Ubuntu Servers :: Diskless Login - Setup A PXE Boot Environment?
Nov 24, 2010
how to to setup a PXE boot environment. The server contains a LUbuntu 10.10-installation the client is Ubuntu 10.10 Server (I didn't mix up those two...) So, everything is going fine; the client gets an ip-adres, and boots over PXE. The login-prompt is shown. Problem: I can't login. It seems my users are deleted (better not copied). Of course the system (client) works fine when I boot the system from it's harddrive. The only thing I can guess, there going something wrong with:
[Code]....
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Feb 11, 2010
My problem is that I can't setup a diskless environment with CentOS 5.4 (server) and CentOS 3.9 (hosts). On the host, I've recompiled the CentOS 3.9 kernel, with these mods:
- added kernel level IP autoconfiguration;
- added NFS file system support;
- added Root file system on NFS;
- added e1000 driver (the host has a gigabit network card);
Then, I have followed the guide at this link: [URL]
But in my dhcpd.conf I'he put other parameters:
ddns-update-style interim;
allow bootp;
allow booting;
subnet 192.168.195.0 netmask 255.255.255.0 {
range192.168.195.70 192.168.195.90;
option routers192.168.195.254;
option subnet-mask255.255.255.0;
option domain-name"lnf.infn.it";
option domain-name-servers192.168.195.254;
option time-offset-18000; # Eastern Standard Time
default-lease-time21600;
max-lease-time43200;
filename"linux-install/pxelinux.0";
next-server192.168.195.254;
}
host dante79 {
option host-name"dante79";
hardware ethernet00:20:38:01:C3:7C;
fixed-address192.168.195.79;
}
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Jun 24, 2010
I have a PXE server which installed DHCP TFTP AND NFS service. and set them up followed by [URL].
The boot process hanged here:
ipconfig: eth0: SIOCGIFUNDEX: No such device
ipconfig: no devices to configure
[-n eho]
. /tmp/net-eth0.conf
/init: line 3: can't open /tmp/net-eth0.conf
...
What I did try to work around is,
1. Set portfast to all the ports connected the PXE server and client.
2. Edit pxelinux.cfg/default, try different setting in "ip=" (I did not find any menu in the internet which explain to to configure this file).
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Dec 9, 2010
I'm trying to set-up a diskless environment on my home network, based on a F12 server and one FC14 client and I have a problem that I think is related to NFS, but googling around I cannot find any solution.
Basicly the client boots correctly, gdm fires up showing the login window, but the system doesn't let me in, if I switch to console (CTRL+ALT+F2) I cannot login with both standard and super user getting a "permission denied" error.
I tryed to mount the exported fs on another computer and ls -l on the mounted dir shows both user and group set to nobody.
If i mount the exported dir on server side (i.e. mount -t nfs localhost:/...) permissions user and group shows correctly
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Dec 7, 2010
I have two computers on my home lan I am trying to share files between...My desktop which is running Ubuntu Server 10.10 (x64) with a GUI, and my laptop which is running Ubuntu Desktop 10.04. I have tried a million different tutorials regarding SAMBA setup, but they never work.
In addition, most of those tutorials are geared towards hybrid Linux/Windows environment. I do not have any microsoft product in my home. I have created the share on my server, but I'm not sure how to connect to it from the laptop (once again at this point in the tutorials it explains how to access it from a Windows PC). I tried using the menu doing this:
Places-->Connect To Server-->Service Type-->Windows Share (for the server I tried my server hostname and IP) to no avail. Does anyone know of a recent step by step tutorial for setting up a complete Ubuntu environment? Is there a simpler method I can use since I do not particularly need to use SMB protocol?
All I want to do is share my music folder from my server so I can access it (from the same LAN) on my laptop...Arrrghhh frustrating.
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Aug 8, 2010
I currently have a debian lenny high performance cluster running seamlessly using dhcp and tftpd-hpa. All nodes are completely diskless, and i would like to keep it that way. I now would like to have a client boot over local into a full KDE desktop.
Here's the cache.
1. I would like the client to also be a node. I would like it to handle processing as the other nodes do, but this one with a full desktop, with ALL data and privileges accessible.
2. The client will have its own workstation graphics. It will need to have that driver loaded without slowing the system.
3. Client will need to be able to use its own usb, bd-rom, dvd, audio, etc. even though it will be booting into the HPC.
4. Wireless. I cannot run 70 ft of lan across an apartment. not happening.
The idea is a media center applicable "powerhouse" with high-end power and graphics for easy media editing, 3d creation, and gaming. Will also be used for webcache over all local, file sharing, and other server applications.
