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• Using the fsc mount option with nfsroot kernel parameter to allow FS-cache

  - by meanderix

  I'm PXE-booting a Ubuntu 10.10 system, where I specify the kernel parameters as follows: append root=/dev/nfs initrd=ubuntu-boot/initrd.img-2.6.35-24-generic nfsroot=11.22.33.44:/data/nfsroot,fsc ip=dhcp rw I need to use the mount option 'fsc' in order to use FS-cache functionality (the cachefilesd package.) However, when I try this I get the following error upon boot: nfsmount: bad option 'fsc' Why doesn't nfsmount permit this option? (It works fine when you mount manually with "mount -o fsc" after booting up.)

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• How do I reinstate my admin user privileges to global read/write

  - by Matt

  I am running Ubuntu 12.04 LTS. I only have the one user which I created when I installed Ubuntu. Everything has been fine - love it - until I updated a software package recently from the command line using sudo (not gksudo). I was having a little bother which did not make sense to me and in a fluff changed my user read/write privileges through the GUI (not even clear how I got there!). After restart I was stuck in a login loop - using the right login password but kept getting looped back to the login and could only login as Guest. I could still login with my user/password via ctrl + alt + f1 Eventually I was able to login again at start up. Not sure exactly what it was I changed that worked but it was one of/or a combination of installing latest security updates, changing login manager from LightDM to DGM and back again, removing the ICE/Xauthority and chown user. Current dilemma is my primary admin user privileges were read only. In the command line ls -ls /home/user returned this value: drwx------ 48 username username 20480 I have since changed this using sudo chmod 0755 /home/username (from my limited understanding 755 should return my user privileges to their original read/write glory). ls -ld /home/user currently shows my user privileges as: drwxr-xr-x 48 username username 20480 I still seem to have only read access permissions. I've been through lots of threads (and the help file) that talk about creating new users/groups permissions etc. but specific info on returning my existing global/admin/primary users privileges to what they were when I first created that user - baffling me. I feel this is something really simple I'm just not getting it. Please help! sudo mount /dev/sda1 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /proc type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusect1 (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=07pe tmpfs55) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw, ,nosuid,nodev,size=5242880 none on /run/shm type tmpfs (rw,nosuid,nodev) gvfs-fuse-daemon on /home/meng/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=meng) none on /tmp/guest-1R2Fi5 type tmpsf (rw,mode=700)

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• adobe flash not working firefox or chromium

  - by user215216

  I'm new to ubuntu but I think I did everything right. Adobe flash says its installed and I've uploaded the latest Firefox and Chromium. When I go to youtube all I see is a black screen where the video should be and no image, Same in chromium, but at least chromium says it can't load plugin. Have tried various fixes on this web site but to no avail. Have to be doing something wrong or missing some step while quietly going crazy. Can someone please help me?

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• 12.04.1 desktop monitor "Out of Range"

  - by Zach

  I know this question has been asked many-a-times, but I cant seem to get a definite answer to it. I am running 12.04.1 on my HP Pavillion a6 109n PC. Processor is a AMD Athlon 64 x2 Dual core Processor. Every time I boot up my desktop, it runs BIOS, then it boots up Linux. After about 10 seconds, a little blue screen comes up saying: Out of Range: H. Frequency: 92.7KHz V. Frequency: 58.3Hz Can anyone help with this?

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• Nice network diagram editor?

  - by Nicolas Raoul

  Writing a commercial proposal, I want to create a nice graphic showing the clients the architecture I thought of for their IT network, with servers, network connections, firewall, load-balancing, etc. For years I have been using dia, but I am tired of it because: the results are not satisfying, very few network elements are available, and each element's graphic representation is really ugly. Question: How to create nice network diagrams? If a better set of elements was available for dia, that would be a solution.

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• How does process priority influence a process

  - by Luis Alvarado - The Wolverine

  Assuming we have read the following question: Change niceness (priority) of a running process and we know about root, non-root permissions: What actually happens when a running process (Through renice) or a new process (Through nice) gets its priority changed to a positive/negative value it previously had. Does it mean more memory is assign to it? Does more CPU power go to that particular process? Does it reduce any timing for resources for that process? What happens when the process priority change?

