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• rkhunter warns of inode change by no file modification date changes

  - by Nicholas Tolley Cottrell

  I have several systems running Centos 6 with rkhunter installed. I have a daily cron running rkhunter and reporting back via email. I very often get reports like: ---------------------- Start Rootkit Hunter Scan ---------------------- Warning: The file properties have changed: File: /sbin/fsck Current inode: 6029384 Stored inode: 6029326 Warning: The file properties have changed: File: /sbin/ip Current inode: 6029506 Stored inode: 6029343 Warning: The file properties have changed: File: /sbin/nologin Current inode: 6029443 Stored inode: 6029531 Warning: The file properties have changed: File: /bin/dmesg Current inode: 13369362 Stored inode: 13369366 From what I understand, rkhunter will usually report a changed hash and/or modification date on the scanned files to, so this leads me to think that there is no real change. My question: is there some other activity on the machine that could make the inode change (running ext4) or is this really yum making regular (~ once a week) changes to these files as part of normal security updates?

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• Resolution changes when using switch

  - by Edward D

  So, the "real" resolution of my monitor is 1024x768. That's what I'd use on my docked Windows laptop, and what I'd use on my Xubuntu desktop connected directly. When I connect a switch, to switch between the two, however, the ubuntu machine's resolution changes. Everything's still proportional, and it still thinks it's doing 1024x768, but the icons and fonts appear larger. Not 800x600 larger, but still big. When I used Xubuntu Precise, I created an xorg.conf file to set a resolution of 1280x1024 which made it look the way it does without the switch ... as a workaround. When I upgraded to Trusty, I lost this. I tried to re-create it, but doesn't seem to load my file. Ideally, I'd like to correct the original problem, but I'd settle for being able to up the resolution. I searched for a while, and tried to do it, but I'm giving up ... please help me out. Controller: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 04) Monitor: NEC MultiSync LCD 1850e http://www.necdisplay.com/documents/UserManuals/LCD1850E_manual.pdf OS: Xubuntu 14.04 Trusty /etc/X11/xorg.conf: # YOU CREATED THIS FILE # sudo leafpad /etc/X11/xorg.conf Section "Device" Identifier "Configured Video Device" EndSection Section "Monitor" Identifier "NEC LCD1850E" # I found Synchronization Range at: # http://www.necdisplay.com/documents/UserManuals/LCD1850E_manual.pdf HorizSync 31.0-82.0 VertRefresh 55.0-85.0 EndSection Section "Screen" Identifier "Default Screen" Monitor "NEC LCD1850E" Device "Configured Video Device" SubSection "Display" Depth 24 Modes "1280x1024" "1280x960" "1024x768" "800x600" "848x480" "640x480" EndSubSection EndSection

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• How do I force Wubi to install a 32-bit version?

  - by marx

  I'm using Windows 8 (32bit) customer preview and installing WUBI Ubuntu 12,04.1. I down loaded 32 bit installer from ubuntu dot com, The wubi installer says AMD 64 xt. I had a previous 12,04 install and in the terminal typed in uname -a, it say's 64 bit. I also opened detail from the system and it read 64 bit system. My question is: how to ensure that a windows/wubi/ubuntu/installer is 32 bit or 64 bit BEFORE making a commitment to install from the wrong wubi install? After posting this I did another wubi installation. Signed into ubuntu, opened system settings, open Details: OS Type 64 Bit. Why is it doing this? I have a 32 Bit machine: Toshiba Satellite A-215 S5818 (previous Windows Vista)<--wiped clean. from an earlier installation of Ubuntu 10.10 which worked, in feb 2012 i installed Win8 Customer Preview Release (32Bit) which took over the BOOT order and 140 GB Hard Disk. I am trying patiently to install WUBI 32 BIT Ubuntu 12.04 Install, it keeps returning 64 BIT install.. Why?? I should also mention that i was successful in a dual boot install ubuntu 10.04/win8 32 bit install and upgraded to 12.04 which is fine for now, but i want a win8/wubi/ubuntu12.04 32 bit working not 64 bit breaking what i have. thank you.

