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• Update to kernel 3.12 seems to fail: uname reports old rc7

  - by carlo

  I currently run Xubuntu 13.10 with kernel 3.12 rc7. Today I tried updating to the latest 3.12 kernel (non-rc), but this seems to fail. When installing the image and headers I see the following error passing by: ... run-parts: executing /etc/kernel/postinst.d/dkms 3.12.0-031200-generic /boot/vmlinuz-3.12.0-031200-generichis Error! The dkms.conf for this module includes a BUILD_EXCLUSIVE directive which does not match this kernel/arch. This indicates that it should not be built. ... After rebooting, when I do uname -r or cat /proc/version it tells me that I'm still running on the old rc7 kernel. Since my microphone wasn't working on my Sony Vaio Pro 13 I did download and install the latest ALSA drivers using the oem-audio-hda-daily-dkms package which seem to fix the problem (with the mic). Maybe this has something to do with it? I also tried removing the package using sudo apt-get purge oem-audio-hda-daily-dkms but no success.

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• Freezes when finishing installation of ubuntu 12.10

  - by Leon

  I wanted to install Ubuntu next to my Windows 7 and made a 100GB partition for that. After that I downloaded the Image for burning the installation cd. As soon as I started to boot from that DVD, my computer made some crackling noises and then froze completely. I had to press the power button in order to shut it down. After that I decided to download the Installer Version for Windows and startet installing it on the E:\ partition named Ubuntu. So far so good, the installer finished and told me to restart my computer. I did that and Ubuntu wanted to finish the installation. As soon as that started, the computer made some crackling noises again and froze completely. Then I tried the Safe Graphics option, or whatever it is called, and it froze again. I would really like to have Ubuntu installed on my system, because I like it. My computer components are the following: Mainboard: Gigabyte X58-USB3 Processor: Intel Core i7 960 RAM: 8GB 2000Mhz Graphicscard: NVidia Geforce GTX 570 HDD: 1 TB 7200rpm with 3 partitions(100GB W7, 100GB Ubuntu, 800GB Data)

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• Creating properly aligned partitions on a replacement disk

  - by Marius Gedminas

  I've a typical small office server with two hard disks configured for RAID-1 (mirroring). Each disk has several partitions: one for swap, the others paired in several /dev/mdX arrays. Every couple of years one of the disks dies and is replaced. The replacement typically goes something like this: # copy partition table from the remaining good disk to the empty replacement disk # (instead of /dev/good_disk and /dev/new_disk I use /dev/sda and /dev/sdb, as appropriate) sfdisk -d /dev/good_disk | sfdisk /dev/new_disk # install boot loader grub-install /dev/new_disk # create swap partition reusing the same UUID, so I don't need to edit /etc/fstab mkswap /dev/new_disk1 -U xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx # hot-add the new partitions to my RAID arrays mdadm /dev/md0 -a /dev/new_disk2 mdadm /dev/md1 -a /dev/new_disk5 mdadm /dev/md2 -a /dev/new_disk6 mdadm /dev/md3 -a /dev/new_disk7 mdadm /dev/md4 -a /dev/new_disk8 The disks were originally partitioned with cfdisk back in 2009, and so the partition table is aligned traditionally to cylinder boundaries (255 heads * 63 sectors). This is not the optimum configuration for new 4K-sector drives. My question is: how can I create a set of partitions for the new disk and ensure they're properly aligned, and have correct sizes for my RAID arrays (rounding up is acceptable, I suppose, but rounding down is definitely not)?