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• Schedule sending mail of a log file content

  - by user3215

  I have postfix mail agent installed and I've configured gmail relay and I could send mails from the terminal as below: root@statino1:~# mail -s "subject_here" [email protected] CC: <hit enter for empty cc> Type the mesage here press Ctrl+d I have to send a log file contents as a mail and schedule it to run everyday. How do I send log file contents as mail message, how do I automate the inputs of mail command? so that I can schedule it. Anybody has any idea?

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• Ubuntu apt-get install linux-image

  - by Karl Kloppenborg

  I'd like someone to enlighten me as to what exactly goes on with aptitude when I want a kernel. As we all know, there's pretty much the following kernel option: linux-image-generic linux-image-server linux-image-virtual This morning I did an install and it had linux-image-generic on it, so I ran the following: apt-get -y remove linux-image-* This removed all my kernels as expected, I followed suit with running: apt-get install linux-image-virtual Says I've installed linux-image-server!? Am I missing something here, because I checked twice and it did it twice, however if I manually select a kernel (in my instance I used: linux-image-2.6.35-30-virtual) it will install linux-image-virtual. This seems rather strange to me? Details: Running Ubuntu 9.10 Am I missing something? :)

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• Nvidia problems. I think.

  - by Nate D.

  Let me start off by saying, I've been trying to run Ubuntu on my custom PC for about 2 years. From 10.04 to 12.04, this problem persists. When I try to boot Ubuntu from either a USB stick or a CD, I see the normal Ubuntu splash screen. It looks like it's working, orange dots are moving, but then the screen glitches and freezes. I'm assuming this happens because there are no drivers for my graphics card (Nvidia GeForce 8800, I think). My motherboard has no onboard graphics, nor does it have a VGA out. So, how can I get this working on my system? Can I somehow put the drivers along side the .img on the USB stick? I can boot from my Ubuntu USB stick on my MacBook. In case that helps anyone...

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• 2nd instance of Firefox does not obey GTK2 customizations

  - by Cocoro Cara

  Hi On Ubuntu 10.10 I started a 2nd instance of Firefox using the command: $ firefox -ProfileManager -no-remote & Created a new profile and everything works smoothly except for the fact that this instance of FF does not obey by GTK2 customizations that I have placed in ~/.gtkrc-2.0 Moreover, only SOME of the customizations are not obeyed. For example, the vertical scrollbars are supposed to be on the left, but they are on the right. The scrollbar arrows are together (Mac-like) as specified, so is the scrollbar width. The first instance obeys all customizations with scrollbars on the left. Any ideas?

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• External monitor is blank if I boot with the monitor plugged in

  - by Ronald

  Ubuntu 12.04 has problem with Intel GM45 Chipset, featuring the the Mobile Intel® Graphics Media Accelerator (GMA) 4500MHD I have a COMPAQ Presario CQ70 laptop with an Intel GM45 chipset that features the Mobile Intel® Graphics Media Accelerator (GMA) 4500MHD. I was using the second HDMI video port to drive both a projector or a second monitor. Everything was working fine under Ubuntu 8.04, 9.04, 10.04 and 11.04, however, when I upgraded to 12.04 the second monitor stopped working. What I mean when I say stopped working is: boot with monitor plugged in. Blank screen! Power off, unplug monitor and power on everything works. Plug in monitor (only mode that works in Mirror mode) two monitors that look same. Close laptop lid. screen goes blank only option for useful system is power off and unplug monitor. If I attempt to Adjust the monitor to maximum resolution that the monitor will handle and turn off mirror mode nothing can be moved onto that screen. This all worked fine with earlier versions of Ubuntu, is there a notes about the changes to the graphics management system in 12.04, like there is for the resolver change?

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• What is the version numbering logic for open source developers managing software releases?

  - by Stephen Myall

  I guess this is more of a general question that I cant find the the answer to anywhere. What is the version numbering logic for open source developers managing software releases and is there any governance or guidance I can read up on. The origins of this question comes from me reviewing and researching software on countless websites that I would like to use on my Ubuntu OS. Through experience, I am learning some sites are much better than others explaining if a release is a stable, experimental or maintenance release but these explanations are not consistent with any version numbering logic I am familiar with.

