I try to setup a HPC cluster with CentOS 5.5. But now there is no Internet connection available in the room where the hardware is located so I set up ntpd server using synchronization with local clock (maybe I do something wrong). Here is my ntp.conf file on a master node (the master node has IP 10.0.1.1, a file server has IP 10.0.1.2 and compute nodes are 10.0.1.3..10.0.1.11, comments are omitted):
I try to setup a HPC cluster with CentOS 5.5. But now there is no Internet connection available in the room where the hardware is located so I set up ntpd server using synchronization with local clock (maybe I do something wrong). Here is my ntp.conf file on a master node (the master node has IP 10.0.1.1, a file server has IP 10.0.1.2 and compute nodes are 10.0.1.3..10.0.1.11, comments are omitted):
Any time I try to install software building it from source when I run make I get a waring "Clock skew detected. Your build may be incomplete". Some software build successfully and run normally after install but some build tasks are failed for example when I try to build RPM's via 'make rpms' for BLCR I get an error message about invalid date in changelog. But the system date seems to be right. I suppose I have invalid settings of NTP.
I had cloned a centos 5.6 installation from virtualbox virtual machine to physical box. Everything work fine. However, the time showing in os using date command differs from bios time by roughly 4 hours. I am running ntp services which sync the time with another centos server on the network. It appears that some services are using virtual clock and some use physical clock. How do I get rid of virtual clock and only use physical clock?
I'm a very new Fedora user, and I've stumbled upon an issue which I can't seem to resolve. Having had a good look through similar issues, I'm still stuck.I have a Fujitsu Siemens Amilo M3438G laptop, upon which I've recently installed Fedora 14. It seems to work great apart from one thing; CPU speed. The processor in the laptop should run at 2GHz. At the moment, it's running at 600MHz, and I simply can't get it any higher.
I've played around with power profiles a bit, not really knowing what I'm doing, but the issue seems to be that the CPU is somehow reporting to the Operating System that it's top speed is 600MHz.The BIOS on this laptop is very limited, and doesn't give me any clocking options whatsoever, so I can't manually set things like multipliers, etc.So, I guess my first question would be - how does the OS find out what the processor speed is, and is there any way of manipulating the top speed? Surely there must be a way for Speedstep compatible processors to exceed their initial clocks?
every time I try to connect to the ftp server I setup i am recieving this error Response:*** buffer overflow detected ***: /usr/sbin/vsftpd terminated Error:Could not connect to server
I wanted to synchronize both clock from windowsxp and centos. whenever i switch to centos i have to change clock before use is there any method so that i can synch both windows clock and centos clock?
I am seeing a 0.3% clock slowdown in kernel 2.6.18-238.9.1.It is giving ntpd conniptions.The problem does not occur in the previous 2.6.18-238.5.1 kernel.
# 2.6.18-238.9.1 [root@blue ~]# uname -a Linux blue 2.6.18-238.9.1.el5 #1 SMP Tue Apr 12 18:10:13 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux[code]....
I am running a LAMP system with CentOS 5.4.The clock just automatically shifted backwards by 19 hours and 30 minutes crippling some of my reports and probably damaging something else along the way.The router supplying IP to this server is a DD-WRT and shows proper time.By the way what does that mean? time drifted by that 33.667 ms?
I am trying to install vmware server on CentOS: In vmware installation guide it says before intalling:
Before you begin, read the following notes and make adjustments to your host system: The realtime clock function must be compiled in your Linux kernel. The parallel port PCstyle hardware option (CONFIG_PARPORT_PC) must be built and loaded as a kernel module (that is, it must be set to m when the kernel is compiled).
I'm having a problem with the time on one of my servers jumping forward into the future. We run serveral CentOS 5.4 servers running Xen, some up to date and some a little older. The one in question is running 2.6.18-164.el5xen, with xen-libs-3.0.3-94.el5_4.2 and xen-3.0.3-94.el5_4.2. On this server are several Xen virtual machines, also running CentOS 5.4 with kernel 2.6.18-164.el5xen. One in particular has problems with the clock keeping proper time.
We use NTP (ntpd) to sync time to a central server in the company. Our NTP set-up works fine, and we have problems on only a couple of servers out of many. The problem I see is that one one particular Xen virtual machine, the clock will suddenly jump forward into the future, usually by several minutes but once by more than an hour. This has obvious implications for software running on the machine. Software such as Oracle grid control agent will restart itself under the (incorrect) assumption that it has been hung for several minutes with no activity. Oracle database will cope gracefully, but applications that refer to the clock will be confused.
