BackupExec 2012 (14) on newer Linux

Byetzion 06/08/201329/11/2016

In particular – Oracle UEK, which “claims” to be 2.6.39-xxx, but is actually 3.0.x with a lower version number. Several misbehaviors (or differences) of version 3 can be found. One of them is related to BackupExec. The service would not start on OEL6 with UEK kernels. The cause of it is an incorrect use of a function – getIfAddrs. Everything can be seen in this amazing post. The described patch works, at least to allow the service to start. Check out the comments for some insights about how to identify the correct call.

I am re-posting it here, so it can be found for Oracle Universal Enterprise Kernel (UEK) as well.

Linux

RHEL4 tends to change network interfaces names

Byetzion 06/07/2007

RHEL4 tends to change the names of network cards when there are more than one. If you had a NIC called eth0 during install time, it doesn’t mean that it will maintain that name after the first reboot. It could switch names with its friend, and be called now eth1, while the previous eth1 name…

Clusters | Disk Storage | Linux | RedHat Cluster | Virtualization

Redhat Cluster and Citrix XenServer

Byetzion 09/04/2015

I wanted to write down a guide for RHCS on RHEL/Centos6 and XenServer. If you want to do that, you need to go through two major challenges which you will encounter. I want to save on the search and sum it all up together here. The first difficulty is the shared disk. In order to…

bash | Scripting/Programming | Virtualization

XenServer get VM by MAC

Byetzion 05/12/201206/08/2020

Using the GUI, it could be somewhat complex identifying a VM based on its MAC address. There are several solutions on the network using PowerShell, but I will demonstrate it using a simple bash script, below. Save, make executable, and run. Enjoy #!/bin/bash if [ -z “$1” ] then echo “Requires parameter – MAC…

Linux

Bonding in RedHat RHEL4

Byetzion 20/07/2008

This is a rather common knowledge now that on RHEL4 you need to state inside /etc/modprobe.conf the following line, when you want more than one bonding interfaces: options bonding max_bonds=2 Then you attempt to use a trick to address different bonding devices with their name (aka, bond0 and bond1, and maybe bond2, etc), using an…

Linux

Service account

Byetzion 27/05/2009

Assume you have a single purpose account. Maybe some service account, user which should run a single task ever, or even a case of a limited menu interface. You want your user(s) to reach there using SSH because that is the method to do it right and secured. You want it to be easy for…

Linux

A bug in restore in Centos4.1 and probably RHEL 4 update 1

Byetzion 26/02/2006

I’ve been to Hostopia today. The land of hosting servers. I’ve had an emergency job on one Linux server, due to a mistake I’ve made. It appears that the performance hindrance of using raid0 instead of raid1 (Centos/RH default raid setup is raid0 and not raid1, which led me to this mistake) for the root…

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