Ubuntu Servers :: Headless Server Won't Detect Monitor?
Aug 29, 2010
I've got a headless server (32 bit 9.04/9.10, can't remember) that started refusing SSH and HTTP connections a few days ago, and I'm just getting around to hopefully fixing it. The problem is that I can't even connect to the darn thing. I've plugged in a mouse, keyboard, and monitor, but the monitor tells me that it has no signal. I know the monitor works with the computer, as I used the same one to set up the server.
Just for kicks, I even tried to put in a live CD, but that didn't help. Any ideas on how I can connect to this thing?
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Jun 13, 2010
Well xubuntu wont boot without a monitor. I booted freenas without the monitor and plugged it back in and got a signal. So it isnt the bios.
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Jul 25, 2010
I am running a server that is mostly headless, but does run the Gnome environment (I have ubuntu-desktop installed). I usually administer it via VNC over SSH. My problem is that when I reboot the system over SSH, the system fails to fully load the GUI, which prevents me from connecting via VNC (although SSH still works).
When I connected a monitor and rebooted, the system booted up fine. It appears that the GUI will not load without an attached monitor, which never happened before in previous Ubuntu versions. I do use many commands but prefer a GUI for certain tasks and visualization of my work since my system has the resources to spare. Running Lucid Lynx
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May 4, 2011
I have been having some trouble configuring a means to remotely administer an Ubuntu Sever 10.04 machine i recently built and am hoping for some guidance. I'm sorta new to linux so please forgive my ignorance of conf files and the command line . I am looking to have this server serve as...VPN Server, Minecraft Server, KVM Server, Torrent and Dyn-DNS box.I have managed to install all the KVM settings including bridged networking running (Personal victory there) and sorta have Minecraft running (only need to figure out how to make it launch on boot). Torrents already taken care of since Transmission came along with the ubuntu desktop install .The big thing that is slowing me down is remote management. I installed ubuntu desktop (thankfully its Gnome 2), i know that most people don't like it but its what i'm most familiar with. I tried running VNC but always needed to login on the physical machine before I could use that which defeats the purpose. I am now using xrdp which frankly the performance is terrible compared to what i was getting with the built in VNC server and still needed the monitor on and active to connec
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Feb 9, 2011
I have a very specific requirement outside the typical use case of "enterprise server". If possible, I need to run a FUSE filesystem on a headless server, and share it via Samba.Physical security is a non-issue.I see two challenges with this, that Google and I have been unable to figure out: I'm assuming that in order to mount a FUSE system, a user must be logged in. (Hence the "U" in "FUSE".) So the first challenge is how to get Ubuntu to automatically login, on the physical console, to a user terminal session. (I know this can be trivially done in GNOME, but this won't have X-Windows or GNOME installed.) This has to happen automagically after boot-up; manually logging in locally or via SSH isn't an optin.Second challenge (?), how to share a FUSE file system via Samba?
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Jul 18, 2010
I upgraded my Ubuntu 8.04 LTS server to 10.04 LTS - rebooted and things ran good. I knew I had a few problems, but DHCP and DNS were booting up and working fine for me.I went to take a look at Webmin, but apparently that's been removed from support for Ubuntu 10.04 - so I thought, I'll use eBox. I realized that Ebox didn't have the network module turned on, so I tried to turn it on. I found out the installation was missing scriptaculous, so I got that and installed that and then turned on the network module.I then rebooted the machine - and now nothing. It hangs when I get to the load for Apache. I would like to disable the network module for eBox, but can't find documentation for how to do that from the command line - which I have to use because the damn box won't boot and I'm running from a Live CD.
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Mar 13, 2011
Any command line tool to create a m3u file from directories?
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Jul 29, 2011
This is a silly question maybe, but how can I turn my passport drive off after has being unmounted? I am assuming that's the right order, before removing: umount and then turning off. By the way, I am talking about Ubuntu Server, not regular Ubuntu desktop via GUI.
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Mar 9, 2010
I spent most of the day yesterday trying to make this work and haven't gotten really anywhere with it. Building from source quietly failed although it built without error and I got checkinstall to pack it up it didn't actually work.So I rolled back to the repository version of rtorrent.As I understand it, the things I need to do are (I am thwarted at every step):create user with --disabled-password optioncreating the user is no problem except they seem to have no shell, and running any command while su'd as that user throws an error like Code: Cannot open your terminal '/dev/pts/1' - please check.