HPC specs:
-headnode: hp compaq p4-ht 3.2 ghz, 4x500gb, 4gb mem, gigabit ethernet, wireless-N
-nodes: 4x p4-ht 2.2 ghz, 2gb mem, no-name brand slim desktops; 2x panasonic toughbooks p4-mobile 1.8 ghz, 1.5gb mem; 3x gateway p3 unknown specs; and 1 hp 530 notebook 1.6ghz core2 duo, 1.5gb mem
-client: hp compaq core2 duo 2.13 ghz, 4gb mem, wireless n, bd-rom, 2x dvd-rom, usb 3.0 card, bluetooth, 1gb AGP nvidia geforce 6800 dual-dvi, no hd.
I need to know how to set up this PXE.
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Feb 12, 2010
I'm trying to setup a PXE boot environment.Now the diskless machine reads in vmlinuz and initrd.lz from the /tftpboot directory of the dhcp server machine (host name: antilop, runing slackware 11.0).There is a NFS export named /usr/data/ubuntu on antilop (which can be mounted from the client when runing mandriva mcnlive Toronto)When I'm trying to boot with PXE, the kernel and initrd starts, eth0 gets a valid ip address.Then a lot of error messages appear saying: NFS over TCP not available from 192.168.1.48 <- this is antilop, my DHCP server and NFS server too.
Here is the content of the /tftpboot directory:
-rw-r--r-- 1 root root 34 2010-02-11 20:49 boot.txt
-rwxr--r-- 1 tjp users 75564 2009-10-05 16:08 gpxelinux.0*
-r--r--r-- 1 root root 5755032 2009-10-28 00:00 initrd.lz
drwxr-xr-x 2 root root 2592 2010-02-12 12:59 pxelinux.cfg/
-r--r--r-- 1 root root 3890400 2009-10-16 00:00 vmlinuz
Here is the contents of my /pxelinux.cfg/default:
default aaaa
label aaaa
kernel vmlinuz
append boot=casper netboot=nfs nfsroot=192.168.1.48:/usr/data/ubuntu initrd=initrd.lz
There is no process listening on tcp port 2049 (on antilop)I asked my friend google but it didn't give a satisfying answer so far.Some said that no nfs-over-tcp exists on slackware, some said nfs clients trying over tcp must fallback to udp.
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May 22, 2009
I am currently working on a Diskless Fedora10 based PXE image that should auto login and then launch the ICA client without launching the desktop (so normal autostart will not cut it)I have got the image up and running, the clients boot correctly, autologin etc, but still launch KDE, and I was hoping replace the desktop with the ICA Client.
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Mar 5, 2010
I am having trouble finding a guide for setting up Apache and Phpmyadmin to use https with the Phpmyadmin login. I can only find snippets of config files in answers here and there, but I can't see the whole picture of how to setup everything from a fresh system. Know a were to find a guide?
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Apr 5, 2010
I just got unbuntu server edition installed on my server along with openssh-server. Now I am trying to set ssh so I can log in with a key authentication. I am using this guide to do it through putty on my windows machine. [URL]. After I installed ssh I logged in correctly. I then proceed to generate a key in putty. Now my problem starts when i try and put that key onto my server.
The tutorial says to type in
mkdir .ssh
My server says it cannot make that directive because it is already created. So I proceed to the next line. I believe this code sets permissions?
chmod 700 ~/.shh
Nothing happens just goes to a new line
Then I did this
cd .ssh
nano -w authorization_key
then I copied and pasted the key I got from putty gen into this file pressed ctrl o and then ctrl x
When I try logging into my server using the key auth it simply asks for my login, once it is input it says authorization invalid then ask for my password.
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Jan 4, 2011
I have followed everything in the fedora 14 documenation about setting up a diskless pxe boot and I can get past initialization. The kernel and initrd load fine from the tftp server. The kernel starts, then hangs after probing USB devices. The messages show that initrd does not have support for nfsroot. I think I need to better understand how to add this in when I run dracut to build the initramfs image.
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Jan 7, 2009
I'm attempting to set up a server for performing diskless boots here. I'm using Gentoo 2008, and have followed the instructions here:
[URL]
I've gotten to the end of the basic DHCP setup, and I can not get the server to issue addresses. I've confirmed dhcpd loads up OK, and is running in top.
