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• Linux distro for software development support?

  - by Xie Jilei

  I've spent too much time on setup & maintain a development server, which contains following tools: Common services like SSH, BIND, rsync, etc. Subversion, Git. Apache server, which runs CGit, Trac, Webmin, phpmyadmin, phppgadmin, etc. Jetty, which runs Archiva and Hudson. Bugzilla. PostgresSQL server, MySQL server. I've created a lot of Debian packages, like my-trac-utils, my-bugzilla-utils, my-bind9-utils, my-mysql-utils, etc. to make my life more convenient. However, I still feel I need a lot more utils. And I've spent a lot of time to maintain these packages, too. I think there maybe many developers doing the same things. As tools like subversion, git, trac are so common today. It's not to hard to install and configure each of them, but it took a long time to install them all. And it's time consuming to maintain them. Like backup the data, plot the usage graph and generate web reports. (gitstat for example) So, I'd like to hear if there exist any pre-configured distro for Development Server purpose, i.e., something like BackTrack for hackers?

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• Is there a shell-independent HUD-like menu search tool for Xfce/GNOME/Cinnamon?

  - by Redsandro

  The Ubuntu Heads-Up Display (HUD) - you love it or you hate it. Personally I rather like a classic desktop, so I use Xfce or GNOME-fork Cinnamon, and I'd like to keep those menu's where they are. But the HUD is pretty awesome when your menus are complex and you forgot where an option sits. This makes that search trick very interesting. I know the HUD is Unity specific. I am looking for a HUD-like tool to complement the menu in shells other than Unity. There is Appmenu Runner for KDE that does this. There is also appmenu-qt for KDE. Problem with the above is that it uses KDE libs, and it only works for KDE apps. This is Linux, there aught to be something like this for GNOME/GTK apps, right? Looking for any tool that can search the menus. I already use(d) Synapse, Kupfer and GNOME Do, but those are simply app-launchers (with some tricks). Something like that would suffice if only they included searching the menus for the currently focused application. The HUD allows users to activate menu items by typing part of the name. It uses a fuzzy search algorithm that will highlight partial matches. It can match menu items that are multiple layers deep in an application's menu hierarchy. The feature, which replaces traditional menu accelerators, is activated by pressing the alt key. Similar questions: Is there a way to search a menu bar in Debian? - Unix.StackExchange How can I access menu bar items alike hud (unity)? - Unix.StackExchange HUD in other window managers (especially xmonad) - AskUbuntu

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• mdadm: brakes boot due to "is not ready yet or not present" error

  - by BarsMonster

  This is so damn frustrating :-| I've spent like 20 hours on this nice error, and seems like dozens of people over Internet too, and no clear solution yet. I have non-system RAID-5 of 5 disks, and it's fine. But during boot up it says that "/dev/md0 is not ready yet or not present" and asks to press 'S'. Very nice for Ubuntu Server - I have to bring monitor and keyboard to go next. After this system boots and it's all fine. md0 device works, /proc/mdstat is fine. When I do mount -a - it mounts this array without errors and works fine. As a dumb and shameful workaround I added noauto in /etc/fstab, and did mounting in /etc/rc.local - it works fine then. Any hints how to make it work properly? fstab: UUID=3588dfed-47ae-4c32-9855-2d69df713b86 /var/bigfatdisk ext4 noauto,noatime,data=writeback,barrier=0,nobh,commit=5 0 0 mdadm config: It is autogenerated: # mdadm.conf # # Please refer to mdadm.conf(5) for information about this file. # # by default, scan all partitions (/proc/partitions) for MD superblocks. # alternatively, specify devices to scan, using wildcards if desired. DEVICE partitions # auto-create devices with Debian standard permissions CREATE owner=root group=disk mode=0660 auto=yes # automatically tag new arrays as belonging to the local system HOMEHOST <system> # instruct the monitoring daemon where to send mail alerts MAILADDR CENSORED # definitions of existing MD arrays ARRAY /dev/md/0 metadata=1.2 bitmap=/var/md0_intent UUID=efccbeb6:a0a65cd6:470dcdf3:62781188 name=LBox2:0 # This file was auto-generated on Mon, 10 Jan 2011 04:06:55 +0200 # by mkconf 3.1.2-2

