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  • failing to boot after ''succesfully'' restoring from deja dup backup

    - by Jake
    Before upgrading to 12.04, I completely backed up 11.10 oneiric with deja-dup. In 12.04 I had major nvidia-related problems, so I decided to roll back to 11.10. I tried to restore from the backup and at first failed several times with "an uknown error occured". I reformated my hard drive, installed a fresh copy of 11.10 on the hard drive, and tried the restore again, with no success. I then booted from a live usb and ran the restore again after mounting the file system. I chose the restore location to be "file system" and the restore completed successfully, or so it said. After restarting my PC, all I got was a 'no operating system' error. I remounted my partition chrooted and installed the kernel. I am working now but my question concerns the restore. Why didn't the restore worked? I'm hoping someone has thought of something that I have not.

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  • How do I stop Ubuntu Precise freezing/hanging

    - by artfulrobot
    At least once a day I lose work on my (2 different) Intel i5 machines running Ubuntu 12.04. The entire system will freeze/lock-up/hang, and never return. At this point nothing works; even the caps lock key doesn't toggle the light on the keyboard; Ctrl-Alt-F1 won't do anything either. askubuntu.com is apparently where I'm directed for support. I suspect this is a kernel bug. But I simply can't keep losing work like this, so I'm anxious to try whatever it takes to get the thing reliably working. Can you suggest something I can try to fix the problem an existing bug I can follow progress on and contribute to (from users/tester's POV) the most constructive way I can contribute to helping fix the problem, keeping in mind that I do need the computer (so can't do things that might "brick" it!)

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  • How do I create a new usergroup?

    - by Sergiu
    I want to do this because I'm trying to fix user permissions from Ubuntu on my Mac OS X partition and Ubuntu doesn't have the "wheel" group that I so desperately need! Please don't trash me for this but I set my whole Mac OS X partition to give read and write access to everyone so I could access and modify everything on it from my dual-booting Ubuntu OS, and now everything is screwed... I don't have the original Mac OS X installation DVD and booting a Mac OS X 10.5.6 DVD gives me kernel panics... The OS installed on that Mac partition is 10.4.11. Is there any hope for me to ever fix it? I don't have money to buy utilities, and I can't use AppleJack either because my permissions are so messed up... None of the posted answers are what I wanted to do. I wanted to add fields to a user that was on my Mac partition, not a user part of the Ubuntu groups. Is that possible?

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  • Reading cpu temperature Intel Celeron (R) with lm-sensors

    - by tim_a
    I know there are already a lot of questions like this, but non of the answers provided there could fix my problem. I try to read out my cpu temperature with lm-sensors on my ubuntu 10.04 LTS installation but I can't get to work. I did try the command sensors-detect several times but still nothing. My computer is an old PC with an Intel Celeron (R) @ 2.60 GHz. The odd thing is that the hdd temp is shown in the applet but when I type in the terminal sensors I get the error: "No sensors found! Make sure you loaded all the kernel drivers you need." I'm not really interested in the hdd temperature but I think it is strange that these sensors do work in the applet and not in the terminal. This is the output that sensors-detect gives: http://pastebin.com/F4hVKaLU Any suggestions?

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  • HP mini 5102 Ethernet does not work after suspend on Lubuntu 12.10

    - by Marcin
    Ethernet works fine after system is rebooted The onboard card is seen in 'lspci' as: 43:00.0 Ethernet controller: Marvell Technology Group Ltd. Yukon Optima 88E8059 [PCIe Gigabit Ethernet Controller with AVB] (rev 11) After system being suspended the sky2 driver loads but does not enable the NIC. I have noticed that it happens when PC is left suspended for longer period of time (few houres) Trying to reproduce it I have tried to load the sky2 driver with 'modprobe sky2'. Unfortunately typing 'ifconfig -a' for the onboard ethernet adapter does not list the driver once the sky2 driver is loaded. I have searched internet and I found some information about a bug in kernel. Hovewer it was reported in 2010 so I hope it has been fixed. Here it is http://lists.opensuse.org/opensuse-bugs/2010-02/msg01473.html

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  • What companies do what I'm interested in?

    - by Alex
    I'm a systems guy. People change their concentrations to avoid taking operating systems, while I took it during my first semester after transferring. I'm taking compilers and networks now, and I think they're awesome. And yet there are so many job postings looking for people to do work in things like web development, and so few postings looking for people to work in kernel hacking or network engineering. What sorts of companies do these things? I'm currently awaiting a contract in the mail for an internship with VMWare, so I'm not out of a job for the summer. Still, I'd like to companies do these things.

