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1500 questions
106
votes
9 answers

Ubuntu 16.04 hangs on shutdown/restart

My Ubuntu 16.04 hangs on shutdown/restart requiring me to press and hold the power key to turn the machine off... I don't know how to report this as a bug and what commands to run to show the necessary hardware/sys log info? Any help would be hugely…
Tdenham
  • 1,061
106
votes
7 answers

No more updates for Google Chrome 32-bit

I am using Google Chrome 48.0 32-bit. Today when I launched Google Chrome, I got this message: This computer will soon stop receiving Google Chrome updates because this Linux system will no longer be supported I thought Ubuntu 14.04 is supported…
Parto
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106
votes
13 answers

Getting an "Authentication token manipulation" error when trying to change my user password

I am logging in to my Ubuntu Server using my username. Once I am logged in I am typing passwd command. Entering a new password but a second after getting following error messages: passwd: Authentication token manipulation error passwd: password…
Bakhtiyor
  • 12,254
106
votes
5 answers

I cannot find .bash_profile in ubuntu

I can't find .bash_profile in Ubuntu 14.04 in my /home/user directory. I used the ls -a command to see the .bash_profile, but there isn't such a file.
Roledenez
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106
votes
9 answers

Why can't I access a shared folder from within my Virtualbox machine?

I have Ubuntu 14.04 as my host system, and then on Virtualbox, I have Lubuntu 14.04. I am trying to share a folder on my host system so that my guest system can write files to it. I've followed instructions as best I can, installed the Virtualbox…
Questioner
  • 6,839
106
votes
6 answers

Apache: access denied because search permissions are missing

I know this question is asked a lot, but the solutions I saw didn't work for me. I only have one virtual host enabled, and I'm trying to enable access to a folder that's not under the document root ServerAdmin webmaster@localhost DocumentRoot…
Yotam
  • 1,339
106
votes
2 answers

Unable to format USB drive with Disks (udisks-error-quark, 0)

Upon trying to make a startup disk (USB) for Ubuntu 12.04, the system prevented boot loader installation. I'm getting message: Error synchronizing after initial wipe: Timed out waiting for object (udisks-error-quark, 0) Can I still use the startup…
Ramesh Sukumaran
  • 1,061
106
votes
4 answers

How to mount a hard disk as read-only from the terminal

How do you mount a hard disk from the command line as read-only? I don't want or need a link to the man page, I want the exact thing I will have to type in if the following is true: disk to mount is on /dev/sda it is 2 TB -it is critical that I…
wardr
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106
votes
3 answers

What is apparmor?

I hear a lot of talk about apparmor, I want to know the following: What is apparmor? How does apparmor work?
Alvar
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106
votes
5 answers

bc: set number of digits after decimal point

bc handles numbers as integers: # echo "100/3" | bc 33 bc -l handles numbers as floating point objects: # echo "100/3" | bc -l 33.33333333333333333333 Is there a way to limit the number of digits after the decimal point?
Adam Matan
  • 12,519
106
votes
6 answers

How do I remove a folder?

I am a new user and I am trying to remove a specific folder. I am using sudo rm /path/, but it is not working. What is the correct command to use? It is a file catolog I am attempting to remove but I am geting a message that it is empty.
Carl
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106
votes
13 answers

GRUB does not detect Windows

I have finally installed Ubuntu on my second drive. When I start my computer GRUB only offers me to boot Ubuntu, not Windows 7. What needs to be done so that I can choose between Ubuntu and Windows in GRUB? When I press F12 for boot menu at startup…
HyperX
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106
votes
12 answers

How to find and change the screen DPI?

I am trying to find and then change the screen DPI (dots per inch) setting in 12.04 and 12.10. However, I can't seem to find any app or config file that can do this. Is there any app or conf file for this? Note that this is for 12.04+ so the…
Luis Alvarado
  • 211,503
106
votes
12 answers

Adding timestamps to terminal prompts?

I was wondering if it was possible to add timestamps to terminal prompts, and if so, how could I achieve this?
Jan Gorzny
  • 1,163
106
votes
3 answers

Shell does not show typed in commands, "reset" works, but what happened?

My problem is that the Bash shell stops showing the characters I type into it. It does read the commands though. I've come across this problem quite a few times and I don't understand what causes it. I know how to solve it, but I really don't like…
Niels Bom
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