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• System in low-graphics mode

  - by Artem Moskalev

  I am totally new to Linux, and Ubuntu. I bought ASUS X53E Notebook, erased Windows and installed Ubuntu. First it worked ok. Then when I started working with it, i opened the terminal, entered sudo chmod 666 usr and then all the icons from the main panel disappeared + the whole system stopped responding. I decided to restart the system. When restarted, a message appears: the system is running in low graphics mode and below it: Your screen, graphics card and input device setting could not be detected correctly. You will need to configure it yourself. But the "OK" button is disabled and if I press any buttons nothing happens. If I enter Ctrl-Alt-F2 it opens the bash terminal. But there commands sudo or apt-get are not found and it says that permission denied if i try to enter any folder like cd /usr If I enter the su command it asks for the password I don't know. When encountering this problem first, I reinstalled the whole Ubuntu. but today it happened again just the same. What shall I do? maybe there is something wrong with the hardware? If I need to install another distribution of Linux could you recommend one? but I'd rather stick to Debian releases like Ubuntu. so how do I fix the problem? PS: Please give answers in simple terms because am a newbie so i don't know what goes where yet.

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• loading splash screen takes priority over terminal or windows manager while running elsa

  - by schonjones

  I recently installed e17 and was trying to set up defaults to use elsa and ecomorph over the standard compiz as it constantly crashes since updating to 12.04. If elsa is installed the loading screen hangs and never loads to login, however i can get to a terminal or the e17 login instead of the standard gdm that usually shows up, within a second the screen goes back to the loading screen. I can still type and login as well as run commands in the terminal, but all I see is the loading screen. Switching between terminals i can confirm my commands before it switches back to the loading screen. If i remove elsa the loading screen hangs, but I can get to a terminal login and run lightdm to start my session with no problems. I have multiple DE installed and am unsure which loading screen is coming up. i think it's the KDE screen, grub comes up with a debian background if that helps. I'm not sure if i can switch the loading screen and resolve this issue or if i'm just going to have to scrap using elsa and get lightdm to load on boot again. Elsa would be my preference. I don't have the space to backup my files for a complete reinstall. Please help!

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• Advice on software infrastructure for a FLOSS bounty site

  - by michaeljt

  I am planning to set up a simple web site where people can offer bounties for work on FLOSS projects. Unfortunately I have no experience at web development (I am a C/C++ developer), so I was hoping someone might be able to suggest out-of-the-box packages (preferably Debian ones) I could use to build the site from. My idea of how the site would work is to keep things as simple as possible. The person proposing a bounty would enter a description with relevant links (particularly to a bugtracker entry with the project the work is to be done on, where the real discussion and work would take place) and information and place an initial contribution. Other people would be able to add (donate, not pledge) contributions, but any discussion would take place on the project's bugtracker. I am also planning to run a mailing list rather than a forum (at least initially), so that is not a requirement. Paypal seems to me to be the handiest payment mechanism. So overall what I need is probably a simple interface with Paypal integration and a simple database backend. I hope this is the right place for my question, if not I would be grateful for pointers to somewhere better. And of course, this is purely about the technical side, though I am more than happy to discuss other aspects of the project elsewhere.

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• How to install custom c library?

  - by arijit

  I just wanted to add a c library to Ubuntu which was created by Harvard University for cs50 course. They provided instructions for how to install the library which is listed below. Debian, Ubuntu First become root, as with: sudo su - Then install the CS50 Library as follows: apt-get install gcc wget http://mirror.cs50.net/library/c/cs50-library-c-3.1.zip unzip cs50-library-c-3.1.zip rm -f cs50-library-c-3.1.zip cd cs50-library-c-3.1 gcc -c -ggdb -std=c99 cs50.c -o cs50.o ar rcs libcs50.a cs50.o chmod 0644 cs50.h libcs50.a mkdir -p /usr/local/include chmod 0755 /usr/local/include mv -f cs50.h /usr/local/include mkdir -p /usr/local/lib chmod 0755 /usr/local/lib mv -f libcs50.a /usr/local/lib cd .. rm -rf cs50-library-c-3.1 I did exactly as directed. But the compiler reported “Undefined reference to a function”--the function was Get String. So, I searched for a solution and found one. It said to use the -l switch. Now when I compile I use something like: gcc –o hello.c hello –lcs50 (I don’t remember the exact command.) However, I cannot use the make command, which is easier to use. I understand that there is some problem with linking the library. What is a good solution to this problem?

