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Category: Red Hat and CentOS

Red Hat Enterprise Linux (RHEL) and CentOS

June 19, 2010

Intel VT Virtualisation Technology on Dell PowerEdge servers

Somewhat annoyingly, Dell seem to like to disable Intel’s VT (Virtualisation Technology, sometimes called VMX) in the BIOS on their Dell PowerEdge servers, which means that you can’t use the Xen hypervisor to virtualise Microsoft Windows Server without changing this setting, which requires a reboot of the server to take effect. You can use omreport from the Dell OpenManage Server...
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May 22, 2010

Cancelled yum transactions

If you’ve ever aborted a yum update for any reason, you’ve probably come across messages warning of transaction errors, such as the following example during an update from CentOS 5.4 to CentOS 5.5 that got cancelled part way through: Transaction Check Error: file /usr/include/libdevmapper.h from install of device-mapper-1.02.39-1.el5.i386 conflicts with file from package device-mapper-1.02.32-1.el5.x86_64 file /usr/share/man/man8/dmsetup.8.gz from install of device-mapper-1.02.39-1.el5.i386...
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April 23, 2010

yum install and weird architecture behaviour

I was just trying to accomplish what you would think was a relatively easy task – installing the PHP-GD package from the Atomic Rocket Turtle repository for 64bit CentOS 5 and ran into a slightly cryptic problem. Running yum install php-gd simply produced a dependancy error php-gd-5.2.13-1.el5.art.i386 from atomic has depsolving problems –> Missing Dependency: libt1.so.5 is needed by package...
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