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• Problems bringing up a second virtual network interface

  - by tubaguy50035

  I'm having issues adding a second IP address to one interface. Below is my /etc/networking/interfaces # The loopback network interface auto lo iface lo inet loopback #eth0 is our main IP address auto eth0 iface eth0 inet static address 198.58.103.* netmask 255.255.255.0 gateway 198.58.103.1 #eth0:0 is our private address auto eth0:0 iface eth0:0 inet static address 192.168.129.134 netmask 255.255.128.0 #eth0:1 is for www.site.com auto eth0:1 iface eth0:1 inet static address 198.58.104.* netmask 255.255.255.0 gateway 198.58.104.1 When I run /etc/init.d/networking restart, I get a fail error about bringing up eth0:1: RTNETLINK answers: File exists Failed to bring up eth0:1. Any reason this would be? I didn't have any problems with I first set up eth0 and eth0:0.

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• Linux : How to convert media files to DVD format and burn?

  - by James.Elsey

  I have a load of media files on my PC, mostly AVI/MKV and some mpegs. On windows, I would use ConvertXToDVD to convert these to DVD format, and to burn to disc. That application also lets you save a bit of space on the DVD to put the original file in its AVI format on as well. How can I do this on linux? What are the alternatives to this Windows application? I could try to run ConvertXtoDVD under wine but I would prefer to find a native linux solution Thanks in advance!

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• Windows 7 BSOD, safe mode working,

  - by mil0ck

  I need help getting my dualboot with Windows 7 and Ubuntu 12.04 to work, and since I'm not to experienced with computers I've been pretty dumb. Here's what I've done, quite shortend though: First removed a Ubuntu 10.04 partion, and replaced bootloader using EasyBCD Installed Ubuntu 12.04 on same partion as before Decided I need more space so I shrinked my C: partion (Windows partion) using Here, after rebooting my computer, I was stuck a grub rescue, when booting up the computer I fixed that by using SuperGrubDisk Rescatux and then using my Windows Vista install disk to repair the computer (computer is using Windows 7) I know re-installed Ubuntu 12.04 on the linux partion and got the GRUB-bootloader working Then, after using my computer for several hours, I installed beta drivers (version 304.79) for my GeForce GTS 240 and then rebooted my computer. At the first boot (after reboot) my computer just crashed, and here I am When trying to boot Windows 7 now I get a Blue Screen Of Death. I can though boot in to safe mode with everything working. I have uninstalled the beta drivers and installed the same one as before but still the same problem. I have tried all the commands in Bootrec.exe and none is working. I can't neither find an OS when using Bootrec.exe/ScanOs. I have also tried running: sfc/scannow and that comes out clean. Short: My harddrive and files seems to be intact but when booting I get bluescreen. I can though boot in to safemode with everything working. I need help Thanks to anyone who even took the time to read that. //mil0ck

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• Dual boot Windows 8 and Ubuntu 12.10 across a reboot

  - by AK4749

  My Setup: I have two separate SSDs, and each contains an independently bootable OS - W8 and U12.10. From my extremely limited knowledge, this means each has a functioning EFI partition(?). My default boot order (GA-Z68XP-UD3P mobo with UEFI firmware update) boots the UEFI partition containing windows first, but if I enter the BIOS I can select the "ubuntu" entry to successfully boot ubuntu. Both drives are GPT, and are EFI boots. What I want to do: Reboot Windows 8, re-enter W8 (this is happening now due to the default boot order). What I want to change, however, is to boot into Ubuntu if i reboot from ubuntu. Essentially, I would like to work within one OS unless I consciously choose otherwise. Normally, I would not even ask to something I thought was impossible, but... Why I think this is possible: When trying EasyBCD to add ubuntu to the W8 UEFI bootloader, I noticed an "iReboot" addon or something that allows you to select which OS to boot into from within the OS. Note that I ended up not using the NeoGrub entry to chain Ubuntu off the W8 bootloader because I couldn't get much help with it. Is this possible? Have I had too much coffee and gone insane? Thank you all for your time, AK

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• Reasons for Wi-Fi to be slower on Ubuntu compared to Windows?

  - by den-javamaniac

  I'm using 64-bit Ubuntu 12.04 and Windows 7 64 bit – dual boot on the same computer. Connecting to the same wireless network. And it turns out that on Windows I get a more stable and stronger signal than on Ubuntu. To my knowledge there's a router which serves as a gateway and then there's a cable connected to the router which goes further to ISP, so the results for both OS should be the same. I've tested the issue on both OSs at various times and it gave me the same result. The question is why? Why Ubuntu networking is worse than that of Windows?

