5 :: Upgrade From Fedora And RHEL To CentOS?
Jul 9, 2009
I have a very unusual [and most likely unsupported] upgrade path I need to take.
I have two servers, both Dell PE1800's that I need to upgrade.
One of them is a Fedora Core 4 (x86) box and the second is RHEL5 x86_64.
I need to do an in-place upgrade to CentOS 5.3 without having to reinstall from scratch and keeping my downtime to an absolute minimum. Each of these servers has about 10TB of data stored and I really don't want to have to reformat and restore from backps.
How can I do this?
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Apr 4, 2010
My RHEL 6 computer at work cannot have access to the internet. Is there any way I can upgrade my kernel without internet access? I do ofcourse of another PC with internet access and a USB flash drive.
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Feb 15, 2010
My machine is running with RHEL 3 and the kernel version that I am using is 2.4.21-37.EL. I would like to upgrade present gcc 3.2.59 to gcc-3.4.6-8. I tried but encountered with errors like dependencies and many more. how to upgrade gcc.
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Feb 16, 2010
A client has sent me an RHEL 5.1 box for me to do some work on, but it's not registered with Red Hat. This is causing me problems, because it's a minimal installation, and I need some more dev software.My immediate reaction was to install various bits (emacs, and so on) from my Centos 5(.0) DVD.The base RHEL system only had one (disabled) repo entry,so I added a yum DVD repo entry in yum.conf.d.
This looked good to start with, but it doesn't work. Something in RHEL's pirut/yum/rpm/whatever is getting confused, and can't work out what is/isn't installed.
Question - how do you maintain an unregistered RHEL box? Has RH done something to make life difficult? Is my problem simply that I'm using a Centos 5.0 DVD, instead of Centos 5.1? Am I stuck with downloading lots of rpms from the net and doing everything manually? I really don't want to do that.
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Nov 18, 2009
i have old RHEL 3 system which has kernel 2.4 installed into it. I wasnt to upgrade it to RHEL 5.x so i downloaded a kernel 2.6 package but was not able to compile it.
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Feb 20, 2011
I am currently setting up a Mono environment (mono, monodevelop, gtk#, etc.) in order to experiment with C# programming. Ideally I would like to use the latest version of mono, 2.10; however, F14 repos only carry 2.6.x . Compiling and installing 2.10 from tarballs is causing me dependency troubles which I'm not willing to dedicate much time to. In the meantime, I came across this Novell-hosted rpm repo, which is supposed to be used by RHEL/CentOS users:[URL]. Is it possible to somehow add said repository as an installation source via yum/rpm, or the differences between Fedora and RHEL repositories goes beyond aesthetic differences?
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Apr 5, 2010
*Trying to change some Linux severs timezone from EDT to GMT remotely
*Unable to run "system-config-date" tool from command line
Date:
Mon Apr 5 09:31:10 EDT 2010
cat /etc/sysconfig/clock:
ZONE="America/New_York"
UTC=true
ARC=false
[code].....
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Jun 23, 2010
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.
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Mar 22, 2009
Attach a Fedora/RHEL/CentOS system to an Active Directory DomainBelow is a step by step outline of how to configure a Linux Samba fileserver to use an Active Directory domain for authentication and authorization in place of flat files. Note that this configuration has been replicated using Fedora 10, RHEL 5.3 and CentOS 5 since they all more or less share the same code base.me of the example server in this document is erver1.domain.forest.org, substitute correctly where appropriate. At the very least following packages must also be installed:
sambasamba-commonsamba-clientkrb5-workstationopenldap-clientsIt would be prudent to understand the underlying concepts of how Kerberos and Samba work prior to deploying this type of server. I find that SE-Linux will interfere with Samba services, particularly with winbind. I usually set SE-Linux to be in a permissive mode. It is possible to update the SE-Linux policies but that is outside the scope of this document, i.e you're on your own. In some cases I turned SE-Linux off since it was causing winbind to stop responding.
1. Set NTP to use the correct server for your Active Directory domain:shell> system-config-timeSet the primary NTP server to be your domain/forest NTP server2. Make backups of and edit the following system configuration files:a. shell> cp /etc/resolv.conf /etc/resolv.conf.bakb. shell> vi /etc/resolv.conf
nameserver dns_server1_ip_address
nameserver dns_server2_ip_address
search domain.forest.org
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Aug 13, 2010
Has anyone successfully kickstarted a rhel/fedora/centos over HTTPS ? In other words, is it possible to do the rhel/fedora/centos install from running apache with SSL enabled?
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Feb 23, 2010
I am trying to see if there is an authbind equivalent or authbind package for CentOS/RHEL? x If so, where can I get more info and download it? It seems to be only available for Debian and Ubuntu.
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Aug 31, 2010
We are slowly migrating from a predominantly Windows house to a 50/50 Win/RHEL operation and even further in the future.Currently, we have a LOT of Windows folders that are created by custom applications which, upon creation of a new folder set, applies the corresponding ACL so that only the associated groups are able to access the folders. Now for the problem, we are migrating the applications to a RHEL55 environment and it is creating the folders on that system now but the groups are still residing in the Windows AD. Is there an "easy" (I know, a very relative term) to have the Windows groups given permission to the Linux shares without very much manual intervention?
