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• 12.04 Wi-Fi not working correctly with Intel Pro/Wireless 3945ABG

  - by Jerel

  This is a very strange problem. The only time the Wi-Fi works is when I have the wired connection connected. I have a Dell 6400/e1505 with the Broadcom BCM 4401-B0 internal NIC, and the Intel Pro/Wireless 3945ABG Wi-Fi adapter. I was on 10.0.4 LTS before, and I remember having to screw around to get the Wi-Fi to work, but that was years ago, and now it's acting even stranger than it did back then. If I boot up with the wire connected, the Wi-Fi starts up. If I boot up without the wire connected, the Wi-Fi won't start at all. If after booting with the wire connected, and the Wi-Fi starts up, I then disable the wireless, the wired connection works fine. Without the wire connected, dmesg shows the iwl3945 driver loading and starting with no errors, and the wireless adapter activated. Running rfkill list shows no blocks, but there is no connection to my Wi-Fi. Help! I am more confused than a chameleon in a bag of Skittles.

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• Virtualbox shared folder mount from fstab fails; works once bootup is complete

  - by Ben

  I've got Ubuntu 13.10 installed in Virtualbox 4.3. The host machine is Windows. I have a couple of Virtualbox shared folders being mounted by /etc/fstab. Until recently this setup worked just fine, but after upgrading from Ubuntu 13.04 and Virtualbox 4.2 (at essentially the same time) the fstab mounting stopped working. I get the following error during boot: An error occurred while mounting /home/benme/Documents. keys:Press S to skip mounting or M for manual recovery Pressing M for manual recovery and then trying to mount manually also fails: root@benme-vb:~# cd /home/benme root@benme-vb:/home/benme# mount Documents /sbin/mount.vboxsf: mounting failed with the error: No such device But if I instead skip mounting during boot, wait for Unity to start and then mount manually in a shell, everything works fine: benme-vb ~ % ls Documents benme-vb ~ % sudo mount Documents [sudo] password for benme: benme-vb ~ % ls Documents # actual file list omitted Note that when I mount manually I'm letting mount take all the options from /etc/fstab, and it works. This suggests to me that it's some sort of timing issue, where Virtualbox isn't "ready" to provide the shared file mounts at the point /etc/fstab mounts are run during bootup. Here's the fstab line, just for completeness: Documents /home/benme/Documents vboxsf uid=benme,gid=benme,dmode=774,fmode=664 0 0 Is there something I can do about this from the Ubuntu side? Or does anyone happen to know more about this from the Virtualbox angle? I've found an old report on the Virtualbox bug-tracker with identical symptoms, but in that case the user had updated Virtualbox without updating their guest additions and resolving that fixed the problem; this isn't happening here, I've definitely got the 4.3 guest additions installed.

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• Why does 12.04 upgrade abort with out of space error when I have lots of it?

  - by Kristian Thomsen

  When upgrading Ubuntu from 11.10 to 12.04 I discovered an unexpected problem. The upgrade was stopped because there wasn't enough free space for the installation. I managed to free some space and do the upgrade but now a prompt appears after logging in saying I'm out of space. This prompt asks me if I want to examine the problem. The "Disk Usage Analyser" is opened. In the top it says: Total filesystem capacity: 47.0 GB (used: 13.5 GB available: 33.4 GB) Folder -- Usage -- Size / -- 100% -- 12.5 GB usr -- 44.8 % -- 5.6 GB home -- 30.3 % -- 3.8 GB lib -- 13.0 % -- 1.6 GB var -- 9.1 % -- 1.1 GB boot 2.5 % 309.5 GB and a lot of small contributors like: etc, opt, sbin, bin etc. I do not really understand this problem since the analyser in the top says that I have 33.4 GB left in this file system. What can I do to make Ubuntu use the remaining space? Running df -i in the terminal gives: Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sda7 610800 576874 33926 95% / udev 213451 563 212888 1% /dev tmpfs 218524 486 218038 1% /run none 218524 3 218521 1% /run/lock none 218524 7 218517 1% /run/shm /dev/sda8 2264752 16371 2248381 1% /home The output of df -h Filesystem Size Used Avail Use% Mounted on /dev/sda7 9,3G 7,8G 1,1G 88% / udev 993M 4,0K 993M 1% /dev tmpfs 401M 884K 400M 1% /run none 5,0M 0 5,0M 0% /run/lock none 1003M 152K 1002M 1% /run/shm /dev/sda8 35G 4,0G 29G 13% /home /dev/sda2 101G 64G 37G 64% /media/A2C8E28BC8E25CD3 Running sudo fdisk -l gives Disk /dev/sda: 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: 0x00000080 Device Boot Start End Blocks Id System /dev/sda1 63 96389 48163+ de Dell Utility /dev/sda2 * 98304 210434488 105168092+ 7 HPFS/NTFS/exFAT /dev/sda3 210436094 312576704 51070305+ f W95 Ext'd (LBA) /dev/sda5 306279288 312576704 3148708+ dd Unknown /dev/sda6 210436096 214341631 1952768 82 Linux swap / Solaris /dev/sda7 214343680 233873407 9764864 83 Linux /dev/sda8 233875456 306278399 36201472 83 Linux Partition table entries are not in disk order