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• Port Forwarding Using iptables on Ubuntu

  - by user141610

  This is the scenario. I have configured a web-server in MUX. Now I want to access that web-server from Internet. Ubuntu box has two interfaces, One is connected to WAN (Public IP) and another one is connected to MUX (Private IP). MUX has no option to insert default gateway. iptables -t nat -A PREROUTING -p tcp -i eth0 -d 103.x.x.x --dport 8001 -j DNAT --to-destination 192.168.1.2:8080 iptables -A FORWARD -p tcp -d 192.168.1.2 --dport 8080 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT It does not work. Thanks...

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• Ubuntu 12.10 sources.list empty after install

  - by Martin Nielsen

  I recently installed the Ubuntu 12.10 server version from a USB stick. The step "Install additional software" or whatever keeps failing, so i though screw it and continued. Everything else worked like a charm. I thought. Turns out, the only two entries in my sources.list are the install CD. This means that i have no way of getting a.. well.. anything installed. Can someone give me a short list of repositories that i need so i can put them in the file? And on a similar note: What is the comment character for the sources list? #?

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• Authentication error in LTSP client

  - by sat

  I am building a LTSP server with LDAP authentication for LTSP Clients. I have configured LDAP server also. When I try to login from LTSP client in GUI, I am getting No response from server, restarting. Then, It's restarting the GUI and comes to the login screen again. I thought that there could be a problem with LDAP authentication. But, When I try to login from Alt+Ctrl+F1 terminal in LTSP client, it is logged in successfully with LDAP user. LDAP Server and authentication is working fine. Even, after executing the below commands, still I am getting the same error. ltsp-update-sshkeys ltsp-update-kernels ltsp-update-image --arch i386 Whether I need to configure anything for GUI login from LTSP Client? How to fix this issue?

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• ImageMagick convert to png32, can't change background at all

  - by Doug

  So I'm stumped. I've been wrestling with this simple command to turn an SVG file into a transparent SVG to no avail. Here's my command convert svg:/home/media/svgTest.svg -quality 100 -background none -size 3300x3300 png32:/home/media/pngTest.png The PNG comes out fine, but the background is white. Upon further investigation - the PNG's background is white no matter what I set the -background option to. I've tried black, tomato4, and even various hex colors. Nothing - just white. My SVG has no background fill layer or anything like that, it's just a couple of blue path layers. Also, I am running ImageMagick v 6.6.9-7 on Ubuntu 12.04 Lts What am I doing wrong? Thanks

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• How to update debian dns server? New VM with same hostname as old VM

  - by opensourcechris

  We run several linux VM's on our Hyper-V cluster. Our old IT manager configured the dns server to resolve the url 'devlabs.ourdomain.com' to a debian squeeze apache webserver hosted on the hyper v cluster with the hostname: devlabs. We recently created a new Ubuntu vm to replace the original squeeze vm. When we created the new Ubuntu VM we used the same hostname of 'devlabs" to name the new VM. My problem is that now I am only able to access the new Ubuntu VM by using the IP address. How can I update our DNS server to point the url 'devlabs.ourdomain.com' to the new VM?

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• Access a windows dynamic hard drive through a virtual machine on ubuntu?

  - by Enigma

  I have a Windows 7 OS and am thinking about transitioning to a dual boot set up with Ubuntu 12.04. From what I recall, it is not possible to natively access Dynamic Windows Partitions in a Linux OS. My thought is that it might be possible to have a virtual machine (running windows) installed within Ubuntu access the physical dynamic drive. The problem comes to whether VMWare can access the physical disk "high enough" to be able to mount it within the windows virtual machine as a native device or if it gets passed through from the native Linux OS. This is really the only thing holding me back from switching to a dual-boot set up as the dynamic disk is made up of 4 or 5 hard drives and I would very much like access to the data on both OS's. Alternatively, is there another solution for combining multiple physical hard drives into one virtual hard drive that would be readable on both OS's?

