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• filesystem types for partitions

  - by Tim

  I am going to dual-boot install Ubuntu1 10.04 on my laptop with Windows 7. I was wondering what filesystem types (such as ext2, ext3, ext4, ReiserFS and whatever might come into mind) are recommended for various possible partitions (such as /, home, /boot, swap, and others that might come into mind)and why? if ext4 is now stable enough for use for partitions in Ubuntu and Shared partition between Windows and Ubuntu? what journaling Options (writeback, ordered and journal) are recommended for each partition's filesystem? Thanks and regards!

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• Problem with apt-get install command

  - by Krishna Sangeeth K S

  I was trying to install p7zip for extracting 7z files in Ubuntu 11.04 on typing sudo apt-get install p7zip , i received the following error message Reading package lists... Error! E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/extras.ubuntu.com_ubuntu_dists_natty_main_binary-amd64_Packages E: The package lists or status file could not be parsed or opened. What could be the problem? My update manager is also not working

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• Lenovo ThinkCentre DisplayPort not working

  - by user170736

  I installed Xubuntu 13.04, Zorin 7, and finally Ubuntu 13.04 on a Lenovo M58. The BIOS works fine on my DisplayPort monitor but Ubuntu will only work on the SVGA. The graphics are on-board: Intel Q45/Q43 x86/MMX/SSE2 I installed and ran the new Intel Driver Manager. It seemed to complete all tasks without any errors, but the DisplayPort still only works for the BIOS. Any help would be greatly appreciated

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• Installed Sun Java 6 - configuration problem when running as sudo

  - by HorusKol

  I have install Sun Java 6 on an Ubuntu server and set an environment variable in the default profile as per the instructions at http://www.edugate.ie/workshop-guides/shibboleth-2-identity-provider-installation-linux-debian-or-ubuntu I then try to run an installer for a Java servlet - but when I run it as myself, it cannot create the required directory in /opt. When I run it as sudo, I am told that JAVA_HOME is not correct and it doesn't even start the installer - shouldn't this be coming from /etc/profile like it is for my normal user?

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• Intel Centrino Wireless N 1000 doesn't work on a Lenovo Z560

  - by Timetraveler

  I upgraded my Ubuntu 11.04 to 11.10 and my Wifi has stopped working. I have a Lenovo Z560 that has Intel centrino wireless-N 1000. I have searched various threads having similar problems for a solution and have no success. The wlan0 is not even showing up in rfkill. Please help me find a solution. I am giving below the output of various debug commands. Thanks in advance. DISTRIB_ID=Ubuntu DISTRIB_RELEASE=11.10 DISTRIB_CODENAME=oneiric DISTRIB_DESCRIPTION="Ubuntu 11.10" ----##uname -a Linux gurucharapathy-laptop 3.0.0-17-generic-pae #30-Ubuntu SMP Thu Mar 8 17:53:35 UTC 2012 i686 i686 i386 GNU/Linux ----##lspci -nnk | grep -iA2 net 05:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [8086:0084] Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN [8086:1315] Kernel modules: iwlagn 06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 02) Subsystem: Lenovo Device [17aa:392e] Kernel driver in use: r8169 ----##iwconfig lo no wireless extensions. eth0 no wireless extensions. ----##iwlist scan lo Interface doesn't support scanning. eth0 Interface doesn't support scanning. ----##rfkill list all 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 2: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no ----##lsmod Module Size Used by rfcomm 38408 8 bnep 17923 2 parport_pc 32114 0 ppdev 12849 0 binfmt_misc 17292 1 snd_hda_codec_hdmi 31426 1 snd_hda_codec_conexant 52460 1 uvcvideo 67271 0 videodev 85626 1 uvcvideo snd_hda_intel 28358 2 snd_hda_codec 91859 3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec joydev 17393 0 snd_pcm 80435 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_seq_midi 13132 0 i915 509554 9 drm_kms_helper 32889 1 i915 snd_rawmidi 25241 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event snd_timer 28932 2 snd_pcm,snd_seq drm 196290 5 i915,drm_kms_helper snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq mei 36466 0 mac80211 393421 0 snd 55902 14 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device ideapad_laptop 13575 0 intel_ips 17753 0 btusb 18160 2 i2c_algo_bit 13199 1 i915 soundcore 12600 1 snd bluetooth 148839 23 rfcomm,bnep,btusb cfg80211 172427 1 mac80211 psmouse 63474 0 serio_raw 12990 0 snd_page_alloc 14108 2 snd_hda_intel,snd_pcm sparse_keymap 13658 1 ideapad_laptop wmi 18744 0 video 18908 1 i915 lp 17455 0 parport 40930 3 parport_pc,ppdev,lp ahci 21634 2 libahci 25761 1 ahci r8169 47200 0 ----##nm-tool NetworkManager Tool State: asleep Device: eth0 ----------------------------------------------------------------- Type: Wired Driver: r8169 State: unmanaged Default: no HW Address: 88:AE:1D:DE:5F:9C Capabilities: Carrier Detect: yes Speed: 100 Mb/s Wired Properties Carrier: on ----##lshw -C network *-network UNCLAIMED description: Network controller product: Centrino Wireless-N 1000 vendor: Intel Corporation physical id: 0 bus info: pci@0000:05:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:d6400000-d6401fff *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:06:00.0 logical name: eth0 version: 02 serial: 88:ae:1d:de:5f:9c size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=N/A ip=192.168.0.100 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s resources: irq:41 ioport:2000(size=256) memory:d2410000-d2410fff memory:d2400000-d240ffff memory:d2420000-d243ffff