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  • Why has wireless disappeared after my 12.10 upgrade?

    - by Shay Guy
    I just upgraded to 12.10 on my Lenovo B570 laptop. NetworkManager isn't displaying a submenu for wireless connections at all, even though I downloaded the update through the wireless connection. This displeases me. Stuff I've tried includes: $ sudo modprobe wl FATAL: Module wl not found. $ sudo lspci -nn | grep "BCM" 02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01) $ rfkill list all 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no ETA: linux-headers-generic is already the newest version, and what I get when reinstalling bcmwl-kernel-source includes the following, near the end. DKMS: install completed. ERROR: Module b43 does not exist in /proc/modules ERROR: Module b43legacy does not exist in /proc/modules ERROR: Module ssb does not exist in /proc/modules ERROR: Module bcm43xx does not exist in /proc/modules ERROR: Module brcm80211 does not exist in /proc/modules ERROR: Module brcmfmac does not exist in /proc/modules ERROR: Module brcmsmac does not exist in /proc/modules ERROR: Module bcma does not exist in /proc/modules FATAL: Module wl not found.

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  • Gnome-shell video freeze

    - by josephsmendoza
    So i have a 14.04 Ubuntu Gnome Live USB on my 16GB USB 3.0. It runs fine except sometimes it the screen will freeze, but I know stuff is still happening cause I can hear media playing. I did a little digging and i'm still not sure why, can someone help? Sorry if i don't provide enough details. ubuntu-gnome@ubuntu-gnome:~$ lspci -nnk | grep -iA2 VGA 03:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400}[10de:0867] (rev b1) Subsystem: Apple Inc. iMac 9,1 [106b:00ad] Kernel driver in use: nouveau

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  • Trying to update Asus BIOS: FreeDOS crashes

    - by ZekeDroid
    My UX31 zenbook is experiencing some weird shutdown behavior when the battery drops below 50% and the internet seems to agree that updating the BIOS is a good step forward since there were issue with the kernel before. I downloaded both the correct BIOS file and the windows 7 utility tool and now need to boot FreeDOS to run, however, I've tried every method out there and they all fail (or so I think): Using unetbootin's FreeDOS 1.0 image I get to an error saying it couldn't run drivers then I get to a command line on disk A:. I assumed a dead end. Using unetbootin but with the FreeDOS 1.1 version image downloaded directly: get an error of "bad or missing command interpreter". I looked online and the solutions didn't work either. So, is there an alternative to FreeDOS or to installing a BIOS that I could use?

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  • Semi-transparent parts of theme show as full white

    - by Kilian
    I am running ubuntu 10.04 64bit on a macbook pro, using the nvidia-drivers version 260.19.29. As of a recent kernel update, all the semi-transparent parts of my theme show as full white. This means: no gradients on scrollbars and buttons, 'inverted' dividers in context menu's, full white gnome-do panel etc. Does anyone know what causes this and how I can fix it? Screenshot examples below. Scrollbars: Gnome-do: 'inverted' dividers in the context menu: (Last two links are not links due to not having sufficient points)

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  • How can I install ATI Catalyst Video driver of Ubuntu 12.04.3?

    - by Eastsun
    EDIT My computer is Thinkpad E420 with Intel HD3000 and ATI 6630m. I have reinstalled my Ubuntu12.04.3 yesterday. I had successfully installed Ubuntu and ATI Catalyst Video driver many times about half year ago following these links: How do I get AMD/Intel Hybrid Graphics drivers to work? What is the correct way to install ATI Catalyst Video Drivers (fglrx)? However, this time I have no luck with installing ATI Catalyst Video driver. I have tried version 13.4, 13.1, 12.8 of ATI Catalyst Video driver. It seemed that 13.4 doesn't support 12.04 any more, following this link , the lowest Ubuntu version supported by ATI 13.4 is 12.10 and for the reset of the ATI drivers, the kernel version and xorg version of Ubuntu 12.04.3 is too high to be supported. So, should I stay on ubuntu 12.04.1 with ATI 12.8, or there is any way to install ATI driver on Ubuntu 12.04.3?

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  • Are there jobs which are oriented towards optimisation programming or assembly

    - by jokoon
    3D engine programmers have to care a little about execution speed, but what about the programmers at ATI and nVidia ? How much do they need to optimize their driver applications ? Are there jobs out there who only purpose is execution speed and optimisation, or jobs for people to program only in assembly ? Please, no flame war about "premature optimisation is the root of all evil", I just want to know if such jobs exists, maybe in security ? In kernel programming ? Where ? Not at all ?