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• Select (loop) or command not working in shell-script

  - by user208098

  I've been tinkering with Linux and Unix for years but still a novice in my mind and recently find myself trying to be more pro with it as I work in IT. So with that notion I'm studying shell scripting. I've hit a snag in ubuntu using the latest version 13.10 Saucy. When I use the select command in a sh script it doesn't work, depending on how I format the command it will either return Unexpected "do" or Unexpected "done". See the following two examples: This section of code produces an unexpected "do" error: #/bin/bash PS3='Please enter your choice' select opt in option1 option2 option3 quit do case $opt in "option1") echo "you chose choice 1" ;; "option2") echo "you chose choice 2" ;; "option3") echo "you chose choice 3" ;; "quit") break ;; *) echo invalid option ;; esac done This section of code produces an unexpected "done" error. #/bin/bash PS3='Please enter your choice' select opt in option1 option2 option3 quit ; do case $opt in "Option1") echo "you chose choice 1" ;; "Option2") echo "you chose choice 2" ;; "Option3") echo "you chose choice 3" ;; "quit") break ;; *) echo invalid option ;; esac done When I enter these parameters into the command line interactively or manually I get the desired result which is a list of choices to choose from. However when executed from a script I get the before mentioned errors. Also a side note I have tried this in Fedora as a script and it worked perfectly so my question is why isn't it working in Ubuntu, is this a difference between RHL and Debian? Or is it a bug in the latest version of Ubuntu? Thanks in advance for any help! KG

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• Space (and pipe sign) works on occasion only

  - by Timo Riikonen

  I have an issue that when I try to write pipe sign "|" and space after that, I sometimes get wrong type of space (\240) and my command fails. This issue persists on different shells. How could I fix this? I am using Finnish keyboard layout. timo@timo-i7-ubuntu:~$ ps -ef | grep ruby timo 7169 2633 0 12:12 pts/2 00:00:00 ruby1.9.1 /usr/local/bin/rails new admin4 timo 8736 26515 0 14:22 pts/4 00:00:00 grep --color=auto ruby timo@timo-i7-ubuntu:~$ ps -ef | grep ruby No command ' grep' found, did you mean: Command 'igrep' from package 'openimageio-tools' (universe) Command 'dgrep' from package 'debian-goodies' (main) Command 'rgrep' from package 'grep' (main) Command 'zgrep' from package 'gzip' (main) Command 'zgrep' from package 'zutils' (universe) Command 'sgrep' from package 'sgrep' (universe) Command 'lgrep' from package 'lv' (universe) Command 'egrep' from package 'grep' (main) Command 'ngrep' from package 'ngrep' (universe) Command 'grep' from package 'grep' (main) Command 'agrep' from package 'agrep' (multiverse) Command 'pgrep' from package 'procps' (main) Command 'xgrep' from package 'xgrep' (universe) Command 'vgrep' from package 'atfs' (universe) Command 'fgrep' from package 'grep' (main)  grep: command not found timo@timo-i7-ubuntu:~$ cat pipecom ps -ef | grep rails timo@timo-i7-ubuntu:~$ cat pipecom2 ps -ef | grep rails timo@timo-i7-ubuntu:~$ ./pipecom timo 7169 2633 0 12:12 pts/2 00:00:00 ruby1.9.1 /usr/local/bin/rails new admin4 timo 8777 8775 0 14:26 pts/4 00:00:00 grep rails timo@timo-i7-ubuntu:~$ ./pipecom2 ./pipecom2: line 1: $'\302\240grep': command not found timo@timo-i7-ubuntu:~$ diff -w pipecom pipecom2 1c1 < ps -ef | grep rails --- > ps -ef | grep rails

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• How to install Gyachi on ubuntu 12.10

