Tag Archives: Ubuntu

Upgrade from Ubuntu 13.04 to Ubuntu 14.04 LTS in 5 steps

When we got back from house sitting this winter and back into my regular house, I finally got around to installing a newer version of Lubuntu Linux on my desktop at home, I wanted to get away from using Windows XP and didn’t feel like installing a new version of Windows. The original Wildcat video card on the PC didn’t support Linux well, so I installed an old GeForce card I had sitting in a box from a carcass machine. It was a moment where I said, why didn’t I think of this years ago! I first installed Linux 5 years ago on it, saw that the video didn’t work quite right and didn’t really dig any deeper than trying a lot of settings changes, the gave up and lived with it. I used XP heavily on it and I have to admit I was pretty OK with the way XP was working on it, so it was a case of leave it alone if it is OK.

I actually left the other video card ( an expensive Wildcat card, large unit fits the full footprint for the bay. It cost $2K for the company that bought it for CAD/CAM usage originally) in place. I found a setting in the BIOS for Legacy detection of video, it was set to AGP, I switched it to auto, seems to work!

But, now I have it pretty much set up and working good. The machine has 2 identical hard-drives that have copies of the same stuff and 2 copies of Win XP, one on each drive. Plus I back it up to an external server, when I remember to, its been too long already! I can start it in Linux (Lubuntu 14.04 LTS or Ubuntu Server 12.04, for testing) or one of the 2 XP’s, but I am pretty much going to keep using Lubuntu Linux on it, faster than XP was and doesn’t crash, it just works better in general.

Tutorial Page

The tutorial page below  worked well. I had the Lubuntu 13.04 CD for Lubuntu from trying it out on one of my old servers a few years back. I used it to install on my desktop because the unit  doesn’t have a DVD player and Lubuntu 14.04 LTS is just a tad oversized for a CD. When the install was going on I just selected the root directory to go in the same place (on sdb5 in my case) as the old 9.10 Ubuntu install. At this question it was choose OTHER and not side by side or wipe drive for me.

Then I used the steps in the tutorial to migrate from Lubuntu 13.04 to Lubuntu 14.04 LTS. (I did try Lubuntu 15.04 which fits on a CD, but it did not run, checked the disc and MD5 sum too, but it just might not be compatible with the machine). The only things I did above and beyond the tutorial was to run..

sudo apt-get update && sudo apt-get upgrade

…before and after installing Lubuntu 14.04 LTS. And after the final update and upgrade I ran…

sudo apt-get autoremove

…to remove pieces of Lubuntu 13.04 that were not needed with Lubuntu 14.04 LTS.

http://www.tuxtrix.com/2014/03/upgrade-from-ubuntu-1304-to-ubuntu-1404.html

Fermented Figs Timelapse

Nothing beats combining two things that are interesting together. I’ve been into fermenting foods and beverages since the late 1990’s and have been experimenting with timelapse photography since late in 2013 ( One of the first projects I set up and Ubuntu Server for ). Combining them together has been an interesting experience lately.

Recently I bought a 50.5 Ounce glass container with a gasketed lid. I got the idea from reading The Art of Fermentation by Sandor Ellix Katz, a must have if you are considering getting serious about fermentation, it covers a lot of territory on the fermentation landscape. This jar is ideal for some fermentation experiments as any pressure built up in the container would vent via the gasketed lid.  A lot of times, I don’t worry about pressure build up, because I am close to home and can vent it manually. But this time I was going to be away so this jar would be good to use. I decided to try to ferment some figs in it and create a time lapse video by taking photos every 4 minutes. I ran it for a week, almost 2400 frames.

The Ferment Mixture

The figs were a bit on the hard side so they were not getting used up to much and I decided that they would be good candidates for a fermentation experiment. The fermentation was started by cutting up the figs into small bits and added some sugar water and a pinch of bread yeast. Normally I would have let them ferment naturally based on what wild yeasts are present on the fruit, but I wanted a vigorous fermentation that got going quickly in order to capture the action for the timelapse video.

Timelapse Video Setup

The setup for the timelapse video was a laptop running Ubuntu with Apache and a webcam. The program used to take the frames for the timelapse video is fswebcam ( which I cover in the post on Bread Dough Rising Timelapse GIF ). The frames were taken every four minutes and saved into a folder underneath my home directory. Additionally a frame was copied to the /var/www directory to allow it to be seen on the web. Plus, I have a symbolic link from /var/www to a directory called fswebcam under my home directory. This directory holds the scripts to run fswebcam, under this is a directory called timelapse which collects all of the frames. This allows me to flip through these from the web as well, so I can keep track of the fermentation progress.

I went away for a few days while I was running the timelapse frame capture and it was nice to be able to view it to check on the progress. To get it online, I basically added a virtual server on the router for port 80, pointing to the internal IP address of the laptop, which was hooked to the router via WiFi. This worked flawless and I was able to periodically check in on the fermentation while on the road.

Fig Fermentation Timelapse Photography Setup
Fig Fermentation Timelapse Photography Setup

 

Timelapse Video AVI

Fermenting Figs 1 frame every 4 minutes for 31s of video