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• making "xwacom set" changes permanent

  - by Philippe

  On my Thinkpad X220 Tablet the touch-finger works flawlessly but the pen is terribly miscalibrated. The calibration tool in System settings - Wacom tablet does not work. Instead, whenever I wan't to use the pen I first need to sudo xsetwacom set 'Wacom ISDv4 E6 Pen stylus' Area 0 0 27760 15690 These changes do not remain permanent. That is, after every reboot they are gone. How can I make the change permanent - I'm not looking for a startup scrip, I'd like to set the right area once for all. Any idea?

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• How to protect Ubuntu from fork bomb

  - by dblang

  I heard someone talking about a fork bomb, I did some research and found some dreadful information about some strange looking characters people can have you type at the command line and as a result do bad things on the computer. I certainly would not issue commands I do not understand but one never knows what can happen. I heard that some OS allows the administrator to place some limit on user processes to mitigate the effects of fork bombs, is this protection in Ubuntu by default or would a person with sudo privilege have to set this? If so, how?

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• How would I know if my OS is compromised?

  - by itsols

  I had opened a php folder from a friend's web host. I run it on mine to fix some bugs. Then I tried attaching the code to be emailed and GMAIL stated that the attachment was infected by a virus. Now I'm afraid if my Apache or OS (12.04) is infected. I checked the php files and found a base64 encoded set of code being 'eval'd at the top of each and every php file. Just reversing it (echo with htmlspecialchars) showed some clue that there were sockets in use and something to do with permissions. And also there were two websites referred having .ru extensions. Now I'm afraid if my Ubuntu system is affected or compromised. Any advice please! Here's my second run of rkhunter with the options: sudo rkhunter --check --rwo Warning: The command '/usr/bin/unhide.rb' has been replaced by a script: /usr/bin/unhide.rb: Ruby script, ASCII text Warning: Hidden directory found: /dev/.udev Warning: Hidden file found: /dev/.initramfs: symbolic link to `/run/initramfs'

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• Why does installing Grub2 give an "ISO9660: filesystem destruction..." warning?

  - by Ettore

  I have installed Ubuntu 12.04 on my computer, but at the end of the installation it gave me an error and it didn't install grub2. Now I'm trying to install it using the live cd: This is my sudo fdisk -l: Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x6af447e6 Device Boot Start End Blocks Id System /dev/sda1 * 2048 781459455 390728704 7 HPFS/NTFS/exFAT /dev/sda2 781459456 789272575 3906560 82 Linux swap / Solaris /dev/sda3 789272576 976773119 93750272 83 Linux After mounting and chroot the linux partiton, I give grub-install /dev/sda command, and I get: /usr/sbin/grub-setup: error: hd0 appears to contain a iso9660 filesystem which isn't known to reserve space for DOS-style boot. Installing GRUB there could result in FILESYSTEM DESTRUCTION if valuable data is overwritten by grub-setup (--skip-fs-probe disables this check, use at your own risk). (same error even with grub-install --recheck /dev/sda) What can I do? I also tried boot-repair, but I get this error: http://paste.ubuntu.com/1069353/

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• USB Storage Device Automount

  - by matto1990

  Under Ubuntu 10.04 one of the problems which appeared is that USB devices would no longer automatically mount when plugged in. Normally I would get a pop up message asking what application I wanted to open the newly plugged in device with, however now that doesn't happen. This happens regardless of the way the device is formatted (NTFS or FAT32) and all other USB devices (printer, keyboard and mouse) work perfectly. My current solution is the mount them manually using sudo mount dev/... /medai/... however to be honest I'm just getting tired of having to do this. I'm happy to post any extra information you are likely to need. I know there will be lots of places I could look to find out what's going wrong but I have no idea where to start really.

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• How do I modify the noacpi option?

  - by Sagar Ratnakara Nikam

  I am new to ubuntu and have stared using it since a week. I installed ubuntu server 11.10 on a VM created using VMWare player. Once installed, i tried to install ubuntu desktop using sudo apt-get install --no-install-recommends ubuntu-desktop Now I am unable to boot and i get the following error *PulseAudio configured per-user session After this, nothing happens and the ubuntu server does not boot. I read in another Q&A, the same problem and the solution. Just Installed a CLI system then ubuntu-desktop, does not boot automatically My question is how to modify noacpi option. How do i get into the boot for the ubuntu server? I have read on the net that by hitting the shift button, we can get into the boot options. I tried that, but no success, probably since i am running ubuntu on VMWare Player. Please guide me on how to solve this problem

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• can't update 12.04 getting package header error

  - by joel

  I originally posted this question, and was redirected to another thread where the question had already been asked. I then posted to that thread and had my post deleted by moderator fossfreedom, and told to post a "new" question... so wth ever.... I don't care if it's old or new I just need help here people! In a nutshell, I can't use sudo apt-get update or the GUI update tool to update my system. Anytime I try using either tool it gives me an error about packages missing headers. I can't send error reports, I have tried all the listed solutions from this post: I can't update my system properly, "no package header" error and from this post: "Problem with MergeList" error when trying to do an update and neither one work. I just want a working solution since I don't have the means of re-installing the OS entirely, and I REALLY don't want to have to go back to using Windows.