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• 12.10 visual performance using nvidia driver

  - by user100485

  My fresh ubuntu 12.10 install is slow, not something extreme but dragging windows, switching workspaces and things like that are just slow and look horrible. it feels like the fps is dropping in a game. Doing some photoshop work in windows was even a relief! This effect gets worse if I connect my external monitor. My system is an intel pentium dual core T4500 with 4gb memory and a GeForce 8200M G/integrated/SSE2 graphics chip. Nothing fancy but should be able to run ok. My "experience" in ubuntu is set to standard. (MSI cr500 laptop) I've installed the nvidia drivers, tried current and experimental and the experimental drivers seem to perform a bit better but overall bad anyway. I set the mode to adaptive in the nvidia-settings tool and it goes to maximum setting directly and doesn't come back. Using htop I found out that compiz or the X server always use a few percent of my cpu, more than I think it should and the time consumed is 5:18 for compiz, 4:33 for /usr/bin/X and 2:41 for google chrome(about 30 tabs open so not too strange I think.) What can I do to increase the visual performance cause this makes me not want to use ubuntu in public!

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• Why does Ubuntu Download recommend 32-bit install?

  - by Warren Pena

  The Ubuntu desktop download screen has a pair of radio buttons you use to select whether you wish to download the 32-bit or 64-bit version. The 64-bit version is labeled "Not recommended for daily desktop usage." If you have a 64-bit processor, why would you not want to use the 64-bit version of Ubuntu? Update for 10.10: They've removed the "Not recommended" label from the 64-bit version and added a "Recommended" label to the 32-bit version. Update for 11.04: Same as 10.10. Update for 12.04: Still says "Recommended" next to 32-bit version of desktop

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• How do I get my clipboard (copy and paste) working again?

  - by Alex Black

  I'm running Ubuntu 9.04, and out of the blue I can no longer cut and paste, I imagine if I restart my computer I'll be able to, but thats a pain, how can I fix/reset the clipboard? Type "hello" into Text Editor Highlight the text "hello" Press CTRL-C See the text become unhighlighted (is this normal?) Press CTRL-V See the word "network" get pasted in.. perhaps that was the last thing I copied when it was still working?

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• Focus follows mouse stops working when opening window from launcher and no click to focus

  - by user97600

  This is 12.04 default desktop (unity). I set it to focus follows mouse, and changed the menus to be on the window. This worked for a while, then some unknown even, maybe an upgrade maybe some other setting change caused it to stop working. There are many ways for this behavior to start but one reliable one is to bring a window to the foreground/focus with the launcher. Now the focus is stuck on that window and not just the window but the regions within the window so the close, maximize, minimize and menus do not work. I have to use mouse middle and then mouse right and then focus follows mouse is restored for a bit. The exact details of the mouse action aren't clear, sometimes it seems like just mouse middle helps, sometimes just right some times a desperate sequence of clicks :-( I have tried switching to the gnome desktop and it seems to occur less there but it is not eliminated. I have tried switching mice to an old wired USB mouse. I have tried creating a new account and that has not worked. I have observed "split focus" where to scroll button scrolls one one window but the input goes to another. I go trapped recently where my keyboard input went to libre office calc, but I was selecting the search term in the chrome address window. The selection "grayed" but the keyboard input for the search went to libre. Regions in windows have very confused focus. I have to work hard to get focus on for example the close gliph (X) or the minimize gliph (_).

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• Fix Nautilus URIs in a Python script

  - by Pablo

  I have a very basic Python script I wrote mostly for learning purposes. It opens a terminal in the current folder. However, I can't get it to work in folders with accented characters in the URI (e.g.: /home/pablo/Vídeos or /home/pablo/Área de Trabalho), because it looks like Nautilus URIs are encoded to those %{number} values. Is there a way to convert these URIs to normalized URIs without having to translate every possible accented value by hand? Thanks in advance!

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• Did I lost my RAID again?

