Oh the tension. 2-0 up at half-time. Visions of last-day drama and an eleventh-hour escape floating tantilisingly before my eyes. Then, grim reality. A second-half collapse and the prize is snatched away once more. So, this is what it must be like to be an Arsenal fan.
I know that they say misery loves company, but it’s not really any consolation. Yes, my beloved West Ham have been relegated from the Premiership.
In an effort to rouse myself from the resultant depression, I decided to have a look at addressing one of those minor annoyances that I’m always intending to get around to but somehow never quite do. In this case, it’s how to get confirmation that my Oracle XE database has started before trying to connect to it ( and that it’s shut down before I turn off my computer). Continue reading →
I am now the proud owner of an EMachines E350 netbook. Well, proud is probably overstating it. It’s about the same spec as most of the other netbooks out there and it was cheap.
This particular model boasts 1GB RAM, a 160GB HDD, and an Intel Atom N450 processor.
It also comes with Windows 7 Starter as the OS. Hmmm, not sure about that last bit.
My purpose in obtaining this machine is to replace the venerable Laptop I’ve been carting around on the train for the last several months. Like the Emachines, it also has 1GB RAM. Unlike the netbook, it’s running Ubuntu 10.04.2 LTS.
So, all I need to do now is to wipe away Windows and install Ubuntu. Oh, and make sure the wireless network card still works ( which has often been a problem with this kind of exercise).
So, what follows is the steps taken to install and configure Ubuntu on my netbook, with all the mistakes and associated cursing removed so I can pretend I really do know what I’m doing.
If you want to follow along, you will need :
a machine to experiment on ( or your new netbook)
a machine running Ubuntu already
a wired network connection
a USB stick with at least 2GB capacity
a bit of time (such as a Bank Holiday)
By the way, I’m going to ruin the suspense here and say that I’ve typed this on and posted it from the netbook in question, using OpenOffice Writer and a wireless connection. You can probably tell by the fact the typing is a bit slower and there are probably some amusing spelling mistakes. I put this down to getting used to the new keyboard.
A word of warning here – apart from the wireless card, I’m really not too bothered about the other peripherals on this machine. So, I’m not worried about the web cam, for example and have not covered this here. Continue reading →
SQLDeveloper 3.0 production has finally been released.
Like a kid on Christmas morning, I ripped off the wrapping paper and plunged straight into the installation on my Ubuntu laptop.
All was going according to plan…until I fired it up and found that it hadn’t imported my connections from SQLDeveloper 3.0 EA4 ( 188.8.131.52).
It seems that the production version has got a bit sniffy about it’s Early Adopter sibling although, oddly, it does still import any extensions you have installed.
Anyway, to save you the trouble of setting up all your connections again… Continue reading →
“This is the voice of the Mysterons…have you got any Lemsip ?”
Yep, I’ve caught Deb’s cold and now sound like the alien menace from Captain Scarlet.
This provides a somewhat tenuous link to the subject at hand – namely installing Oracle Instant Client on Ubuntu.
I think I’d better explain. As you probably know, Ubuntu – being a Debian based Distro – uses the Debian packaging mechanism. Oracle, on the other hand, provides Instant Client for Linux in rpm ( RPM Package Manager) format. In order to bridge this divide, we’re going to need to use the alien utility. Look, I did say it was tenuous OK.
I’m doing this on a 32-bit Ubuntu installation ( 10.04, since you ask). If you’re running 64-bit, you’ll need to download the appropriate equivalent files. Continue reading →
It’s Sunday afternoon and Deb is feeling poorly…but not so poorly that she’s not offering considerable editorial input into this post. In between the sniffles and requests for lemsip etc…she’s throwing in various comments relating to various icons from the sci-fi genre. To be fair, I have borrowed her laptop as it’s the only one in the house running Windows 7.
I will attempt to minimize the in-jokes and references but I thought I’d better go on record and report the fact that I am under some duress here. Honestly, some people are soooo geeky ! Continue reading →
Tantalus – that Greek bloke who was doomed for all eternity to eternal thirst and hunger despite having food and water within reach. Had he been a Geek, rather than a Greek, he would’ve worked in a place where you can choose which OS to use…but be denied by the fact that, as a database developer, he had to use PL/SQLDeveloper – a Windows only IDE.
Oh the bitter irony. Well, unlike Tantalus, I’ve decided that, as with so many other problems in life, this particular dilemma can be resolved by alcohol – in this case, a glass of Wine.
WINE – formerly WINdows Emulator, now re-christened Wine Is Not an Emulator. It’s open source so, on this occasion, we don’t have to beware Geeks bearing gifts ( sorry).
For this particular exercise, I’m using Ubuntu 10.04.
PL/SQLDeveloper is that “other” PL/SQL IDE – this one being published by Allround Automations. Continue reading →
My new year’s resolution that no alcohol will pass my lips is in no way connected to the fact that the only drink left in the house is half a bottle of cooking sherry that I’ve had for ages and really don’t like the look of right now.
As I’ve struggled through the hangover haze of a New Year’s Eve spent being corrupted by my better half, I’ve made a number of discoveries :
I now know why Belgian beer is only served in small glasses
the more you drink, the less it matters about the accuracy of your cocktail mixing skills
don’t try and install SQLDeveloper on Ubuntu if you’ve got a hangover
When I first mentioned the title of this post to my girlfriend, she misheard and thought there was an extra “t” at the end.
One hasty explanation later I have avoided banishment to the shed. All of which is mildly ironic as the tar command comes with a whole alphabet of options, many of which are about to get used here.
As it’s name suggests, the venerable tar command ( Tape ARchive) has it’s roots back in the time when computers were the size of a small semi in Dagenham and punch cards and tapes were the acme of the Programmer’s art.
Now I’m going to use it for backing up data on my assorted Ubuntu machines.
What I want to do here is :
work out how much data I need to backup
create a full backup of all of my data
make sure I know what files have been backed up
test the restore of a file from the backup
make subsequent incremental backups
In the course of this odyssey, we will discover that du has a human face and that tar has a bit of a yellow streak.
NOTE – it’s been several years since I posted this and it has been pointed out that I use the terms incremental and differential interchangably here. They are in fact, not the same thing (see Dude’s comment below).
What I’m describing here is an Incremental backup.
There are several things that can go horribly wrong when playing around with tar, so I’m going to test everything on a small subset of files…that I have safely stored elsewhere.
Speaking of which… Continue reading →