CentOS 5 :: YUM - Install Versus Upgrade
Feb 18, 2011
How does yum determine to "upgrade" an rpm verses "install" (and possibly delete) a package when performing a yum update? I have read documentation that yum uses the "Obsolete" and "Conflicts" tags within the rpm to determine whether to upgrade or install a new rpm. Is this correct and complete? I recall from somewhere kernel rpms should always be installed and never upgraded. How does yum determine that kernel rpms need to be installed using rpm -i as opposed to rpm -U? I have scanned a kernel spec file looking for clues without any luck.
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Feb 12, 2009
I have two CentOS servers on the same LAN. One is CentOS 4.7 the other 5.2 They both also have a WAN interface to the same remote network. On CentOS 4.7 I can ping the remote network through the CentOS 5.2 server. i.e. ping -I eth0 remotehost On CentOS 5.2 I can NOT force the ping to go out the CentOS 4.7 server without over riding my routing tables to make eth0 a more direct route than the eth1 route.
On 5.2 If I do the ping -I eth0 remotehost, and a tcpdump on eth0, the outbound ping will not be going out eth0, he overrides it and sends it out eth1. In fact, on CentOS 4.7 if I do not have a route to the remote network through the other server (turn proxy arp off on the 5.2 machine), I will get "Destination Host Unreachable". I would ideally like to get the 5.2 machine to behave the way the 4.7 machine does.
My real life application for this is that I have a CentOS server in a location that controls access to the Internet. There is another router on the netowrk that handles traffic back to our corporate office. the CentOS server also has the ability to get to the corporate office. I ping the corporate office through eth0 to find out if the link through the other router is indeed up and active. I want to make this a CentOS 5.2 server but alas, I can not tell if the other route is up or not.
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Feb 17, 2011
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?
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Mar 8, 2010
I have been a RPM-based distribution guy for a long time (redhat,centos,suse). We have a large shared and dedicated web environment that is starting to require more and more linux. I am in a position to switch gears and move to ubuntu if it makes sense. Things that are important to me are:
1. ease of deployment (both servers and websites themselves)
2. patch management
3. documentation
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Feb 10, 2010
I have a server with 12 Gig or ram in it (has per bios detection). Free and meminfo agree.
[root@virtualHost ~]# free
total used free shared buffers cached
Mem: 7726080 794136 6931944 0 50036 391236
-/+ buffers/cache: 352864 7373216
Swap: 8385888 0 8385888
xm top does not :
xentop - 13:36:07 Xen 3.1.2-164.11.1.el5
5 domains: 2 running, 3 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 12577024k total, 12575312k used, 1712k free CPUs: 4 @ 2833MHz
In my /proc/cpuinfo I can see pae in the flags. None of my domUs are going to need more than 3 GB of ram but I was wondering what is the REAL ammount of RAM accessible to the system. If I run 4 domU at the same time. Around 7 GB or 12 GB?
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May 26, 2010
I am running CentOS 5.5 Final on my VPS and IO am using lighttpd for a webserver. I am trying to find a way to upgrade this to the latest version using Yum.I want to find a repository that will allow me to upgrade to lighttpd-1.4.26-2.el5 with the required dependencies. I would also like to do the same for LUA 5.1.4.I have found older versions of lighttpd but not the latest in an RPM / Yum installable version. I have found tarballs and binary version but I am of the understanding that I should use yum to manage my packages to keep the system neat and easy to upgrade / remove etc. in future.
Can anyone advise me as to where I can find these programs and how I would connect to the right repository to get them.
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Apr 16, 2011
I think CentOS 5.6 installs PHP 5.1 by default right? How do I upgrade PHP 5.1 to 5.2 or even 5.3 if possible?
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Nov 7, 2010
I'd like to clear up my misconception towards various types of installations. Is one better than the other? Do more senior people prefer compiling from source code? Hows does is compare to yum install or install from rpm?
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May 29, 2009
IIm running several Webservers on CentOS 5.2. Due to the Hosting-Platform I use, it is recommended that there will not be CentOS 5.3-Updates installed. So I searched the net a lot now but didn't find a propper solution. Is there a way to tell yum only install patches and updates for version 5.2 and not to upgrade to 5.3?