  - by Oguz Can Sertel

  I would like to use Gyachi on ubuntu 12.10. I tried these steps but it doesn't work.. I wanted to compile it myself... but it need some libs... it made me confused... so I gave up sudo add-apt-repository ppa:adilson/experimental sudo apt-get update sudo apt-get install gyachi Thank you for your helps at first command the output: sudo add-apt-repository ppa:adilson/experimental You are about to add the following PPA to your system: Contains packages that are not in the official Debian/Ubuntu repositories and newer versions and snapshots which are not available yet in the repositories. Theses packages are experimental. Use them at your own risk. More info: https://launchpad.net/~adilson/+archive/experimental Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmp3y3i7p/secring.gpg' created gpg: keyring `/tmp/tmp3y3i7p/pubring.gpg' created gpg: requesting key 27B81625 from hkp server keyserver.ubuntu.com gpg: /tmp/tmp3y3i7p/trustdb.gpg: trustdb created gpg: key 27B81625: public key "Launchpad Experimental Packages PPA" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK and after sudo apt-get update; this is (sudo apt-get install gyachi)'s output here is the output: sudo apt-get install gyachi Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gyachi

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• Is it recommended to use more than one language at a startup?

  - by GoofyBall

  I work for a mobile startup where, for historical reasons, our chosen language was C#. I was recently assigned to a small project to build a tool that would be used by us internally. When I explained my intention to use Python to build this tool I was heavily criticized for this because introducing new languages, and technologies (Debian, Apache, Python and Django) into our ecosystem would make it harder for other developers to maintain (because only two other people know more than one language besides C#). I countered that this project would take far longer to develop in C# (which I think is an inherent problem with the language/.NET framework) and that the project was small and designed to solve a very particular problem. Of course it is necessary that the ecosystem be as a homogeneous as possible but if your are developing tooling, infrastructure, and internal systems when there are better things to build them with than C# then you should consider using them. By using one language you exclude a lot of other great libraries and frameworks out there, and this case it was the difference between taking one week to build in Python as opposed to a month in C#. Do you think it is acceptable to understand and use only only one language at a startup or even a larger company? Am I perhaps being naive??

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• Raspberry Pi, Time Capsule Progress

  - by Richard Jones

  So by way of an update. I thought all was good with my Raspberry Pi, Debian and Netatalk Apple Time Capsule Clone. However something very strange going on. Although I could backup my Mac's + PC's fine to Raspberry Pi with external USB HD; strangely with RPI running, I couldn't use AirPlay. I found myself unable to play anything from Mac to Apple TV. So after lots of trying to make this work, I about turned and finally went out and got myself a 2TB Apple Time Capsule. More cash than I would want to spend on anything like this, but Apple you got me. I would like to offer a top tip, which maybe goes a small way to justifying silly expenditure... You can easily add a USB HD to any Time Capsule. I've just added a 3 TB external USB HD, giving me a 5 TB of total backup grunt. 3 TB External USB HD, was peanuts by comparison to Apple kit. So all working, its all solid as you'd expect.Apple 2, maybe me .5. But strong, solid backups now happening, without hassle (but a bit of a credit card bill to follow)

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• Running Ubuntu Server from a USB key / thumb drive (being mindful of flash's write limitations)

  - by andybjackson

  Having become disillusioned with hacking Buffalo NAS devices, I've decided to roll my own home server. After some research, I have settled on an HP Proliant Microserver with Ubuntu Server and a ZFS RAID-Z array for data. I settled on this configuration after trying and regretfully rejecting FreeNAS because the Logitech Media Server (LMS) software isn't available on the AMD64 flavour of this platform and because I think Debian/Ubuntu server is a better future-proof platform. I considered Open Media Vault, but concluded that it isn't quite yet ready for my purposes. That said, FreeNAS does include the option to run itself off a 2GB+ flash device like USB key or thumb drive. Apparently FreeNAS is mindful of the write limitations of flash devices and so creates virtual disks for running the OS, writing only the required configuration information back to flash. This would give me an extra data drive slot. Q: Can Ubuntu Server be configured sensibly to run off a flash device such as a USB key/thumb drive? If so, how? The write limitations of flash should be accounted for.

