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2012 Oct 30
4
full image backup
Hi every body I am a new centos user. I installed centos 6 on my laptop and add some software to it. How can I create a full image (boot able) back up of it. ( some thing like windows full image backup). please help! -- With The Best H.Lanjanian
2014 Mar 29
1
uefi
How can I install a dual boot centos in my laptop while my windows has UEFI partition? -- With The Best H.Lanjanian ----------------------------------------------------------------------- Hossein Lanjanian, Ph.D. student Laboratory of Systems Biology and Bioinformatics (LBB) Institute of Biochemistry and Biophysics (IBB), University of Tehran Tehran, Iran http://LBB.ut.ac.ir
2012 Sep 01
4
wine
Hi every body I have installed wine on the centos in my dual boot win7 & centos 6 Vaio laptop system. every thing was OK. but after rebooting system, centos start loading but crash in the loading step. I change selinux conf. with using CD Rescue option but it dosenot be helpfull. please help -- With The Best H.Lanjanian -------------- next part -------------- An HTML attachment was
2017 Feb 28
2
NUMA placement failed, performance might be affected
I just did a yum update on a CentOS 7 / Xen 4.6 server which took me from kernel-3.18.34-20.el7.x86_64 -> kernel-3.18.44-20.el7.x86_64 After rebooting, the following notice is printed immediately upon xl create'ing a domain: libxl: notice: libxl_numa.c:499:libxl__get_numa_candidate: NUMA placement failed, performance might be affected Indeed performance is significantly degraded. This
2016 Sep 17
4
Panic: file auth-request.c
Hello Dovecot list, We've been running a really old CentOS 5 server with the stock dovecot from yum (1.0.7) for years and years with absolutely no problems. If it ain't broke, don't fix it, or something like that. Well it finally broke, but only due to the server no longer being able to handle the load of the increasing user base (many thousands now, with hundreds of concurrent
2020 Apr 24
4
VM migration problems
I have migrated KVM VMs from a CentOS 6 to a CentOS 7 host. All work fine post-migration, CentOS 3 (don't ask ...), CentOS 6, CentOS 7, Windows. But the CentOS 5 VMs failed. At some point during the boot process, they became unpingable and also inaccessible. I have correlated this to the start of the irqbalance service and was wondering if it is generally considered best practice to turn it
2013 May 26
4
Xen on CentOS 6.4
I heard talk of a centos-supported xen dom0 for CentOS 6.4, but I haven't heard talk of such a thing lately, and I haven't seen where to download it, which could just be me being stupid.
2020 Sep 19
4
CentOS 8 Install as DOMU in PV Environment
Hi, In general, PV tends not to be supported in newer distribution releases. This is mostly due to HVM performance and flexibility nowadays, which just was not the case back in the days when PV ruled. I am curious why you are trying PV. -yoctozepto On Sat, Sep 19, 2020 at 6:41 PM 9f9dcad3f78905b03201--- via CentOS-virt <centos-virt at centos.org> wrote: > > All, > > Just
2012 Feb 01
2
[xcp] problem in running xcp-networkd in ubuntu 11.10
Hi I install the xcp from the http://wiki.xen.org/wiki/XAPI_on_Ubuntu. But I got this error while configuring xcp-xapi: xcp-networkd (1.3.2-1ubuntu1~oneiric1) wird eingerichtet ... Starting the XCP networking daemon: .............................. * failed to start xcp-networkd. invoke-rc.d: initscript xcp-networkd, action "start" failed. when I comment the
2016 Mar 12
1
SELinux denies haproxy
for more information : https://www.mankier.com/8/haproxy_selinux On Sun, Mar 13, 2016 at 2:05 AM, Alexander Dalloz <ad+lists at uni-x.org> wrote: > Am 12.03.2016 um 23:18 schrieb Tim Dunphy: > >> Hi all, >> >> I'm load balancing 4 mysql databases using HAProxy. The setup seems to be >> working pretty well. Except I keep seeing these messages turning up in
2006 Oct 13
1
Mantel test!