I found somewhere that changing the permissions on /dev/pts/N solves this problem however N can change after a reboot, or probably following other events so that's likely not the right fix.create init script to run rtorrent as user in previous stepI found an example that seems like it works but I wont know for sure until I get the prior step worked out fully.
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Sep 17, 2010
Background: I need some help regarding install X server/apps on a headless(ie. no monitor, no graphic device) server. The server is in fact a virtual one by Amazon EC2. So there's no monitor nor any graphics hardware. Fedora server (6, i believe) is pre-packaged. The problem is that I want to be running a server app with a GUI. The app won't start without the GUI (and I probably need to tweak a few things through its GUI too).
I plan on setting up very very bare minimal X on the server and then uses NX for remote access. Can somebody shed some light here?
Simply put, my questions are:
1) What would be the minimal list of package i need to install?
2) Where can I find docs about installing and setting up NX? I could only find very fragmented/outdated docs about it.
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Oct 1, 2010
I'm setting up a headless unit with Xubuntu (lucid), VirtualBox and Vino. It works fine except that when I unplug the monitor and reboot I can't connect via VNC. I can ssh in just fine. If I try to plug in a monitor to see the display I get no signal. My assumption is that Ubuntu detected no monitor and decided to ask me something or act differently.
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Jul 13, 2010
how to install vnc on a headless/monitor-less Ubuntu 10.04 ?i googled A LOT i couldn't find a well explained guide. i am not sure if this is the right place to post the thread. if it is not move the thread.
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Apr 3, 2010
I installed Karmic on an older PC I had laying around, and the only trouble I am having is with screen resolution. It uses an old ATI chipset (onboard) for video, and it doesn't seem to do EDID correctly, so I can't display anything higher than 800x600. I have tried creating an xorg.conf, but it's still not working. How can I tell Xorg to ignore the fact it can't detect a widescreen monitor and display something larger than 800x600? I noticed the log says the sync's are out of range, but I am not sure how to fix it.
Here is my current xorg.conf.
Code:
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
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Apr 20, 2010
I am now using Ubuntu 9.10. The prob is I am not able to increase the resolution of display. It is showing only 800 x 600 display. While trying to increase the resolution it is showing "Unknown Monitor". So, how can I detect the monitor so I can increase the resolution of my system.
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Nov 9, 2010
I own a ubuntu-server (2.6.35-22-server x64) - a home router / NAS / etc assembled at the mini-itx motherboard with no attached keyboard / display.The problem is that the system does not detect the occurrence of SD-card in a USB-card reader. Card reader is normally detected and visible in the system.When I insert SD-card in cardreader, in "dmesg" and, accordingly, "udevadm monitor" does not display any events.If reboot with connected SD, everything works fine, but, of course, there is no event when removing SD.On the forum topics if problems arise, it is only with automounting. But it's not. I do not have events from kernel, that he discovered the SD-card.In the desktop version there is no problem.I installed the generic kernel; comparing kernels configurations for desktop/server versions, comparing the output "udevadm monitor" at the time when I inserted the SD-card on desktop/server, etc. - useless.I don't have more ideas. I don't understand something. Probably there is no package.Almost ready to give up, put the desktop version and delete unnecessary.On desktop versions missing events displayed as follows (the output "udevadm monitor" when inserting SD-card):
Code:
KERNEL[985153522.094479] change /devices/pci0000:00/0000:00:1d.7/usb1/1-5/1-5:1.0/host4/target4:0:0/4:0:0:3/block/sdf (block)
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Nov 24, 2010
I'm starting several VMs on a remote headless ubuntu server via ssh using:
Code:
VBoxHeadless -s <vmname>
The VM starts up okay, and I'm left with an occupied command terminal on my local ubuntu machine. So, if I want to start up several VMs on the remote server, I have to open up several command terminals and end up with as many occupied terminals once they're all running. When the local terminal is closed, the remote VM is also shutdown.
Is there a better way to do this without the remote VM being dependent on the local terminal? I'd like to remotely startup the VMs and be able to close the local terminals without shutting down the VMs. I'm sure this must be possible, I just don't know how to do it.
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Jul 16, 2010
I have a cron job to start spideroak when the server boots code...