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• VirtualBox with Ubuntu Server guest can't ping outside

  - by Danidan

  Here's my situation: an Ubuntu 12.04 Host running VirtualBox; two guest VMs running Ubuntu Server 12.04 home network, so my Host pc has a wireless connection to the router of my ISP. My problem is in one of the virtual machines: it has 3 NICs, one in NAT mode and the others in Host Only mode. My purpose is to use eth0 (NAT) for Internet access and eth1, eth2 (Host Only) for management of internal virtual network (eth1 uses a VBoxNet with this IP 192.168.69.254). Whenever I try to $ping 8.8.8.8 I get Destination Host Unreachable. While if I $ping 192.168.69.10, that is the IP of the other VM, it works. I can't also ping my Host nor my router My /etc/network/interfaces file is: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet static address 192.168.69.1 netmask 255.255.255.0 auto eth2 iface ifconfig $IFACE 0.0.0.0 up up ip link set $IFACE promisc on down ip link set $IFASE promisc off down ifconfig $IFACE down $route -n returns: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.0.2.2 0.0.0.0 UG 100 0 0 eth0 10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.69.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 Forgetting for now what eth2 needs to do and its setup, why I can't go outside the Host box? What can I do to help you helping me? :-)

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• MySQL won't start, reinstall fails on Ubuntu 12.04

  - by Evils

  My problem started yesterday night when I tried to change the my.cnf config on my ubuntu 12.04 x64 System. I simply tried to changed the bind-address parameter from 127.0.0.1 to 0.0.0.0. A simple restart after a reboot gave this error: stop: Unknown instance: start: Job failed to start I tried to start mysql then by using 'mysqld' which outputs this: 130701 11:05:59 [Note] Plugin 'FEDERATED' is disabled. mysqld: Table 'mysql.plugin' doesn't exist 130701 11:05:59 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 130701 11:05:59 InnoDB: The InnoDB memory heap is disabled 130701 11:05:59 InnoDB: Mutexes and rw_locks use GCC atomic builtins 130701 11:05:59 InnoDB: Compressed tables use zlib 1.2.3.4 130701 11:05:59 InnoDB: Initializing buffer pool, size = 128.0M 130701 11:05:59 InnoDB: Completed initialization of buffer pool 130701 11:05:59 InnoDB: highest supported file format is Barracuda. 130701 11:05:59 InnoDB: Waiting for the background threads to start 130701 11:06:00 InnoDB: 5.5.31 started; log sequence number 1595675 130701 11:06:00 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 130701 11:06:00 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 130701 11:06:00 [Note] Server socket created on IP: '127.0.0.1'. 130701 11:06:00 [ERROR] Can't start server : Bind on unix socket: Permission denied 130701 11:06:00 [ERROR] Do you already have another mysqld server running on socket: /var/run/mysqld/mysqld.sock ? 130701 11:06:00 [ERROR] Aborting 130701 11:06:00 InnoDB: Starting shutdown... 130701 11:06:00 InnoDB: Shutdown completed; log sequence number 1595675 130701 11:06:00 [Note] mysqld: Shutdown complete Meanwhile I already tried to reinstall and purge the complete mysql package which results in another error which says that dpkg cant change the admins password. While this error appeared another error came with it. When trying to install something new with apt, it always says 'fopen: permission denied' right after it tries to update my man-db. This is my dmesg output: [ 6879.687998] type=1400 audit(1372669683.397:36): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=9336 comm="apparmor_parser" [ 6881.323215] init: mysql main process (9340) terminated with status 1 [ 6881.323316] init: mysql respawning too fast, stopped Any help will be appreciated as this is a productive server which renders useless without mysql.

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• My VPS ubuntu server is very slow

  - by askmike

  I just installed a frech copy of Ubuntu 12.04 on my vps because my old installation was very slow, unfortunately this did not fix the problem. With slow I mean requests for my PHP websites take a long time, very slow (30 sec per request) to slow (3+ sec per request). When it's really bad SSH is also laggish. The websites are: askmike.org (pretty standard Wordpress) mvr.me (own PHP) slow? very slow: Here is a picture of loading a clean install of wordpress slow: here is a picture of loading a small PHP based website the vps The VPS has 256mb ram and an 25GB hdd. Besides serving the 2 small websites it isn't doing anything AFAIK. What have I installed Clean Ubuntu server 12.04 LAMP stack few things like git and nodejs (not using both) ossec (because I thought my server was getting hammered) munin What I already tried / done I installed munin so that I could watch io speed and such. The problem is that I don't know where to look for in the munin report. I checked logs and don't see anything strange (although I don't really know where to look for besides strange / repetitive errors and GET requests). I configured Apache MPM to: <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 40 MaxRequestsPerChild 0 </IfModule> (apache is using prefork, the default) Stats I copied the munin report as it appeared at 4:50 last night to a site hosted on a shared webhost. Note that tonight my mysql crashed somewhere after 1:00 (which is a new problem altogether), so therefor the graph for last night might look strange. Can anyone help me get my VPS up to normal speed? EDIT: Thanks for the replies. The VPS is 10 bucks a month and is from directvps.nl (Dutch host and I'm also dutch). I did two speed tests for disk IO: $ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 1073741824 bytes (1.1 GB) copied, 23.1506 s, 46.4 MB/s $ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 1073741824 bytes (1.1 GB) copied, 39.3796 s, 27.3 MB/s Anyway: how can I prove to my VPS host that it is to slow? I can understand a server being busy slowing a website down. But 5-30 sec loadtime for a normal PHP webpage?