Dear Sir/ Madam, I would like to ask you about mantel test in R. In ade4 package, if I want to use mantel.rtest, I get error massage "Object of class to "dist" expected". As I already have two dissimilarity matrices, shall I again compute distance measure using this function? If not, could you please let me know which function/command I can use to do? Thank you very much in
2017 Feb 28
0
NUMA placement failed, performance might be affected
Solved. For the archives: Noticed in xl info output that only 1 core was recognised, even though nr_cpus should show 16 on this box. Tried rebooting and selecting the old .34 kernel, console printed "smpboot: do_boot_cpu failed(-1) to wakeup CPU#1" and CentOS failed to boot. Powered down the box fully and started back up with the latest .44 kernel and everything is working fine
2015 Oct 09
2
git clone --recursive
Hi, We use a git submodule for gnu-efi. What would be the downside of changing git clone git://repo.or.cz/syslinux.git into git clone --recursive git://repo.or.cz/syslinux.git on the Syslinux wik? Cheers Geert Stappers $ git clone git://repo.or.cz/syslinux.git Cloning into 'syslinux'... remote: Counting objects: 50546, done. remote: Total 50546 (delta 0), reused 0 (delta 0)
2012 Oct 29
2
Save/restore IMAP session state
Some future Dovecot version will have "imap-idle" processes where IDLEing IMAP connections get moved, so the system wouldn't waste so much memory for all the IDLEing imap processes. A week ago I thought I'd see how easy it would be to implement this. I got a basic proof of concept working as a "X-STATE" command. Save the state: a x-state * STATE
2017 Feb 14
2
Execution of pre-bridge handlers
Hello Asterisk Users, Hope you all doing fine! I am working with a quite complex dialplan, and I've come to some situations where it makes some nasty use of pre-bridge handlers. The pre-bridge handlers wiki (https://wiki.asterisk.org/ wiki/display/AST/Pre-Bridge+Handlers) doesn't have the big warning the pre-dial one has indicating it must return and must not put the caller/callee in
2011 Sep 14
2
Slightly OT: Centos KVM Host/Guest functions and LVM considerations
Greetings - I will be getting a new server for my company in the next few months and am trying to get a better understanding of some of the basic theoretical approaches to using Centos KVM on a server. I have found plenty of things to read that discuss how to install KVM on the host and how to install a guest and setup the network bridge, and all the other rudimentary tasks. But all of
2004 Apr 20
1
asterisk/oh323 segfaults
Dear List, I've compiled asterisk (both 0.9.0 and the CVS-04/19/04 source trees). I'm using the oh323 channel driver version 0.5.10, OpenH323 v1.12.2, PWlib v1.5.2 When run on a RedHat 9 system, I am constantly getting seg faults. This happens even when I tried removing the oh323 channel driver, so it appears to be something with asterisk. I get crashes either when attempting to
2011 Jan 11
1
hot-plug vfb on Xen domU?
I want to give my clients access to their Xen domU consoles using VNC. This works great using vfb device configured as type=vnc. However I have 2 problems: * I can't figure out how I can add a vfb device to a running domain without restarting it (I have 100+ domU's I want to enable this on, and want to avoid restarting them all if possible) * Related, I can't figure out how I can
2016 May 03
1
Trying to build bootable iso but very confused by syslinux documentation
On 05/03/2016 12:27 AM, Geert Stappers via Syslinux wrote: > On Mon, May 02, 2016 at 11:21:13PM -0400, John Lewis via Syslinux wrote: >> I was trying to follow this tutorial >> https://help.ubuntu.com/community/LiveCDCustomizationFromScratch. i got >> confused with the part about Create an isolinux.cfg file. >> >> The show stopper for me was the mkisofs because the
2012 Oct 29
3
mbox vs. maildir storage block waste
Hi. I recently mentioned in several posts, that I'd tended to use mbox rather than maildir, because you don't loose so much space (due to always allocating full blocks per maildir file and thus per mail). I made some tests of my archive, which consists of some 3,4 million mails at a total of 42GB). Most of these mails are probably normal sized, but there are also some with bigger