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• Plugged in Not Charging.

  - by Eric Johnson

  Suggested steps to fix the nasty Windows power management issue of plugged in not charging. Option 1: Disconnect AC Shutdown Remove battery Connect AC Startup Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Battery listings, and select Uninstall (it’s ok if you only have 1). Shutdown Disconnect AC Insert battery Connect AC Startup Option 2: Turn off laptop. Unplug AC power. Remove battery. Replace AC power. Turn on laptop, allow OS to boot. Once logged in to the machine, perform a normal shut down. Unplug AC power. Replace battery. Replace AC power. Turn on laptop, allow OS to boot. The battery should once again be charging as normal Additional troubleshooting techniques: Check battery charging status in the BIOS Update BIOS Replace Battery (I did this and the new battery is not charging) See if the battery charging light works when the laptop is powered down. Supporting Links: http://jeffreypalermo.com/blog/plugged-in-not-charging-windows-7-solution/ http://social.technet.microsoft.com/Forums/en/itprovistahardware/thread/741398c6-a733-482c-a33c-2b61d9bc2984 http://www.youtube.com/watch?v=6Xf-ipP0wSY&feature=fvw

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• Nexus 7 Possibly Bricked

  - by user214186

  I have a 1st gen Nexus 7 (32GB). I used the steps at https://wiki.ubuntu.com/Nexus7/Installation to successfully install Ubuntu 13.04 desktop onto the tablet. It was working fine and then I decided to upgrade to Ubuntu Touch. I booted the tablet into fast boot mode but the commands 'adb devices' and 'sudo fastboot devices' would not see the device. I am performing these steps from an Ubuntu 12.04 desktop PC. Prior to installing 13.04 the device was seen fine. I made the mistake of performing the 'Device factory reset' step from https://wiki.ubuntu.com/Touch/Install - Step 2. Now when I try to boot the device I get the following: mount: mounting /dev on /root/dev failed: no such file or directory mount: mounting /dev on /root/sys failed: no such file or directory mount: mounting /proc on /root/proc failed: no such file or directory Targe filesystem doesn't have requested /sbin/init. No init found. Try passing init= bootarg. BusyBox v1.20.2 (Ubuntu 1:1.20.0-0ubuntu1) built-in shell (ash) Enter help for a list of built-in commands. (initramfs) I have searched the web but every reference to this problem is from people who still have ADB access to the device so they can recover by flashing the tablet again. I can attach a keyboard to the USB port and access the BusyBox console but I don't know what steps to do to recover from my error. Any suggestions would be helpful. Thanks

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• How to reduce the fan noise and how to increase battery life?

  - by mehdi

  I have a brand new Sony Vaio S series laptop.(VPCSA2DGX) It came factory installed with Windows 7 professional Edition 64bit. Runs Intel core i5, 500 GB HDD , 4GB Ram. First I installed ubuntu 11.10 64 bit along side Windows to dual boot. Later,since the problem did not solve, I installed ubuntu 12.04 64bit along side Windows to dual boot. However the problem keeps annoying me. Problem: When running ubuntu 11.10/12.04, the battery lasts only about 1.5 hours. The Fan runs loud and continuously. And there is a lot of heat generated. System monitor shows less than 5% CPU used. My laptop enjoys hybrid graphic and I tried turning off ADM graphic card and keep Intel graphic card on. However I can not get the Fan noise or heat to go away and consequently the battery drain continues. BTW, in windows, the laptop gives 4-5 hours of battery power, Fan is silent and there is no heat problem. Any ideas on how to reduce the fan noise and how to increase battery life in ubuntu 11.10/12.04?