Here's the contents of /etc/dhcp/dhcpd:
Code:
# Disable dynamic DNS
ddns-update-style none;
# Assume one default gateway for IP traffic will do
[Code]....
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Aug 23, 2010
I was wondering, how much hassle would it be to setup a PXE boot so I can boot a machine from the network.
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Oct 3, 2010
i installed ubuntu server on a 4-hard disk system, i installed with the RAID 10 support that comes with 10.04 server optioon. my raid swap is /dev/md0 and my raid data partition is /dev/md1
hard drives are /dev/sda /dev/sdb /dev/sdc /dev/sdd
the instalation goes fine, from the 8TB im getting 4TB mirrored which is what i want,
but the instalation setup goes up to the point where it asks me to install grub boot loader, There i choose the default option and it does a fatal error.
my main goal is just to make it bootable, any method is welcome. this went beyond my RAID knowledge (more conceptual than technical)
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Nov 26, 2010
I use ubuntu server as a virtualbox instance, bridged networking enabled. if the server would display the IP with which I can connect to it after boot. In that way I don't have to login as root and run ifconfig.
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Sep 1, 2011
I've used Ubuntu 4 years ago now I'm installing a new version. How do I get the X Window environment setup, instead of Windows environment that I'm seeing ?. I need something like KDE and XTerm.
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May 27, 2011
Before setting up a dedicated web- and mail-server system, I want to learn it by setting both up on my desktop environment. So far I can only find how-to's which are based on server install iso's.
Is it wise first to install a mail server by using i.e. [URL]. Get it up and running and then install a lamp server using [URL]
Both servers must use my own IP address which is related to my own domain xxxxx.com I also need to understand how to incorporated these.
My desktop is Ubuntu 11.04 2.6.38-8-generic x86_64.
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Feb 21, 2010
I have been looking around the web and forums for a while for the best way to set up a development office. I havent really found many specifics. I am with a new company is just starting to really take their development services seriously. We've added a couple developers and designers in the last month. I am trying to figure out a the best way to set up our environment.
We have a couple dedicated virtual servers with Media Temple. Currently, we develop everything under a subdomain of a domain we set up for development. When the site is ready to go live we move the site to its own domain. I cant believe this is the best way to go about things. So, what do you guys suggest as a setup? Software, versioning, etc. We have the ability to setup a test server in house and then push out changes to the production server but not really sure if that is needed.
We do mainly Wordpress development. If this should be posted in another area,
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Mar 11, 2010
I have setup samba and shared /var/www/html on a shared folder so that i can access the folder directly via my IDE, however i cannor write file in there, is there any better way of doing it ?
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Jun 28, 2011
I wrote a little script that will automatically mount two Samba shares to my home directory and I was wondering if a) You guys/gals had any input as to how I could improve on this script and b) Tell me how I would go about having this script automatically execute when I log on via SSH.
Code:
#!/bin/sh
mount -t smbfs -o username=Myuser,password=Thepassword //192.168.1.102/Data1 /home/user/Data1
mount -t smbfs -o username=Myuser,password=Thepassword //192.168.1.102/Data2 /home/user/Data2
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Jun 15, 2010
I can setup variables in ~/.bashrc for my own shells. I can also setup variables globally in /etc/bashrc.but then how do I setup variables for a group in Linux? So that users who belong to this group will see the variables, but not others?
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Mar 23, 2010
i need to setup a demo desktop environment for ppl to try out a java based gui. i need to put this demo on a VPS server, run a vncserver, and use a web-based vnc viewer for ppl to access to it. what is the best desktop environment for this case, 1. my vps server only has about 200m memory left 2. i need to have java swing set running 3.it doesn't have to be cool, but it needs to be quick. i heard that freeNX is quicker, but i doubt there will be a web-based viewer around. i tried both gnome and xfce4 on my virtual machine and vnc to it, strangely i found out gnome is somehow faster than xfce4 which is supposed to be otherwise.
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Feb 13, 2011
I was trying to setup a cross-platform development environment with qt, an thus looked for the qt-sdk package I used to install on my 32-bit machine.This package appears to have been deleted from 64-bit ubuntu maverick, but I do not understand the details...
- Has this package been renamed, or is there another one in place of it?
- Is this package going to be available again in the future?
PS: I am aware that one can install the sdk by downloading the installer, but for unattended install I prefer the apt package...