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• korgac - init.d kill script on shutdown

  - by Max Magnus

  I'm new to Ubuntu 12.04 and Linux and my English is not the best, so I'm sorry for incorrect or stupid questions. I've installed KOrganizer and to start the reminder when I boot the system, I added the korgac command to the autostart. This works fine. But now, every time I want to reboot or shutdown my system, there appears a message that tells me that an unknown process is still running... so I have kill it manually before reboot/shutdown. I knew that it is the korgac process that causes this problem, so I decided to create an init.d script. I've created a script, put it into init.d, and created 2 symbolic links: to rc0.d and to rc6.d. The name starts with K10script... (I hope it is correct so). K10korgac_kill: #! /bin/sh pkill korgac exit 0 Unfortunately this wasn't able to resolve my problem. Maybe my script is wrong. I hope someone can help me. Thanks for your time Max

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• The Raspberry Pi Now Has Its Own App Store

  - by Jason Fitzpatrick

  Raspberry Pi, the credit-card sized computer with an ARM processor, now has its own appstore where Raspberry Pi hobbyists and developers can share their creations in a one-stop location accessible to all Raspberry Pi users. In today’s press release about the store, the Raspberry Pi Foundation writes: We’ve been amazed by the variety of software that people have written for, or ported to, the Raspberry Pi. Today, together with our friends at IndieCity and Velocix, we’re launching the Pi Store to make it easier for developers of all ages to share their games, applications, tools and tutorials with the rest of the community. The Pi Store will, we hope, become a one-stop shop for all your Raspberry Pi needs; it’s also an easier way into the Raspberry Pi experience for total beginners, who will find everything they need to get going in one place, for free. The store runs as an X application under Raspbian, and allows users to download content, and to upload their own content for moderation and release. At launch, we have 23 free titles in the store, ranging from utilities like LibreOffice and Asterisk to classic games like Freeciv and OpenTTD and Raspberry Pi exclusive Iridium Rising. We also have one piece of commercial content: the excellent Storm in a Teacup from Cobra Mobile. For more information about the store, including how to install the app store on your Pi, check out the full press release here. To get started browsing the store, hit up the link below. Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• Lightest weight ubuntu desktop for text editing in big terminal windows?

  - by Kevin Pauli

  I have an older windows laptop onto which I'm installing ubuntu within a VM. My goal is just to use terminal-based linux tools such as vim and shell scripting. I don't give a hoot about any gui for this box. So I first installed ubuntu minimalcd and chose "Basic Ubuntu Server". Upon boot, the text-based terminal came up and I logged in, but the problem is it only gives me 80 columns. I want to do terminal mode vim but have a couple hundred columns to take advantage of my large monitor. If you happen to know how to do that, please see my question here . This post is assuming that the other question is not answerable, and that I will need a desktop to get more than 80 columns in a terminal window. So if that is the case, I want the lightest weight one possible, because this is older hardware and all I want is the ability to have nice big text-based terminal windows for editing text. From the ubuntu minimal CD, I see options for Edubuntu, Kubuntu, etc. Which one of the available desktops would be a good choice for my needs?

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• [MINI HOW-TO] Repair Missing External Hard Drive Database Error in WHS

  - by Mysticgeek

  If you’re using external hard drives with your Windows Home Server, they might get unplugged and create an error. Here we look at running the Repair Wizard to quickly fix the issue. If an external drive that is included in your drive pool becomes unplugged or loses power, you might see the following error under Home Network Health when opening the WHS Console. To fix the issue verify the drive has power and is plugged in correctly and click Repair. The wizard launches and you’ll need to agree that you may lose data during the repair of the backup database. In this example it was a simple problem where an external drive became unplugged from the server…so you can close out of the wizard. If you look under Server Storage you can see the drive is missing…To fix the issue verify the drive has power and is plugged in correctly. WHS will add the drive back into the pool and when finished you’ll see it listed as healthy and good to go. Using external drives that are part of your storage pool may not be the best way to have your home built WHS setup, but if you do, expect occasional errors such as this. Similar Articles Productive Geek Tips Find Your Missing USB Drive on Windows XPFixing "BOOTMGR is missing" Error While Trying to Boot Windows VistaSpeed up External USB Hard Drives in Windows VistaRebit Backup Software [Review]Troubleshoot Startup Problems with Startup Repair Tool in Windows 7 & Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips HippoRemote Pro 2.2 Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Know if Someone Accessed Your Facebook Account Shop for Music with Windows Media Player 12 Access Free Documentaries at BBC Documentaries Rent Cameras In Bulk At CameraRenter Download Songs From MySpace Steve Jobs’ iPhone 4 Keynote Video