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• cannot mount root filesystem on 10.04

  - by howaryoo

  I tried to apply the recommendation of question: Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) After running that command: sudo mount --bind /dev /mnt/dev I get this error message: mount: mount point /mnt/dev does not exist fdisk -l returns /dev/sda1 /dev/sda2 /dev/sda5 do I need to mount sda2 and sda5? Edited after @psusi's comment: /dev/sda1 is the boot file system It seems that I need to mount sda2 or sda5. Here is what I tried: (I tried this on a virtual machine so the sda(s) are now vda(s) ) ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/vda: 19.3 GB, 19327352832 bytes 16 heads, 63 sectors/track, 37449 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0008eece Device Boot Start End Blocks Id System /dev/vda1 * 3 496 248832 83 Linux Partition 1 does not end on cylinder boundary. /dev/vda2 498 37448 18622465 5 Extended Partition 2 does not end on cylinder boundary. /dev/vda5 498 37448 18622464 8e Linux LVM ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ sudo mount -t ext4 /dev/vda5 /mnt mount: wrong fs type, bad option, bad superblock on /dev/vda5, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so ubuntu@ubuntu:~$ sudo mount -t ext2 /dev/vda5 /mnt mount: wrong fs type, bad option, bad superblock on /dev/vda5, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so ubuntu@ubuntu:~$ Any info that can help me rescue that server would be greatly appreciated!

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• GPTsync mismatch problem

  - by user86762

  I have a hybrid disk. After trying to copy some files from another disk to this one, I lost my OSX and Ubuntu boot capability. Ran gptsync and got: Current GPT partition table: # Start LBA End LBA Type 1 34 1987 BIOS Boot Partition 2 1988 1029662719 Basic Data 3 1029662720 2108995583 Basic Data 4 2108995584 2109405183 EFI System (FAT) 5 2109405184 2517004287 Mac OS X HFS+ 6 2517266432 2667417599 Mac OS X HFS+ 7 2667417600 3900229631 Basic Data 8 3900230504 3907029118 Linux Swap Current MBR partition table: # A Start LBA End LBA Type 1 1 3907029167 ee EFI Protective Status: MBR table must be updated. Proposed new MBR partition table: # A Start LBA End LBA Type 1 1 33 ee EFI Protective 2 34 1987 da Non-FS data 3 1988 1029662719 83 Linux 4 * 1029662720 2108995583 07 NTFS/HPFS May I update the MBR as printed above? [y/N] Clearly the MBR table is damaged or mismatched. But it does not reflect the correct GPT table partitions at all. How do I get the MBR repaired to match the GPT table (up to the 4 part limit of course)? The question is simply - Do I blindly say Yes to gptsync's suggestion? It looks sort of ok but not exactly so...Advice please on interpreting the above output to get my disk usable would be greatly appreciated. Thank You!

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• lxc containers fail to autoboot in 14.04 trusty using 'lxc.start.auto = 1'