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• How do I mount Samba share as non-root user

  - by Android Eve

  Is there a step-by-step tutorial that instructs in detailed step-by-step how to smbmount a Samba share to be used by a non-root user on a Ubuntu 10.04 desktop? Note: there are numerous threads on Google search dealing with this seemingly new problem. Instructions that used to work on Ubuntu 8.04 (or an older version of smbfs) no longer work. I need something fresh, punctual and especially reproducible. Thanks.

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• Hash Sum mismatch on python-keyring

  - by Gearoid Murphy

  I came in to my workstation this morning to find an apt error notification relating to a hash sum mismatch on the python keyring password storage mechanism, given the sensitive nature of this package, this gives me some cause for concern. Has anyone else seen this error?, how can I ensure that my system has not been compromised? Failed to fetch http://gb.archive.ubuntu.com/ubuntu/pool/main/p/python-keyring/python-keyring_0.9.2-0ubuntu0.12.04.2_all.deb Hash Sum mismatch Xubuntu 11.04 AMD64

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• How do I make custom bootsplash and wallpapers [closed]

  - by joel

  Possible Duplicate: How to customize live Ubuntu CD? I would like to customize my Ubuntu install with my own Wallpaper. I know where to change the wallpapers I copy my wallpaper in /usr/share/wallpapers and then modify the contests/xml file in order to use it but thats about it. how can I also change the following with the same Image: the login image(lightdm) boot screen and shutdown screen(plymouth)

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• update manager is not woring Failed to download repository information

  - by harry

  My update manager is not working and showing this message Failed to download repository information Check your Internet connection. W:Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found , W:Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , E:Some index files failed to download. They have been ignored, or old ones used instead. Pleas help Thank you for your time.

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• Prompted to type password (for installation purpose) AFTER I removed my password. What to do?

  - by Matiss Janis Aboltinš

  I just installed Ubuntu and one of the 1st things that I did was - remove my password. I went into settings - user accounts, clicked on the unlock icon and changed the password to nothing, made it so it doesn't require me to log in, but yet, when I try to install some software I get prompted to type in my password. I tried using nothing and my old password - neither of them work. What should I do to fix this? Do I really have to re-install Ubuntu?