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• winusb formatting and installation error, lost data storage on 32gb flash drive

  - by Cary Felton

  i recently purchased a pny brand 32gb usb drive to use for configuring a dual boot on my computer, and for hdd files backup. i also recently installed zorin os 6.1 as my main os, and then downloaded winusb for linux, and set it to install the iso for windows 8 release preview as the activation code is still good untill jan.2013, and there was an error on the installation. i rebooted the computer, plugged in the usb drive, and i went from 32gb usable space to somehow having a partitioned drive (mounted as two separate drives) one being 3.7gb, and the other being i believe 25gb or so... i then formatted the drive with gparted back to fat32, and it still read as a windows usb with the installation files on it still? so then i took my usb drive to my library which runs windows 8, i installed bootice, and completely reformatted my usb drive, and somehow it is usable, but still not perfect. it reads i only have 29.9gb usable space... i have already thought of the non usable area, and that doesnt account for this error as when i first bought the drive and plugged it in on linux, it read total drive space was 32.2 and exactly 32 was usable. somehow i am short by 2gb of space which is very critical for what i am doing. i love linux, i only needed windows for bluray playback with daplayer as it wont work well in wine, but if i keep losing space on my usb drives im afraid ill have to switch back. any help would be appreciated as i already visited pny's site, and they have no support for this issue, and im not that fond of partitions, file systems, or formatting.

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• Oracle Systems and Solutions at CloudExpo NY 2012

  - by ferhat

  Oracle's Larry Ellison and Mark Hurd just unveiled industy's broadest cloud strategy on June 6, with services based on industry standards, with 100+ enterprise applications live in the Cloud today!  The broadest strategy to support your journey along the cloud in any path chose, at any pace your business require and need. This is great assurance for your journey into the clouds as it is, at the same time, quite a temptation, don't you think? We will be at the Cloud Expo Conference to take place June 11-14 in New York. Oracle is Platinum Plus sponsor of 10th International  Cloud Computing Conference & Expo 2012 East. Oracle is also glad to offer complimentary VIP Gold Passes to the conference. We wish everyone a great and productive time with all  the fellow cloudsters.  We, the systems solutions group at Oracle, have prepared Oracle Optimized Solution for Enterprise Cloud Infrastructure to help you start your Infrastructure-as-a-Service with ease, confidence, speed, and savings.  In this solution we are now bringing together the power of Oracle Solaris and SPARC T4 servers. We will be at the Cloud Bootcamp on Wednesday June 13th discussing how this combination can maximize return on investment and help organizations manage costs for their existing infrastructures or for new enterprise cloud infrastructure design. We will also be at the Expo floor #511 throughout the Cloud Expo conference. Join us for the keynote, general session, and technical sessions with Oracle: Keynote Session: A Pragmatic Journey to the Cloud , Tuesday, June 12, 2012 General Session: Oracle Cloud - An Enterprise Cloud for Business-Critical Applications , Monday, June 11, 2012 Conference Session: Accelerate Enterprise Cloud Deployment and Gain Total Cloud Control, Monday, June 11, 2012 Conference Session: The Java EE 7 Platform: Developing for the Cloud, Monday, June 11, 2012 Conference Session: Integrating Big Data into Your Data Center: A Big Data Reference Architecture, Monday, June 11, 2012 Conference Session: Borderless Applications in the Cloud with Oracle VM and Oracle Virtual Assembly Builder, Tuesday, June 12, 2012 Conference Session: Building a Private, Public, or Hybrid Cloud? Simplify Your Cloud with Oracle’s Complete Cloud Solution,Tuesday, June 12, 2012 Cloud Boot Camp: Building Private IaaS with Oracle Solaris and SPARC, Wednesday, June 13, 2012