  - by user273046

  In trusty 14.04 containers fail to autoboot despite all settings being set as 14.04 requires. They show all as STOPPED I have correctly configured 2 LXC containers: calypso encelado They run perfectly if I run sudo lxc-autostart then sudo lxc-ls --fancy results in: ubuntu@saturn:/etc/init$ sudo lxc-ls --fancy NAME STATE IPV4 IPV6 AUTOSTART calypso RUNNING 192.168.1.161 - YES encelado RUNNING 192.168.1.162 - YES The problem is trying to run them at boot. I have at: /var/lib/lxc/calypso/config: # Template used to create this container: /usr/share/lxc/templates/lxc-download # Parameters passed to the template: # For additional config options, please look at lxc.conf(5) # Distribution configuration lxc.include = /usr/share/lxc/config/ubuntu.common.conf lxc.arch = x86_64 # Container specific configuration lxc.rootfs = /var/lib/lxc/calypso/rootfs lxc.utsname = calypso # Network configuration lxc.network.type = veth lxc.network.flags = up #lxc.network.link = lxcbr0 lxc.network.link = br0 lxc.network.hwaddr = 00:16:3e:64:0b:6e # Assegnazione IP Address lxc.network.ipv4 = 192.168.1.161/24 lxc.network.ipv4.gateway = 192.168.1.1 # Autostart lxc.start.auto = 1 lxc.start.delay = 5 lxc.start.order = 100 and I have LXC_AUTO="false" as required inside /etc/default/lxc: LXC_AUTO="false" USE_LXC_BRIDGE="false" # overridden in lxc-net [ -f /etc/default/lxc-net ] && . /etc/default/lxc-net LXC_SHUTDOWN_TIMEOUT=120 Any idea on why the containers don't start at boot? At reboot they are always in the STOPPED state: ubuntu@saturn:~$ sudo lxc-ls --fancy NAME STATE IPV4 IPV6 AUTOSTART calypso STOPPED - - YES encelado STOPPED - - YES and then again they can be started manually, using sudo lxc-autostart

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• How do I start Ubuntu without X server?

  - by Kaare Mikkelsen

  So, I'm trying to install the official nVidia drivers for my fancy graphics card, and they advice disabling the X server before installing, as well as making sure that I can boot without the X server, so as not to wreck anything. However, I seem to be doing something wrong. As I understand it, this should be as simple as changing the runlevel from 2 to 1? (I am aware that all this may simply be me not understanding runlevels) If that is correct, a quick test should be simply typing "sudo init 1" or "sudo telinit 1" in a terminal? Doing that makes the system attempt to shutdown, only it stops at the purple screen with the ubuntu logo and 5 white dots underneath. I haven't observed it get anywhere from there, I always end up holding down the power button. "sudo telinit 3" has not visible effect. Alternatively, I should be able to get there using the recovery mode, activated through the grub menu? I have very little success with that. After picking recovery mode, I am faced with a set of options about how to proceed. Both choosing the one with "network enabled" and "text only", I get a dialog explaining that this will mount my / file system in read/write mode, and whether this is what I want. I choose yes, and it seems to report that my drive is fine (there's a single line of text detailing the state of the partition). And then it stops. I haven't tried letting it sit for more than a few minutes, but presumably this process should be comparable in duration to a regular boot? I am not particularly fond of messing with any .conf-files until I am certain that I can handle things with training wheels on. So, I guess there are two questions: the one in the title, and "how do I start a text-only session without changing defaults?" Thanks in advance :)

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• disk space worngly displayed after installing LVM disk

  - by Ubuntuser

  I installed ubuntu server using LVM partitioning on a 1 TB hard disk. However, after installation, i can only see 10 Gig space here is the fidsk output ` # fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00041507 Device Boot Start End Blocks Id System /dev/sda1 * 1 10 71680 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 10 121602 976689152 8e Linux LVM Disk /dev/dm-0: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-0 doesn't contain a valid partition table Disk /dev/dm-1: 2147 MB, 2147483648 bytes 255 heads, 63 sectors/track, 261 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-1 doesn't contain a valid partition table You have new mail in /var/mail/root and df -h output df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/system-root 9.9G 6.6G 2.8G 71% / devtmpfs 1.9G 232K 1.9G 1% /dev tmpfs 1.9G 4.0K 1.9G 1% /dev/shm /dev/sda1 68M 22M 43M 34% /boot tmpfs 6.0G 0 6.0G 0% /var/spool/asterisk/monitor You have new mail in /var/mail/root ` any way to increase this space without reisntalling?

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• I'm stuck on User Defined Session destop environment

  - by Dan

  I just installed Ubuntu for the first time dual boot so I get to choose Ubuntu or windows. I then changed the setting where is doesn't ask for my password when booting up. I then installed Edubuntu desktop package. I then hit system and logged out that way i could be at the loggin screen that also lets you select the desktop environment. Edubuntu was not there but User defined session was so i clicked that thinking that might be Edubuntu and logged in. Now im totally stuck. Only walpaper on the screen as i realize now that is normal for user defined session but there is no log out button to change desktop environments now and since I set it to not ask for password at boot up there is no option to change it at start up. If i hit ctrl+alt+del it only lets you shutdown, restart, suspend, or hybernate.... no logg out. I have hit every key on the keybourd hoping something will pop up. I thought this must be a simple noob mistake that there must be endless artiles about this so did searches on google and forums and was shocked to find nothing about this. My next step unless someone can help is to uninstall and reinstall.