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• Install a i386 printer driver into an amd64 distribution or how can I find a good printer based on features?

  - by Yanick Rochon

  Hi, I just bought a Lexmark Interpret S408 all-in-one printer. The box said that it supported Ubuntu 8.04, but I told myself it should work with Lucid... well no. The only driver I have found is for i386 while I have a amd64 image installed; the architecture is incompatible. So, the quesiton is : Is it possible to install that driver anyway, somehow? Or do I need to take that printer back to the store and buy another one? If the latter is the only alternative, I need a printer that has wireless connection capability can do color printing is of good price (less than $200 CAD) Thank you for your answers, help, and tips. ** UPDATE ** The driver was given in the form of deb package (for Debian distributions) and I managed to extract the actual deb package driver out of the install program. I ran sudo dpkg -i --force-all lexmark-inkjet-09-driver-1.5-1.i386.deb and the driver installed, and I was able to print something out. But that pretty much ends there; I cannot access anymore of the printer settings, etc. (i.g. scanner, fax, wifi settings, etc.) I should suffice for now as I'm satisfied with the printer's features (and size, and prince), but if I could have a full-linux-supported printer like that one, I would return this one in exchange for the other.

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• New to emacs -- my key bindings are different from what is described in the tutorials. How to fix this?

  - by MountainX

  I'm using emacs v24 [GNU Emacs 24.0.94.1 (x86_64-pc-linux-gnu, GTK+ Version 3.3.20) of 2012-03-26 on meitnerium, modified by Debian] on Kubuntu 12.04. My basic problem is that emacs is not behaving the same as the tutorials I'm reading. I either need different tutorials or I need to make my emacs work as described in the tutorials. Being new to emacs and KDE, I don't know where to start because of this incongruence. My specific problem is this: When I shift-left-mouse-click, I get a buffer dialog popup. That differs from my understanding of the documenation: shift mouse-1 Draws lines, rectangles or poly-lines, erases, cuts, copies or pastes. I also want to use CUA mode. The CUA mode documents seem to indicate that shift-left-mouse-click produces: rectangle highlighting by dragging the mouse while holding down the shift key. I don't get that result either. In fact, I can't select using any modifier keys together with a drag action. Maybe this is a KDE issue. I don't know.

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• How to install Gyachi on ubuntu 12.10 [Solved]

  - by Oguz Can Sertel

  ok ... there is no way to install it on ubuntu 12.10 I would like to use Gyachi on ubuntu 12.10. I tried these steps but it doesn't work.. I wanted to compile it myself... but it need some libs... it made me confused... so I gave up sudo add-apt-repository ppa:adilson/experimental sudo apt-get update sudo apt-get install gyachi Thank you for your helps at first command the output: sudo add-apt-repository ppa:adilson/experimental You are about to add the following PPA to your system: Contains packages that are not in the official Debian/Ubuntu repositories and newer versions and snapshots which are not available yet in the repositories. Theses packages are experimental. Use them at your own risk. More info: https://launchpad.net/~adilson/+archive/experimental Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmp3y3i7p/secring.gpg' created gpg: keyring `/tmp/tmp3y3i7p/pubring.gpg' created gpg: requesting key 27B81625 from hkp server keyserver.ubuntu.com gpg: /tmp/tmp3y3i7p/trustdb.gpg: trustdb created gpg: key 27B81625: public key "Launchpad Experimental Packages PPA" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK and after sudo apt-get update; this is (sudo apt-get install gyachi)'s output here is the output: sudo apt-get install gyachi Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gyachi

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• ProStar gaming laptop, which had Ubuntu 10.10, won't boot past Grub. Thoughts?

  - by Richard Zak

  At work we have some high-end gaming laptops we use for their dual GPUs. The machines have second generation i7 CPUs, and came with Windows 7. On most of them I installed Ubuntu 10.10, and all was fine. There were two laptops that I wanted to repurpose and wanted to reinstall the OS. It boots the CD (burned Ubuntu installation CD, I've tried 10.10, 11.10, and 12.04, as well as CentOS 6), and when Grub tried to boot the kernel, I just get a cursor blinking in the upper left corner of the screen. I tried the disabling of ACPI and the other items in the advanced menu, but nothing works. I could still boot to the current Linux installation though. I was able to install Windows 7 again, and use WUBI, but I think that works because it uses the Windows bootloader and not Grub. How could it have worked before and not now? I have confirmed that the CD is fine, as are the hard drive and CD drive. I also had the same problem with Debian, and had to boot through Windows 7 to install it.