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• PC On/Off Time Charts Windows Uptime; No Logging Necessary

  - by Jason Fitzpatrick

  Windows: PC On/Off Time is a graphical tool that displays your PC’s uptime, downtime, errors, and more all in a clear and portable package. One of the hassles of using logging tools is that you usually have to enable the logging and then wait for results to pile up before seeing anything useful (such as when you turn on the logging on your router). PC On/Off Time taps right into the event logs your Windows PC is already keeping so you get immediate access to your uptime history. If you look at the screenshot above you can see an accurate picture of the last few weeks of uptime on my computer. October 23-24 I didn’t boot down my PC, the rest of the time I hibernated it overnight when I wasn’t using it, November 1st I installed an SSD (you can see the burst of reboots and short uptimes) and then November 9th there was a brief power outage that caused an unexpected stop (the red arrows on the timeline for the 9th). The free version offers a three-week peek back into your uptime history (upgrade to the Pro version for $12.75 or for free using Trial Pay to unlock your completely uptime history).PC On/Off Time is Windows only. PC On/Off Time [via Addictive Tips] Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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• Friday Fun: Building Blasters 2

  - by Mysticgeek

  After dealing with unnecessary spreadsheets and TPS reports all week, it’s time to waste time playing a flash game. Today we take a look at Building Blasters 2 where you strategically place explosives to bring down structures. Building Blasters 2 You need to place explosives carefully to clear areas in the red level, keep bystanders safe, and manage your budget. After placing the explosives on the structure, you can set the amount of time that passes before they blow. This comes in handy when you reach advanced levels. When you’re ready to start the demolition click on the Detonate button and watch the buildings fall. If you don’t achieve the objectives, you will get the Demolition Error screen and can replay the level. After you’ve received enough money, you’ll get a message between missions telling you there is enough money to buy items in the shop. You can get enhanced destructive devices such as nitroglycerin, a wrecking ball, call in an air strike and more… If you’re sick of the pointy haired boss dragging you down all week, pretend the structures are the office building and destroy away. Building Blasters 2 is a great way to have fun and let off steam so you can enjoy your weekend. Play Building Blasters 2 For additional fun games to play, make sure and check out the How-To Geek Arcade. Similar Articles Productive Geek Tips Friday Fun: Demolition CityFriday Fun: Cargo BridgeFriday Fun: Portal, the Flash VersionFriday Fun: VehiclesFriday Fun: Play Bubble Quod TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Snagit 10 10 Superb Firefox Wallpapers OpenDNS Guide Google TV The iPod Revolution Ultimate Boot CD can help when disaster strikes Windows Firewall with Advanced Security – How To Guides

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• Accessing host LVM partition from Windows XP through Virt.manager 0.8.5 / Qemu / KVM

  - by Nico de Smidt

  Hi, requested use case is having a Windows XP SP3 guest running in 64bit Ubuntu. (Linux pcs 2.6.35-22-server #35-Ubuntu SMP Sat Oct 16 22:02:33 UTC 2010 x86_64 GNU/Linux) I want this guest to access an LVM LV on the Ubuntu disk. I've setup the following LVM config: --- Logical volume --- LV Name /dev/storage/sdc1 VG Name storage LV UUID Zg5IMC-OlqB-prL5-fgg4-3A9A-OgKP-oZ0QkJ LV Write Access read/write LV Status available # open 0 LV Size 1.01 GiB Current LE 259 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 251:3 -- 1) I've setup a storage pool for /dev/storage 2) I've mkfs.vfat /dev/storage/sdc1 3) and made a virtual IDE disk in the virt-manager setup for the guest. Target device: IDE Disk 2 Source path: /dev/storage/sdc1 -- Now when running XP (guest) Windows sees a new disk in Disk Manager and want's to install a partition on it, since it believes the drive is empty. After formatting from within Windows I can put data on the new disk volume. -- Back in Ubuntu however I cannot access this this any more since it created a partition within an LVM Logical Volume. Running fdisk -l shows the following: root@pcs:/media# fdisk -l /dev/storage/sdc1 Disk /dev/storage/sdc1: 1086 MB, 1086324736 bytes 32 heads, 63 sectors/track, 1052 cylinders Units = cylinders of 2016 * 512 = 1032192 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x8d72e4f4 Device Boot Start End Blocks Id System /dev/storage/sdc1p1 1 1050 1058368+ c W95 FAT32 (LBA) -- which seems fine to me, but when trying to mount /dev/storage/sdc1p1 I get the following error: mount /dev/storage/sdc1p1 /media/xp mount: special device /dev/storage/sdc1p1 does not exist which makes sense since in lvdisplay sdc1p1 does not exist Main question: I want to mount the vfat partition in both Ubuntu and XP What am I missing here????? regards, and thanks for your consideration. Nico