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  • How do I get my RTL8192ce based wireless device working properly?

    - by JonnyTruelove
    I am using the rtl8192cu chipset (on a Belkin wireless USB adapter N300) combined with 64 bit architecture and the 3.8 kernel. Some of you may know that this doesn't work. I tried this fix - RTL8188CU USB Network Adaptor on ubuntu 13.04 and now my internet is super slow. I am totally new to Ubuntu and I am concerned I do not have the right driver. The "stock" driver was the RTL8192cu, but it didn't connect 99% of the time and if it did the upload speed was higher than the download. Right now I am connecting through my laptop with a crossover cable, so my internet connection is just fine in my apartment. Relevant output from lsusb is here: Bus 002 Device 002: ID 050d:2103 Belkin Components F7D2102 802.11n N300 Micro Wireless Adapter v3000 [Realtek RTL8192CU] (bonus question: is that [050d:2103] the actual physical address straight from the hardware? Or does it change when I put different drivers on it? I am concerned I do not have the right driver)

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  • LinuxCon North America 2014

    - by Chris Kawalek
    As the first day of LinuxCon North America 2014 draws to a close, we want to thank all the folks that stopped by our booth today! If you're at the show, please stop by our booth #204 and have a chat with our experts. And you won't want to miss these Linux and virtualization related sessions coming up tomorrow and Friday: Thursday Aug 21 - Static Analysis in the Linux Kernel Using Smatch - Dan Carpenter, Oracle Friday Aug 22 - The Proper Care of Feeding of MySQL Database for Linux Admins Who Also Have DBA duties - Morgan Tocker, Oracle Friday Aug 22 - Why Use Xen for Large Scale Enterprise Deployments, Konrad Rzeszutek Wilk , Oracle We look forward to meeting with you and we hope you enjoy the rest of LinuxCon North America 2014! 

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  • How to setup whole-disk encryption with dual boot on a MacBook Pro (generation 9,2 with 12.04)

    - by blueyed
    I can install Ubuntu 12.04 on the MacBook when using the "noapic" kernel boot option, using the alternate amd64+mac image (from http://cdimage.ubuntu.com/releases/12.04/release/ ). But after installation the screen turn sblack after trying to boot "Windows" (as named in the boot menu that shows up when holding Option/Alt during startup). I want to use whole-disk encryption and given that only one free partition is available, I have setup LVM to do so: - vg0 contains bootlv and cryptlv - in cryptlv I have setup encryption with another LVM volume group (vg1, which holds swaplv, rootlv and homelv) I have not installed Grub during installation (because I was not sure about the partition) and when trying to install it later on /dev/sda4 (which contains the outer LVM) it complained that it could not determine the file system, and --force did not help either. The black screen / behavior looks similar to starting the installer without enabling the noapic option.

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  • Booting from Live USB leads to command line instead of menu

    - by Alek
    I'm trying to install 12.04 x64 from a USB stick. I created the Live USB as per instructions from ubuntu.com, however, after choosing to boot from USB I get stuck with a command line, titled GRUB. When I type "install", it replies that "no kernel is loaded". On my other PC everything is fine, the Live USB boots just fine. The one I'm trying to install to has UEFI mobo - maybe that's the problem? However, fiddling with UEFI settings in mobo setup (UEFI/Legacy) has no visible effect.

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  • files power_profile and power_method missing on ubuntu 12.04 after clean isntall

    - by Nikola
    OK here is the problem,I am using gnome-shell, ubuntu 12.04, kernel 3.2.0-32-generic-pae and the proprietary drivers for my ati card (Installed via "additional drivers") , the laptops is a hp 4310s probook and i want to control the power_profiles and power_method , because my GPU temp is high. before i reinstalled ubuntu 12.04, i used the .sh method on startup to write to those files, and everything worked like a charm, but now they are missing, and i can't create them.this is what i get when i try to create the directories mkdir: cannot create directory `/sys/class/drm': No such file or directory How can i can get them back?if you need some information , just ask and i will give it.