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• SSD I/O extremely slow installing/booting Ubuntu 12.04

  - by Menda

  These are some useful specs: Macbook Pro 7,1 OWC Mercury Extreme Pro 2,5" SATA SSD (120 GB). Has SandForce driver. Ubuntu 12.04 Desktop 32 bits. One 18 GB partition for GNU/Linux and 1.5 GB for SWAP. MD5 for the Ubuntu install CD is OK. I tried to install Ubuntu. It seems that everything is recognized, but there's a big problem: read and writes to the SSD are extremely slow. For example, the install process, which shouldn't take more than 20 minutes, it takes 7 hours. Then, booting up the computer takes about 20 minutes. I checked and the problem is definitely the SSD. Every access to any file is like 10 times slower than normal. I have tried to format the partition as Ext4 and Ext3 with the same problem. Trying to install other distros like Fedora 17, I have a similar problem. There's a "lag" with the SSD, but not so accused as in Ubuntu. Surprisingly, Debian 6.0 installs and works without any problem. Mac OS works pretty good as well in the other partition, so I discard it's an SSD problem. Thanks for your help!

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• htaccess and htpasswd trouble

  - by hjpotter92

  This is the first time that I have ever tried working with .htpasswd and .htaccess files, so please point out my childish works. I have my apache document root set to /www/ on my debian server. Inside it, there's a folder named Logs/ which I want to restrict access using a htpasswd. I created my htpasswd file using the shell's htpasswd command. And this is the result: > user:<encoded password here> > hjp:<encoded password here> > hjpotter92:<encoded password here> I put this file named .htaccess inside /www/. The Logs/ has following htaccess file in it: > AuthName "Restricted Area" > AuthType Basic > AuthUserFile /www/.htpasswd > AuthGroupFile /dev/null > require valid-user This was again created using an online tool(I forgot its name/link, and can't search the browser-history now). The problem, as it might've already struck you is that I am experiencing no change on my Logs folder access. The folder is still accessible to everyone. I am running apache as root user(if that matters/helps). Please help/guide me. I've tried reading some htaccess guides and have followed some of older SO questions, but still haven't figured out a way to restrict access to Logs folder with a password.

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• Cannot establish ssh connection to computer on local network

  - by ovangle

  I've just (re)installed ubuntu 11.10 on my main pc, and the connection times out every time I try to ssh connect to my laptop (over the local network) to retrieve the files I backed up there. The connection times out every time I try to connect. I can establish a connection in the other direction without issue. Here's the verbose output I get when I try to connect: ovangle@ruby-EP43-DS3:~$ ssh -v [email protected] OpenSSH_5.8p1 Debian-7ubuntu1, OpenSSL 1.0.0e 6 Sep 2011 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to 10.1.1.4 [10.1.1.4] port 22. debug1: connect to address 10.1.1.4 port 22: Connection timed out ssh: connect to host 10.1.1.4 port 22: Connection timed out ssh is installed on both machines, and I've tried deleting '~/.ssh/known_hosts' on both machines, still nada. I've changed the sshd logging on the laptop to VERBOSE and restarted the daemon (because I wasn't getting any relevant syslog entries otherwise), and this is the log for the most recent connection attempt. EDIT: posted wrong logs last time. They just showed that there was a connection received, they weren't actually the sshd logs (which were in auth.log as I recently discovered). Unfortunately, that log is filling up with extremely weird error messages and it gives me no information about the connection. Nov 8 16:02:18 ovangle-A6Rp pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000) Nov 8 16:02:18 ovangle-A6Rp pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device Nov 8 16:02:18 ovangle-A6Rp pkexec[6270]: ovangle: Executing command [USER=root] [TTY=unknown] [CWD=/home/ovangle] [COMMAND=/usr/sbin/gnome-power-backlight-helper --set-brightness 2] Nov 8 16:02:19 ovangle-A6Rp pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000) Nov 8 16:02:19 ovangle-A6Rp pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device Nov 8 16:02:19 ovangle-A6Rp pkexec[6273]: ovangle: Executing command [USER=root] [TTY=unknown] [CWD=/home/ovangle] [COMMAND=/usr/sbin/gnome-power-backlight-helper --set-brightness 7]

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• Problem running apt-get DPKG broken?