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• Cannot access the filesystems using LiveCD (LVM2,EXT2)

  - by ftkg

  I have to restore the /etc/passwd file I accidentally renamed in my Ubuntu Server, so I booted the machine using a LiveCD. Problem is, the system filesystem does not appear in Nautilus, under 'Devices'. Am I missing anything? ubuntu@ubuntu:~$ sudo fdisk -l 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: 0x000956dc 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 ubuntu@ubuntu:~$ mount /cow on / type overlayfs (rw) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) /dev/sr0 on /cdrom type iso9660 (ro,noatime) /dev/loop0 on /rofs type squashfs (ro,noatime) 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) tmpfs on /tmp type tmpfs (rw,nosuid,nodev) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) gvfs-fuse-daemon on /home/ubuntu/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=ubuntu) ubuntu@ubuntu:~$ sudo blkid /dev/loop0: TYPE="squashfs" /dev/sda1: UUID="aad69790-198d-45bc-9ccd-e4cba7456914" TYPE="ext2" /dev/sda5: UUID="wbIDX7-RILL-VtFT-gX15-N1GJ-Yyfg-V8Oe5m" TYPE="LVM2_member" /dev/sr0: LABEL="Ubuntu 12.04 LTS i386" TYPE="iso9660" ubuntu@ubuntu:~$ cat /etc/fstab overlayfs / overlayfs rw 0 0 tmpfs /tmp tmpfs nosuid,nodev 0 0

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• Cursor seems to freeze in the first attempt of typing - Unity 3D, 12.04

  - by Denis

  It happens in the first attempt of typing, no matter is after the startup, or 5 minutes later, or then after. The cursor (or maybe it's the system) seems to freeze, no matter the application I use, taking up 5 sec to appear what is typed. Subsequently, everything is normal, using another applications. @Anwar Shah suggested it could be a daemon waiting to run before the lauching of the first application. Turning off Zeitgest didn't help. It occurs only with Unity-3d. Tested with Unity-2d, everything is fine. Tried to change some Compiz settings, nothing worked, although not tested with every single parameter. Also I deactivated Ati proprietary driver, no effect. My system: AMD E350 1.6Gh, 2G-Ram, ATI graphics - Ubuntu 12.04, 64bits. Update 1: the cursor is blinking normally before I start typing. After the first character (which is not showed), seems to freeze, taking 5 seconds to get normal again. Very annoying, specially when you want to access login sites. Update 2: I tested on a different and old machine (Athlon 64 4800 x2, 4Gb ram, no problems - takes 2 seconds, acceptable. I think it could be related to my specific hardware (Samsung RV415), but not sure about it. Anyone experiencing something similar? Is that what I should expect, or can be fixed or improved? Thanks.

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• How do I revert back to official Linksys firmware from dd-wrt on WRT56G2 v1?

  - by Chris Moore

  I've been having trouble with dd-wrt on my Linksys WRT56G2 v1 router and want to go back to the stock Linksys firmware for it. The router has only 2MB of flash memory, and so I'm running the 'micro' version of dd-wrt. My question is what is the best way to do that? I could use the http://router/Upgrade.asp dd-wrt "firmware upgrade" web interface to do it, in which case there's a dropdown menu choice for "After flashing, reset to": "don't reset" or "reset to default settings". Which should I pick? Some people say that I should use a program called tftp.exe instead. I can probably gain access to a Windows machine if this is necessary. Which of these is the way to proceed? I don't want to brick the router if at all possible! Note: I used the 'wrt54g' tag because I wasn't allowed to create a 'wrt54g2' tag due my low rep here.

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• How to debug suspend?

  - by mlissner

  I've been using Ubuntu for about five years now, and I still can't make it suspend when I want to. It's quite irritating that I can program up a storm, hack the machine in numerous other ways, and yet, and yet when I try to make it suspend or debug suspend, I fail miserably. I need help. Where do I begin to find the problem? What do I do to fix it? I'm placing a bounty on this, because I've literally lost hours of my life to this problem, and leaving my computer on ALL the time is terrible. The symptoms: Pressing suspend brings my computer to a state where it has a blinking cursor, the fans are running, it seems that the HD has turned off (I think), and I can't do anything to bring it back from this state (short of a hard reboot). Possibly related: My fans stay on even after a shutdown, and even then, I have to press the power button for five seconds before I can start it up again. I don't know what logs to look at to debug the problem, and I imagine they'd get nuked on reboot anyway. Please, please help. This drives me completely nuts, and I've been living with it for over a year.

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• how can I pass an environment variable through an ssh command?

  - by Ross Rogers

  How can I pass a value into an ssh command, such that the environment that is started on the host machine starts with a certain environment variable set to my choosing? EDIT: The goal is to pass the current kde desktop ( from dcop kwin KWinInterface currentDesktop ) to the new shell created so that I can pass back an nfs locations to my JEdit instance on the original server which is unique for each KDE desktop. ( Using a mechanism like emacsserver/emacsclient) The reason multiples ssh instances can be in flight at one time is because when I'm setting up my environment, I'm opening a bunch of different ssh instances to different machines.