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• Apache2 403 permission denied on Ubuntu 12.04

  - by skeniver

  I have a sub-directory in my /var/www folder called prod, which is password protected. It was all working fine until I asked my server admin to help me set up allow all access to one particular file. Now the entire folder is just giving me a 403 error. This is the sites-enabled file: <VirtualHost *:80> ServerAdmin [email protected] # Server name ServerName prod.xxx.co.uk DocumentRoot /var/www/prod <Directory /var/www/prod> Options Indexes FollowSymLinks MultiViews +ExecCGI Includes AllowOverride None Order allow,deny AuthType Basic AuthName "Please log in" AuthUserFile /home/ubuntu/.htpasswd Require valid-user </Directory> <Directory /var/www/prod/xxx/cgi-bin/api.pl> Allow from All Satisfy Any </Directory> ScriptAlias /xxx/cgi-bin/ /var/www/prod/xxx/cgi-bin/ ErrorLog ${APACHE_LOG_DIR}/prod.xxx.error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/prod.xxx.access.log combined </VirtualHost> Now he's unsure why this is blocking me out completely. No permissions have been changed, but this is the /var/www/ folder: 4 drwxr-xr-x 2 root root 4096 Jan 3 21:10 images 4 drwxr-sr-x 4 root www-data 4096 Mar 31 14:47 jslib 4 drwxr-xr-x 7 root root 4096 Jun 2 13:00 prod When I try to visit http://prod.xxx.co.uk, I don't get asked for the password; I just get 403'd I hope I've given enough information... Anyone able to spot something he can't?

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• Write hash password to LDAP when creating a new user

  - by alibaba

  I am working on a project with a central user database system. One of the requirements of the system is that there should be only one set of users for all the application. FreeRADIUS and Samba are two my applications that both use LDAP as their backend. Since users must be the same for the entire system that contains many other applications, I have to read the list of users from the central database and recreate them in the LDAP directories for Samba and FreeRADIUS. The problem is that users are sent to me from another entity and I can save them in the database with their hash passwords. I don't have access to their cleartext passwords. I am wondering if I could enter directly a hash password for a new user in LDAP with my preferred hash mechanism. If not, can any one tell me what strategy I have to use? I am running my server on UBUNTU 12.04 and all other applications are the latest versions. My database system is PostgreSQL 9.2. Thank you

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• output redirection not happening completely

  - by Gaurav

  I am running the following command on ubuntu 12.04 bash shell: hping3 -S -p 80 -c 30 www.google.com >> outputfile.txt But the problem is that this leaves some lines in the end and doesn't copy in the file. I even tried hping3 -S -p 80 -c 30 www.google.com >> outputfile.txt 2>&1 It also gives same problem. However this works perfect: ping -c 30 www.google.com >> outputfile.txt Any idea about what I might be missing?

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• Ubuntu 12.04: Unable to add or delete a user named 'mysql'

  - by Afaque H

  I am trying to install MySql on Ubuntu 12.04 but the installation is failing with the error: "Can't change to run as user 'mysql'. Check if the user 'mysql' exits." So I go ahead type in the command : 'cat /etc/passwd | grep mysql' and result is null. I try to add a user 'mysql' by issuing the command 'useradd mysql'/. But it fails with the message: 'useradd: user 'mysql' already exists'. When I try to delete the user 'mysql' using the command 'userdel mysql' it also fails with the message "userdel: cannot remove entry 'mysql' from /etc/passwd." Can anyone explain me what's going on and suggest a solution.

