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34758 discussions

PostgreSQL database design tool
by Steve Campbell 23 Sep '11

23 Sep '11

Been thinking about playing with PostgreSQL. When I did my research, on the PostgreSQL site, there were a few tools they "recommended" for design, display of schemas, etc. Open System Architect seemed to fit my demands, but unfortunately, the installation documents do not exist, at least the links go in a circle to nowhere. There's a binary which I assume can be executed, but at least one of the libraries are versioned wrong, and I don't want to play with symlinks just to make this work. Has anyone installed a tool for PostgreSQL that will display logical and physical data maps of a database such as what OSA is supposed to do? Can someone recommend something they feel is worthwhile, regardless of it's purpose, when running PostgreSQL? I'm running 64 bit Centos 5.7 and PostgreSQL 8.1. Thanks for any opinions. steve campbell

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How to update CentOS 5.4 to 5.6?
by Aleksey Tsalolikhin 23 Sep '11

23 Sep '11

Is there a way to update a CentOS 5.4 server to 5.6 (but not 5.7)? "yum update" takes me all the way up to 5.7. Best, -at

10 11

OT Test
by Phil Savoie 23 Sep '11

23 Sep '11

This is a test sorry for the noise. phil

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Installing yesterday's CentOS (or how to install the patch/package set from 3 weeks ago)
by Aleksey Tsalolikhin 23 Sep '11

23 Sep '11

Hello, Let's say your operating policy is "no patch updates without testing first in the test environment". Let's say it takes you 3 weeks to test. Over the course of the 3 weeks, the repo changes (new packages added, old removed). Is there a way to "freeze" a set of packages so that when I run "yum update" on a Prod server it'll get the same package and patch set as the Test server did 3 weeks ago? It's been suggested to maintain a local mirror, and take rsync snapshots of it daily, so then you can point the end node to a particular repository. What other solutions are there? Best, -at

4 3

Centos 6 First Install, gripes - cool things- tips/help
by Bob Hoffman 23 Sep '11

23 Sep '11

Finally got a new server the other day. You know I had to try out centos 6 with this one. dual quad cores, 24 gb ram (12 for each cpu) 6 working drives bays. My first big surprise was the partition system with anaconda. It is a lot different than the centos 5.x version. I am sure it is a bug that it has options for hot spares but does not allow it to be ungreyed out. I think in the end I will have to manually go into command line and take the third drive of the mirror and turn it into a hot spare. Second issue, which quite shocked me, was the loss of the ability to clone a drive during the install. In 5.x I would make all the raid partitions, LVM/groups, boots, etc. on one drive, then simply hit 'clone' to make the second (and third spare) in the array. This time I had to manually do each and every drive, exactly as the other, partition by partition. Not fun if you are reinstalling a lot to test configs and to get it right. Virtual Machines sound cool and this will be my first attempt. That nasty selinux 'silently' is keeping me from putting the images on the second raid 1 array I have...sigh. Initial install of virt machine stuff popped me right into the command line, even though red hat specifically says the graphic stuff has more options. Second install used all the graphic desktop stuff to make sure I had the option (first time ever saw linux desktop, sweet). Interesting that the initial settings of my host had absolutely no network access at all. I had to manually change the network scripts to enable them...each time I reinstalled to play around. (host needs access for ssh and such). Surprised to find a large (75%?) of packages relating to virtual machines not selected in the packages during install...odd. Some might be dependencies, but some obviously were not installed the first few times until I caught that. qemu not selected during install of virt machine....? Still working on getting the raids to work right (first time adding a second 'non system' raid 1) with the whole 'no hot spare' and 3 drives as one. Sure is hard to tell it all apart in the graphic desktop since all the drives are named exactly the same. Learned to never touch the lvm manager graphically, it just seems to not understand the raid setups and wants to reinitialize or destroy everything. I'll stick to command line for that. Best part...using an ipmi card with kvm so I can sit on my windows and do pics/vids of the process for a nice detailed website how to...all the way from bios to deploy...kvm, web, guests, etc...should be fun...should be. Luckily for me, Kernel based virtual machine guys decided to use the abbreviation KVM instead of KbVM. There are about 10 billion pages on kvm switches and tons of other junk, as well as books. Kbvm? Not so much. If I could read Danish (or dutch or german?) I could buy the single book in existence to help with KbVM. Sigh. Should be an experience. I will be posting a lot of stuff on a private forum (well, open to public, but no registrations) about what worked for a stand alone server, hosting multiple websites in a KVM environment... Will even try to use SElinux all the way also. If you want access to post things in that forum, send me an email and I will gladly add you. Nothing more fun than boxes of pizza, coke, and mad google searches when a new version of redhat/centos comes out.... see ya in the funny papers.