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• Show Ubuntu logo in Byobu (tmux) status bar?

  - by RSoul

  For some reason my Byobu (tmux) status bar is showing TAB instead of the ubuntu logo. This: where it should be this: I've tried installing some different fonts, but have not corrected the issue yet. Any ideas? Further information: sudo apt-get install ttf-ubuntu-font-family Reading package lists... Done Building dependency tree Reading state information... Done ttf-ubuntu-font-family is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Update: fc-list on my computer shows all the fonts with the prefix /usr/share/fonts/ e.g., /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-R.ttf: Ubuntu Mono:style=Regular But the same command on a working system shows fonts listed thus: Ubuntu Mono:style=Bold Italic Perhaps it's a font location problem?

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• Can't install ATI proprietary drivers in 12.10. Unity is Missing

  - by EApubs

  I have a laptop with ATI Radeon 6770M HD Hybrid graphics card. In Ubuntu 12.04, I installed the fglrx driver through "additional drivers" and it worked. (I can even switch GPUs). But in the new Ubuntu 12.10, after installing, Unity won't load. Only the mouse and the wallpaper. If I initialize the settings sudo aticonfig --initial then after rebooting it gives a warning saying I'm in low graphics mode! How to fix this? PS : Earlier i used software source to install the drivers. But when using the terminal, I got this warning : update-alternatives: warning: forcing reinstallation of alternative /usr/lib/fglrx/ld.so.conf because link group x86_64-linux-gnu_gl_conf is broken Update : Filed a bug report in launchpad : https://bugs.launchpad.net/fglrx/+bug/1068661

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• How do I remove nitrogen back to Ubuntu's default wallpaper manager?

  - by jonalmeida

  I was using nitrogen when I using openbox, but now I'm trying to stop it from setting the wallpaper so I can use the Ubuntu default (i.e via the System Settings panel). What I've done so far: sudo apt-get remove nitrogen Removed nitrogen configs at ~/.config/nitrogen/ Checked to make sure that draw_background in /desktop/gnome/background was checked So far it still doesn't work. I can't right-click on the desktop, so I'm guessing that I've missed something to get Nautilus back to drawing icons on the screen. Any help is much appreciated. Thanks!

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• Adobe AIR install problem, Ubuntu x64 14.04

  - by Den Rimus

  Haven't seen this kind of error on askubuntu yet. Did everything as it says here: How can I install Adobe AIR? After sudo ./AdobeAIRInstaller.bin shows this image: dropbox.com/s/wg6cv03h5n1tqgr/adobe_air.png Meanwhile terminal shows a bunch of such messages: (setup:2579): Gtk-WARNING **: Unable to locate theme engine in module_path: "murrine", Nothing is installed. Those murrine - it showed another code before ( another than setup:2579) - I googled it, installed something, it showed another code - I googled it, installed something, etc. Doesn't seem to affect installation anyhow.

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• choppy streaming audio

  - by user88503

  I could use some help troubleshooting choppy streaming audio. The problem is jerky playback regardless of audio or video with audio. Both Chromium and Firefox have the problem, however files played directly on the machine with Rhythmbox sound just fine. I'm running 12.04 LTS on a C2D T9300. Most of the audio problems others ask about seem to be hardware related, so the following information might be relevant. sudo lshw -c multimedia *-multimedia description: Audio device product: 82801H (ICH8 Family) HD Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 03 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:48 memory:f8400000-f8403fff

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• How to prevent script not to stop after apt-get?

  - by Eonil

  I keep some bash snippets and copy&paste them when I needed for management. But I discovered apt-get cancels script execution. Here's my script where problematic. apt-get -y install gcc g++ make cmake perl cd ~/ mkdir t1 cd t1 I copy & paste this script on OS X Terminal to Ubuntu 12.04 LTS server (fresh install on VM) Script always stop after apt-get finished. I run this command with root account like this. ssh user1@server <password…> sudo su <password…> apt-get -y install gcc g++ make cmake perl cd ~/ mkdir t1 cd t1 Can this be a problem? Or why my script stops after apt-get finished, and how to make it to continue?