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• Linux cannot alter partition table of main hard disk of my laptop

  - by djechelon

  I run openSUSE 12.2 on my ASUS N76VZ laptop. My problem is that I cannot alter the partition table of first hard disk /dev/sda1. YaST partitioner says it's unreadable, but actually it can read it but not alter it. It doesn't tell me anything else, except that I can wipe the partition table (having to reinstall Windows for the third time). Since I want to create new partitions on that disk, how do I fix the partition table layout? I could create new partition from Windows Computer Management and format them in Linux. I could do this, but it doesn't explain the problem

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• SSL on app - nginx web server

  - by Adam

  I am running an nginx web server where I redirect all http requests to https (with a self signed cert). Here is how I REDIRECT all http requests to https in the nginx config file: server { listen 80 default_server; listen [::]:80 default_server ipv6only=on; server_name my.server.ip; return 301 https://$server_name$request_uri; Problem is - I cannot seem to do so for an app running on a port. Example: http://my.server.ip:1234 does not redirect to https://my.server.ip:1234 ir works fine on all other urls like http://my.server.ip/temp etc. How can I modify the nginx config file to force that app url through ssl?

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• Apache update to 2.2.23 on ubuntu 12.04 LTS

  - by user1802200

  We had done a PCI scan on one of our servers running Ubuntu 12.04 LTS with apache 2.2.22.The scan reported a vulnerability in apache 2.2.22 (Apache HTTP Server Zero-Length Directory Name in LD_LIBRARY_PATH Vulnerability).The report states to updgrade the version to the latest stable release of either 2.2.23 or 2.4.2.How do I upgrade to the 2.2.23 to fix the vulnerability or is there a patch available that can fix this and if yes can you let me know how that can be patched. Also is the latest version of apache2.2.22 available for ubuntu 12.04 LTS patched with the fix for **Apache HTTP Server Zero-Length Directory Name in LD_LIBRARY_PATH Vulnerability** Regards, Salil Phatak India

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• Can't set session.http_only for php under Plesk 11

  - by TheFoOL

  I want to enable session.cookie_httponly for my domain. I added these lines for my domain (in additional configuration directives): session.cookie_httponly = On error_log = error.log Error log works fine (a file is created) whereas session.cookie_httponly doesn't (according to phpinfo()). But why not? I use Plesk 11 on Ubuntu Server 12.04. PHP as FastCGI. PHP 5.3.10-1ubuntu3.4. Safe mode is off. Domain is associated to a dedicated IP address. Website powered by Joomla 2.5.7.

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• Google Chrome 20 fails to start in ubuntu 12.04

  - by criziot

  Several days ago Google Chrome stoped working after an update. If I start it in the terminal I can see the following output: [6:6:4528137750:FATAL:sandbox_init_linux.cc(378)] prctl(PR_SET_NO_NEW_PRIVS) failed: Invalid argument Any idea how to solve this? Chrome version: 20.0.1132.47 Ubuntu: 12.04 x64 Kernel: 3.2.0-21-generic #34-Ubuntu EDIT: It is possible to start chrome with --no-sandbox switch.

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• package manager cannot create users? installation script fails?

  - by RapidWebs

  It seems that when trying to install any package which requires the creation of a system User and Group, the installer fails with the error: install: invalid user 'username' When it happened the first time, I assumed it was related to the package, or it's installation script. But now I am attempting a different package, and alas, the same issue arises! note: /etc/passwd and /etc/group is not chattr -i Here is the example output from an attempted installation (of varnish): Selecting previously unselected package varnish. Unpacking varnish (from .../varnish_3.0.2-1ubuntu0.1_amd64.deb) ... Processing triggers for man-db ... Setting up libvarnishapi1 (3.0.2-1ubuntu0.1) ... Setting up varnish (3.0.2-1ubuntu0.1) ... install: invalid user `varnish' dpkg: error processing varnish (--configure): subprocess installed post-installation script returned error exit status 1 Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: varnish note: running ubuntu 12.04 For now, I have resolved the issue by manually creating the users, and running apt-get install -f, but this does not resolve the actual issue. Any ideas?

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• My PC suddenly reboots

  - by ChocoDeveloper

  Yesterday I opened my PC hub (after like, 5 years) to add more RAM and a new HDD. It was full of dust and balls of fluff, so I cleaned it a bit by blowing. I also removed the fan that was attached to the motherboard (I think it's there to cool the processor) and I cleaned it also by blowing and with a paintbrush, then put it back where it was (it had 4 weird plastic screws, it wasn't easy). Then I added 2 x 2Gib of RAM (Kingston 1333MHz), and the new HDD (Western Digital Caviar Blue 1TB SATA 3). I couldn't find another wire like the one my first disk had, which was thicker, but there was one that was more flat, so I plugged it and it worked fine (I also plugged the wire that I think is for the data, which looks like many little wires glued together). I'm running Ubuntu 12.04, and in the new disk I've just installed Windows 7. Between yesterday and today, two reboots ocurred while working on Ubuntu. I haven't used Windows 7 that much so I don't know if it will happen there too. So where can I begin to debug this?

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