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• Reporting Services 2008 & 2012 side by side

  - by Iulian Ilies

  I have installed Sql Server 2008 & 2012 side by side on the same machine, and that's includes the reporting service for each. Both are instances are named instances: MSSQLSERVER2008 and MSSQLSERVER2012. I didn't configure the 2008 one but configured 2012 first and this one is working fine. However later on when I wanted to configure the 2008 reporting service instance I was not able to do so; it simply cannot find it. Both services are displayed as running, nevertheless while being in Reporting Services Configuration Manager only the 2012 instance is displayed. I tried stopping the 2012 but still no luck, 2008 won't show up in the RS configuration manager. Any suggestions? Thanks in advance Iulian

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• Technicolor TG582n with external DHCP server [on hold]

  - by Jack

  We have a small home setup with a Technicolor TG582n on Plusnet ISP. We have a Samba4 DC with DNS forwarding enabled. The DC forwards to the Technicolor. However, the client machines have their DNS settings manually set. This is an annoyance when using laptops on other networks. We would like to have DHCP handled on the server machine, such that when a client connects to the Technicolor, it gets its IP and DNS information from the DHCP server, eliminating the need to manually set adapter DNS settings. However, I cannot find an option to disable DHCP on the Technicolor and am not completely clear on how one would point DHCP services to the server from the Technicolor if there were the option. So, how would one make the Technicolor use an external server for DHCP leases?

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• DoubleCommand Non-Functional on 10.6.3.

  - by Tim Visher

  I have a 1st or 2nd generation MacBook running 10.6.3. I want to remap my enter key to Ctrl and my right option key to enter (Emacs… yeah) and DoubleCommand seems to be precisely what the doctor ordered. Unfortunately, after having installed the latest version, it seems to be doing absolutely nothing. The correct settings are saved and active, but none of the remapping is taking effect. Are there any known issues with other OS X plug-ins (I run pretty heavily modified) or extensions that I should be aware of? What could the issue be? I initially tried to set only the User settings and then logged out and logged back in but nothing happened. I then tried saving them to System as well and logged out and in and nothing. Then I restarted the machine… twice… and nothing happened. Thanks in advance!

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• Upgrade went wrong, laptop essentially 'bricked'

  - by hexagonheat

  I have an old netbook I was trying to upgrade from 10.04 to 10.10. Ubuntu was in the process of upgrading when everything completely froze. I left it sit for an hour but it would not respond to anything. So I powered down the machine and it didn't have the necessary files to run Ubuntu. I went to the terminal and it told me to put in some command that I can not remember to 'rebuild' something. That takes me to now, when I turn on the laptop it comes up with a screen "GNU GRUB version 1.98+20100804-5ubuntu3.3" and has a bunch of options such as: 1. Ubuntu, with Linux 2.6.35-32-generic 2. Ubuntu, with Linux 2.6.35-32-generic (recover mode) etc. (there are like 15 of these with different numbers after 2.6.35 and the word 'generic'. It doesn't seem to matter what I pick, it will go to the "Ubuntu" loading screen with the colored dots but then every time it will freeze and I have to reboot to the same thing. I can't seem to get a terminal prompt anywhere either. Any ideas? I can't think of what to do :(

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• Optimal Configuration for five 300 GB 15K SAS Drives

  - by Bob

  I recently acquired an HP Z800 workstation that has five 300 GB 15K SAS Drives. This system will be dedicated to running multiple virtual machines under VMware Workstation (Note: I'm not using ESXi because I do plan to use the system for other purposes.). For the host OS, I plan to install RHEL 5. My number one concern is guest performance. For example, should I create a RAID 10 array for the OS and virtual machine storage with four of the drives and reserve the 5th? Or, is there a solution that will provide better performance?

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• Automatic Login after a Remote Desktop connectio

  - by carlesso

  Hi all. I need to connect via remote desktop to a Windows XP machine (logging out the current user), do some stuff, and then logout the rdesktop session and having a user X which log in (from the front-end I mean). I try to be clearer: I've some windows XP machines which offers some interactive informations in public places. I need to rdekstop them to do some assistance, and then I'd like to logout and have the main user (the one which offers the service) logged back. I know there's a command for the windows prompt to achieve this, but cannot find it out!

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• Dual boot Windows 8 and Ubuntu?

