Category Archives: Computers

All my projects.

Raspberry Pi 2 Announced

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The announcement of the Raspberry Pi 2 earlier this week made me happy. The thing I felt with the RPI version 1 is obvious the lack of CPU power. The version 2 has roughly 6x it`s power and 4 cores. Along with double RAM memory (1 GB compared to 512 MB) it`s now a beast in a box for its 35 bucks.

Just a couple of hours later Microsoft announced Windows 10 support for the Raspberry Pi 2 (source)
This means the RPI2 will be my new tool of choice for most programming languages. It already supports  C, C++, Java, Scratch and Ruby. It might support J and VB too when Windows 10 comes.

Ubuntu Linux Kernel 3.19 installation guide

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This short walkthrough describes how to install the Ubuntu Linux Kernel 3.19 (server and desktop/client) without compiling.

This guide should work with the latest version of Ubuntu Linux and most Ubuntu-based distributions including Mint. The included kernel files have been compiled using the generic Ubuntu configuration. The general packages are available for 32 bits systems (I386+) and 64 bits (AMD64) and both as low latency.

Installation Guide (GUI)

  1. Download the kernel headers package:

    http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-vivid/linux-headers-3.19.0-031900_3.19.0-031900.201502091451_all.deb
  2. And the appropriate package for your system
  3. And the accompanying compiled kernel image
  4. Install the files in the same order as downloaded above. So first install the headers (2 files) and finally the image (1 file).
  5. In the terminal run:

    sudo update-grub
  6. Reboot and select the kernel from the bootloader menu

I will post the latest version of the 3.19 branch and 3.20 release candidates in comments below.

Excel convert date format dd.mm.yy to date

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If you want to convert a date in toe format dd.mm.yy to a supported date, make a cell containing:

=(MID(A1,4,2)&"/"&LEFT(A1,2)&"/"&RIGHT(A1,2))

Logitech G510 freeze

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Once in a while my Logitech G510 keyboard refuses to work. Even after a hard reset (by disconnecting the USB cable)
The solution is to reupload the firmware
The download can be found at http://www.logitech.com/pub/techsupport/keyboards/G510Updater.exe

Cleaning up your Microsoft Outlook Mailbox / Inbox

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It`s a good habit to clean up your computer once in a while. Programs you use on a daily base, like Microsoft Outlook tend to get fullier every day. A periodic Microsoft Outlook cleanup, for the inbox, directories aswel as agenda, task list and contact, brings back speed and harddisk space.

For this task I can recommend Automatic Outlook Duplicate Remover.

The steps are easy, but first make a backup of your Outlook PST file(s).
Next download and run Automatic Outlook Duplicate Remover.
I also recommend it to manually cleanup by following this Microsoft post: Reduce the size of Outlook Data Files (.pst and .ost)

The last step is compression, to squeeze out some extra harddisk space. I used KB289987 for this.