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• The Mystery of the Vanishing Disk Space

  - by Oddthinking

  My disk space is dwindling by about 2GB a day! I only have a few more days before I run out of space. $ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda4 143G 126G 11G 93% / udev 491M 4.0K 491M 1% /dev tmpfs 200M 696K 199M 1% /run none 5.0M 0 5.0M 0% /run/lock none 499M 144K 499M 1% /run/shm /dev/sda2 1.9G 580M 1.2G 33% /tmp /dev/sda1 92M 29M 58M 33% /boot I have been searching for the biggest directories/log files, deleting and compressing. But I am still losing the war. Finally, I realised I have a big misunderstanding: julian@server1:~$ sudo du -h / | tail -n 1 16G / All of my files in / only add up to 16 GB. That leaves 110 GB unaccounted for! Clearly I have a misunderstanding: I thought the '/dev/sda4' line represented all the files visible from '/'. What should I be reading to understand where the other storage has gone? More details: I have an Ubuntu 11.10 server, that was set-up by data-center staff. It is running my own code (which is fairly prolific with log files, but otherwise doesn't store much stuff on the drive) duplicity for backups (which tends to store a lot of signature files) various other standard services, like Apache, nagios, etc. They are very lightly used. It has been up for about 4 months without a reboot. I lied about the du output (simplified it for effect). It also complained about not being able to access GVFS and the du processes's own resources. I believe they are irrelevant: . du: cannot access `/home/julian/.gvfs': Permission denied du: cannot access `/proc/10841/task/10841/fd/4': No such file or directory du: cannot access `/proc/10841/task/10841/fdinfo/4': No such file or directory du: cannot access `/proc/10841/fd/4': No such file or directory du: cannot access `/proc/10841/fdinfo/4': No such file or directory

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• External USB Drive

  - by ErocM

  I have a server that I hooked up an external USB drive. It was formatted in windows and has files on it already. I'm new to Ubuntu so please be patient... I have two questions: Will Ubuntu see the drive since it was formatted in windows? How do I mount this drive or rather, how do I know it's seen by Ubuntu? Thanks! I did fdisk -l and this is what I have but I don't see it. It's a 1tb drive: Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0001eb47 Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 625141759 312320001 5 Extended /dev/sda5 501760 625141759 312320000 8e Linux LVM Disk /dev/sdc: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sdc doesn't contain a valid partition table Disk /dev/sdb: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sdb doesn't contain a valid partition table Disk /dev/mapper/ubuntu-root: 316.6 GB, 316577677312 bytes 255 heads, 63 sectors/track, 38488 cylinders, total 618315776 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/ubuntu-root doesn't contain a valid partition table Disk /dev/mapper/ubuntu-swap_1: 3217 MB, 3217031168 bytes 255 heads, 63 sectors/track, 391 cylinders, total 6283264 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 this is an external USB hard drive not a thumb drive :)

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• Encrypted home breaks on login