  - by askvictor

  I've installed Windows 8 on a machine (lenovo x220 laptop) with Ubuntu 12.10 already installed on another disk. I am guessing that Windows 8 has convinced the laptop to switch to UEFI boot (rather than the BIOS boot that was there previously) as the Lenovo splash screen on startup now no longer has the options to interrupt the boot process (e.g. to choose the boot drive). Previously I had Windows 8 on one drive and Ubuntu on the other drive, so could choose my OS through the BIOS rather than through grub or other bootloader but now no longer have that option. How can I get back the option to boot Ubuntu? I would sort of prefer UEFI boot as it seems much faster than BIOS.

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• How do I set zone priority in Microsoft DNS?

  - by Justin

  I have a standard small network setup (20 users) on Active Directory. All Windows machines have a primary DNS server as the AD and a secondary DNS server as Google PDNS. I want to setup a DNS entry that exists in real DNS but set it up on our DC so that local requests would route this public domain to a local development machine on the network. I setup the zone in DNS which results in the clients resolving the public FQDN to our internal IP. However, sometimes it still resolves to the "real" value (I check by pinging it). Is there some way to give the zone definition in my DC DNS higher priority? Or will the client that has secondary public DNS always at sometimes have a competing entry for this zone?

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• recent unreliable wireless connection with Netgear KWGR614 router

  - by gabkdlly

  Recently, my internet connection over wireless ( via a Netgear KWGR614 router ) has become unreliable, on both a Dell laptop running Ubuntu 10.04 as well as my Desktop running Ubuntu 10.10 . The problem does not seem to occur on a laptop running Windows Vista, nor on a Desktop running Windows 7 ( this machine is connected with an ethernet cable ). The problem does not seem to occur on my Openmoko Freerunner ( running Android 1.5 ), though I hardly ever use this device to connect over WLAN, so the problem may have just slipped by. On my main Ubuntu Desktop, I have tried the following wireless devices: a Longshine PCI card ( an old device with an RTL8180L chip ) a D-Link DWL-510 PCI card ( this device threw warnings in dmesg ) a USB device from MSI ( US54EX ). Usually my wireless network shows up in the network manager with a normal signal strength, even when the connection speed is slow or the connection gets reset ( asking me to click connect to re-authenticate my wireless connection ). I know that this router is susceptible to denial of service attacks, as I have previously been able to disrupt its operation by putting an nmap scan into a while loop. Is it possible that someone is jamming my signal ?

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• nginx proxy pass redirect through load balancer

  - by Brian

  I have several backend webservers that are load-balanced using LVS. These machines have only internal non-routable IPs on them. The load-balancer is the only machine with an external IP. This setup works great. I would like to add another webserver for image serving, but it will not be part of the load-balanced pool. Is it possible to proxy pass from the load-balanced web servers to the image server and have the response redirected to the client? Client--external LB--internal web server--internal image server I've gotten proxy pass working when I remove the LB from the equation, but no luck when trying to use it.

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• How to prevent Windows Home server waking for backup

  - by Andronicus

  Since changing the motherboard in my Windows home server it has been switching itself on every night to perform a scheduled backup. I don't want this to happen though, I want to switch the server on using Wake on lan, but I want to manually perform backups if/when required. I know I can disable backups of each computer, and the machine wont turn on, but I want to allow manually triggered backups, or automatic backups if the homeserver is on, but if its in sleep mode, I wish it to stay in that state unless I wake it. How can this be achieved?

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• "Turn Windows Features on or off" when installing .NET 3.5 SP1?

  - by user1413

  I am trying to install a program on my Win7 machine and it says that I need to have .NET 2.0 or later installed. Since Win7 comes with .NET pre-installed, I called support and they told me to just re-install .NET since my .NET install is probably corrupted. The program I am trying to install is SNGWiz (http://www.sngwiz.com/). I do not think its installer is borked. However, when I install .NET 3.5 SP1 using the download from the Microsoft .NET web site, I get the following error: "You must use 'Turn Windows features on or off' in the Control Panel to install or configure Microsoft .NET Framework 3.5 SP1." I have gone to the Windows Features on/off panel and have turned 3.5 both on and off and have tried to re-install .NET 3.5 SP1 under both situations. But it has failed with the same error. What to do?

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• How can I use a script to control a VirtualBox guest?

