I had great fun watching the YouTube videos for “The Erlang Master Classes”, at The University of Kent, and typing Erlang code along the way. Go and see for yourself at http://www.kent.ac.uk/elearning/themes/masterclasses.html. Here are some thoughts from prof. Simon Thompson, http://profsjt.blogspot.co.uk/2015/06/the-erlang-mini-mooc-pilot-what-have-we.html.

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I bought the ebook edition of FreeBSD Mastery: ZFS this June. While the authors’ intentions are good, the 2015-05-21 edition has some errors and mistakes. The table below is nothing more than an unofficial errata of said book. Beware, what you find below might be due to my lack of understanding FreeBSD, ZFS, or the […]

Read More → Unofficial errata: FreeBSD Mastery: ZFS

Download the required updates. Extract the XS*.xsupdate files. Transfer the XS*.xsupdate files to, say, /tmp/xsup on the master. Login on the XenServer console. Delete old log files in /var/log, e.g. /bin/rm /var/log/*.gz. Create if necessary, and change directory to /tmp/xsup. Run: Run: Delete the XS*.xsupdate files from /tmp/xsup. Shutdown the running VMs and restart each […]

Read More → Upgrading XenServer 6.2

A colleague came into my office claiming the camera in his Dell Latitude E5540 didn’t work. Here’s a link to the Dell Latitude E5540 Owner’s Manual. After a bit of troubleshooting, I removed the display bezel. Lo and behold, the camera connector was halfway out of its socket. Once I pressed the connector into place, […]

Read More → Loose camera connector in Dell Latitude E5540