Command line arguments not allowed during New User Setup
Interestingly enough.... the line saying "Command line arguments not allowed during new user setup" isn't from my script. Any chance that has something to do with it?
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Apr 29, 2011
I'm new to ubuntu and I wanted to setup a headless server (Asus Hummingbird, 2GB RAM, Ubuntu Server 11.04). The installation was successful but: After I tried starting my server without any connected monitor, the server did not start -> I run into a kernel panic (if I connect the monitor after a while I can see the messages on the screen, Keyboard lights flash...). What do I have to do to get the machine running without any monitor? My second problem is, that the Network is always powered down on system power down -> no WOL is possible. Is there an easy way of enabling the WOL function? I tried several things from different tutorials but nothing worked...
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Apr 9, 2010
i have a web server, nas server sitting in the corner of my room and just upgraded to lucid via ssh and it is quite strange that ubuntu server wont start unless a monitor is plugged in and i really don't want a monitor sitting in the corner
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Oct 11, 2010
upgraded to ubuntu 10.10. now my monitor is not detected by the OS. tried pressing the detect monitors button but it does nothing and cannot change resolution(1024x768(4:3) or the refresh rate(currently at 0)?in 10.04, the monitor was called "dell 15"".
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Apr 28, 2011
Say,you have 200 linux servers and you want to monitor things like, disk activity, disk usage, CPU usage, various logs of the servers. What tool is best recommended for this system administration purpose ?
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Jan 22, 2011
I have now had an Ubuntu desktop server on a very crappy server (network filesystem with enourmus latency) for a year and as the subscription will soon run out I opted for a slightly better one, still crappy but at least a "complete server" (cpu+mem+HD).And a headless installation of Ubuntu Server 10.10 "Maverick Meerkat" instead of my Desktop version.I'm not using it for web pages or other 'ordinary' things though, I'm running my homemade MMORPG off of it and this new headless situation is a bit unclear to me.
I created an account and password with my root account, a folder with the username was created in /home/ and I uploaded my mmorpg executable there with an ftp client.I tried to change the whole folder (being root) to 777 but it didn't work either.
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Aug 18, 2011
I have an HP MSS 487 (headless). I was going to update to WHS2011 but was thinking of trying Ubuntu Server first. My MSS has a USB slot, but I'm not sure how to start and run Ubuntu Server from that USB stick. I can use remote desktop to access the box. I'll also need to install something on my other pcs/macs so that I can get the backups working. I didn't see anything that is similar to the whs connector software (client). Would I need to install a full Ubuntu client to do the backups?
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Apr 13, 2010
I just installed ubuntu 9.10 server edition (twice, just to be sure) and the installation ran fine, but when I try to boot into the system, i get past the BIOS loading screen then my monitor just goes into power saving mode and I can't get it to see a signal from the PC. I know the OS is running, because I can ssh into it from my laptop, and I know the monitor works, because that machine had a windows OS on it before and that worked fine with the same monitor. I had thought it might be a graphics card thing with ubuntu trying to push out at a resolution not supported by the monitor, but I find that unlikely as it's brand new this month. If anyone has any idea of something I can try to diagnose the problem, that would be great. As I said, I still have ssh access to the PC, so I can basically try anything on it that I could if I was physically at the box itself.
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May 16, 2010
I 10.04 32bit server edition on a box I had lying around, set it up for samba+upnp, and everything was going great.
When rebooting, the server now turns the monitor off, and I'm not sure if anything's loading. I see the initial dell splash screen, and hear the hard drive start to run, and then the monitor goes into standby.
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Nov 18, 2010
I've been attempting to figure this out for about 4 days straight, so far it has not been fruitful. I've installed Ubuntu 10.04 server onto my former gaming system, Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz, 2 cores with 2 GB ram. Overkill I'm sure, especially for a simple personal voip, htpc, storage server.
The problem is only noticeable when I have the vent server running, on the 10.04 server, and I attempt to connect to it through the LAN via the client on my windows computerEverything works fine and connects, LAN and from the outside, as long as the server is set to DHCP. However when attempting to switch to a static IP address, the vent client will not detect the vent server at all.Aside from an annoyance at having to stick with DHCP, I am still curious as to why the static settings will not function. Something so simple has turned into something quite difficult.