  - by TheWickerman666

  Refer to : Launch an application in Windows from the Ubuntu desktop I was wondering if Takkat could elaborate on the actual execution i.e. howto in the script file. This will be greatly helpful. Thanks in advance my script file InternetExplorerVM.sh looks like this, execution is /path/to/InternetExplorerVM.sh "C:\Program Files\Internet Explorer\iexplore.exe" #!/bin/bash # start Internet Explorer inside of a Windows7 Ultimate VM echo "Starting 'Internet Explorer' browser inside Windows7 virtual machine" echo "" sleep 1 echo "Please be patient" VBoxManage startvm b307622e-6b5e-4e47-a427-84760cf2312b sleep 15 echo "" echo "Now starting 'Internet Explorer'" ##VBoxManage --nologo guestcontrol b307622e-6b5e-4e47-a427-84760cf2312b execute --image "$1" --username RailroadGuest --password bnsf1234 VBoxManage --nologo guestcontrol b307622e-6b5e-4e47-a427-84760cf2312b execute --image "C:\\Program/ Files\\Internet/ Explorer\\iexplore.exe" --username RailroadGuest --password bnsf1234 --wait-exit --wait-stdout echo "" echo "Saving the VM's state now" VBoxManage controlvm b307622e-6b5e-4e47-a427-84760cf2312b savestate sleep 2 #Check VM state echo "" echo "Check the VM state" VBoxManage showvminfo b307622e-6b5e-4e47-a427-84760cf2312b | grep State exit My apologies for any mistakes, this is my first time posting on askubuntu.Thanks a ton in advance. This has been very helpful. Need this for BNSF guests, their Mainframe emulator works exclusively on Java enabled Internet Explorer.

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• Old laptop turns off due to overheating

  - by Jake Thomas

  I have an old Laptop that powers off when the processor's temperature exceeds 84degs Celsius. The more annoying part is flash causes this the most of the times. If I watch a web feed for more than 15-20mins, it results into hard shutdown of the machine. I have an idea of a could-be solution to this problem, I want a program that would decrease the processor's clock speed to about 1.2GHz or whatever, leading it a lower temperature. Is there a program out there that does this? P.S. Someone please edit this and add the relevant tags, as I'm new and i have no idea of what tags to choose from.

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• Are you ready to take a walk in the clouds?

  - by Steve Loethen

  Cloud computing is here, whether we want it or not.  When I say "a walk in the clouds” I am not talking about a pleasant romantic comedy, but a real alternative to hosting applications on-premise.  For years we have had the power to host our web sites on remote systems.  Sure, challenges existed.  Mostly web sites.  I could, with a few clicks, create a account at a myriad of web host sites, put my site in the hands of a remote hosting company, and boom, I was a site on the internet.  But choices, power, and management was limited. Now, we have a set of services to let us approach and power and control we love, but with scalability of the data center.  My personal web site is hosted on a laptop running hyperV in my basement.  I have to manage the machine, patch it, make sure it is powered up.  This is fine for the “hello, this is my dog skippy site” that I maintain. If the football pool I run has an issue, one of the 10 users I have calls or emails me and I go check it out.  All is well. But this falls well below the needs of even the simplest of enterprises.  A business needs a stronger datacenter, a better pipe to the world.  Do I really want to base my business on a dynamic dns and a dsl line from the local phone company? Cloud computing gives us most of what I value (control, a db of my own, updating my site from Visual Studio). Come learn how this technology can transform your business.  If you are a Microsoft shop, or are interested in Microsoft in the cloud, on April 8 and 9, a 2 day free Azure training class is being conducted in Kansas City.  http://www.azurebootcamp.com/city/kansascity Hope to see you there.  If you come, make sure you look me up.

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• Home Media Streaming Server

  - by sharjeel

  I'm looking for a Home Media Server which can stream videos to various devices including iPhone, iPad, Windows Machines, Android etc. I wouldn't want to install any client on any device; a web interface will be preferred. Also, it should be able to read videos of as many formats as possible and should stream by transcoding the resolution and format according to device's specifications. I have a fairly powerful machine on which I'm free to install Windows 7 or Linux. The streaming will be done over a g/n WiFi router or Ethernet locally. What is the suggested solution in my case?

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• Fedora Core 11 won't boot without a monitor

  - by feihtthief

  I have a P4 system that I installed Fedora 11 on. It will not boot without a monitor attached. The monitor can be off (not even have power plugged in), but must be attached. Without a monitor the hard disk thrashes around a bit like it's starting up services, but does not get to the point where I can ssh into the box. I have set the default runlevel to 3 and removed the rhgb entry from grub. Any suggestions welcome. Edit: I have already set the run-level to 3. The machine boots up fine with the monitor plugged in to the point where I can SSH into it. as soon as i unplug the monitor and reboot, it will not boot to that point.

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