CentOS 5 :: Will Redhat Support CentOS Under Any Circumstances?
Oct 16, 2009
Will Redhat support CentOS under any circumstances? I have heard at my employer that if you setup you system with CentOS and then on down the line you find you need RHEL support that you can purchase a license from Redhat and they will support your CentOS installation.Is that an official policy at Redhat? Unofficial? Or completely untrue?
Is it possible to list/find/compare the program versions on a Centos system, against Redhat/Centos Errata/Security/Bug lists? Sort of looking for a way to make sure that all the packages on a system are ok, and not a security risk-- Without having to update every package. A pseudo code, in my mind is:
I try to set up a 5 nodes cluster and a shared Coraid Storage with conga but it fails with "Shared Storage Support" checked.The message is:'A problem occurred when installing packages: Packages of set "Clustered Storage" are not present in available repository' and it is shown under every node on the next sceen after I submit.The pc where conga runs is on the same subnet (192.168.xxx.xxx) and it has the same /etc/hosts of the other nodes.In that pc runs a proxy too and the nodes go out through it (that pc has 2 NICs)Every node (2.6.18-128.1.14.el5-xen-x86_64) is patched whith the last yum update (this morning) the same is for the pc (2.6.18-128.1.14.el5).Every node has 4 NICs , 2 NICc towards the storage the others in bonding towards the WAN.Every node is exactly alike, they have been installed with the ks.cfg generated from the first node and they all have the support for Clustering, Virtualization, and Clustered Storage.
I'm setting up a raid 5 on several hard disks with a layer of lvm on top for good measure.I know the recent kernels support growing software raid, but since centos runs 2.6.18, I wanted to make sure it'll work. Does the centos kernel support growing raid devices?
I have been using SLES 10 SP1 so far with about 6TB Raid system without problems.I have upgraded the OS to CentOS 5.3 i386 and I have noticed the kernel can not recognize raid system larger than 2TB.Is there any parameters that I have to set ? or the i386 distribution simply does not support larger raid, so I have to use x86_64 version, instead?
I am running a CentOS 5.5 system which does NOT support VT Technology, so I am unable to use Xen HV. I am very happy with OpenVZ other than the fact that it doesn't support Windows, only Linux.I'd like to have VMWare Server 2.x installed, but it appears that OpenVZ changes the Kernel to, in my case, 2.6.18-194.3.1.el5.028stab069.6. The default kernel on my system is 2.6.18-194.3.1.el5.i386.If I change grub to load 2.6.18-194.3.1.el5.i386, VMWare will work but OpenVZ will not. If I change grub to load 2.6.18-194.3.1.el5.028stab069.6, OpenVZ will work, but VMWare will not.If I try to run /usr/bin/vmware-config.pl while in the 2.6.18-194.3.1.el5.028stab069.6 kernel, I get an error of:
None of the pre-built vmmon modules for VMware Server is suitable for your running kernel. Do you want this program to try to build the vmmon module for your system (you need to have a C compiler installed on your system)?Using compiler "/usr/bin/gcc". Use environment variable CC to override.
What is the location of the directory of C header files that match your running kernel?[/usr/ src/ linux/ include]I'm so lost as what to do now..is there anyway I can compile both of the kernels together somehow?
I'm in a research institution with about 20 linux desktops currently running different versions of fedora. The sysadmins used to update and configure each of these machines individually. We want to move to centos to make operating systems more uniform and simplify administration.
The basic needs are: One central, easy-to-use package management for all machines central management of configuration files for all machines. In addition it would be nice to have a local repository with a subset of user-installable rpms. It looks like rhel can do this with the redhat network. Is it possible on centos, too? If yes, is it necessary to pay a subscription to rhn to use their web hosting of services?