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• ubuntu mass deployment kickstart file how/where?

  - by gkrawiec

  i've succesfully been able to prepare an OEM image that is ready to be cloned and installed in about 1100 machines. My only issue right now is that when the machine boots for the first time it asks for the basic setup questions. I think I have the kickstart file ready, but I dont know how to call it. My logic says that before I run the "prepare to ship to end user" script that I have to modify the boot parameters to call the ks file so the ks.cfg file goes with each drive. My issue is I cant figure out how to modify the boot parameters. Also, i dont know if there is a log i can check to see if its actually calling it or not. I am using ubuntu 12.04 desktop x64. I am trying on /etc/default/grub by modifying one line from GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash ks=file:/ks.cfg" then I run an update-grub but its not working. My ks.cfg file is: ----------------------- #Generated by Kickstart Configurator #System language lang en_US #System keyboard keyboard us #System timezone timezone America/Tijuana Initial user user mytestuser --fullname "Test User" --iscrypted --password $sdfsfsdgthrttyujtkyktru #Rebootafter installation reboot ------------------------- what am I doing wrong? thanks, -gk

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• Can't access external hard drives or thumb drives

  - by calden

  I am not a complete linux noob but I don't know a lot either and would greatly appreciate some help with this. I just installed Ubuntu 10.10 onto my laptop. Everything is working great however USB devices such as thumb drives and external hard drives wont show up. I have been looking around a bit and when I run sudo fdisk -l it displays this: Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00065684 Device Boot Start End Blocks Id System /dev/sda1 * 1 29255 234983424 83 Linux /dev/sda2 29255 30402 9212929 5 Extended /dev/sda5 29255 30402 9212928 82 Linux swap / Solaris Disk /dev/sdb: 16.0 GB, 16026435072 bytes 64 heads, 32 sectors/track, 15283 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000df90d Device Boot Start End Blocks Id System /dev/sdb1 * 1 15283 15649776 7 HPFS/NTFS It does seem to display my 16 gig thumb drive but other then seeing it here I cant access it to read and write files to it. It does the same with my external hard drive. I know those devices work as I have tried them on my other computer and they are working fine. Also this is what is in fstab if this will help anybody help me: proc /proc proc nodev,noexec,nosuid 0 0 /dev/sdb1 / ext4 errors=remount-ro 0 1 /dev/sdb5 none swap sw 0 0 Thank you very much for the help everyone.

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• Cannot Restore GRUB (Ubuntu 11.04 + Win 7)

  - by Benny

  I'm trying to fix GRUB on my PC, but I'm running into serious issues doing so. Any help would be greatly appreciated as I'm completely crippled right now. Here is the sequence of events for this PC: Installed Windows 7 Split full disk into two partitions (one for win7 and one for multimedia) Long time passed Split one of the partitions into two again Installed Ubuntu 11.04 on new partition A little time passed Windows 7 acting up, reinstall Ubuntu GRUB gone Tried restoring GRUB by mounting and grub-install from live USB Tried switching to a live CD instead of USB (thinking it might be the drive) Now I don't see GRUB and I'm getting "input/output" errors An example i/o error: ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 750.2 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xbe86aff6 Device Boot Start End Blocks Id System /dev/sda1 * 1 48727 391393280 7 HPFS/NTFS /dev/sda2 48727 77063 227612647+ 7 HPFS/NTFS /dev/sda3 77063 91202 113566721 5 Extended /dev/sda5 77063 90622 108908544 83 Linux /dev/sda6 90622 91202 4657152 82 Linux swap / Solaris ubuntu@ubuntu:~$ sudo mount /dev/sda5 /mnt ubuntu@ubuntu:~$ sudo grub-install --root-directory=/mnt /dev/sda mkdir: cannot create directory `/mnt/boot': Input/output error ubuntu@ubuntu:~$ cd /mnt ubuntu@ubuntu:/mnt$ ls ls: cannot access etc: Input/output error