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• How to make read-only file system writable?

  - by Tim

  I am not sure since when the filesystem on my digital audio player has been changed to be read-only. I cannot copy files into it or remove files on it. Are there some possible reasons for the player's file system to change the permission of its file system? I tried chmod: $ sudo chmod a+rw SGTL\ MSCN/ chomd: changing permissions of `SGTL MSCN/': Read-only file system where "SGTL MSCN" is the mounted point of the digital audio player. I was wondering how to make it writable? Thanks and regards!

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• Getting wireless to work on Ubuntu 11.10 (on a mac machine)

  - by yayu

  I have a 2008 white 13.3 inch macbook that now solely runs ubuntu. However, I cannot get wifi or cable to work on it. Regarding the cable, it atleast tries to connect but eventually disconnects from the wired network. Here is the output for lspci (pastebin) I tried installing b43-fwcutter and firmware-b43 but get errors. (I loaded them from a thumb drive and tried sudo dpkg -i). I cannot understand these instructions from the documentation, as I cannot locate the pool directory. b43-fwcutter is located on the Ubuntu install media under ../pool/main/b/b43-fwcutter/ and patch is located under ../pool/main/p/patch/ or both in the official repositories online. Note: In some versions (10.04 and 11.04 at least) there is not a /pool/main/p/patch/ If this file is missing then you don't need it. In this case you only need to install /pool/main/b/b43-fwcutter by following the instructions below.

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• Why ~/.bash_profile is not getting sourced when opening a terminal in Ubuntu 11.04?

  - by Viriato

  Problem I have an Ubuntu 11.04 Virtual Machine and I wanted to set up my Java development environment. I did as follows sudo apt-get install openjdk-6-jdk Added the following entries to ~/.bash_profile export JAVA_HOME=/usr/lib/jvm/java-6-openjdk export PATH=$PATH:$JAVA_HOME/bin Save the changes and exit Open up a terminal again and typed the following echo $JAVA_HOME (blank) echo $PATH (displayed, but not the JAVA_HOME value) Nothing happened, like if the export of JAVA_HOME and it's addition to the PATH were never done. Solution I had to go to ~/.bashrc and add the following entry towards the end of file #Source bash_profile to set JAVA_HOME and add it to the PATH because for some reason is not being picked up . ~/.bash_profile Questions Why did I have to do that? I thought bash_profile, bash_login or profile in absence of those two get executed first before bashrc. Was in this case my terminal a non-login shell? If so, why when doing su after the terminal and putting the password it did not execute profile where I had also set the exports mentioned above?

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• Unable to install Emerald theme manager in Ubuntu 12.04?

  - by kernel_panic

  I learnt how to install ETM from here But when i try to install i get `ubu@sanjay-pc:~$ sudo apt-get install git autoconf libtool libwnck1.0-cil-dev libwnck-dev intltool libdecoration0-dev gawk Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming.code The following information may help to resolve the situation: The following packages have unmet dependencies: libdecoration0-dev : Depends: libdecoration0 (= 1:0.9.7.6-0ubuntu1) but 1:0.9.7.8-0ubuntu1 is to be installed E: Unable to correct problems, you have held broken packages. ` Help Needed

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• Skype installed or not installed, that is the question

  - by Merle

  After upgrading 11.10 to 12.04, I noticed that Skype 2.2.0.35 was no longer on the sidebar of icons. Found it in Dash and it runs but no sound. Figured I'd check Ubuntu Software Center and reinstall but it indicates a different version - 2.2.0.35-0precise3 - and indicates that Skype is not installed. Attempting to go ahead and install errors saying that it can't install when skype is already installed. sudo apt-get remove skype ...says "Package skype not installed" Tried to update apt-get but that didn't make any difference. Seems like it would be best to straighten this all out so it's right and, presumably, the newer version is probably better to have installed. Can anyone step me through how to do so?

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• How do I install OpenStack?

  - by csgeek

  Supposedly openstack can be installed easily under Ubuntu 12.04 LTS. I've installed 32 and 64bit versions of Ubuntu Server with the same behavior. sudo tasksel check OpenStack hit Okay then I get a tasksel: aptitude failed (100) I've seen: http://www.hastexo.com/resources/docs/installing-openstack-essex-20121-ubuntu-1204-precise-pangolin and https://github.com/EmilienM/doc-openstack documentation, but I was hoping that since it was an LTS released and it was an option in tasksel that I was simply overlooking something obvious and it's just a matter of selecting the right checkbox and hitting okay. Too much wishful thinking?

