Ubuntu :: Sudo Command Doesn't Work Anymore - No Valid Sudoers Sources Found

Jan 21, 2011

I was changing some file permissions with the chmod 777 command and i accidentally executed:


sudo chmod 777 /*/*/*/*

and now i can't get root access to anything. If I try executing a sudo command i get:

sudo: /etc/sudoers is mode 0777, should be 0440
sudo: no valid sudoers sources found, quitting

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Ubuntu :: Sudo: No Valid Sudoers Sources Found, Quitting

May 31, 2011

When I try to use sudo, I get this error message.


sudo: /etc/sudoers is owned by uid 1000, should be 0
sudo: no valid sudoers sources found, quitting

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OpenSUSE :: Command Doesn´t Work Anymore On 11.4?

May 23, 2011

have You noticed that mt command doesn´t work anymore on 11.4? We try to install new version to hadle robotic library, but someone has written mt command as a new, and it doesn´t accept mt -f command anymore. cpio based mt command it´s not reliable as old one. Can anyone tell where to get old mt command which is compatrible new 11.4 x64 bit version?

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General :: Sudo Command Doesn't Work

Oct 17, 2010

I want to install some software using sudo apt-get command,but it dosen't work.(my network works well) how to handle it? below is the output of terminal:

@ubuntu:~/Downloads$ sudo apt-get install build-essential cdbs fakeroot dh-make debhelper debconf libstdc++6 dkms libqtgui4
Reading package lists... Done
Building dependency tree


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General :: Sudo Cd /root Gives Sudo - Cd - Command Not Found

Jan 6, 2011

Kernel, Slackware 12.0



On the other hand


So, I do not understand why the notification "sudo: cd: command not found", considering cd is a bash built-in command.

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Server :: Sudoers Will Not Work - Error Says Sudu: Can't Open /etc/sudoers: Permission Denied

May 31, 2011

I have tried several things to attempt to fix my sudoers file however it is still coming up with errors. The error says


the sudoers configuration file is set to the default as I have ran a dpkg on it, have also uninstalled and reinstalled it, and went over the configuration file ensuring it looked like the defaults I had seen online.

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Ubuntu :: Sudo Nautilus - Command Not Found

Feb 17, 2010

When trying to open nautilus as root, I get the following message:

xxx@xxx-desktop:~$ sudo nautillus
[sudo] password for xxx:
sudo: nautilus: command not found
xxx@xxx-desktop:~$ sudo nautilus
(nautilus:3917): Eel-CRITICAL **: eel_preferences_get_boolean: assertion 'preferences_is_initialized ()' failed
Initializing nautilus-gdu extension

** (nautilus:3917): WARNING **: No marshaller for signature of signal 'UploadFinished'
** (nautilus:3917): WARNING **: No marshaller for signature of signal 'DownloadFinished'
** (nautilus:3917): WARNING **: No marshaller for signature of signal 'ShareCreateError'
Initializing nautilus-clamscan extension
Fontconfig error: Cannot load default config file
** (nautilus:3917): WARNING **: Could not inhibit power management: The name org.gnome.SessionManager was not provided by any .service files

--- Hash table keys for warning below:
--> xxx
--> root
--> inode/directory
--> l2050
--> l2049
--> staff
--> xxx

(nautilus:3917): Eel-WARNING **: "unique eel_ref_str" hash table still has 7 elements at quit time (keys above)
(nautilus:3917): Eel-WARNING **: "nautilus-directory.c: directories" hash table still has 12 elements at quit time
Shutting down nautilus-gdu extension

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Ubuntu :: Sudo Node Command Not Found?

Feb 25, 2011

I just installed node.js and it is located at /home/apantev/local/node/bin . So I added the follow to my ~/.bashrc

export PATH=/home/apantev/local/node/bin:$PATH
And this works fine if I use node normally for instance
node -v


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Ubuntu :: Sudo: Grub Command Not Found?

Aug 10, 2011

'' Ubuntu 11.04'' I have used G-parted to make some free space for my windows partition '' 100 GB. But before windows is installed the Grub loader is already broken . So i decided to restore the GRUB in the live CD en start with sudo grub and i get this:

sudo grub
sudo: grub: command not found
sudo /sbin/grub
sudo: /sbin/grub: command not found

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Ubuntu :: Sudo: Add-apt-repository: Command Not Found?