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• Mouse doesn't work & internet connection not made in Ubuntu 12.04 LTS

  - by David Skare

  Yesterday, Nov 15, 2012, I booted into my Ubuntu 12.04 LTS system. It has resided on a Crucial 128 GB SSD with about 90% free space since early summer. I also have Windows 7 loaded on another Crucial 256 GB SSD. Ubuntu has set up a dual boot system for me even though each OS has its own SSD. I have been using this setup without problems since summer. Yesterday, when the boot process finished, my Microsoft Comfort Mouse 3000 did not work and there was a message that Ubuntu was not connected to the internet. So w/o the mouse I was forced to turn the machine off manually. About 4 days ago Ubuntu worked fine and booting into Win 7 also works fine. I have a backup machine with the same style mouse on it so I swapped the mouse onto this system. Same results. But both mice work when booting into Win 7. Today I removed both SSDs and installed my Ubuntu 12.04 HD which has not been used since I moved Ubuntu to the SSD from it. Same results. Between the last time I used Ubuntu 12.04 on the SSD and when I tried to use it again I made no changes to my machine, either hardware or software. My machines specs are: AMD FX-6100, MSI 990FXA-GD65 AM3+ format with latest BIOS (Ver 19.9), Corsair Vengeance 1866 MHz memory - 16 GB (4GB X 4 sticks), MSI N580GTX video card (nVidia 306.97 drivers), Sony Bravia 32" HD TV as a monitor, Pioneer BluRay DVD-RW, DSL connection to internet thru a router (10 mps), Crucial 128 GB SSD (90% free space), Microsoft Comfort Mouse 3000 I try to maintain current BIOS and drivers for all devices. I mostly use my Ubuntu system for programming in GCC and OpenCOBOL, surfing the internet and e-mailing. No games are installed. I'm stumped! If anyone has experienced this same problem I'd appreciate knowing how you solved it. TIA, Dave

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• Chainloading GRUB2 from BURG

  - by WindowsEscapist

  I have an old PC with Puppy Linux in addition to Ubuntu and Windows XP. THis creates a LOT of menu entries (all of which I would like to keep): Ubuntu 10.04 Ubuntu Recovery Mode Memtest x86 Memtest Serial Windows XP Pro Precise Puppy Linux Precise Puppy TORAM Puppy 4.3.1 Puppy 4.3.1 TORAM Plop Boot Manager (for booting to USB, PC doesn't have BIOS option). Now, in my fancy shiny laptop I've gotten really attached to BURG, and would like a setup where I have a Windows icon, an Ubuntu icon, and an arrow that chainloads GRUB2 so that I can boot from USB or run Puppy if need be (all these entries will obviously not fit into the BURG theme I use, Lightness). The problem is, GRUB2 can't install the the beginning of a partition like it used to be able to (I am reluctant to specify andything with --force at the end), at least, without warning that warn: This is a BAD idea!. So I'm kind of at a loss here. I can't see how the folding option would work, because all of those other options would have the same icon once I unfolded (Lightness is non-text-based). If I do embed GRUB using grub-install /dev/sdax --force, how do I chainload it with BURG? Is there another way?

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• What is the safest way to remove a swap partition?

  - by user212062

  I am running Ubuntu 12.04 on a 64-bit HP laptop with a 16 GB flash drive. I do not have a working hard drive right now. When I installed Ubuntu, I created a 2 GB swap partition on sdb1. I have since learned that swap partitions are generally a bad idea on flash drives, so I would like to use my swap space for my other partitions. You can see my partition scheme in the link below. I have read that I just have to comment sdb1 out of the fstab file, boot from a GParted live CD, select swapoff for sdb1, delete/merge with other partition, and everything's good. But, I've also read that messing with sdb1 can change the UUID of sdb2 or sdb3 and cause problems. Is this true? Does initramfs use swap at all? Also, when I get Ubuntu running on my laptop with an internal hard drive, does the swap partition help that much? I have 6 GB of DDR3. Does the rule of 1.5xActual RAM still apply? It seems like quite a bit to me. Thanks for the help! UPDATE: I have removed swap. The process I followed is: Right click swap partition in GParted and selected swapoff. Used # to comment the swap partition out of fstab. I tried to boot from a live GParted CD, but I kept getting an error, so I ran GParted in Ubuntu. Deleted swap partition in GParted. Unmounted /windows. Expanded /windows to take the remaining space. Mounted /windows. The / and /windows partitions each kept their own names and UUIDs, and everything is running fine. I have never seen any swap space being used before, and I don't intend to use the hibernate function, so I think removing swap was a good idea.