  - by BarsMonster

  Hi! A little history: 2 years ago I was really excited to find out that mdadm is so powerful so it even can reshape arrays so you can start with a smaller array and the grow it as you need. I've bought 3x1Tb drives and made RAID-5. It was fine for a year. Then I bought 2x more, and tried to reshape to RAID-6 out of 5 drives, and due to some mess with superblock versions, lost all content. Had to rebuild it from scratch, but 2Tb of data were gone. Yesterday I bought 2 more drives, and this time I had everything: properly built array, UPS. I've disabled write intent map, added 2 new drives as a spare and run a command to grow array to 7-disk. It started working, but speed was ridiculously slow, ~100kb/sec. AFter processing first 37Mb at such an amasing speed, one of old HDDs fails. I properly shutdown PC and disconnected failed drive. After bootup it appeared it recreated intent map as it was still in mdadm config, so I removed it from config and rebooted again. Now all I see is that all mdadm processes deadlocks, and don't do anything. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1937 root 20 0 12992 608 444 D 0 0.1 0:00.00 mdadm 2283 root 20 0 12992 852 704 D 0 0.1 0:00.01 mdadm 2287 root 20 0 0 0 0 D 0 0.0 0:00.01 md0_reshape 2288 root 18 -2 12992 820 676 D 0 0.1 0:00.01 mdadm And all I see in mdstat is: $ cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid6 sdb1[1] sdg1[4] sdf1[7] sde1[6] sdd1[0] sdc1[5] 2929683456 blocks super 1.2 level 6, 1024k chunk, algorithm 2 [7/6] [UU_UUUU] [>....................] reshape = 0.0% (37888/976561152) finish=567604147.2min speed=0K/sec I've already tried mdadm 2.6.7, 3.1.4 and 3.2 - nothing helps. Did I lost my data again? Any suggestions how can I make it work? OS is Ubuntu Server 10.04.2... PS. Needless to say that data is unaccessible - I cannot mount /dev/md0 as save the most valuable data. You can see my disappointment - the very specific thing I was excited about failed twice taking 5Tb of my data with it.

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• Is 12.10 ready from prime time?

  - by Mikey

  I recently installed 12.10 - dual boot using Wubi. I had numerous stability problems: many sporadic, unaccounted for system errors, software that was installed and then seemed to disappear from App Launcher, etc. Machine is new HP quad with 4 gig memory - wonderful piece of hardware - definitely no hardware problems there. I went back to 12.04 (installed from ISO image, not Wubi) and it's rock solid - never any issues at all. Is 12.10 not ready for prime time? Are there fixes-updates in the pipe? Should I get a DVD disc and install 12.10 from ISO instead of Wubi? New to Linux/Ubuntu after 20 years on MS/Windows and loving it - I develop in C++ and Python - maybe will try Lazarus since I know Delphi. Would like to use the latest and greatest Ubuntu but I will not sacrifice stabilty. Are there known problems with 12.10? Would using the standard install instead of Wubi help? Seems a lot of users are voting down this question - not sure why since other users have confirmed problems.

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• Apache could not reliably determine server

  - by frqcuse

  Apache cannot fully determine domain name when I tried restarting after install. I get this error; sudo /etc/init.d/apache2 restart *Restarting web server config apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName. Why I'm I seeing 127.0.1.1 I have tried saving ServerName localhost into my /etc/init.d/apache2 but it keeps redirecting me to google search page everytime I type phpmyadmin. Will appreciate an expert help?

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• Bash script using eyeD3 to remove extra tags from mp3 files