May 10, 2011

I'm trying to install java via ssh on my Ubuntu 10.04 LTS server and I keep getting this response

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OpenSUSE :: Sudo: (whatever): Command Not Found?

Jan 17, 2009

I try to run a command located in /sbin or /usr/sbin using sudo, like "sudo ifconfig" or "sudo tail -f /var/log/messages", it comes back with "command not found". If I perform a "sudo -i" and drop to a root shell that way, the commands work fine. My sudoers file is as follows:

Defaults always_set_home
Defaults env_reset


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Debian :: Sudo Command Not Found?

Mar 5, 2010

I've just installed Debian on my old iMac G3. The install seemed to go ok but failed to load to the GUI. Thats ok I'll just enter some lines into the xorg.conf and it will be fine, or so I thought. Now at the shell prompt when I type in any sudo command it says: "sudo command not found" Is there an alternate command I can use in this situation.

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Ubuntu :: Sudo ./postgresplus-8.4.1-2-lixuz-x64.bin Command Not Found

Jul 21, 2010

I am trying to install postgres using the one click installer from [URL]. I downloaded the file into Downloads and ls shows me the file. When I enter the command "sudo ./postgresplus-8.4.1-2-linux-x64.bin", I get "sudo: ./postgresplus-8.4.1-2-linux-x64.bin: command not found". What am I doing wrong?

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Ubuntu Networking :: Sudo: Usb_modeswitch: Command Not Found

Aug 21, 2010

when i type this command

sudo /usr/sbin/initmodem.sh

the output is

sudo: usb_modeswitch: command not found

I am trying to install BSNL capitel modem in Ubuntu 10.04.

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Ubuntu Installation :: Sudo: Add-apt-repository: Command Not Found

Jan 4, 2011

I've been trying to add (via terminal) a ppa:<name> from this site (finally got around to getting a Wacom Bamboo), but every time I try to do as it suggests, I get the following error:


$ sudo add-apt-repository ppa:hughescih/ppa
sudo: add-apt-repository: command not found

I found I already had this installed, but to double-check,I've uninstalled and re-installed it to make sure, and still to no avail. I wasn't sure if I'm still missing something or what the deal may be.

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Ubuntu :: Getting Into A Directory On Server - Sudo: Cd: Command Not Found

Feb 6, 2011

I am trying to get into a directory on my server, that is owned by root.


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Ubuntu Installation :: Sudo: Apt: Command Not Found While Installing?

Jun 21, 2011

so i was removing softwares using ubuntu software center.. games i don't play and cheese webcam booth because it was not working, i intended to re-install it. after my installation, half my icons (i have extensively personalized my desktop) changed to defaults. The themes page said 'theme will not be as it appears because default.kde is not installed'. i did not remove any such package. just games. and furthermore, i installed a kubuntu plasma desktop system which i read in a thread contains the file default.kde but that hasn't helped and i still don't know what do to..

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Ubuntu :: Error 17 - But 'sudo Grub' - Command Not Found

Jul 30, 2010

I have a guy in my office who was using an old version of ubuntu and he tried upgrading to 10 but now he's getting grub error 17. I Google this and everyone suggests reinstalling grub starting with opening a shell and typing 'sudo grub'.

However, I get 'command not found' in response to that. I've tried looking for the location of grub so I could try 'sudo /sbin/grub' and such, but I don't see it anywhere.

Also, I'm using a version 9.10 Live CD at the moment because I can't find out how to disable the drmraid option on the version 10 CD (necessary to detect the hard drives which, although they are on a raid controller are not configured as an array but separate drives).

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Ubuntu :: Standby Doesn't Work Anymore?

Apr 26, 2010

I'm using Karmic since November and standby/sleep has always worked fine. Some weeks ago, it stopped working fine.

After a reboot, I can put the system in standby only once. If I try standby after that, the system seems to do a normal standby, but it resumes at the moment the fans would normally stop working.

I tried different things like the s2ram program, pmi action sleep, etc. I went to the BIOS and tried a number of things, one was succesfull: disable USB. When USB is disabled I can go into standby every time. When I enable USB again (even with no devices connected), standby only works once again.

So, how can I disable USB at the moment I go into standby?

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Ubuntu :: If Don't Use For A Week It Doesn't Work Anymore

Jun 22, 2010

If i use my Ubuntu some times per week, there isn't any problem. But if i don't use it for a short time (a week), when i want use it again and select it on GRUB.. after the first loading screen (on Ubuntu 10.04 the purple screen with Ubuntu in white and some points under), my screen is black. The computer screen is receiving signal because the led is green and not brown/orange like when is on standby mode. On Windows i haven't any problem.