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  • failure to upgrade to 13.10 on ASUS 1015E-DS03

    - by user211270
    How should I proceed? On my last step to reach 13.10, after the download and installation and removal of unwanted packages, and after the reboot, I received this message: Sorry, a problem occurred while installing software. Package: i915-dkms The details revealed: Package i915-dkms 0.1 [origin: unknown] Problem Type Package Title i915-dkms 0.1: i915 kernel modele failed to build ApportVersion 2.12.5-0ubuntu2.1 Architecture amd64 DKMSBuildLog DKMSKernelVersion 3.11.0-12-generic Date Sun Nov 3 19:49:38 2013 Dependencies DistributionChannelDescriptor This is a distribution channel descriptor For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-annan-standard-precise-amd64-20130106-0 DistroRelease Ubuntu 13.10 InstallationDate Installed on 2013-01-24 (283 days ago) Thanks for any help, Bob Pendleton

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  • NDIS Driver Filter VS API Hooking

    - by Smarty Twiti
    I've seen many developers asking for "How to intercept in/out HTTP packets ", "How to modify them on the fly". The most "clean" answer I've seen is to make a kernel-mode-driver filter from the scratch (TDI for XP and earlier winx9 or NDIS for NT systems). An other way, is to use a user-mode-driver like Windivert, also Komodia has a great solution (without writing any single code). The idea behind this introduction is just I want to know is API Hooking can be considered as alternative of writing of whole of driver-filter? writing a driver from the scratch is not an easy task, why just not Hooking the HttpSendRequest or any other API used by the browser? There are many free/commercial libraries to do this in a safe manner (eg: EasyHook, Mhook, Nektra..). I'm not the first who ask, there already Sockscap that uses Hook(DLL injection) to change behavior to other applications and force them to use a Socks proxy, also Form grabbing attack 'used by keylogger..

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  • Wireless Not Working with Drivers Installed

    - by Haoran
    I'm new to Linux. I installed Ubuntu 12.10 on my old Compaq/Hp Preario V3000 to replace Windows XP. Every thing works fine except I'm getting no wireless network options in the network drop down menu. I'm using a cable at the moment. Wirless chipset is: 05:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01) 08:08.0 Ethernet controller: Intel Corporation PRO/100 VE Network Connection (rev 02) I ran rfkill: 0: hp-wifi: Wireless LAN Soft blocked: no Hard blocked: no I also ran iwconfig and got this lo no wireless extensions. eth0 no wireless extensions. In the additional drivers it says: "Using Broadcom 802.11 Linux STA wireless driver source from bcmwl-kernel-source (proprietary)" Any help to resolve the problem would be greatly appreciated.

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  • Broadcom bcm4311 rev2 Full disabled on battery

    - by Antonio BG
    Ok this is my problem... My problem begins while ago when I installed ubuntu 10.10. (is the same with 11.04,11.10...) My wireless card is disabled if the power cord is unplugged, and the only way to fix this is rebooting my pc WITH the power cord plugged and if I use lspci command, it doesn't show me the wireless card. is like if I've removed the wireless board from my laptop port. I've searched a lot of solutions for bcmw4311 issues, but none of them fix my problem because when apply one of the fixes, if I unplug the cord, my wireless card it just gone away... I have dual boot on my pc(w7,ubuntu), I've tried with full installation just to see if this is the problem, but not, is the same. On windows all work correctly with and without power cord.. so this is not a hardware problem, is more like a kernel problem. anyway I can use wireless with power cord plugged, but c'mon this is a laptop not a desktop pc XD haha any help is welcome

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  • MammothVPS launches Backups, DNS Management and more!!!

    - by stefan.sedich
    Yesterday we launched a bunch of new features over at MammothVPS, - All VPS' now have an on-site, off-server backup facility available to them. By default all customers will have 1 free weekly backup made available to them, and should you wish to you can purchase more slots which are available in daily, weekly and monthly schedules. - DNS hosting has been made available and will be free for all customers. You can find the new interface in your mPanel. - A cleanup of the menu system has been done to make it easier to navigate around both the site and mPanel. - You will find new sections on site, we now have more information about our services and have included things like a Knowledge Base, which will provide information on howto setup various applications on your VPS. - Added the ability to change the kernel your VPS is running on. So head on over to MammothVPS and check it out.

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  • How to fix slow wireless with Intel 4965 AGN? [closed]

    - by mikewhatever
    Possible Duplicate: Slow wireless with an Intel 4965 We run Ubuntu 12.04, 32bit, with the current kernel 3.2.27-generic on an MSI EX700. I've already added the 11n_disable=1 tweek, without whcih, wireless has been unusable. Now, it works OK, but speedtest shows: Windows XP - down 11.68mbps, up 2.07mbps Ubuntu 12.04 - down 2.06mbps up 2.0mbps We've disabled ipv6, tried static and dinamic IPs, tried both swcrypto=0 and swcrypto=1 options, none of whcih made any difference. The problem may be the symptom of high packet loss. For example, here's the output of iwconfig after booting and testing the speeds: wlan0 IEEE 802.11abg ESSID:"amu" Mode:Managed Frequency:2.462 GHz Access Point: 00:78:9E:FA:32:C8 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=58/70 Signal level=-52 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:11 Invalid misc:3627 Missed beacon:0 I've posted a help request before with lots of technical info and outputs.