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Feb 14, 2009
I recently started trying fedora 10 out on live cd (in my case usb ) and loving it. I want to install it, should I get the dvd image, or would it be okay for me to just install off live cd (usb) and install whatever I want through the package manager later... Why/why not? Also on live usb, I can't find the package manager under applications.
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Nov 9, 2010
Followed all the steps to install the Netbook Edition. Boot up on Live USB worked great, install went thru without a hitch. Changed the BIOS settings to boot on the SSD HD. Unfortunately, after th BIOS splash screen, all I get is a blinking cursor on the upper-left corner of the screen. I suspect my SSD is starting to fail.
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Sep 17, 2009
I have java jdk1.5.0_08 installed on linux x86_64 architecture and I can execute java -version no problem. I took the same binaries and installed on ia64 architecture and the command java -version gives and error "cannot execute binary file" The Linux OS versions are 2.6.18-128.1.10.el5 on x86_64 and 2.6.18-128.4.1.el5 on ia64 Do you know whether the jdk1.5.0_08 binaries are compatible between x86_64 and ia64 architecture. The answer may be no, but I may be wrong and there could be some other issue. Where can I get the jdk1.5.0_08 specific to ia64 architecture for Linux version 2.6.18-128.4.1.e15
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Jul 10, 2009
I have an intel DP35DP motherboard - ICH9 southbridge - set to AHCI mode. Working fine under 5.2. Yesterday I updated to centos 5.3, and got kernel 2.6.18-128.1.16 and now it can't boot. It hangs trying to read sata1 with DRDY errors and exceptions.So then I installed 5.3 from a DVD onto a new drive, and got kernel 2.6.18-128. This worked, most of the time, but occasionally gave me this error. I then updated my BIOS, and the error went away.Then I updated this new working drive to the latest kernel (yum update again) and got kernel 2.6.18-128.1.16, and now it wont boot again, with the same message.
ata1: failed to read log page 10h (errno=-5)
ata1.00 exception Emask 0x1 SAct 0x1 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: cmd 60/08:00:61:4b:38/00:00:3a:00:00/40 tag 0 ncq 4096 in
ata1.00: status: { DRDY }
ata1.00: revalidation failed (errno=-2)
ata1.00: revalidation failed (errno=-2)
[Code]....
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Jan 26, 2011
have all ways been hiding in the background read not say a thinglets start well i look after 2 dell poweredge 2650 with 12 gig ram installed servers has been running fine onwell i though it was time to upgrade to 5 all went fine till reboot Memory for crash kernel (0x to 0x) not within permissible range ! well what i have been reading this is the norm for now What is mean by ignore it? LoLwell so i did the system keeps boot till i get to this linesbin/mingetty: /sbin/mingetty: cannot execute binary file alot, and it shows. INIT: Id "5" respawning too fast: disabled for 5 minutes ...so maybe its a memory issue so took 8 gig out left 4 in the system now it reboot alls good with only 4 gig of ram installed so is there a way to fix it to use all the ram can i get the system boot on 4 gig and then add the 8gig later on
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May 20, 2010
I make upgrade from CentOS 5.4 to CentOS 5.5. Architecture is historical i386. On first boot my system was freezed by disabled earlier but not removed manualy writed xdm service. I disable it. But not found network. I see hardware address of card fe:ff:ff:ff:ff:ff. This address is not normal. But how to restore eeprom of this network adapter?
I don't think its trouble of new CentOS. I think this is random incident.Configuration of computer is Intel D510MO motherboard with integrated atom processor and realtek 8111dl nic. I know some trics about fix mac address in centos, but how to fix this address in bios?
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Feb 25, 2009
I have installed CentOS 5.2, apache tomcat 5 already included, How can I upgrade tomcat to version 6 ?
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May 7, 2010
I have encountered the same problem as indicated in this post: "udev hang after upgrade from 5.3 to 5.4"[URL]... I'm testing the upgrade path to centos 5.4 on several virtual machines prior to upgrading our production systems. I have upgraded centos 5.2 --> centos 5.4 and centos 5.3 to centos 5.4. In both cases udev hangs after the upgrade. The following message is displayed on the console: "Starting udev: Wait timeout. Will continue in the background [FAILED]"
I found another related post: "udev hangs on boot for a long time, suspect pam_console_apply"[URL]..So, I booted by VMs using the "udevdebug" option to grub and received the same error message - "udevd-event [###]: run_program: Waiting ## seconds for output of '/sbin/pam_console_apply /dev/..."