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• Wont boot from USB, stops at SYSLINUX copyright

  - by Steve

  Created bootable 11.10 in Windows from Universal USB Installer 1.8.6.8, upon boot in my HP Mini Netbook it displays only this: SYSLINUX 4.04 EDD 2011-04-18 Copyright (C) 1994-2011 H. Peter Anvin et al _(Blinky Cursor) I tried removing "ui" from syslinux.cfg, no change... (Re: can't install with usb pen drive, SYSLINUX problem) I also tried creating a bootable USB using unetbootin-windows-563, no change. Does anybody have any other ideas?

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• Media server...serving files...............for a limited time only

  - by Craig

  I’m new to Ubuntu and am seeking help with a media server I have built. I have a couple of HTPCs in my house running XBMC. I wanted to build one for the family room working double duty as a HTPC, and media server to share movies, TV shows, music, etc. on my Windows network. So using some spare old parts I had lying around I decided to go CRAZY and build my first Linux box. I used Ubuntu because it seemed to be the most user friendly variant, especially for people that are new to Linux. I had to do a few things to get the media files shared properly on my network: Made sure my two media drives auto-mount every time I boot the computer by editing the “fstab” file – “sudo nano /etc/fstab” Installed Samba - “sudo apt-get install samba” Set a password for Samba - “sudo smbpasswd –a USERNAME” Edited the Samba configuration file to make sure the computer was in my networks workgroup – “sudo nano /etc/samba/smb.conf” In the file manager (not sure if that’s the right name for it), I right-clicked my media folders and set the sharing and permissions. The sharing was done without guest access, and permissions were set to; Owner, Group, and Others - Access: Create and Delete Files. Adjusted the Power Management settings to never put the system into sleep mode. I checked to see if I had access to the files from a Windows 7 machine and I did (Woo Hoo!). But when I tried to play any of my video files from the Windows machine (using VLC media player), they would only play for about 2-5 minutes and then they would stop with an error message saying that the file could not be accessed (Booo...). I tried playing some files through XBMC running in Windows and they worked for a bit longer (about 10-15mins), but they also stopped playing. I installed the Linux version of XBMC on the server and played the files locally with no problems. It doesn’t seem to be an issue with the files themselves, it seems to be a sharing problem on my network. So my question to the Ubuntu gurus out there is: Did I miss adding/editing something in the Samba configuration file? Did I use the right method to share my media files (file manager vs. using the terminal)? Is it possible for the computer to still go to sleep without the screen going black (does that even make sense?). Are there any special settings in Ubuntu that I should be using since this computer as a media server (is there a media server mode?...!...?). Any help on this matter would be greatly appreciated. Thanks

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• How can I force a USB modem to only connect via EDGE and not 3G?

  - by Anders Wallenquist

  How do I get Network-admin to restrict connection to GSM (Edge) instead of flipping between 3G and Edge and lose connection. Usually it works out-of-the box, but at my current location there are a lot of radio shadows, so the recommendation from my ISP is that I should lock to Edge - which can be done using their own driver in Windows. How can I do this in Ubuntu Ubuntu 11.04 Modem: Huawei E220 ISP: Telia mobilt bredband kontant

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• How to configure 2 lan cards?

  - by Gurupal singh

  I have Ubuntu 14.04 installed on my system and i make it as a server in my office with having 15 employees working.I have 2 Lan cards in my system, one for input from router to my ubuntu server and other from my system to switch, which connects all my employees from through that switch via lan cables.Now, how can i configure my both LAN cards, as i wants to block some sites and make some restriction on the network. Please help me out. It's really a big problem for me. Thanks.

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• Update Package Manager failed, E:type "ain"

  - by Robert

  The Update Manager failed and gave me this error: E:Type 'ain' is not known on line 3 in source list /etc/apt/sources.list.d/scopes-packagers-ppa-precise.list What should I do? This message came up when I followed the editor's instructions: $cat /etc/apt/sources.list.d/scopes-packagers-ppa-precise.list deb http://ppa.launchpad.net/scopes-packagers/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/scopes-packagers/ppa/ubuntu precise main ain$

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• How can I solve, error:unknown filesytem grub rescue>

  - by Benson

  I was previously using Win7 and had two partitions on my hard disk. After learning about Ubuntu I decide to remove Windows and install Ubuntu 11.10 instead. All my important files and documents are stored in my second partition. After successful installation, during restart I get the error : error: unknown filesystem grub rescue> Please help me to resolve the problem, and note that I don't want dual boot my machine.