  - by berkes

  My home is encrypted, which breaks the login. Gnome and other services try to find all sorts of .files, write to them, read from them and so on. E.g. .ICEauthority. They are not found (yet) because at that moment the home is still encrypted. I do not have automatic login set, since that has known issues with encrypted home in Ubuntu. When I go trough the following steps, there is no problem: boot up the system. [ctr][alt][F1], login. run ecryptfs-mount-private [ctr][alt][F7], done. Can now login. I may have some setting wrong, but have no idea where. I suspect ecryptfs-mount-private should be ran earlier in bootstrap, but do not know how to make it so. Some issues that may cause trouble: I have a fingerprint reader, it works for login and PAM. I have three keyrings in seahorse, containing passwords from old machines (backups). Not just one. Suggestion was that the PAM settings are wrong, so here are the relevant parts from /etc/pam.d/common-auth. # here are the per-package modules (the "Primary" block) auth [success=3 default=ignore] pam_fprintd.so auth [success=2 default=ignore] pam_unix.so nullok_secure try_first_pass auth [success=1 default=ignore] pam_winbind.so krb5_auth krb5_ccache_type=FILE cached_login try_first_pass # here's the fallback if no module succeeds auth requisite pam_deny.so # prime the stack with a positive return value if there isn't one already; # this avoids us returning an error just because nothing sets a success code # since the modules above will each just jump around auth required pam_permit.so # and here are more per-package modules (the "Additional" block) auth optional pam_ecryptfs.so unwrap # end of pam-auth-update config I am not sure about how this configuration works, but ut seems that maybe the*optional* in auth optional pam_ecryptfs.so unwrap is causing the ecryptfs to be ignored?

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• Ask The Readers: How Do You Camouflage Your Tech?

  - by Jason Fitzpatrick

  We love having a technology-packed house as much as the next geek, but not all our gizmos, gadgets, and peripherals are exactly Home and Garden approved. How do you enjoy all your tech without your living room and office looking like an electronics store? Image courtesy of Weekly Geek’s DIY charging station tutorial. Whether it’s to hide the insanely intense LEDS, minimize the visual clutter, or to boost the wife/husband acceptance factor of your geeky hobbies higher, there’s a variety of reasons for wrangling cables, hiding routers, or otherwise camouflaging your gear. This week we want to hear all about your tips for hiding or otherwise minimizing the appearance of gear around your home, office, and other personal spaces. Sound off in the comments with your best tips, trick, and camouflaging techniques; check back in on Friday for the What You Said roundup. HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization HTG Explains: What Is RSS and How Can I Benefit From Using It?

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• Fiber-Optic Cable Trick Brings Remote Triggering to Older Flashes

  - by Jason Fitzpatrick

  Many older flashes lack for a jack to input a sync cable and rely exclusively on a simple slave mode triggered by the primary flash. This hack uses a piece of scrap fiber optic cable to trigger the flash in bright conditions. Using a flash as an optical slave indoors isn’t much of a problem, but if you introduce bright light (such as outdoor lighting conditions), the ambient light can overpower the small on-camera flash and render the optical slave function useless. To overcome this, Marcell over at Fiber Strobe (a blog dedicated to cataloging experiments in incorporating fiber optics into photography) came up with a simple work around. By using some foam crafting materials and tape, he whipped up a simple mount for a strand of scrap fiber optic cable to connect between the on-camera flash and the sensor on the slave flash. Once attached it works exactly like as sync cable would, except it’s transmitting a pulse of light instead of a pulse of electricity. Hit up the link below for more pictures and a build guide. DIY Fiber Sync Cord [via DIY Photography] HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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• Dummy output after upgrade from 12.04 to 12.10, even though sound card is detected