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May 16, 2010
i would like to upgrade my redhat without connecting internet. just offline mode. is there any one can guide article documentation step by step. the current os is cat /proc/version Linux version 2.6.9-5.ELsmp [URL] (gcc version 3.4.3 20041212 (Red Hat 3.4.3-9.EL4)) #1 SMP Wed Jan 5 19:30:39 EST 2005 and planning to upgrade Linux version 2.6.18-128.el5 [URL] (gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Wed Dec 17 11:41:38 EST 2008 as i have not done this task before.
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May 14, 2010
My current Linux Version:
#more /etc/redhat-release
Red Hat Enterprise Linux Server release 5.2 (Tikanga)
OS Bit is :
#uname -a
Linux <hostname> 2.6.18-128.1.16.el5 #1 SMP Tue Jun 30 06:45:51 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
Now i want to upgrade to RHEL 5.3 (ie)Red Hat Enterprise Linux Server release 5.3 (Tikanga).
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Nov 3, 2010
Can we upgrade RHEL 4.8 to RHEL 5.5?
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Jun 14, 2011
I was using RHAT 6.0 Open Client for a couple months and didn't have any issues. Recently my company released version 6.1 of Open Client and recommended to upgrade it. Upgrade went smoothly and I didn't notice any problems until at some point it failed to run 'Software Update' application.
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Feb 23, 2010
I install CentOS 5.4 on a customer's workstation. They out-of-date nature of Enterprise is not at all working out for him. Since Enterprise is essentially FC6, is it possible to just upgrade him to FC12, or am I looking at a wipe and reinstall?
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Jan 13, 2011
We are facing a problem a rpm file called TrackerSetup.rpm
rpm -ivh TrackerSetup.rpm
error: Failed dependencies:
rpmlib(PayloadIsLzma) <= 4.4.6-1 is needed by com.elance.tracker-2.1.16-1.i586
[code]....
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Jan 5, 2010
what is the diffrence between RHEL and Centos. diffrences between support,packges, Xwindow, organization funda, someone say redhat is launch Centos like fedora. but when fedora for beta, RHEL for tested with formal support so why redhat launch this Centos.i get some information from net but not sufficiant for me..
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Apr 3, 2010
I downloaded src of gcc 3.3.3 and tried to compile in RHEL 5 with the existing gcc 4.1.2.
Got following error
[root@localhost gcc-3.3.3-src]# pwd
/home/nikole/gccmy/gcc-3.3.3-src
[root@localhost gcc-3.3.3-src]# which gcc
[code]....
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Jun 12, 2010
I have a software program that when you try to install it on Centos it returns "This programs requires RHEL 4" Is there a work around to get the software to use the Centos software the same as it would RHEL 4?
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Jul 21, 2011
For a audit script that I use, I need a hwinfo RPM for RHEL 5 or Centos 5/6 that works (Opensuse ones do not work). Is there one which anybody knows about?
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Nov 28, 2008
I have been trying all day but so far I am unable to configure yum to use a proxy server to retrieve updates.Due a recent compliance mandate direct internet access had to be removed for a pool of our Cent/RHEL servers. I have added the http_proxy environment variable in /etc/profile using:
export http_proxy=http://ourproxy:8080
export ftp_proxy=http://ourproxy:8080
export gopher_proxy=http://ourproxy:8080
I am using the FQDN of the proxy server, and i can ping that FQDN from the CLI without a problem. When I do this and I reboot the server I can get to the internet through the proxy using links/lynx. Yum however stalls out after loading plugins. I have read in a few places that I need a trailing / after the port number above, adding this and rebooting has no effect.
So I tried specifying the yum.conf file... [URL]. When I do this yum still tries to contact the redhat/cent network directly. No behavior change. If I use tcpdump I can see the server I am running yum on try to directly connect without the proxy, which times out for good reason.
The proxy server I am running is squid, but I can see the server I am running yum on blatantly ignore any proxy settings I have tried so far. I am really in a hole on this one as I have to get several updates to fix vulnerabilities found during our last scan.
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May 4, 2010
In general, how easy is it to convert between CentOS and RHEL (in either direction)?
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Jun 4, 2009
My doubt is " Can we install Xen 3.2 on RHEL version 3".
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Nov 14, 2009
I wanted to access a SAN partion from my two CentOS 5 servers.
1. i wanted to get mounted the partition which i have created in the SAN.for example /dev/sdb is the partition
2. at the same time i wanted to store (Read and write )data in the SAN partition from those two CentOS server.
3. Can we use GFS? or what is the best way?
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Feb 10, 2011
I am looking for a tool that can automatically create a rpm package after compiling from source, replacing "make install" Ubuntu and Debian use checkinstall for that.
What is the equivalent for centos?
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Nov 15, 2010
Which is closer to RHEL 5/6, Fedora 14, Centos 5.5 or another distro? In terms of installation and administration.
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Oct 19, 2010
Does anyone know of any GUI frontends to BIND for CentOS/RHEL? I just can't get the hang of configuring this thing...GUI makes life easier for me.
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May 3, 2011
I wanted to upgrade my Apache from 2.2.3 to 2.2.4 because some application issues. where we can get Apache 2.2.4 rpms for CentOS/RHEL build? I say 2.2.4 rpms in Fedora repositories? Will fedora builds work in CentOS/RHEL?
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