CentOS 5 Server :: Running A 64bit VM In KVM?
Apr 25, 2011
I have a CentOS 5.5 system that I am able to run fully virtualized 32-bit VM's on just fine, but I have need to run some 64-bit VM's on it. It has a "paravirtualized" option that might possibly work, but it wants a network install path, and I am not sure if this is the actual solution. When I go to create the VM I only have i686 and xen for options on the virtualized method, is there a way to add (I am presuming) amd64 in here somehow? The CPU is definitely 64-bit. My google-fu hasn't found results for me yet.
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Sep 20, 2009
I have searched the whole google but did not find anything. I am trying to install a game server using hldsupdatetool.bin which can be found here, [URL]. Unfortunately it can only run on 32bit Operating Systems. I need it to run on 64bit. What do I need to install? Please be specific since I am really new to linux. Please tell me what I exactly have to type in the command prompt.
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Oct 26, 2010
On a newly installed centos I updated mysql-* & php-* files using RPM repository, and I installed phpmyadmin. After that i tried restarting mysql and it just said: failed
Code:
service mysqld start
MySQL Daemon failed to start.
Starting mysqld: [FAILED]
[Code].....
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Mar 1, 2009
how to work with linux (centos 5.2 64bit) but i am having a hard time to get this screen install. I was going to try this but i was not sure as i have reinstall the os many times because i do something wrong.
apt-get install screen
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Jul 19, 2009
After "yum install emacs" & "yum install emacs-ess", I was able to install emacs on my X86_64 running Fedora 10.
If I run one session of emacs everything works fine.
Once I start a second session and try to resize or move the emacs window, the system stops responding.
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Jul 12, 2011
I am looking at getting a Dell Poweredge 850 Pent4 3.6GHz 64bit with two 160Gig SATA drives and I was wondering if anyone has installed Centos on one of these servers or has anyone had any issues installing Centos on these servers.
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Mar 5, 2010
I did a full install on 5.4 64bit. the installation aborted with the following errors:
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Jul 31, 2009
I have Centos 5.3 on our server When I log-in in webmin I have a message "Warning - Your system is actually running CentOS Linux version 5.3." In the next line I have a button "Update Detected Operating System" My question is Do I need to click the link and update Detected operating system? If I do, is it going to change any configuration on our server?
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Jun 18, 2009
I'm trying to get php-fpm running to use with nginx. I usually just use spawn-fcgi, but I would like to try php-fpm this time. I was hoping that it would be as easy as yum install php-fpm, but alas, that is not so. how to get php-fpm working on CentOS?
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Nov 24, 2009
I have a multiheaded setup with one X server and two displays i.e. :0.0 and :0.1. Is there a way to have one instance of an X client for example xeyes and have this displayed on both displays at the same time. I want one keyboard/mouse that controls both displays. I do not want to use Xinerama.
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May 13, 2010
service xend status returns nothing - simply moves to next line
service xend start does the same thing
xm list
ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
Error: Unable to connect to xend: No such file or directory. Is xend running?
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Sep 7, 2009
service xend status returns nothing - simply moves to next line.service xend start does the same thing
xm list
ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
Error: Unable to connect to xend: No such file or directory. Is xend running?
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Feb 5, 2010
I just did a basic service install of Centos5 and added the RPM package install of VMware-server 2.02. but I don't the VMware service is running (based upon the flowing screen:
[root@centoshost1 vmware-mui-distrib]# ps
PID TTY TIME CMD
2925 pts/0 00:00:00 bash
22378 pts/0 00:00:00 ps
So how do i start the VM service?
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Nov 16, 2010
Using the EPEL Repository, I went in and installed Cobbler to my DHCP/Gateway box.Everything went smoothly on the installation front. I went ahead and modified the cobbler settings file (/etc/cobbler/settings) to point to my server IP (same box), and then got tftp running properly. Now here's the problem.Normally, you need to run `cobbler check` to find issues and correct them. I run that, and all I get is blank. Nothing. It just hangs at the prompt until I kill it using CTRL+C.When I CTRL+C from the hanging, it states "cobblerd does not appear to be running/accessible"...
