Archive | Centos

27 February 2012 ~ Comments Off

Beyond Bundler: A Configuration Management Starter Kit

Configuration management or “infrastructure as code” can provide a common language for application developers and operations specialists alike to describe the infrastructure requirements of an application. By capturing these requirements in code, bootstrapping becomes a repeatable process, and insights from operations teams supporting the application in a production environment can be fed back to the…

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21 February 2012 ~ Comments Off

Fixing CentOS Root Certificate Authority issues

I often hit problems cloning git repos from github, and end up googling the answer.
This is the solution I use most often. Thanks Eric!

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21 February 2012 ~ Comments Off

Fixing CentOS Root Certificate Authority issues

I often hit problems cloning git repos from github, and end up googling the answer.
This is the solution I use most often. Thanks Eric!

Continue Reading

28 January 2012 ~ Comments Off

HP Microserver Remote Management Card

I recently acquired the Remote Management card for my HP Microserver, which allows remote KVM & power control, IPMI management and hardware monitoring through temperature & fan sensors. Note the extra connector on the card in addition to the standard PCI-e x1 connector which matches the dedicated slot on the Microserver motherboard. This presented a [...]

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09 January 2012 ~ Comments Off

Upgrading RHEL 6.2 to CentOS 6.2

I had a utility server running RHEL 6.2 (I installed it as part of a RHEV evaluation process). However, I have no RHEL entitlements so am not able to get updates. So, I converted it to CentOS 6.2, with a little help from this post: yum clean all mkdir ~/centos cd ~/centos wget http://mirror.centos.org/centos/6.2/os/x86_64/RPM-GPG-KEY-CentOS-6 wget [...]

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06 August 2011 ~ Comments Off

Forcing GUID Partition Table on a disk with CentOS 6

CentOS 6 is now out so I can finally build up a new HP ProLiant Microserver that I purchased for a new home server. Amongst many new features, CentOS 6 ships a GRUB bootloader that can boot from a disk with a GUID Partition Table (GPT for short). Despite not having EFI, the HP BIOS [...]

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05 August 2011 ~ Comments Off

Using mock to build 32-bit shared libraries on 64-bit platform

Most of the servers I manage are 64-bit. I have one linode box that is 32-bit. I chose 32-bit because it has better memory usage than 64-bit, which is possibly important with a 512MB instance. This was probably a mistake as the management overhead involved with maintaining a 32-bit infrastructure for just one 32-bit machine [...]

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13 July 2011 ~ Comments Off

DevOps Gurgaon Meetup : Some High octane gyan

DevOps Gurgaon Meetup : Some High octane gyan

With the clock striking 6 P.M. on the 12th of July,  few geeks from MakeMyTrip were all set to brainstorm with some other fellow geeks from the DevOps community, for the first time in the Northern regio…

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11 July 2011 ~ Comments Off

DevOps Gurgaon Meetup

DevOps Gurgaon Meetup
Time  Tuesday, July 12 2011 · 6:00pm – 9:00pm
Location :
MakeMyTrip Office – Gurgaon

103 Udyog Vihar Phase I, Gurgaon – 122016, Haryana, India
Gurgaon, India

Come to DevOps Gurgaon Meetup to:-
- hang aroun…

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14 June 2011 ~ Comments Off

Storage controller probe order & Kickstart

I’ve been configuring some Dell servers today that have one of Dell’s MD3220 storage arrays attached. The servers were completely blank so they needed kickstarting with CentOS 5.x. Not a problem, just use the standard one that’s used for 99% of the servers. The problem that arises is the standard kickstart assumes the first disk [...]

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