I'm running CentOS V5.5. I am intererested in several packages available under RHEL V5. Is it possible to install these directly into CentOS or should I be looking for a package built for CentOS 5 specifically?
i am unable to access internet in linux editions (redhat 5.4 & centos 5.5) recently i have taken a reliance internet connection but the think is i didn't get any ipaddress from reliance, but i accessing internet in window 7 and i have triple boot. pls any one give the solution.
i am using the redhat cluster suite (luci and ricci) on my centos 5.3. i have 2 nodes in a cluster. when i poweroff the first node on wich a vm service is running, the service switchtes to node2. so far, so good :) but when i restart node1 the service is not failback to node1! i have created a failover domain with both nodes and priorized whre node1 has prio1 and node2 has prio2.
how to install redhat 6 beta kernel source rpm under CentOS 5.5? I just download the kernel source rpm-- kernel-2.6.32-19.el6.src.rpm. And I tried run "rpm -i ", it was failure. The error message is "error: unpacking of archive failed on file /home/xliang/rpmbuild/SOURCES/Fedora-KVM-allow-userspace-to-adjust-kvmclock-offset.patch;4bf439e4: cpio: MD5 sum mismatch"
I have added apache application into redhat cluster. If the apache process failed, it will cause the service group fail over. I want to disable the application monitoring. I search throung Internet and it depends on the apache init script. If I change /etc/init.d/httpd status always return 0(success). THe service group will not fail over even apache failed.
However, I want to remain the application monitoring but stop failover. If the application like apache failed, I want Redhat cluster to try restart the application like 3 or 4 times. If restart failed, it will not failover.
If I have Redhat 5 Enterprise workstation, how can I configure it to point to Centos 5 so I can receive updates and fixes through Centos rather than paying for Redhat support ? I heard this can be done, but wasn't sure what the steps are in terms of configuring Redhat
my server is sun x4450.Memory is 64G RAMinstall CentOS 5.3 64bit.free -m only dispaly 32G RAM,but BIOS can display 64G RAM.how to setup support 64G RAM?
I am a nebie to CentOS and I noticed that I don't have much fonts installed and display looks 10 year old. How others who use CentOS as a desktop manage with their fonts?
I noticed a link: [URL] and it mentions that Fedora and Redhat don't have support for True Type Byte Code Interpreters. Is it true? If so how do we enable it.
I have done an initial CentOS install. I've now found out that the driver that I want to install (nVidia for GPU support) will not support the Xen feature that I installed. I'd like to avoid having to re-install completely. Is there a way to remove the Xen support that is documented somewhere?
I've been trying to make install apache 2.1.8 and php 5.2.3 and work on them. After updating and installing some dependence files, apache and php could both be installed.
Then I tried to configure them. I added the following content to the end of Apache httpd.conf:
Code:
Then I run /path/to/apachectl start, and saw the message:
Quote:
Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included in the server configuration
Then I remembered that I didn't include the rewrite module while making install apache. So I removed the 2 lines I just added to httpd.conf.
But, after running /path/to/apachectl stop and start again, I could still see:
Code:
When I use firefox to open http://host_ip:8080/, I could see "It works!". But when I open http://host_ip:8080/hello.php (the file is already under htdocs), firefox said Quote:
Failed to Connect
Why and how to solve it?
I noticed that for some stupid reason, the conf file wasn't updated at all and the 2 erroneous lines were still there.
What is the long term support plan for CentOS 5.2 (or indeed 5.3)? We are interested in changing our machines away from Scientific Linux 4.5, because support is ending for that OS within 12 months. So we need to make sure that a new OS choice is going to have support for a number of years.
A site -- to -- site vpn need NAT-T . But I don't know whether the Centos_5.2 support that function default, or I have to patch it by myself.If I should patch it all by myself, How to do it ? VPN suite: OPENSWAN KERNEL version : 2.6.18-92.1.22.el5 i686
This is a fresh install of CentOS 5.3 x86_64 with the following packages installed (using yum) as I have always done and has always worked in the past: httpd mysqld php php-mysql php-gd
However any pages requiring mysql fail and the following shows up in the httpd/error_log:
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/modules/dbase.so' - /usr/lib/php/modules/dbase.so: cannot open shared object file: No such file or directory in Unknown on line 0
I've successfully compiled and installed PHP to run with nginx. But I could not use some jpeg functions from GD library. I've checked for libjpeg-devel and gd-devel and found that they had been installed, libjpeg.so is located at /usr/lib This is my configure command:
So as the title says, I am looking for your experiences in this issue, because CentOs and RHEL are very, VERY similar, it is basically the same, so I was wondering, if I can get official support from Autodesk if I'll use their software on CentOs instead on RHEL.