  - by nekochan7

  Problem when runing apt-get debian av # sudo dpkg --configure -a Setting up libgdata2.1-cil (2.2.0.0-2) ... mono: ../nptl/pthread_mutex_lock.c:80: __pthread_mutex_cond_lock: Assertion `mutex->__data.__owner == 0' failed. Native stacktrace: /usr/bin/mono() [0x4ac5a1] /lib/x86_64-linux-gnu/libpthread.so.0(+0xf8f0) [0x7fee2c0e88f0] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37) [0x7fee2bd65407] /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7fee2bd68508] /lib/x86_64-linux-gnu/libc.so.6(+0x2e516) [0x7fee2bd5e516] /lib/x86_64-linux-gnu/libc.so.6(+0x2e5c2) [0x7fee2bd5e5c2] /lib/x86_64-linux-gnu/libpthread.so.0(+0x113f6) [0x7fee2c0ea3f6] /lib/x86_64-linux-gnu/libpthread.so.0(pthread_cond_wait+0x150) [0x7fee2c0e5140] /usr/bin/mono() [0x6058b3] /usr/bin/mono() [0x5fdd25] /usr/bin/mono() [0x604077] /lib/x86_64-linux-gnu/libpthread.so.0(+0x80ca) [0x7fee2c0e10ca] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fee2be1605d] Debug info from gdb: ================================================================= Got a SIGABRT while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. ================================================================= Aborted mono: ../nptl/pthread_mutex_lock.c:80: __pthread_mutex_cond_lock: Assertion `mutex->__data.__owner == 0' failed. Native stacktrace: /usr/bin/mono() [0x4ac5a1] /lib/x86_64-linux-gnu/libpthread.so.0(+0xf8f0) [0x7fcec8eef8f0] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37) [0x7fcec8b6c407] /lib/x86_64-linux-gnu/libc.so.6(abort+0x148) [0x7fcec8b6f508] /lib/x86_64-linux-gnu/libc.so.6(+0x2e516) [0x7fcec8b65516] /lib/x86_64-linux-gnu/libc.so.6(+0x2e5c2) [0x7fcec8b655c2] /lib/x86_64-linux-gnu/libpthread.so.0(+0x113f6) [0x7fcec8ef13f6] /lib/x86_64-linux-gnu/libpthread.so.0(pthread_cond_wait+0x150) [0x7fcec8eec140] /usr/bin/mono() [0x6058b3] /usr/bin/mono() [0x5fdd25] /usr/bin/mono() [0x604077] /lib/x86_64-linux-gnu/libpthread.so.0(+0x80ca) [0x7fcec8ee80ca] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fcec8c1d05d] Debug info from gdb:

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• 11.10 system crashes for no apparent reason [closed]

  - by varanoid

  I'm relatively new to Linux, and while I know a fair amount about computers and programming, it certainly isn't my specialty. I have a dual boot with Windows 7, and it has been working very well for me until recently. Just randomly the computer will freeze. The last time I was smart enough to keep the System Monitor open when it happened, and it looks like at the time of freezing "bash" and a bunch of other processes that I don't recognize seem to have flooded the memory. So it looks like my memory is getting overloaded and this is what is crashing the system, but I honestly have no idea what could be doing it. Generally I have a bunch of programs running, but they don't take much RAM or CPU: Transmission, Libre Office Writer, Firefox, Empathy, and Banshee. Sometimes I also have Text Editor and Terminal open, but it crashes regardless. When it crashes, it seems that all of the programs are working fine but things like windows, the taskbar, and operations like Alt+Tab just stop working properly or at all. Sometimes the mouse and keyboard freeze and I have to power off manually. Other than that I don't know what the problem is. The only irregularity I've experienced is that I can't download "Debian package management system" even though other updates download fine.

