The linux kernel is, among other things, something that gets updated periodically when you update your system. When this happens, the kernel that’s being replaced is not deleted, it’s left on your system, but just not used anymore. For example, as I write this, I’m using the 2.6.24-24 kernel. My system may still contain older versions, like 2.6.24-23, or 2.6.24-19, etc. I no longer need these older versions, and they are taking up space on my hard drive. Removing these older versions will free up some hard drive space. The first thing you need to do is find out which kernel you’re currently using, so that you don’t delete it.
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Computerbank Victoria of West Melbourne, Australia, is a not for profit organization staffed by volunteers, who strive to bring computers to those in need. They’re using Ubuntu 9.04 on the machines they handle. Here is what they do…
They offer these machines at a very low price to the individuals and groups mentioned above, including students. All of the systems include a monitor, keyboard, and mouse. It makes me feel good to see Ubuntu benefiting people who might not otherwise be able to own a computer. What better way to get introduced to desktop computing than with Ubuntu?!? By using Ubuntu, each one of us is contributing to the good that it does. Ubuntu 10.04, codenamed Lucid Lynx, will be available in April of 2010. This will be the 12th Ubuntu release to date, and they’ve got some lofty goals for it. The developers are striving for a lean and fast creature with this next LTS release. Some of what they’re aiming for…
Of course, like all Long Term Support releases, Lucid Lynx will be supported for 3 years on the desktop, and 5 years on the server platform. If, like me, you need a stable operating system that you can keep using for an extended period of time, then the Lucid Lynx is your next upgrade. And probably the last one you’ll do until April of 2012, that is, if the current release cycle continues as planned. I’ll definitely be staying tuned to see what’s going on with 10.04 LTS. I’ve been using 8.04 since it was released in ‘08, and I’m looking forward to what they’ve got in store for us with the next LTS. Have you been waiting for the next Long Term Support release to upgrade? Well, here’s the new site, I hope you like it. This new arrangement will give me more freedom with the site and it’s content. New PostsI’ve been taking a break from posting any new material for a while now. However, new posts will be following this move to the new site, so stay tuned! Some of the subjects I’ll cover…
Let’s say you’re logged into your Ubuntu machine as an unprivileged user, meaning that you don’t have permission to use the sudo command on the command line. As such, you cannot update the system, install a program, or perform other tasks in the terminal that require the sudo command without logging out and then back in as the administrative user, or using the User Switcher. This annoys me. So, how do I execute commands in the terminal that require the sudo command while still logged in as the unprivileged user?? First off, you’ll need ssh. To make sure you have this installed, login to your administrative account (a step that will soon become unnecessary), open a terminal, and enter…
After this install is finished you can logout, and back in as the unprivileged user.Now you can open a terminal and enter…
You’ll be asked for your password, this is the administrative account’s password, enter it and press enter. Now, you’ll have a command line prompt for the administrative user, as if you had logged in as that user and opened a terminal. You can now update the system, or make whatever change you need to make that requires you to enter your sudo password. A nice time saving trick. Have you ever asked yourself, “How do I find out exactly which version, or release, of Ubunut I have?” There are a few ways of doing this. The easiest, and most basic, is to open the System Monitor.You do this by going to System > Administration > System Monitor. You then click on the System tab. There you’ll see which version of Ubuntu you’re using, along with your linux kernel, and which version of gnome you have. However, this information can be incomplete. For example, if I do this, I’m told that I have Ubuntu 8.04. Well, I do, but there’s more to it than that. See, Ubuntu has what’s called point releases for the long term support versions of Ubuntu, which 8.04 is. Check their website here, for an explanation. So, knowing that I have Ubuntu 8.04 does not tell me which point release I have. What can I do if I want that information?? Well, that’s pretty easy too. I have to open up a terminal. To do that I go into the Accessories menu, and choose Terminal. Then I enter this…
And when I do that, I’m told that I have Ubuntu 8.04.3 LTS. This let’s me know that I am using the third point release. This is what I wanted to find out. Any other ways of doing this that you prefer??? You’ve heard of Microsoft’s new operating system, Windows 7. Mark Shuttleworth, founder of Ubuntu, shared his thoughts on the new version of Windows with the UK’s Register. Here’s an excerpt…
Read the whole story here. A new version of Ubuntu is released every 6 months, and it’s very easy to upgrade. All you have to do is click a button or two in your update manager and there you have it. You’ve just gone from Ubuntu 8.04 to Ubuntu 8.10! Is this something that you should be doing?? You could upgrade every six months, or you could upgrade every 2 years. Which would you prefer?? I’ve chosen to upgrade every 2 years. Here’s why… This could be very useful to you if you’re working in the terminal and need to step away for a moment. You can achieve a locked screen, just like when you do it the graphical way, with this command entered at the command line, or cli… That command is pretty long, and typing it out would probably get on my nerves. You can use an alias to effectively shorten it. Here’s how we’ll do that, also at the command line… Let’s say we want to be able to type in lock, to lock the screen. If I just type in lock, I get nothing. So I need to create an alias for this command. An alias is just like what it sounds like. It’s assigning another name to a certain command. At the command line enter… In Ubuntu you can have the appointments in your calender appear in your desktop calender/clock. If you’ve just come over from years of Microsoft Windows use, Evolution is the linux equivalent of Outlook. Ubuntu works with the Evolution mail client to give you quick access to your appointments and tasks right on the desktop, without having to open your email program. Here’s how it works… |
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