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• Screen corruption with 946G / 82945G/GZ [closed]

  - by Ferdinandhi

  Since version 10.04 I have problems with Ubuntu (I think) my graphics card. This problem arises especially when working with graphics or CPU usage much. The problem is that it breaks the GUI as you see in the image and the entire computer is very slow. I'm running Ubuntu 11.04 and have a Intel graphics card 945G x86/MMX/SSE2. I used Unity and Gnome 3 with the same results. lspci returns 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)

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• Error installing RVM

  - by Dbugger

  I am following this guide, but this is the output I receive. What am the problem? dbugger@mercury:~$ \curl -sSL https://get.rvm.io | bash -s stable --rails Downloading https://github.com/wayneeseguin/rvm/archive/stable.tar.gz Upgrading the RVM installation in /home/dbugger/.rvm/ RVM PATH line found in /home/dbugger/.profile /home/dbugger/.bashrc /home/dbugger/.zshrc. RVM sourcing line found in /home/dbugger/.bash_profile /home/dbugger/.zlogin. Upgrade of RVM in /home/dbugger/.rvm/ is complete. # Enrique, # # Thank you for using RVM! # We sincerely hope that RVM helps to make your life easier and more enjoyable!!! # # ~Wayne, Michal & team. In case of problems: http://rvm.io/help and https://twitter.com/rvm_io Upgrade Notes: * No new notes to display. rvm 1.25.27 (stable) by Wayne E. Seguin <[email protected]>, Michal Papis <[email protected]> [https://rvm.io/] Searching for binary rubies, this might take some time. No binary rubies available for: ubuntu/14.04/x86_64/ruby-2.1.2. Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies. Checking requirements for ubuntu. Installing requirements for ubuntu. Updating system.......... Installing required packages: gawk, libreadline6-dev, libssl-dev, libyaml-dev, libsqlite3-dev, sqlite3.... Error running 'requirements_debian_libs_install gawk libreadline6-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3', showing last 15 lines of /home/dbugger/.rvm/log/1401804140_ruby-2.1.2/package_install_gawk_libreadline6-dev_libssl-dev_libyaml-dev_libsqlite3-dev_sqlite3.log ++ /scripts/functions/utility : __rvm_try_sudo() 405 > sudo -p '%p password required for '\''apt-get --no-install-recommends --yes install gawk libreadline6-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3'\'': ' apt-get --no-install-recommends --yes install gawk libreadline6-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libssl-dev : Depends: libssl1.0.0 (= 1.0.1f-1ubuntu2) but 1.0.1f-1ubuntu2.1 is to be installed E: Unable to correct problems, you have held broken packages. ++ /scripts/functions/utility : __rvm_try_sudo() 405 > return 100 ++ /scripts/functions/requirements/ubuntu : requirements_debian_libs_install() 36 > return 100 Requirements installation failed with status: 100.

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• Old files on computer not visible after upgrade

  - by Srinivasan

  I recently upgraded Ubuntu OS to 12.04.01 version by selecting the option to upgrade and preserve old files. After installation, I am not able to view my old files on the computer. Can anyone help to retrieve all the old files and make it available with the new installation? The computer hard disk shows that it still has the capacity nearly full with all my old files. Netbook Acer AOA150 model. Thanks in advance. Srinivasan

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• How to get wireless (Alfa) operate in full power and speed up wireless Internet?