Code:
[root@PalaceRedirect ~]# service cobblerd status
cobblerd (pid 6991) is running...
[code]....
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Mar 9, 2010
I'm attempting to get freetds and sybase up and running on my centos server, mainly for nagios - MSSQL checks. I've installed freetds freetds-devel ok but am having issues getting SYBASE installed. I've had a go via cpan but get a failure on the sybase environment variable. I've set it to /etc where the conf file is located as well as trying /urr/lib64 for the tds libs, but no joy. Has anyone had much luck with this on centos?
export SYBASE=/etc
[root@nagios ~]# echo $SYBASE
/etc
cpan DBD::Sybase
CPAN: Storable loaded ok (v2.15)
[Code]...
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Sep 30, 2009
installed a new centOS 5 server, and after the installation, everything seem to work well but for httpd not running. when i try to issue the restart command i get the following error:
[root@appdev ~]# service httpd restart
Stopping httpd: [FAILED]
Starting httpd: httpd: Syntax error on line 206 of /etc/httpd/conf/httpd.conf: Cannot load
[code]....
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Aug 4, 2010
I am new to linux. I want to run a server-client (c#) windows/console based application on CentOS 5.4. The code in C# has made using visual 2010. Should I use wine for this purpose or go for mono?
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Jul 30, 2010
My office is on migrating to UNIX system. I am configuring Centos as our server including some program will be running on it. But one of the problem is we use foxpro for operating some program on server directly. I can run that program on Centos using DOSBox. My question is how can i run that program on winxp client that connected to network through samba to that program on server? so my plan is just give the shortcut and link it to server. I have tried to open it but not work.
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Nov 18, 2009
I have been trying for days now to get this to work. didn't want to bother people with my questions, i have installed Fail2Ban 0.8.4 on CentOS 5.4.
I get the email notifications from Fail2Ban stating that it just blocked another IP, however, when i look at the iptables through webmin, nothing is actually in there, also the log/secure file dose not show that the ip has been blocked.
Even when I try to log-in with the wrong password, after a few tries i get the email telling me that my ip is blocked, however, I can still SSH using my 'blocked' IP.
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Jan 31, 2010
recently i setup new LAMP server , after some days faced a strange problem? suddenly the server load goes to 100 or 80 but there is no wearied process running? the normal lod is between 0.5 to 1.5? the server have 2 hdd on hardware raid 0
[Code]...
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Jan 12, 2011
I am setting up a CentOS server that has no screen connected, and only has 2 Tesla cards. I have created a minimal xorg.conf and xinitrc file that doesn't load mouse or keyboard, and only creates two screens, one for each card at 320x200x24 bit. This is so I don't waste VRAM on a framebuffer I can't see.
I modified the xinitrc to just load tdm and nothing else as GNOME is a RAM hog. I am then using this setup to render stuff offscreen using OpenGL into FBOs which I read back to CPU and process. Currently for development I just run startx& when I login. I now want to know how to set x server to start automatically at boot. The CentOS docs say that it will try to load the GNOME login manager. The thing is that I don't want a login manager as it is useless as I login remotely via SSH.So:
1 - how to enable automatic x server in CentOS (im used to Ubuntu so not sure how to do this on Red Hat variants)
2 - leave x server running without starting login manager
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Feb 22, 2011
What would be the best way to determine memory consumed by each application running on the server?
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May 2, 2009
We've been experiencing sudden host server crashes minutes after starting a fourth virtual machine. Our setup looks like:
Dell Poweredge T300
1 x Intel Xeon X3323 Quad Core 2.5 ghz
16 GB Ram
CentOS 5.3 (64 bit)
Server is running a stripped down version of CentOS 5.3 (64-bit), running only the built-in Xen Virtualization Environment. There is no other services running on the server (not samba, httpd, sendmail, cups... nothing except Xen) We've created several virtual machines, and as long as we don't start a fourth virtual machine everything runs smoothly (impresive hardware).