  - by jaguare22

  I found what looks like the perfect script for this but getting errors. Hoping someone can see problem. I am running 12.04 Server. Error is - awk: line 0: regular expression compile failed (missing '(') ): awk: line 0: regular expression compile failed (missing '(') ) The following tags have been found in the mp3s: These tags are to be stripped: Here is a the script obtained from savvyadmin !/bin/bash Script name: strip-tags.sh Original Author: Ian of DarkStarShout Blog Site: http://darkstarshout.blogspot.com/ Options slightly modified to liking of SavvyAdmin.com oktags="TALB APIC TCON TPE1 TPE2 TPE3 TIT2 TRCK TYER TCOM TPOS" indexfile=mktemp Determine tags present: find . -iname "*.mp3" -exec eyeD3 --no-color -v {} \; $indexfile tagspresent=sort -u $indexfile | awk -F\): '/^<.*$/ {print $1}' \ | uniq | awk -F\)\> '{print $1}' | awk -F\( '{print $(NF)}' \ | awk 'BEGIN {ORS=" "} {print $0}' rm $indexfile Determine tags to strip: tostrip=echo -n $tagspresent $oktags $oktags \ | awk 'BEGIN {RS=" "; ORS="\n"} {print $0}' | sort | uniq -u \ | awk 'BEGIN {ORS=" "} {print $0}' Confirm action: echo echo The following tags have been found in the mp3s: echo $tagspresent echo These tags are to be stripped: echo $tostrip echo echo -n Press enter to confirm, or Ctrl+C to cancel... read dummy Strip 'em stripstring=echo $tostrip \ | awk 'BEGIN {FS="\n"; RS=" "} {print "--set-text-frame=" $1 ": "}' First pass copies any v1.x tags to v2.3 and strips unwanted tag data. Second pass removes v1.x tags, since I don't like to use them. Without --no-tagging-time-frame, a new unwanted tag is added. :-) find . -iname "*.mp3" \ -exec eyeD3 --to-v2.3 --no-tagging-time-frame $stripstring {} \; \ -exec eyeD3 --remove-v1 --no-tagging-time-frame {} \; echo "Script complete!"

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• Ubuntu 11.10 doesn't detect Intel integrated graphics (i7-2670QM CPU)

  - by Telmo Marques

  The laptop I'm using is an MSI GT683DX-847PT that comes with an NVIDIA GeForce GTX570M discrete GPU, and an Intel Core i7-2670QM CPU. According to Intel's description of the Core i7-2670QM CPU, it has an HD Graphics 3000 integrated GPU. The problem is that the Intel integrated graphics GPU doesn't come up in lspci nor in lshw, only the NVIDIA GPU shows up. Here is the output of both commands: sudo lspci: http://pastebin.com/raw.php?i=9AZg8bJy sudo lshw: http://pastebin.com/raw.php?i=6cAMFQsY I was counting on having two GPU's to run CUDA programs on the discrete NVIDIA GPU, while X was handled by the integrated Intel GPU, to prevent kernel execution timeout. Why doesn't the Intel HD Graphics 3000 GPU show up? Any tests I could make to verify the presence of an integrated GPU?

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• {solved}stream TV audio through mic input?

  - by Drew S

  I have a gaming headset and use it with a few devices and am looking for a way to stream my audio through my pc from tv through the mic jack and then through the optical out. the system is detecting sound from the mic port. I would put this directly through the headset but that port is being used by my ps3. So I would like a way as I said to stream it through my pc to my headset, and it be great to have an integrated volume option in the sound drop down too. [TV - mic - Ubuntu - headset(optical out)] Ubuntu 13.04 EDIT I found part of a solution. Solution by installing pavucontrol and using "pactl load-module module-loopback latency_msec=1" I can stream the audio through my pc.

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• Resetting network adapter?

  - by Quixo

  I'm running Ubuntu 12.04. I get a strong wireless signal throughout my house, and the wireless symbol in the upper-right-hand corner shows that it's connected. The problem is, occasionally I am unable to access the internet (still having a strong symbol). This happened with Windows 7, too, but running the network troubleshooter fixed it each time. It claimed to be "resetting the network adapter". So, what I need to know is: How do I replicate that process on Ubuntu? Thanks for your help!

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• Linux Mint Maya Freezes

  - by timuçin

  Linux Mint freezes after a couple of seconds the desktop loads, in a way that I have to shut the power in order to reboot; the mouse doesn't move, ctrl+alt+f1 doesn't do anything and I think even the hard disk stops. This doesn't happen every start but when it does happen, I have to start recovery mode and run the option "dpkg", the description is "repair broken packages" or something like that. If I don't do that and start the system normally the samething happens again. I have some clues that might help: The first time I installed Mint I had to install my wireless driver manualy. The system didn't freeze before this but since I installed the driver immediately after the Mint installation that might just easily be a coincidence. Even so after I discovered the dpkg trick, for the first couple of times I did it, I found my wireless driver uninstalled and I had to reinstall it. The thing is I can't be sure that the problem is my wireless driver because the relation is not direct enough. Still letting you know what my wireless apapter might help: Realtek L 8723 The next thing I am going to do is to wait until it happens again and post the system log here.

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