We detect these time jumps because we have Nagios checking the clock on each host against the centralised time server (Nagios's check_ntp plugin). Nagios will suddenly report a clock offset that is miles into the future. Following the time jump, ntpd on the host in question will re-sync the time. Ntpd keeps the time steady, ticking just a few milliseconds per second until real time catches up with the server. i.e. Nagios will report the time as being 10 minutes ahead, then a minute later the host will be 9 minutes ahead, and then a further minute later the host will be 8 minutes ahead of real time. The clock on the host stays running very slow until it eventually is correct.
I'm using a very simple conky script to diplay the date and time on my desktop. I've noticed that he conky clock is a few seconds early compared to the time displayed in the right hand side of the top panel (Natty). I guess both displays are based on the same "internal" time, so I'm left wondering how this could happen, and how to sync back the clocks.
It seems that Conky is in sync with the system date, while the panel clock is 2 seconds late (on my system). Checked with while true; do date; sleep 0.1; done
Got HP proliant dl360 g6 running RHEL 5 (x86_64). 10 days ago full update was done, inc kernel was upgraded. Everything has worked normally until today I got in log:
Jun 14 09:28:02 hp_proliant kernel: CPU3: Temperature above threshold, cpu clock throttled Jun 14 09:30:41 hp_proliant kernel: Machine check events logged Jun 14 10:01:01 hp_proliant mcelog: Processor 371118208 heated above trip temperature. Throttling enabled. Jun 14 10:01:01 hp_proliant mcelog: Please check your system cooling. Performance will be impacted Jun 14 10:01:01 hp_proliant mcelog: Processor 371118208 heated above trip temperature. Throttling enabled. Jun 14 10:01:01 hp_proliant mcelog: Please check your system cooling. Performance will be impacted
Server room as AC, temperature is normal all the time. hpasmcli -s "show temp" shows everything (AMBIENT, CPU#-s , CPU ZONE ) is normal, belowe threshold. Current kernel: 2.6.18-194.3.1.el5 #1 SMP Sun May 2 04:17:42 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
i had installed open suse linux enterprise server 10.2 SP2 (x86_64) i successfully installed the operating system with adding more packages, but after going inside i cannot configure ethernet, though i have 2 ethernet ports, no ports has been found, i installed some drivers but i cannot found the ethernet , while giving command ifconfig i get this ,
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1
[code]....
how i need to detect the ethernet card i updated more packages and configured network card but not connected...
I have an issue with Hard Drives in GNU/Linux CentOS 5.3I installed linux 5.3 frash copy to new SATA MAXTOR 1000GB Hdd.And see the partitions is SATA MAXTOR 1000GB (NEW INSTALLATION CentOS 5.3)
/dev/sda1 Boot /dev/sda3 / (/dev/sda2 is the SWAP)
The OS installed smoothly, however when I got to the desktop and wanted to go on firefox, I didn't realize I had no connection to the internet. Then I found out from the web and through the network configurations that said my NIC's driver is not installed. After many hours of researching, I could see people had similar problems with me and I tried to take those solutions and see if it'll work for me. Unfortunately it did not.
Here is my ethernet controller:
/sbin/lspci -v 02:00.0 Ethernet controller: Atheros Communications Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller (rev b0) Subsystem: ASUSTeK Computer Inc. P5KPL-CM Motherboard Flags: bus master, fast devsel, latency 0, IRQ 11
I am new to Linux and after a lot of research I settled on CentOS to be my OS for Linux. But I am having trouble with sound right now as I can not play audio. The command system-config-soundcard opened a gui for audio configuration saying following device is detected - Intel Corp. 82801(ICH9 Family) HD Audio Controller.
Ouput for some commands are given below:: [root@localhost ~]# lspci 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) .....
Clicking on the volume icon gives me message that either Gstreamer plugins are not installed or sound card is not configured.
While Trying to install gstreamer using YUM, I got following message: [root@localhost ~]# yum install gstreamer Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile ..... Setting up Install Process Package gstreamer-0.10.20-3.el5.x86_64 already installed and latest version Package gstreamer-0.10.20-3.el5.i386 already installed and latest version Nothing to do [root@localhost ~]#
So I guess gstreamer are installed but how to configure the sound card or is there any other problem.
Aspire One D250 wlan/ethernet not working on centos 5.4i have tried alot, searchingon net to findout the both lan card drivers for my new aspire one d250 but coudn't find out. Please help me in finding and installing the drivers. infact i have seen alot people searching for the same but no one has successfully installed any of the lan.