  - by MahboobeAlam

  I am using Wireless to connect to the internet (router). My laptop has Atheros wireless (AR 242x/542x) adapter but the router is a little bit far-away from my room so I have to use an external wireless adapter i.e. Alfa (Realtek 8187) for connectivity. However, since I have started using Ubuntu I noticed that Alfa is not working in full power, internet speed in Ubuntu is much slower than in Windows on my laptop. When I am using Windows 7 the LED (bulb) on Alfa blinks as it should, but when in Ubuntu, it doesn't blink rather it is on but very dim. Connection using Atheros adapter is also the same (slow)... I have tried 4 methods (I found on the Internet) to troubleshoot this matter but no success. It seems to me that Ubuntu/Linux is not letting these wireless adapters to operate in full strength. iwconfig shows that power management is off for both. So what's the problem? Details: ifconfig eth0 Link encap:Ethernet HWaddr 00:1f:16:1e:36:ec UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:45 Base address:0x6000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1657 errors:0 dropped:0 overruns:0 frame:0 TX packets:1657 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:241697 (241.6 KB) TX bytes:241697 (241.6 KB) wlan0 Link encap:Ethernet HWaddr 00:22:5f:9b:24:b5 inet6 addr: fe80::222:5fff:fe9b:24b5/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:715460 errors:0 dropped:0 overruns:0 frame:0 TX packets:694246 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:493539292 (493.5 MB) TX bytes:235159393 (235.1 MB) wlan1 Link encap:Ethernet HWaddr 00:c0:ca:42:14:62 inet addr:192.168.100.102 Bcast:192.168.100.255 Mask:255.255.255.0 inet6 addr: fe80::2c0:caff:fe42:1462/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:171053 errors:0 dropped:0 overruns:0 frame:0 TX packets:181363 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:74094659 (74.0 MB) TX bytes:59474204 (59.4 MB) iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off wlan1 IEEE 802.11bg ESSID:"Zia" Mode:Managed Frequency:2.412 GHz Access Point: 00:0D:F0:9C:A6:18 Bit Rate=54 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-31 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:204 Invalid misc:6610 Missed beacon:0

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• How can I download the source code for linux-image-3.2.0-24-generic?

  - by keepitsimpleengineer

  The directions at Ubuntu Wiki apt-get source linux-image-$(uname -r) and askubuntu question Where can I find the source code for the Ubuntu Kernel? don't work… sudouser@64bitws:~# uname -r 3.2.0-24-generic and sudouser@64bitws:~# apt-get source linux-image-3.2.0-24-generic Reading package lists... Done Building dependency tree Reading state information... Done Picking 'linux' as source package instead of 'linux-image-3.2.0-24-generic' E: Unable to find a source package for linux

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• Post 12.04 Update, stuck on splash screen

  - by Lawrence

  I updated to 12.04 a couple of weeks ago and I haven't started up Ubuntu until now. On start up the computer gets stuck on the splash screen. I am a beginner in all of this linux mechanics. I've seen many people post about relatively the same problem but I have a hard time following. I am using Wubi and running it along side Windows Starter on a Toshiba netbook. Thanks for bearing with my unfamiliarity haha,

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• Kernel error during upgrade due to "/etc/default/grub: Syntax error: newline unexpected"

  - by Patrick - Developer

  Summary: linux-image-3.5.0-2-generic upgrade to linux-image-3.5.0-3-generic The default Ubuntu 12.04 update is generating the following error for weeks (the link below). Obs.: I'm using default update of Ubuntu 12.04 ie, apt-get update. log error: https://gist.github.com/3036775 Overall he is trying to do the following: upgrade the "linux-image-3.5.0-2-generic upgrade to linux-image-3.5.0-3-generic" and the error always, always. What to do?

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• Storing application preferences and data

  - by Rudi Strydom

  I am looking at creating some Ubuntu applications, but finding good resoures are hard. I am using the quickly toolkit, but would really like some more insight. How does one normally store application preferences and settings in Linux / Ubuntu. Is it as simple as creating a XML file and saving the information and then reading from said file on application bootstrap? If someone can point me in a direction it would be greatly appreciated.

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• Migrate ldap to another server

  - by user3215

  I have ubuntu(8.10) ldap server running. I am migrating from my old servers to ubuntu 10.04.2 server and I have set up almost all freshly on the new servers. How could I perfectly migrate ldap to the new server after installing ldap?. I found the following to export and import ldap in the google: slapcat -l master.ldif slapadd -c -l master.ldif Is there anything I've to do before/after using those commands?. Any precautions?

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