Category Archives: howto

Jenkins install LTS 2.77 TLS error

Posted on September 15, 2017 by dave

Just tried an install of 2.77 LTS into a Centos 7 VM. When it started up, failed due to PXIX TLS error. Huh? On the plugin update. sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) at … Continue reading →

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WordPress Update Fun

Posted on March 22, 2017 by dave

Time to update WordPress to 4.7.3. I used the SVN method. I was using an older version of SVN and required me to update the local checkout. $ svn upgrade Fine. Did it. $ svn sw https://core.svn.wordpress.org/tags/4.7.3/ . svn: E155025: … Continue reading →

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Fun Conversion Buttermilk Math

Posted on January 1, 2017 by dave

For safekeeping, we froze leftover buttermilk into an ice cube tray. 14 cubes. Now I need 2 cups of buttermilk. Weigh a glass using my trusty triple beam balance. 280g Add two random cubes. 340g Add two more. 400g So … Continue reading →

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The New Napster and Launchy

Posted on July 23, 2016 by dave

Rhapsody, the long-suffering little brother streaming music service, recently rebranded itself as Napster. Same app, different name. Big deal. I noticed that I could not start the app with the great Launchy in my new Windows 10 install. Not sure if … Continue reading →

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API Guidelines

Posted on July 20, 2016 by dave

Microsoft recently published ReST API guidelines on GitHub. They are worth reading over if you design ReST APIs. My Highlights: No limit on GET URL length Error response messages (consistency is the key; note the nesting of error info) Pagination: … Continue reading →

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Welcome to Windows 10

Posted on July 17, 2016 by dave

Finally beat the July 28th deadline for upgrading Windows 7 to Windows 10. Made backups with Macrium Reflect first.  Paid for that one, got rid of the perpetually flaky Acronis. Both machines (Intel Core Duo 2Ghz dual-core and old AMD dual … Continue reading →

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Compacting a VirtualBox VM Centos disk

Posted on October 20, 2015 by dave

At work I used Centos 6.4 to convert a large Subversion repo to Git. This required a VM with a 100Gb disk, more than my old iMac could deal with, to the point where I could not update to newer … Continue reading →

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Fun with Dell Laptop WiDI

Posted on July 5, 2015 by dave

I was messing around with the WiDi driver to stream the Grateful Dead show tonite and disabled the Intel Video driver. At this point, the machine started up, did POST, did the swirly page and then a blue dim (not … Continue reading →

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Dirty Printer Test Page

Posted on April 12, 2015 by dave

I started getting vertical dark lines in my ADF scans on the the highly great Canon MF4570dw Laser/Multifunction. Use this to determine location of small bits of dust on your scans. Then clean the glass under the ADF guide, slide … Continue reading →

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New Windows desktop computer with full C drive? Check OS hibernate settings.

Posted on October 14, 2014 by dave

On my new work desktop computer with Windows 7, I noticed a 30Gb file hiberfil.sys filling drive C. Since I don’t use the hibernate function, I can disable it. From a command shell as Administrator G:\> PowerCfg.exe -H off The … Continue reading →

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