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• Problems with Intel Video Resolution on Acer Laptop Wide Display

  - by ricstr

  I have an ACER Aspire 5332 laptop which I have just installed Ubuntu 12.04 x64, which is causing some issues with the video display on boot and video resolution. First and foremost, it will only boot past the purple screen if GRUB has been edited to replace 'quick splash' with 'nomodeset'. Secondly, once it has booted with the the 'nomodeset' option, it does not allow me to change the resolution higher or lower from 1024 x 786. Is it OK to use the 'nomodeset' for normal use? Will this compromise performance of other devices? The video card is an on-board one, integrated within the Intel GL40 chip-set. The display is a wide-screen LCD, and under Windows could operate under various resolutions. Ideally I would like it to operate on a resolution to fit the wide-screen display as it a bit stretched out at the moment, and less desktop space as I am used to. I believe the optimal resolution is 1366 x 768. Below is some information from the terminal which may be useful. ricstr@Aspire-5332:~$ lspci | grep -i VGA 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09) ricstr@Aspire-5332:~$ xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768 default connected 1024x768+0+0 0mm x 0mm 1024x768 0.0*

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• How do I choose which way to enable/disable, start/stop, or check the status of a service?

  - by Glyph

  If I want to start a system installed service, I can do: # /etc/init.d/some-svc start # initctl start some-svc # service some-svc start # start some-svc If I want to disable a service from running at boot, I can do: # rm /etc/rc2.d/S99some-svc # update-rc.d some-svc disable # mv /etc/init/some-svc.conf /etc/init/some-svc.conf.disabled Then there are similarly various things I can do to enable services for starting at boot, and so on. I'm aware of the fact that upstart is a (relatively) new thing, and I know about how SysV init used to work, and I'm vaguely aware of a bunch of D-Bus nonsense, but what I don't know is how one is actually intended to interface with this stuff. For example, I don't know how to easily determine whether a service is an Upstart job or a legacy SysV thing, without actually reading through the source of its shell scripts extensively. So: if I want to start or stop a service, either at the moment or persistently, which of these tools should I use, and why? If the answer depends on some attribute (like "this service supports upstart") then how do I quickly and easily learn about that attribute of an installed package? Relatedly, are there any user interface tools which can safely and correctly interact with the modern service infrastructure (upstart, and/or whatever its sysv compatibility is)? For example, could I reliably use sysv-rc-conf to determine which services should start?

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• How to reduce the fan noise and how to increase battery life in ubuntu 11.10/12.04?

  - by mehdi

  I have a brand new Sony Vaio S series laptop.(VPCSA2DGX) It came factory installed with Windows 7 professional Edition 64bit. Runs Intel core i5, 500 GB HDD , 4GB Ram. First I installed ubuntu 11.10 64 bit along side Windows to dual boot. Later,since the problem did not solve, I installed ubuntu 12.04 64bit along side Windows to dual boot. However the problem keeps annoying me. Problem: When running ubuntu 11.10/12.04, the battery lasts only about 1.5 hours. The Fan runs loud and continuously. And there is a lot of heat generated. System monitor shows less than 5% CPU used. My laptop enjoys hybrid graphic and I tried turning off ADM graphic card and keep Intel graphic card on. However I can not get the Fan noise or heat to go away and consequently the battery drain continues. BTW, in windows, the laptop gives 4-5 hours of battery power, Fan is silent and there is no heat problem. Any ideas on how to reduce the fan noise and how to increase battery life in ubuntu 11.10/12.04?