Each virtual server is configured as:
PARAVIRTUALIZED
1 Virtual CPU
1 GB RAM
However, 5 minutes or so after starting a fourth virtual machine, the entire host server crashes and restarts itself. Are we limited by the number of cores on the host machine CPU (4 cores)? 1 for the host and 3 for virtual machines? We've read in forums about other Xen setups running up to 11 virtual machines on less powerful hardware? (a dual core server). Should we be using FULLY VIRTUALIZED virtual machines instead? Is the number of XEN virtual machines in fact limited by the number of cores? If so, how can someone run several virtual machines on a single core host?
By the way, we were replacing a previous Dell Server (Poweredge 2600 with 512 MB Ram and a single Xeon single core processor running Open Virtuozzo). We were able to run up to 16 virtual machines at the same time. Of course none of the machines endured hard work (testing environments, etc). But hey, my point is that we expected to get a much higher number of virtual machines on this new hardware.
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May 5, 2009
My first time installing centos server and adding it to xp home network. I am new to setting up my own network in general. I have a home windows wired ethernet xp network (simple linxs router) with 2 xp boxes and one centos5 box all connected to the same router. I just set up the centos box running tomcat on port 8080. I need to do two very basic things at this point, but am not sure what I need to do:
What do I need to do so I can:
1. Connect in firefox on one of my xp boxes and call the tomcat server running on my centos box?
2. Be able to ftp to centos box from either of my xp boxes?
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Apr 27, 2011
I'm trying to open up some ports to connect via vnc to a server running Centos 5.5. I've edited /etc/sysconfig/iptables everything *looks* fine, but I still can't seem to get access to the port I've opened (I added some newlines for clarity between commands):
[Code]....
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May 6, 2011
Howto show all services running/installed in the command line under Centos 5.6 Server?
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Jun 13, 2010
how to install 32 bit libraries on Fedora 64 bit.
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Jan 19, 2010
Ive just installed ubuntu 9.10 64bit os from 32bit on 32bit i had no problems with it running quite fast.Since 64bit has gone on everything i do is running slower update manager took 2 hours to download 202 updates in 32bit that would have taken less than 2 minutes i net is Virgin media 54 Mbs so i can count that out always super fast on 32bit.There is also a lag when opening files and folders and loading programs even in software centre surely it should be quicker than this . Everything works skype ..... ( vids work but cant pause or adjust vol on player).
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Mar 25, 2010
I'm trying to run a library compiled in a 32bit Linux (CentOS) environment on my Fedora11 64bit image. I ran into a few issues with dependencies such as gcc, xml2, ssl plus a whole stack more that existed in /lib64 and no/lib where the binary was expecting them. After a bit of reading around, I found I needed to install the .i586 version of each of the dependencies. After adding most of them, I was left with libssl, libcrypto and libxml2. When I tried to do the following
Code:
yum install openssl.i586
I got an error stating it could not be copied due to a conflict with the i686 version. I was going to erase the i686 but it was going to remove a ton of other stuff so I created a symbolic link in /lib to point to 64bit version. Eventually, ldd had no missing dependencies so I figured I was good to go. I now get the following errors when I call my library
./SupervisionServer: /usr/lib/liblber-2.4.so.2: no version information available (required by /lib/libphp5.so)
./SupervisionServer: /usr/lib/libldap_r-2.4.so.2: no version information available (required by /lib/libphp5.so)
./SupervisionServer: error while loading shared libraries: /lib/libpalo_ng.so.0: cannot restore segment prot after reloc: Permission denied
PHP is installed and working and the libpalo_ng.so.0 is in the /lib folder
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Mar 19, 2010
Use python as example, I have 64bit python 2.4.3 yet I can't found rpm for 32bit one so I try to build it.Use default make or make --enable-readline is ok, python make cannot use CFLAGS, can use OPT and LDFLAGS to add -m32, yetit seems can only search for 64bit lib, or else crush.[Moderator edit: Moved from CentOS-4 to CentOS-5 forum.]
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