  - by user115441

  So I just recently upgraded my system from Ubuntu 12.04 to 12.10. However, when I booted into 12.10 for the first time, no sound comes out of my speakers. I checked the sound settings and the Dummy Output was the only thing showing up. I used "hwinfo --sound" to check to see if my sound card was actually installed, and it was installed. hwinfo --sound hal.1: read hal dataprocess 2687: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/dbus-errors.c line 282. This is normally a bug in some application using the D-Bus library. libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files 11: PCI 1b.0: 0403 Audio device [Created at pci.318] Unique ID: u1Nb._aiKlM91Nt0 SysFS ID: /devices/pci0000:00/0000:00:1b.0 SysFS BusID: 0000:00:1b.0 Hardware Class: sound Model: "Intel 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x2668 "82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller" SubVendor: pci 0x107b "Gateway 2000" SubDevice: pci 0x4040 Revision: 0x04 Driver: "snd_hda_intel" Driver Modules: "snd_hda_intel" Memory Range: 0x50240000-0x50243fff (rw,non-prefetchable) IRQ: 44 (91 events) Module Alias: "pci:v00008086d00002668sv0000107Bsd00004040bc04sc03i00" Driver Info #0: Driver Status: snd_hda_intel is active Driver Activation Cmd: "modprobe snd_hda_intel" Config Status: cfg=new, avail=yes, need=no, active=unknown I'm not sure what to do here. The only time the sound will actually work is when I boot into my Windows partition and then reboot into Ubuntu. I mean I don't want to have to do that every time I want to use Ubuntu. I would really appreciate any help I can get on here.

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• Amazon Upgrades FreeTime; More Content for the Kid-Friendly Walled Garden

  - by Jason Fitzpatrick

  Earlier this year Amazon introduced FreeTime, a walled garden area intended to provide a kids-only app gallery on the Kindle Fire. It was up to parents to populate the content but now, with the recent update, Amazon brings together unlimited books, movies, games, and apps. Intended for children ages 3-8 the upgraded service eschews the you-pick-it-all approach and goes with a hand-curated collection of games, educational apps, books and more. In addition to the pile of hand-curated content, FreeTime also has built in time limits and individual profiles for different children. Every Kindle Fire, Kindle Fire HD, and Kindle Fire HD 8.9″ user can try out the service for thirty days without charge. After the thirty day trial the subscription price is $4.99 per month ($2.99 for Prime members). Hit up the link below to check out the full description of the service. Amazon FreeTime [Amazon] Our Geek Trivia App for Windows 8 is Now Available Everywhere How To Boot Your Android Phone or Tablet Into Safe Mode HTG Explains: Does Your Android Phone Need an Antivirus?

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• Installation Problems & Antivirus

  - by Sagar Walvekar

  We have just migrated our systems from Windows to Ubuntu. We have more than 50 systems previously running Windows XP & Windows 7. After the release of 12.04 we decided to switch to Ubuntu. While we were installing Ubuntu 12.04 on Pentium 4 systems we have faced some issues. We tried it with a USB flash driver & CD. The typical configuration of the system is as follows: Pentium 4 with HT & 512 MB RAM, 40/80 GB IDE / SATA HDD. In windows there were several partitions and data on all the drives in all the systems. We have addressed this by taking backup of the C: drive on other drives & while installing Ubuntu we have just deleted & the C drive & recreated Linux partitions as follows - /root , /Boot, /Home & Swap.(in 10 GB) The problem is that the Linux gets installed without any error. However when I restart the system after the installation the system hangs in while detecting the HDD in BIOS and the system fails to start until I remove the HDD. When I installed the previous Ubuntu version it worked fine, without any hassle. Also if we install Ubuntu 12.04 on same HDD on any other higher capacity system & reconnected to old system it works fine. How can I fix this problem? Also, is there is any Antivirus which will give me real time protection on ubuntu 11 & higher versions with both 32 & 64 Bits?