In my /etc/ldap.conf file "bind_policy hard" is commented out. I added a line "bind_policy soft" as described in the post and my VMs booted fine. NOTE: This problem is not encountered with a fresh install of CentOS 5.4 and the "bind_policy hard" option in the /etc/ldap.conf is commented out as in the upgraded systems. What is really causing this problem and how do I get it addressed? I have a couple hundred systems to update from various releases of CentOS 5 to the latest current version 5.4. It would be nice to get this bug squashed..
[Code]...
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Oct 12, 2010
Recently while using a Highpoint 2310 (raid 5) I lost the mother board and CPU. I had to reinstall Centos and found it needed to initialize the array to function. Total loss of date. Question: If I use a true hardware card (3ware 9650se) and experience a serious hardware loss or the C drive can the card be installed with the drives on a new motherboard and function without data loss even if the OS must be reinstalled.
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Nov 23, 2009
i want to upgrade to 11.2, however, i am very cautious about losing my files. there are files on this system which i absolutely can not afford to lose, and they are only on this system. which method of upgrade will be the best, best as in safest.
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Aug 5, 2009
there is a bug on the quad core B2 opteron cpu there is a beta patch available , but only for for 2.6.24 kernel i am very happy with my centos, and i would upgrade the kernel to try this patch i am new on linux, so i need a precise tutoriral to upgrade and keep the actual configuration of the kernel
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Jul 28, 2010
Is it possible to use the upgrade feature of 11.3 to upgrade from 11.0?
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Apr 14, 2009
I've been living too long in apt-land, that's for sure. One of my servers is for an application the vendor indicates "isn't supported under 5.3". Nevertheless, I'm urged to upgrade from 5.2 with 178 packages ready to go when I log in. And for most hosts, that would be a fine thing.
However, for this particular host, I don't want to do that. I do want to upgrade any essential packages (i.e., security), of course, because I don't have a choice there, really. I can certainly look at the security emails from the project, and just upgrade those. Is there an easier way to do this?
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Apr 26, 2010
What is the best way to upgrade to PHP 5.2? I am currently using PHP 5.1. Is the only way to use the testing repositories?
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Apr 26, 2010
I have a server currently running 5.2. The developers have asked me (the SysAdmin) to upgrade the server to 5.3 -- but not all the way to 5.4, as they haven't tested the app on 5.4 yet.I believe a simple `yum upgrade` will move me all the way to 5.4 -- at least, `yum check-update` shows a whole bunch of 5.4 packages.
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Dec 21, 2010
We are in need to upgrade PHP 5.3.3 to 5.3.4 in order to secure PCI compliance. We have been able to upgrade the CLI version without problem , but the apache module is stuck at 5.3.3. Can anyone provide some detailed steps on how to upgrade, or should I just attempt to compile from source?
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Feb 3, 2011
want to upgrade php from 5.2 to 5.3 it can be possible with RPM and YUM but i want to know step by step how it can be upgraded using tar.gz file of PHP and from where i can download it.
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Mar 20, 2011
Plesk 9.5.2
CentOS 2.6.18-194.17.1.el5
I would like to upgrade from PHP 5.1.6 to PHP 5.2.0.
I just need this one isolated upgrade.
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Apr 14, 2011
I have tried to upgrade my CentOs 5.5 to 5.6 . I have these errors:
file /usr/share/man/man8/pam_access.8.gz from install of pam-0.99.6.2-6.el5_5.2.i386 conflicts with file from package pam-0.99.6.2-6.el5_4.1.x86_64
file /usr/share/man/man8/pam_cracklib.8.gz from install of pam-0.99.6.2-6.el5_5.2.i386 conflicts with file from package pam-0.99.6.2-6.el5_4.1.x86_64
[code]....
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Aug 31, 2010
I want to upgrade existing MySQL 5.0.77 version on CentOS 5 Red Hat Linux to MySQL 5.1.x. Is anybody have list of patches or upgrades to upgrade to MySQL 5.1.x?
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Apr 6, 2010
Why should I concern myself only with a graphical front end rather than learning APT or RPM? Or are those really, really hard to learn?
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