flapjacktastic

Disk info utilities

Date: 28 Jul, 2011
Posted by: admin
In: hints & tips|linux, open source & software

Some information about finding disk health and partition information on Linux systems, particularly Kubuntu/Ubuntu.

How’s my disk doing?

SMART disk info

The tool known in Ubuntu as “disk utility”, from the package gnome-disk-utility with command palimpsest, is the best GUI based summary of disk health and partition info I’ve found. Currently I’m using KDE 4.6 on Kubuntu 11.04 FWIW.

Here’s a couple of example images:
Using the Gnome disk utility
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Some JavaScript resources, in particular JavaScript videos and interactive coding tutorials. Also listing the most popular books and online references as reported by developers.

Learning JavaScript

Interactive code writing lessons

  • Eloquent JavaScript, an online resource for which there is also a printed book (UK book link).
  • Learning Advanced Javascript from John Resig, part of the book “Secrets of the JavaScript Ninja” [pre-order].
    Goal: To be able to understand this function: The .bind method from Prototype.js
  • Nathan’s JS Lessons from Nathan Whitehead an NVIDIA developer. A really well set out interactive approach of learning by doing.
    Ever wonder what closures are and how they work? You can learn about this advanced programming concept right now through interactive lessons in JavaScript.

Other books

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Finding bookmarked and visited pages quickly in Firefox.

Location Bar search

Search modifiers

I’ve been using the web since 1994 (Mosaic, Lynx, etc., yay!) so it takes quite a bit to change my usage. The Awesome Bar was, well, awesome when it came out but I’ve always found the bookmark finding mechanism a bit unwieldy.

So, when I found that there were search modifiers a week or so ago I was happy and have found that over the last week or so it has helped me a lot, streamlining the process to finding bookmarked or previously visited pages (ones in my history).

Most used bookmark search modifiers

This MozillaZine page gives the full run down but my usage has so far been limited to these modifiers:
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Short note on adding the Kdenlive official release repository in order to get a more up to date Kdenlive in Ubuntu/Xubuntu/Kubuntu/Edubuntu.

Install latest Kdenlive

Add the release repository

If you’re looking for a repos for the latest Kdenlive, non-linear video editor, for Ubuntu (or variants like Kubunut, Xubuntu, etc.) then you can use their official ppa. Open a console (command line; eg Konsole, xterm, gnome-console) and type this:

sudo apt-add-repository ppa:sunab/kdenlive-release

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VirtualBox USB error

Date: 10 May, 2011
Posted by: admin
In: hints & tips|linux, open source & software

VirtualBox USB permission problem

On attempting to change USB settings for a virtual machine I got the following error in a popup dialog:

Result Code: NS_ERROR_FAILURE (0×00004005)
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VirtualBox issues [solved], along with minor halevt error [solved], whilst updating from Kubuntu 10.10 Maverick to 11.04 Natty. Note that I write these things as I work through the problem and so you may be best jumping to the end if you’re just after the solution.

Updating Ubuntu from Maverick to Natty

Something always breaks …

I’ve just moved from Ubuntu Maverick (well Kubuntu actually, version 10.10) to Ubuntu Natty (11.04). Waited a while to be sure that there weren’t going to be any major problems (as has been the case in the past) and things seemed to go smoothly.

So far there have only been two things causing problems.

Changes to hal easily fixed

One was that halevt wouldn’t work. But that was easy, just removed it, it seems that the functionality (hotplug hal actions) has been moved into the main hal package.

Changes to VirtualBox not easy to fix

Two is that VirtualBox isn’t working, the module can’t be loaded. Hmm …

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Flapjacktastic is just a random collection of musings, hints&tips, notes, information ... a collection of stuff really that's overflowed from the brain of this husband, father, potter, business-man, geek ...

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