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• Latest alestic ec2 Ubuntu instance seems broken

  - by Kave

  I am using alestic.com ec2 Ubuntu instances now for some time and never had a problem with. Today I created a new Ubuntu 12.04 LTS Precise EBS boot on US-east-1, seems to be a bad build. While doing a sudo apt-get update it breaks and says: W: Failed to fetch bzip2:/var/lib/apt/lists/partial/us-east-1.ec2.archive.ubuntu.com_ubuntu_dists_precise-updates_main_source_Sources Hash Sum mismatch This is on a fresh instance. So I recon something went wrong when creating it. What can be done to fix it?

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• want help in removing packages

  - by mubarak pathan

  I'm using ubuntu 13.10 alongside w-7. I was tring to solve over heating problem. then by mistakely i install 2 packages from s/w center. when I boot up PC next time it is giving me error like that "system is running in low graphics.. " and I'mm not ablle to boot any more. when I checked newly install packages by command "cat /var/log/dpkg.log | grep "\install\"" then I found they are named as, ebtables:amd64 2.0.10.4-2ubuntu2 and ureadahead:amd64 0.100.0-16 I triend removing those packages by command "sudo ap-get remove ebtables:amd64" but it is giving error... so please buddy help me if u can ..

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• problem in installing binutils

  - by user3667930

  when am trying to install mspgcc on ubuntu 14.04 version am getting an error at "make" during installation of binutils... following are the commands i used.. sir please help me in fixing this error.Thanks in advance.. wget http://ftpmirror.gnu.org/binutils/binutils-2.21.1a.tar.bz2 tar xvfj binutils-2.21.1a.tar.bz2 cd binutils-2.21.1 patch -p1 < ../mspgcc-20120406/msp430-binutils-2.21.1a-20120406.patch cd .. mkdir -p BUILD/binutils cd BUILD/binutils ../../binutils-2.21.1/configure --target=msp430 --program-prefix="msp430-" --with-mpfr-include=/usr/local/include -with-mpfr-lib=/usr/local/lib --with-gmp-include=/usr/local/include -with-gmp-lib=/usr/local/lib --with-mpc-include=/usr/local/include -with-mpc-lib=/usr/local/lib make -j 4 sudo make install cd ../..

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• SSD becomes hot, disk failure warning

  - by Aegluin

  I have a two weeks old SSD (Kingston SSDnow 64GB). Yesterday, the computer shutdown twice and after rebooting I was bombarded with disk failure warnings. I usually take such warnings serious (and backed up), but skeptical. After cooling down, the laptop boots again and the only red Smart value was the temperature (Ubuntu did not show the temperature of failure, but the at that time 29°). After refreshing the Smart status and doing a "self test", everything is green. Before contacting Kingston support, I would like to know whether it could be due to a software issue: Is it possible that it is false alarm, and how can I check? I installed Ubuntu 12.04 32bit and took care of alignment. I supposed Ubuntu set up with optimal settings for SSDs, how can I check that there was no mistake? The current temperature is around 40-56°. Is such a temperature abnormal for SSDs? Output of sudo smartctl --all /dev/sda: http://pastebin.ubuntu.com/1175940/

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• Permissions depending on parameters passed to application

  - by Engineiro

  I have a java app that writes to a very important table I have. This is sudo protected, but this app takes a parameters for where the output should go. The default is the REAL DEAL but the "output" parameter takes priority over the default, so if a user provides a path that they have write permission for, say: /home/username/mystuff then I would like for users to be allowed to write to these directories. The app is launched in a shell script, so I am wondering if I can check that the string does not equal /path/to/real/deal and not empty (since /path/to/real/deal is the default) and allow users to write to places they have permissions for. My impression of linux permissions is that it is tied to the application itself and cannot be conditionally approved, but I wonder if there is some bash fu or alternative method I can perform to get me my desired result. Using Ubuntu 10.04.4 LTS

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• How do I run update-grub from a LiveCD?

  - by Kelley

  Okay, so I did something stupid. I was trying to clean up my Grub entries, and accidentally removed all of my Linux kernels from Grub (they're still on the hard drive). So now, obviously, Grub doesn't give me any way to boot into Ubuntu; I can boot into Windows just fine, but Ubuntu isn't even listed. So I just want to run "sudo upgrade-grub" somehow to restore Ubuntu to the list. I can boot from a LiveCD, but once there how do I run that command? (My Ubuntu installation is on sda5, by the way.)

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