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• Setting console resolution in Ubuntu Server 13.10 within VMware

  - by user205625

  I've completed an install of Ubuntu Server 13.10 within VMware and am running into a problem configuring the console (non-graphical) resolution. When I was running Ubuntu Server 13.04, I ran into the same problem... posted the question here, which I later solved by editing /etc/default/grub thus: GRUB_CMDLINE_LINUX_DEFAULT="splash vga=789" I then ran sudo update-grub, sudo reboot and 13.04 stuck in a larger-size console mode... just what I wanted. BUT when I run the same commands in 13.10, during the reboot it changes to the new screen-res, BUT the screen stays black and I can't interact with it. I power down the VM, go back to a previous snapshot, and try again... and again. Since the hwinfo package is no longer available, I can't run sudo hwinfo --framebuffer to see what options are available. Ideas anyone? Here are the uncommented settings in my /etc/default/grub file at this moment: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=false GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian GRUB_CMDLINE_LINUX_DEFAULT="splash" GRUB_CMDLINE_LINUX="find_preseed=/preseed.cfg" GRUB_DISABLE_LINUX_RECOVERY=false GRUB_GFXMODE=800x600

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• Ubuntu live cd : black screen and blinking cursor

  - by IFasel

  I try to install ubuntu 12.04 on my computer. I can get to the purple screen on the live cd but then, if I choose "Installing Ubuntu", I have a black screen with a cursor blinking (and nothing else happens). My PC : acer aspire M3920, CPU i5-2300, 8 Gb RAM, NVIDIA gt 405. What I already tried : I tried with 12.04 and 13.04 daily build I tried with a live usb and with a live dvd I tried the following boot options : nomodset, acpi=off I googled a lot and it seems that it could be a graphic card problem. Do you know any other boot options that I could try ? UPDATE This is not a duplicate : I've tried all the common boot options (nomodeset, noacpi...) and it doesn't change anything. With the option "no splash" (instead of "quiet splash"), I can see what happens before the forever-blinking cursor : [sdg] no caching mode present [sdg] assuming drive cache : write trough ata8.00: excetion Emask 0x52 ... frozen ata8 : SError : { RecovData RecovComm UnrecovData...} ata8.00 : failed command : IDENTIFY PACKET DEVICE ... ata8.00 : status : { DRDY } ata8 : hard resetting link Does somebody know what it means ? N.B. astonishingly, Puppy Linux boots fine (but Debian, Fedora and Ubuntu do not) Solution In fact, it was not a graphic card problem. I had to disconnect the dvd drive and connect it to another free sata connector (I don't really understand why Ubuntu had trouble with this connector and Windows 7 not). After that, everything worked fine.

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• Booting off a ZFS root in 14.04

  - by RJVB

  I've been running a Debian derivative (LMDE) on a ZFS root for half a year now. It was created by cloning a regular ext4-based install with all the necessary packages onto a ZFS pool, chrooting into that pool and recreating a grub menu and bootloader. The system uses an ext-3 dedicated /boot partition. I would like to do the same with Ubuntu 14.04, but have encountered several obstacles. There is no Trusty zfs-grub package The default grub package doesn't have ZFS support built in. I found a small bug in the build system responsible for that (report with patch created) and built my own grub packages. The built-in ZFS support is dysfunctional, it does not add the proper arguments to the kernel command line I thus installed the ZoL grub package I also use on my LMDE system, which does give me a correct grub.cfg However, even with that correct grub.cfg, the boot process apparently doesn't retrieve the bootfs parameter from the ZFS pool; instead the variable that's supposed to receive the value remains empty. As a result, initrd tries to load the default pool ("rpool"), which fails of course. I can however import the pool by hand, and complete the process by hand. If memory serves me well, I also had to disable apparmor, to avoid the boot process from blocking after importing the pool. Am I overlooking something? Just for comparison, I installed the Ubuntu 3.13 kernel on my LMDE system, and that works just fine (i.e. the identical kernel and grub binaries allow successful booting without glitches on LMDE but not on Ubuntu).

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