does it work?

hunter

yes it works but, command launches gui and runs in commandline too.

I can see lines appearing in terminal

I mean, when I do ctrl+c

app quites

terdon

Yes of course. That's normal. Can you show the exact command, including the actual path?

Anyway, adding java -jar "/path/to/enclosing/folder/ums.jar" to the startup apps should work. If it doesn't, you might need to add a sleep directive to make it wait until everything is settled down before launching.

Rinzwind

there is a ums.sh in the tar.gz

update.rc is wrong anyways: the installer notes:
4) Run (note: UMS should NOT be run as root):

cd ums-<version>
./UMS.sh

so the startup probably needs to be
./dir/to/UMS.sh

terdon

Yeah, I'm downloading it now. @hunter next time, please include a link to where you found whatever program you're asking about and also show the exact command you use to launch it. In this case, an ls -l of the extracted archive would also have been useful.

Rinzwind

12:34 PM

:=)

oops that showed more than intended

terdon

damn, missed that

Rinzwind

1 sec

ls
CHANGELOG.txt DummyInput.ass LICENSE.txt logback.headless.xml plugins renderers ums.jar VirtualFolders.conf
documentation INSTALL.txt linux logback.xml README.txt UMS.conf UMS.sh WEB.conf

terdon

OK, should work fine if @hunter adds the sh to the startup apps. Just don't include the . from Rinzwind's suggestion, that was a typo:

/dir/to/UMS.sh

xiaodongjie

0

Q: Start-up error (ALERT! /dev/disk/by-uuid/xxxxxxxxx does not exist. Dropping to a shell! )

I got serius problem with ubuntu 14.04 please help me. When i start my computer its says following errors: — Boot args (cat /proc/cmdline) — Check rootdelay= (did the system wait long enough?) — Check root= (did the system wait for the right device?) — Missing modules (cat /proc/modules; ls /...

boot grub2

what's the reason?

I think that the partition's uuid was modified.

Rinzwind

@xiaodongjie fstab probably has the wrong UUIDfor a disc

xiaodongjie

12:40 PM

oh, To boot successfully, as kernel parameter, root=/dev/sdaX? It's right?

Rinzwind

here is all you need ubuntuforums.org/showthread.php?t=2017580 for that

"sudo blkid" is needed

and that needs to be checked against fstab

terdon

Et tú @Rinzwind? No sudo needed for blkid :P

Rinzwind

@terdon hey I copied pasted that from the link

terdon

:)

excuses, excuses...

Rinzwind

nope its the sudo truth

Ubuntu Questions on U&L

12:45 PM

0

Q: My Ubuntu 14.04 LTS doesn't have sound

I installed Ubuntu 14.04 on VMware workstation version 10.0.0 on my Windows 7 machine. After installing I figured out that it doesn't have any sound so I checked the sound settings. All items seem to be at their default states and correct. Any suggestion to find the problem?

ubuntu audio vmware

Rinzwind

"Mobile-broadband penetration approaching 32 per cent
Three billion Internet users by end of this year " http://www.itu.int/net/pressoffice/press_releases/2014/23.aspx#.U2eIlFfHxyf

not bad :)

Avinash Raj

ontopic? askubuntu.com/questions/461076/…

terdon

@AvinashRaj Why not? It seems like a basic sed regex question

Avinash Raj

1:01 PM

post the input and expected output on your question. — Avinash Raj 18 secs ago

Avinash Raj

1:20 PM

@terdon where is the input and the expected ouput?

i can't able to understand his question.

terdon

@AvinashRaj Yes, it's not very clear. His input is the 1st, long line of code and the desired output is the 2nd.

Avinash Raj

it's too too big.

how do i print the input with echo command in terminal.

tried echo ' '

and

echo ""

terdon

?

Avinash Raj

but neither of these won't work.

terdon

I just put it into a file

Avinash Raj

1:34 PM

@terdon how about this?

wget -q -O - "serverlink" | sed 's/.*flvurl=$.*$;autoplay=0.*/\1/g'

terdon

@AvinashRaj I don't think that will work. My understanding (very possibly wrong) is that he wants everything up to the 1st & that will get everything up to the second, so 2 separate http:// lines.

Also, that will print any surrounding lines as well. If he is actually getting the HTML from the server and not parsing it as @steeldriver suggested, he will want to print only the lines matching his text.

Avinash Raj

this is the expected output

http://redirector.googlevideo.com/videoplayback?id%3Da87eff0521883521%26itag%3D5%26source%3Dblogger%26app%3Dblogger%26cmo%3Dsensitive_content%253Dyes%26ip%3D0.0.0.0%26ipbits%3D0%26expire%3D1400695090%26sparams%3Did,itag,source,ip,ipbits,expire%26signature%3DAA6B72C5D9C12D461C7A0E3F59B2C208A7CDC82D.AE374E37E58A41191B10F30AA43BE42379DA6D5B%26key%3Dck2&amp;iurl=video.google.com/…

terdon

Yay! Hit 9k :)

@AvinashRaj Not in the OP. He is showing this as the expected output:

http://redirector.googlevideo.com/videoplayback?id%3Da87eff0521883521%26itag%3D5%26source%3Dblogger%26app%3Dblogger%26cmo%3Dsensitive_content%253Dyes%26ip%3D0.0.0.0%26ipbits%3D0%26expire%3D1400695090%26sparams%3Did,itag,source,ip,ipbits,expire%26signature%3DAA6B72C5D9C12D461C7A0E3F59B2C208A7CDC82D.AE374E37E58A41191B10F30AA43BE42379DA6D5B%26key%3Dck2&amp

Rinzwind

spam? askubuntu.com/a/461116/15811

more cuz he is promoting windows products

jrg

Ahem.

Rinzwind

1:47 PM

jrg! dude! hi!

jrg

morning/afternoon all.

Rinzwind

have a cup of tea! it's almost 16:00 here so tea time

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