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Aug 2, 2011
I install ubuntu server 11.04 I select ubuntu server from boot menu then enter username and password and then i see a command line line and a black background How i can setup a graphical app (some thing like genome) for my server I do not know any thing Any body can explain all step of this for me how I connect to internet how download graphical app and install it? (I connect to web with windows 7 and adsl internet)
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Jan 8, 2011
I edited /etc/profile to look like:
# /etc/profile: system-wide .profile file for the Bourne shell (sh(1))
# and Bourne compatible shells (bash(1), ksh(1), ash(1), ...).
if [ "`id -u`" -eq 0 ]; then
[code]....
When i type env, it just shows: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin It also shows JAVA_HOME, CLASSPATH and others were set up. Trying to get updatetool in glassfish usable for any user and during any session. I did the export command in a shell, and it worked, but not after closing the session. how to do environment variables.
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Jul 21, 2010
I planned to setup raid 1 mirroring for my small home environment. Then I selected two new harddisk and connected to my system. I inserted my fedora dvd and I clicked raid button in the graphical installation process by refering redhat docs. I installed successfully in /dev/sda /dev/sdb it works fine. For testing purpose I removed one harddisk /dev/sda. My system didnt boot it shows grub error. Why this happened? Since I have configured raid mirroring why the system is not booting from second harddisk /dev/sdb.
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May 2, 2010
I am attempting to set up a firewall in my home network environment. the rest of the environment is windows, sorry I am attempting now so bear with me. what I have is a cable modem coming in, then my fedora 11 box with 2 nics, then the wireless router and the rest of the network.
everything works fine until I put the linux box in. If I put the firwall in the firewall sees the internet but the wireless router directly after does not. I am doing something wrong with the dhcp I am guessing. I dont want the firewall to give the address to the network I want the router to. I tried to get the firewall to do it (yum install dhcp leafnode) but it kept saying something didn't work right.
so I figure I will let the cable modem give the firewall an ip and the router give the rest of the network their ip's but how do I get the firewall and router to see each other and allow passthrough?
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Jun 4, 2010
OS: Centos 5.5_x86
I've searched quite a bit for how to set up Java environment variables with the newest java JDK. I installed java using the following commands:
yum groupinstall "java development" (I need it for the application I am trying to run)
yum install "java"
I have them both installed however I can't seem to get java to function. The application I am trying to run requires that I set java environment variables any solutions?
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Mar 19, 2011
My ubuntu 10.10 desktop environment freezes at right after login, with the window prompt to "unlock keyring" in the foreground. The cursor still can be moved around the screen with the touchpad or mouse. Mouseover of Docky elicits the usual animation but there is no response to clicking it. There is no other response elicited from moving the mouse over or clicking anything else on the screen, including the taskbar and the hot corners i have set up. However the screen still goes dim and to sleep when left unattended and can be reawoken. The netbook also still recognises when it is plugged into a power source.
Background info: I have been dual booting windows 7 starter and ubuntu 10.10 desktop edition for about 2 months now on my ASUS eeepc1005pe netbook with no issues till now. The problem only started when i booted up into windows 7 starter without having shut down ubuntu completely. My netbook was hibernating when i mistakenly chose to boot into win 7 starter at the bootloader. Now this freeze happens every single time i try to boot into ubuntu. But i am still able to boot into win 7 starter without any problems.
The same sequence of events occurs each time i try to start ubuntu. The boot goes fine, then the automatic login occurs, then compiz loads fine then my desktop environment appears with all the same windows and programs open on the desktop as the last time i had managed to use ubuntu except that the keyring login prompt appears in the foreground and then everything freezes as i have described.
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Apr 6, 2011
I have my work PC in the office, and time to time I access it via TeamViewer from home. I have access to it also via ssh, over the VPN connection. I have problems with this setup, when for some reason the work PC must be rebooted (or it just happened by itself - power failure). The Ubuntu gets to the login screen and that's it. I can not access it remotely because the TeamViewer application is not started on that PC yet. I'd like to know, if there is a way how I can access my work PC over the VPN connection - open SSH session, and write some commands, to log in that desktop environment user, and launch the TeamViewer application. Ie, if someone would be looking on the screen at that moment, she would see that login screen disappears, desktop environment is loaded, and the TeamViewer app is started.
If that's not possible, then, I guess, I'll have resort to some alternative remote access tool (ie, VNC) what could be loaded before the Ubuntu login screen is shown. Then I could access it over the VPN connection, using appropriate client.
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