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• Hide icons encrypted file system partitions in Nautilus

  - by Eddy Pronk

  I've installed Ubuntu 10.04 from the alternate CD. It has an encrypted root and swap partition. The root partition is visible in Nautilus as 'File Syste' icon. There is another icon "216 GB Filesystem". If I click it says: Unable to mount 216 GB Filesystem. /dev/mapper/sda5_crypt is mounted. Then there is another icon "6.1 GB Swap Space". If I click it it says: Unable to mount 6.1 GB Swap Space. Not a mountable file system. How can I hide these last two icons? Partition layout: $ sudo fdisk -l /dev/sda [sudo] password for eddyp: Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xa6e92df4 Device Boot Start End Blocks Id System /dev/sda1 1 11749 94373811 7 HPFS/NTFS /dev/sda2 11871 38914 217219073 5 Extended /dev/sda3 * 11750 11871 976896 83 Linux /dev/sda5 11871 38167 211220480 83 Linux /dev/sda6 38167 38914 5997568 83 Linux Partition table entries are not in disk order Mounted as: $ mount /dev/mapper/sda5_crypt on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) /dev/sda3 on /boot type ext4 (rw) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/eddyp/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=eddyp) /dev/sda1 on /media/S3A6595D003 type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)

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• Installing Ubuntu 12.04 on a single GPT SSD which contains Windows 7

  - by Gary

  I recently bought a brand new 64 bit PC with a (ASUS) motherboard that supports UEFI and a GPT formatted 240Gb SSD, which contains Windows 7 in the first of 3 (80Gb) partitions. When the system arrived, it booted into Windows 7 like a dream, with no problems. I did not originally want Windows, but the manufacturer does not work with Linux (of any flavour), so I thought I would install Ubuntu into the second partition and dual boot. I downloaded the 12.04 64bit version and proceeded to install. Having selected to 'install', the screen became corrupted, with multicoloured garbage across the middle third of the screen !! So, I rebooted and --- MISSING OPERATING SYSTEM !!! The only way I can now get into Windows is via Super Grub2. First question - what went wrong ? 2nd - Will Ubuntu install on a GPT disk partition ? 3rd - Will it install alongside Windows 7 without screwing the boot mechanism ? 4th - How do I do it ? I have scoured the internet looking for appropriate answers and found NONE ! Please help.......

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• Can I install new version of Ubuntu in spair RAIDed partition with unetbootin

  - by artfulrobot

  I have Ubuntu 11.04 running on my home desktop which has 2 hard drives mirrored by RAID. The drives are partitioned with a big data partition, a swap partition and a couple of 20Gb partitions for OSes, one is 11.04 which is in use, and the other is kept spare for installing a later version. Which is what I'd like to do now. The idea of a 2nd partition for new OS is that I can try it, and if it's problematic, I can boot back into the original one - the machine is shared with others, so I need it to stay available! I have had horrible problems with software RAID after using a Live USB stick - basically it messes up the internal numbering of the RAID drives or something, anyway, the result is you can't boot after using it :-( and have to spend ages re-assembling the arrays, trying to remember grub commands etc etc. Quite a shocker when you consider booting from a Live USB is supposed not to affect the existing system. As I'm installing in a RAIDed disc, I would typically use the Alternative install (sad to hear that this is going to be dropped in future). However, I think I might be able to use unetbootin to trick the system into working on top of the existing system that understands RAID, with the normal ISO? If unetbootin loads from drives that are already understood to be RAIDED, then presumably it will only see md0... instead of sda, sdb... and as long as I don't need to repartition (I don't) it should be fine, right? Or is that just plain foolishness? Please tell me before I end up with a dead system (again!)

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• Unable to mount NTFS Partition after resizing

  - by sam

  I was having only 15 GB space allocated to LINUX. I wanted to have more space available to linux. So I just re sized one of my ntfs partition using GParted. But after resizing I am not able to open the partition neither in Ubuntu nor in windows. OS: Dual Boot Win7/Ubuntu 10.10 The error message i get is the following: Error mounting: mount exited with exit code 12: Failed to read last sector (395458824): Invalid argument HINTS: Either the volume is a RAID/LDM but it wasn't setup yet, or it was not setup correctly (e.g. by not using mdadm --build ...), or a wrong device is tried to be mounted, or the partition table is corrupt (partition is smaller than NTFS), or the NTFS boot sector is corrupt (NTFS size is not valid). Failed to mount '/dev/sda5': Invalid argument The device '/dev/sda5' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

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