Just installed CentOS 5.1 and it's not detecting my NIC. ifconfig produces nothing for eth0. This is a xen kernel.
I can't tell exactly what NIC this motherboard uses, the ASUS website doesn't seem to think we need to know anything more than that it's a PCIe Gigabit lan:
[URL]
lspci indicates it's an Atheros AR8121/AR8113/AR8114.
I haven't manually configured XWindows in a very long time, so I'm not very certain what I need to do anymore. Hopefully someone can provide some guidance. I just built up a new system that I'm trying to connect to a 47" LCD TV that provides a VGA connection. When the computer starts booting all of the text comes up just fine (1 or 2 characters on the left are chopped, but otherwise fine). When I tried to run the installer for CentOS5.5 I ran into a problem. The monitor(TV) wasn't getting a proper signal to display XWindows. In an effort to keep going, I reconnected the PC to an old monitor and did the install from there. That worked no problem. I ran all the latest updates hoping that maybe this was fixed in a patch. I then shutdown and reconnected to my TV. no luck. When it starts XWindows the screen doesn't display anything. I've tried fooling around with modifying the xorg.conf and adding an explicit "Monitor" section and set it to 640x480 with a VertRefresh of 60 (which is supposedly an acceptable format), but no luck. Can anyone provide any guidance on how to solve this problem. BTW I do know that the VGA connector on the TV works just fine because I can hook up my laptop (Windows XP) to it.
H/W Monitor: Olevia 747i (when nVidia on my laptop detects it, it is reported as 747-b11) Motherboard: Biostar MCP6PB M2+ Motherboard - Socket AM2+, �ATX, Audio, GeForce 6150 Graphics, SATA, RAID Graphics: Using the integrated GeForce 6150 chipset
I have installed ubuntu and Centos 5 , but when i do sudo update-grub , the new centos 5 is not detected. Some days ago i did the same (i installed ubuntu , and then Centos 5) , but i had to format the hard disk because some problems i had. The thing is that in that first time update-grub worked , but now not , why? Shouldn't be detected this time too? I have to manually add the new entry to the grub no?
However fdisk and mount does not find the drive. I tried echo "---" /sys/class/scsi_host/host3/scan based on one of the previous threads but get "write error: invalid argument".
Just installed updates with the recent kernel update 11.3 for Centos 5.5. I have had guest additions running fine before that. Now when I try to reinstall the guest additions (which is necessary) I get the message Detected Unsupported x86 environment. how to get this going since it was running fine before the kernel update.
If I boot CentOS (5, up to date) without my USB headphones are plugged in, all sound output goes to the sound card. But if I have the headphones plugged in when I boot, all output goes to them, and the sound card does not seem to be recognised at all.
Is there any way I can force the sound card to be recognised, and chosen as the default device, when booting with the headphones plugged in? If I have booted with the headphones plugged in, and then I unplug them, go into System|Preferences|Sound, and press the Test button with sound playback set to autodetect, I get a dialog with the message: audiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink: Could not open audio device for playback.
Then I started System|Administration|Soundcard detection, and it detected both Intel and Radeon sound cards, but its test button did not produce any sound for either. I moved the Intel device to the top of the list in the Settings tab, and then ran "Reload audio drivers" in the System tab. I got an error message saying I needed to reboot, but I didn't. At this point, the test buttons in the Sound test tab, and in System|Preferences|Sound started working OK. Do I have to go through this rigmarole every time I boot with the headphones plugged in?
how to detected sound card or drivers.when i am trying to detect sound card by using command system-config-soundcard it gives output on gui mode (Audio Configuration) but there is nothing show on PCM device. System Configuration which i am using.
#uname -a Linux *** 2.6.18-8.el5 #1 SMP Thu Mar 15 19:46:53 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux #lspci 00:00.0 RAM memory: nVidia Corporation MCP61 Memory Controller (rev a1)
I have installed trixbox 2.8.0.3 in Intel MAC mini PC, installation completed successfully. After reboot network card was not detected.
My MAC mini PC comes with nVidia Corporation MCP79 Ethernet card. how to enable Ethernet card with out affecting the tribox. trixbox-2.8.0.3 version comes with Cent OS 5.4. [Moderator edit: s/deducted/detected/]
i have centos Linux server running with kernel version 2.6.18-164.el5 and release is CentOS release 5.4 (Final). The problem is when i connect external harddrive which is seaget free agent to this box, it doesnot detect . fdisk -l doesnot show any such partition.