First time it happened with Ubuntu 9.10. I didn't got solution for it and i format the partition and install the 10.04. But now it happen again with 10.04. I have an ATI 5770 and i have tried drivers since 9.12 till 10.4 (last ones the best i have had) On versions before 9.10 i had no problem, but i can't confirm that, because i had other graphic card (NVIDIA 9800GT). But the 5770 didn't work well on previous version so i updated to 9.10 and after this problem, updated to 10.04.

At spanish forum, people don't know solution for this problem, they never read about a similar problem. I hope you know a solution for it, because the only one i found and work is.. format and reinstall.

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Slackware :: Sudo Slackpkg = Command Not Found

Mar 1, 2010

I edited my "sudoers" file with "visudo". Added the line, after the root privileges definition.

root ALL=(ALL) ALL
myuser ALL=(ALL) ALL

I try to:

$ sudo ls /root


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Ubuntu :: 9.10 External Microphone Doesn't Work Anymore

Jan 14, 2010

Update 6th March 2010: Update to Kernel 2.6.31-20 SOLVED the problem. Recording works again (still wouldn't in kernels 2.6.31-17 to 2.6.31-19). If a kernel update doesn't solve your problem, please read post 14 on page 2 by Mocha which seems to have solved the problem for other users without updating the kernel

Update 8th February 2010 to Kernel 2.6.31-19 did not solve the problem, please also read post number 7 for more details.

Quick Conclusion for other users who might experience the same problem:

After an update to kernel version 2.6.31-17 in Ubuntu 9.10 Karmic Koala, my external microphone did not work anymore. Playback was possible, just recording would not work anymore, although there was quite some background noise in the headphones. This made it impossible for me to use Skype and/or Sound Recorder.

All the possible solutions offered below did not help in my case (although you might give them a try).

I switched back to kernel version 2.6.31-16 where the problem does not occur.

Output: cat /proc/asound/card0/codec#* | grep Codec

Realtek ALC662 rev1

I know there are lots of threads about this topic, but I have spent hours on this problem already and none of the solutions offered so far worked for me so I decided to start this thread.

I have been using Ubuntu 9.10 and so far, my external microphone worked flawlessly in Skype as well as in Sound Recorder. A few days ago, I received a call on Skype and all the guy on the other side could hear was loud noise. I can only play sound, but not record anymore (i.e. the microphone doesn't work anymore). I tried two different microphones just to be sure whether one was defective and also checked it in Windows (where they both work).

I am not sure what might have caused this problem, I just remember a kernel upgrade about that time (not sure whether this is the reason though). I use 2.6.31-17-generic now.

Here is what I have tried so far:

1) Right-click on the Sound Icon in the top right corner and checked the following: in the hardware tab, it is set to analog stereo duplex, input is set to internal audio analog stereo (no other choice here) and the mic is NOT muted (playing with the volume doesn't help either) and output is set to internal audio analog stereo (again, no other choice) and connector is set to analog output (here I can switch to analog headphones or analog speaker, but makes no difference).

I remember that I could choose between Microphone 1 and Microphone 2 in the input tab; this is somehow magically gone.

2) Installed padevchooser, tried several settings to no avail

3) When I use "alsamixer" (version 1.0.20) in a terminal, Playback>Master is set to 100<>100, Capture is set to 150<>150, lowering and/or playing with these figures doesn't help either.

When I use "alsamixer -Dhw:0" in a terminal, I get the same results as in step four.

4) In Gnome Alsa Mixer, only "Beep" is muted, everything else is set to max. I have Master, Headphon, PCM, Front, Front Mi (x2), Lin, Mic, Mic Boost, Capture (x2, set to record), Beep, Speaker

I have tried to mute/unmute different setting to no avail. Now I wonder why I have two Front Mi and two Capture entries. This is different than it used to be, might this be causing the problem?

5) Fiddling with Pulse Audio Volume Control didn't help either.

6) Had a look at "paman" (pulse audio manager), not sure whether I should change anything here.

7) Installed "linux-backports-modules-alsa-karmic-generic" and rebooted as recommended in several threads, did not help either.

Added the parameters "model=auto" and "probe_mask=1" to '/etc/modprobe.d/alsa-base.conf', did not work, so I deleted the entries again (hint from [url], see post 5)

Now I am at my wits end. I need my microphone to work, especially for Skype, otherwise I have to switch to Windows every time I receive or want to make a call which is definitely not a long-term solution?