I can still connect to the Webmin interface and Putty into server with either DHCP or static IP enabled.I've performed the following troubleshooting steps so far:1) Followed the directions at https://help.ubuntu.com/8.04/serverg...iguration.html2) Edited the /etc/network/interfaces file through the CLI with nano and through notepad on the windows computer3) Through Webmin I've assigned the static IP, although for some reason it does not include a gateway field.4) I've rebooted the server5) I've issued the CLI
Code:
sudo /etc/init.d/networking restart
Here is the file /etc/network/interfaces:
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May 2, 2010
I have the latest download of Ubuntu Server 10.04 installed. I have not installed a gui for it. I would like to be able to do this from command line if possible. I will be running this server headless but I would like to be able to login remotely if necessary. My hunch is I will need a gui to be able to log in remotely?
I have three Internal drives in my server. 80GB, ext4 formatted, this has the server os loaded on it. The other two drives are 160 and 500GB formatted ext4 as well but they are empty. I have two Ext USB drives with all my stuff I don't want to lose. Both are formatted NTFS. So I need help but keep in mind I am going to run the server headless, but would like to login remotely if necessary without a gui.
My other home computers will dual boot windows or linux, so I need to know what is the safest and best way to format the two drives in my server. ex4 or ntfs? Will I be able to run server without a gui as headless? I just installed Samba4 and starting down the learning curve by googling how to set it up.
My file sharing is simple. Nothing special within the Lan, but want to keep hackers out from the outside world. I use Logmein on my windows computers and may want to setup a remote login for the server at some point. Right now my big this is setting up the drives, shares, and going headless. I would like to be able to just turn the thing on and not worry about it.
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May 12, 2010
I've been trying to get CUPS working on a headless server, in order to share the printers connected to it with the rest of the network. The problem is that I can't add printers via the web interface, or rather, that I can log in, as it will not authorize my account. I've tried lppasswd, adding cupsys to the group 'shadow'(only to have the system tell me that there is no user called cupsys), and been editing the cupd.conf for hours. On top of all tha, I can't even get to the web-interface without running "/etc/init.d/cups restart"!
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Jul 22, 2010
i have been scratching my head and repeatedly banging it against a wall
i have a lan:
m0n0wall router
ubuntu server (headless/no mouse/kbd/speakers, etc in attic)
4 desktop pc's
1 dlink dsm 520
my server is exactly that it has mysql/apache/mediatomb/php/cacti/phpmyadmin/samba/nfs/mpd) ignore all other service running on server & focus on MPD. all 4 desktop pc can connect to mpd and they can see the library. BUT they cannot play any track as it states there was an error with the audio device!i have tried all the examples on the web and none work what do i do? how do i configure it to use the LOCAL soundcard NOT the one that is not present in my server? all the examples are set to use the LOCAL(one on machine running MPD) sound card which does not work until i connect a speaker to my server which again is located in my attic and only has a pc speaker so this is NOT what i want. all 4 desktops do not have mpd installed as they do not need it. all media is stored on my server the gui's that connect to mpd do not have any configuration for a sound card
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Dec 24, 2010
I've installed SliTaz Linux onto a headless server with the following partition scheme:
/dev/hdb1 ext3 main system
/dev/hdb2 ext3 currently empty
/dev/hdb3 swap
I would like to further configure this machine so that (1) a VirtualBox virtual machine is automatically started during boot with no user intervention, and (2) /dev/hdb1 /dev/hdb2 are encrypted with LUKS or the like.
Because /dev/hdb1 and /dev/hdb2 will be encrypted, I will need to decrypt them with my passphrase during boot. But since this will be a headless server, I need to SSH in before the main OS loads, i.e. I probably need to SSH into initramfs? So far, I've found (1) VBoxTool which starts a virtual machine during boot, and (2) and early-ssh which installs dropbear SSH server into initramfs. However, since all my partitions (/dev/hdb1, /dev/hdb2) will be encrypted, I need to decrypt them before the boot process can continue after initramfs. This seems to imply that I need to modify the initramfs process so that I can (1) login via early-ssh mentioned above, (2) enter my decryption passphrase, then (3) let the normal boot process continue.Therefore, my question is: how do I find and edit my initramfs so that I can add the needed decryption tools (what are they?) and be prompted to enter my passphrase via SSH during boot?
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