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• Copying files to Truecrypt file container hangs

  - by Wagner Maestrelli

  I have a dual boot installation with Windows 7 Ultimate (32-bits, NTFS file sytem) and Ubuntu 10.10 (32-bits, ext4 file system). I have installed the version 7.0a of Truecrypt in both Operating Systems. Located in the Windows 7 HDD I have a 150 GB encrypted file container. It is a standard and dynamic file container, which means it's not hidden and uses a sparse file. This file was created using the Windows version of the Truecrypt program. When I logon in Windows the container is mounted as the drive E: and everything works fine! In Ubuntu the Windows's NTFS file system is automaticaly mounted after I logon. I've configured that using the ntfs-config package. In my ~/.profile I have this line to mount the truecrypt's file container: truecrypt /media/7EDEBCFADEBCABB1/Users/Wagner/hd/hd.tc /media/truecrypt1 The file container is mounted after the logon without any problem. I can access it, copy files to/from it, etc. But when I try do copy relatively large amounts of data (~50 MB) to it via nautilus or cp -R, it starts the copy, copies some data until certain point and then it just hangs! The progress bar does not move anymore and nothing happens. There is no error, it just hangs and that's it. I have to kill the process myself. This problem does not happen in Windows: I can copy very large amounts of data to the container and it works great. But in Ubuntu the problem always happens! I mean, whenever I try to copy a bunch of files together the copy process hangs. Does anyone ever faced this problem? Can anyone help? Thanks!

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• Try out ubuntu on thinkpad x40 (via usb)?

  - by Oliver

  I am trying to try out ubuntu (i,e, install it within windows) on my thinkpad x40. I followed the instructions on how to create a bootable usb (http://www.ubuntu.com/download/ubuntu/download). No problem. The issue I have now is that th eusb ports on my x40 were burned before (common problem with the machine), i.e. do not work. So I got a USB notebook card from belkin. However it does not seem to recognize the usb stick from bios, thus I cannot boot from it. I also do not have a cd rom. Then tried to run wubi from the usb stick, briefly appears in task manager, no further action. So I tried it with wubi.exe, but same thing. Downloaded it to desktop, run it, briefly appears in the task manager under processes, no further action. Any one idea? I have enough memory and enough freed hd space. Thanks. Oliver

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• How do I transition from WUBI to a native installation?

  - by Sammy Black

  I have Ubuntu 10.04 Lucid installed through wubi on my laptop (it came with Windows 7 preinstalled). This was my first foray into Linux, and I'm here to stay. I have no use for Windows, and yet I must manually choose not to boot into it! Should I shrink the Windows partition to something negligible and grow the Linux one using something like gparted or fdisk, and just be content that everything runs? In that case, I need to understand the filesystems. Which is which? Here's the output of $ df -h: Filesystem Size Used Avail Use% Mounted on /dev/loop0 17G 11G 4.5G 71% / none 1.8G 300K 1.8G 1% /dev none 1.8G 376K 1.8G 1% /dev/shm none 1.8G 316K 1.8G 1% /var/run none 1.8G 0 1.8G 0% /var/lock none 1.8G 0 1.8G 0% /lib/init/rw /dev/sda3 290G 50G 240G 18% /host I would prefer to start over with a clean install of 10.10 Maverick, but I fear what I may lose. Certainly, I will backup my home directory tree (gzip?), but what about various pieces of software that I've acquired from the repositories? Can I keep a record of them? By the way, I asked a similar question over on Ubuntu forums.

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• Ubuntu 12.04 - Brightness controls not working

  - by Juan Manuel Zolezzi Volpi

  Controls from "Brightness and Lock" were not working so I've tried a solution that involved changing grub, which I'm detailing below: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX="quiet splash acpi_backlight=vendor" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" After doing this, the brightness control dissapeared like you can see at http://screencloud.net/img/screenshots/6b90d56604b70cc749a632d0bc005a20.png Any ideas? Would love to be able to configure Brightness or even use apps like F.lux to regulate it automatically. Edit: I've modified the following line to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=" and now the brightness controls are back, but whatever I change the brightness remains the same. Just in case I'm using Intel H77

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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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