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6.1 Update request
by Digimer 23 Sep '11

23 Sep '11

Hi devs, If/when someone has a few minutes, could someone post an update on 6.1 on http://qaweb.dev.centos.org/qa/blog ?. I suspect the devs have been busy with the just-released 5.7 version. :) -- Digimer E-Mail: digimer(a)alteeve.com Freenode handle: digimer Papers and Projects: http://alteeve.com Node Assassin: http://nodeassassin.org "At what point did we forget that the Space Shuttle was, essentially, a program that strapped human beings to an explosion and tried to stab through the sky with fire and math?"

12 17

Wiki CR Repo Link Defective
by Always Learning 22 Sep '11

22 Sep '11

On http://wiki.centos.org/AdditionalResources/Repositories/CR the link to a copy of 64 bit CR repo is not working. The link is: http://mirror.centos.org/centos/5.6/cr/x86_64/RPMS/centos-release-cr-5-6.el… and the error message is (obtained from trying two distinctly different IPs on two distinctively different ISP networks): "Not Found "The requested "URL /centos/5.6/cr/x86_64/RPMS/centos-release-cr-5-6.el5.centos.1.x86_64.rpm was not found on this server. "Apache/2.2.3 (CentOS) Server at mirror.centos.org Port 80! Centos server IP = 91.210.106.98. Regards, Paul. England EU.

3 6

proverbial floodgates thrown wide open for centos-announce list
by Jon Detert 22 Sep '11

22 Sep '11

Starting maybe ~ 12 hours ago, the proverbial floodgates were thrown open on emails sent to the CentOS-announce mailing list for CentOS 5.x, all on account of individual package releases. RedHat have not done the same. What's up? Are these mistakenly released re-announcements of (previously released) package updates? Or, did the mailman server have a burp or hiccup? Or, have the CentOS dev team been waiting for high tide before opening the flood gates? If so, why?, and how about sending the mother-load of announcements as 1 email instead of 1/package, which would: a) match the reality of the updates being released as a batch, and b) keep my inbox from being flooded. Yes, i could switch my mailman subscription to 'digest' mode, and probably will. Still, I'm wondering why they were batch-released? Regards, Jon

1 0

Centos6: how to debug suspend?
by Theo Band 22 Sep '11

22 Sep '11

I have a desktop installation with Centos 6. A lot works fine, but suspend to ram or disk does not work from the KDE menu. If I choose suspend to RAM, the screen goes dark (black-light on) but nothing further happens. I can give my password to remove the screenlock and continue. But the machine stays on. Obviously the suspend has failed. If I use pm-suspend (as root) all works fine. I've looked in /var/log/messages but there is no hint there. The question is thus, how can I debug this? Could it be a permission issue? Do I need to add myself to a specific group? Thanks, Theo

1 0

w3pw install
by Tim Dunphy 22 Sep '11

22 Sep '11

hey list, I'm attempting to install the w3pw password wallet on centos 5.6 http://w3pw.sourceforge.net/ The interface works well enough, but for the life of me I can't find the default password for setup or the file in which this is set. Does anyone happen to know? thanks! tim

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