Does anybody have an idea what might be causing this problem? As I said, it used to work flawlessly just a few days ago and now I don't even know what I should do next to make it work again...

Output of "amixer"

When I run "alsactl init" I get the following result which might be at least a part of the problem, but I wouldn't know how to solve this problem:

Unknown hardware: "HDA-Intel" "Realtek ALC662 rev1" "HDA:10ec0662,103c303a,00100101" "0x103c" "0x303a"
Hardware is initialized using a guess method

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Ubuntu :: Gnome Do Gcalc Doesn't Work Anymore

May 10, 2010

I don't know whether it has to do with Googles revamp of their search page or something else but it doesn't work any more.

Typing:2+2 =

Results in:"Google Calculator could not evaluate the expression."

I'm using Ubuntu 10.04. GNOME Do

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Ubuntu :: Grub Doesn't Work Anymore Since Update

Oct 25, 2010

I've got a double boot system (Windows XP Pro and Ubuntu Maverick). Since I updated Grub2, Grub doesn't work anymore! I'd tried this (because I HAD that error). But since than, I'd a black screen (harddisk didn't anything, and Grub too...) And now, after using a couple of these commands via the Ubuntu Lucid Lynx Live CD I get a mini bash in Grub, but no entry's to one of the two systems! What's wrong, and what do I have to do? (and what did I wrong?

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Ubuntu Servers :: Vsftpd Doesn't Work Anymore

Nov 27, 2010

I recently installed vsftpd on my system and it was running fine for my system users. Now I wanted to add virtual users so I googled it, I found this tutorial: [URL]

I did what they've been saying over there but when I restarted the vsftpd I couldn't login with the virtual user and also not with the system user anymore. This is the error ( with the system user who could login before ):

Status:Verbinden met
Status:Verbinding aangemaakt, welkomstbericht afwachten...
Antwoord:220 (vsFTPd 2.2.2)


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Ubuntu :: Sound Control Doesn't Work Anymore

Nov 30, 2010

after installing trying to install veetle on my ubuntu 10.04 64 bit I always get the message at the start-up:could not update /home/user/.ICEauthority.my sound control does not work anymore (message: 'waiting for sound system to respond')using Krusader I get the message 'Cannot talk to klauncher: The name org.kde. klauncher was not provided by any .service files.I checked the owner of .ICEauthority and the permission and they are OK. Same for my /home. None of the suggestions found in the other threads worked.Veetle has been installed using the install.sh script and there is no unistall option

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Ubuntu :: Suddenly Touchpad Doesn't Work Anymore

Jul 14, 2011

my touchpad worked out of the Box after insalling Xubunut 11.04 and did so ever since. But since yesterday it doesn't. It worked when i shut down the laptop and didn't when i booted later. How do i fix this? Yes i read the article about thouchpads.

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General :: Sudo Aptitude Update Command Not Found?

May 7, 2011

trying to get wine working was reading the tutorial-

"Complete Guide to Using Wine from the Command Line (Ubuntu)" first thing it said to do for ubuntu user's was this-

"Before I continue with my rant about gaming on Linux I would like to point out right now that the very first thing you should do when you install your ubuntu set up is to run the following:

user@ubuntu$ sudo aptitude update
user@ubuntu$ sudo aptitude install ubuntu-restricted-extras

but when i try and run in the terminal i get "command not found".

using ubuntu 11.4 natty kernel linux 2.6.38-8 generic gnome 2.32.1

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CentOS 5 :: Installing Gcc On 5.4 - Error: Sudo: Apt-get: Command Not Found

Oct 21, 2010

I am looking for gcc installation in CentOS 5.4. I cannot use yum install since not connected to internet. I tried to do sudo apt-get install build-essential but received the following error: sudo: apt-get: command not found How to install gcc in my Linix machine?

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Ubuntu :: Media Player Install - Sudo Aptitude Command Not Found

Dec 24, 2010

I recently switched back to ubuntu after a year of gaming on w7, however I think that this time I'm going to stick to ubuntu, if she doesnt screw me like she has the previous times. Anyways, I was just wondering what media players you guys favor, and why? (maybe there doesn't have to be a reason xD), and I tried to install beep media player with:
sudo aptitude install beep-media-player
And the return is: sudo: aptitude: command not found

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