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  • How to fix Ubuntu 12.04.3 boot to black screen full of errors in white text, after upgrading on dell inspiron 1501

    - by Ibuntu
    I am running a Dell Inspiron 1501 I use Linux only. No Microsoft or Apple operating systems (or really anything closed-source). I've only been using Linux for a little over a year but I'm starting to gain a comfortable level of familiarity with the system and terminology. I've been having some issues with Quantel Quetzal and Raring Ringtail, especially with older hardware, so I opted to install Ubuntu 12.04.3 Precise Pangolin on the Inspiron 1501. I checked my MD5 sum after downloading my ISO and all was good. I have in fact used this iso/dvd to install Precise Pangolin successfully on a few other systems (some of which are even older than this laptop). Install goes fine. The wireless card doesn't work out of the box but this is a known issue which is fairly easy to fix. So, first thing I did was open up a terminal and run sudo apt-get update && sudo apt-get upgrade which, part way through, crashed (I assume lightdm and possibly X) and took me to a black screen filled with white lines of text that were either errors or just the ouputs of commands. The reason I say that is because I was unable to gleam any useful information from the output on the screen. I did take a picture however and will post a link. After that, every time I boot the system it goes right to that black screen posting all the error messages or output in white text. I never get a purple Ubuntu splash, so from what I can tell after reading this wiki article: https://wiki.ubuntu.com/X/Troubleshooting/BlankScreen That means that after the kernel is selected, it is unable to correctly implement the settings it needs. If the purple splash never shows, the frame buffer was never set correctly right? This leads me to believe that it could be a kernel issue? The wiki suggested to try and pinpoint the issue by rolling back kernels until I find one that works. Is this my best option? I think I'm going to give it a try anyways and will let everyone know if I am able to solve the issue this way. I have since done a few reinstalls and some trouble-shooting including a couple hours scouring the net for anyone with any kind of similar issue. Most of the issues I could find involved getting a black screen after login and none of them said anything about any information output on this black screen. My reinstalls have taught me that there is no issue updating, but as soon as I run sudo apt-get upgrade my system goes to the black screen and every time I boot it up it does the same thing. The only way to fix is by reinstall. I never get any ability to log in. After a hard power off to the laptop (because I cannot use ctrl+alt+del to reboot) when it boots again it goes to the grub boot menu and I can select between regular boot, recovery mode and the two memtest options. I never tried the memtest options but the other two both lead to the same black screen. Some people having a black/blank screen issue claim to have fixed it by using 12.10 or 13.04 but I believe they were having a different issue where they got a black/blank screen after logging in. I think I will still give these images a try, but mostly figured I would just wait another day or two for 13.10. Other things I figured I would try from the following three articles: After logging in, there's a black screen and my cursor, nothing else! in Ubuntu 12.10 Black Screen on Login After Upgrading to 12.04 I can't get to the login screen include opening a terminal using ctrl+alt+f1 and trying a variety of reseting unity, x settings, lightdm (or switching to gdm); but I doubt this will work or that I will even be able to access a terminal. I'm pretty sure the whole system is stuck after it loads the last line on the black screen. I will try these things and post more information when I have. Hopefully someone has an idea in the meantime and I will keep checking back trying to find a solution. Thank you. Here are 3 different pictures of the error message. I had to take with my phone: http://ubuntuone.com/album/0TBBkxmVajJIQQtoN9mVdN

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  • Xubuntu all Icons disappeared

    - by user1392185
    I'm running Xubuntu 12.04.1 with kernel Xen4.1-amd64 and the following problem is mine: Nearly all icons have been replaced by the default "no icon available"-icon, even on the login screen and the all icons in software like e.g. Firefox and the icons I manually assigned to launchers, too. Changing the icon theme does not seem to affect this. The only icons that did not disappear are: LibreOffice, gThumb, Simplescan, Ristretto and in the XFCE menu office, tools and graphics. How could I bring the icons back? EDIT: When I tried to use Ristretto the following error showed up: Could not load image-loader module /usr/lib/x68_64-linux-gnu/gdk-pixbuf-2.0/2.12.0/loaders/libpixbufloader-png.so Unable to open shared-object-file I/O error (Had to translate this to English.)

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