Results tagged “linux” from Ye Olde Rad Blog III

I'm reluctant to republish the content of others (as so many sites already do), but .. I found it interesting & noteworthy that » Microsoft has acknowledged Linux as a threat .. especially since I spent so many hours in Linux these past few weeks (learning the Unix shell)

Copy-n-paste snippet (minor Rad-editing for brevity):

"Microsoft acknowledges Linux as the first viable competitor to its Windows client business, due to the use of Linux on netbooks, which are rising in prominence as an alternative to full-sized notebooks.

Microsoft cited Red Hat and Canonical -- the latter of which maintains the Ubuntu Linux distribution -- as competitors to its client business, which includes the desktop version of its Windows OS." </snippet>

Notice how the article said » DESKTOP, and not server. Linux has long been a dominant force in the server market (.. if not the dominant force).

It's difficult to describe why Linux is so cool .. why using it feels so fresh & clean. But I think it has something to do with the good intentions .. that come from thousands of talented programmers donating their time & expertise .. to bring you (for free) an operating system they obviously believe in.

I might be imagining it, but I think you can actually feel these good intentions (while using Linux). Can you feel the difference (in intentions) between someone who genuinely loves you, and someone who is paid to love you?

Moreover, I feel our economy has a lot to do with the Linux threat to the Microsoft desktop. No matter how compelling the product, basic economics suggest it's hard to compete with free. (Which Windows is not.) And in these troubled economic times, free means more than it used to.

Last month I mentioned a quest to learn the Unix shell .. specifically » bash (the Bourne Again SHell). Almost done. Currently ~80% complete .. enough to feel reasonably confident at a terminal.

The 'shell' is simply a program that lets you interact with the operating system (actually the kernel, to be more precise) ..

.. by taking your (text-based) commands and passing them on to the kernel. In my case, this kernel happens to be » Linux (which is but one variant of Unix).

The term 'shell' comes from the notion that this software acts like a 'layer' that sits between you and the operating system .. similar to the way an egg-shell sits between you and your hard-boiled breakfast.

The shell can be intimidating, cuz it uses a (text-based) command-line interface (CLI). No intuitive GUI to help you along. You either know the commands or you don't.

Didn't take me long to realize the CLI was where Linux's true power resides. When we upgraded the site, for example, to a Virtual Private Server, the support-techs who helped me with the move all used the command-line to work their mojo.

Most Linux distros do indeed come with an excellent GUI (usually either KDE or Gnome). But (but!) the Rad VPS does not. Which is why it became necessary to learn the Unix shell. (Something I tried to avoid.)

The Rad VPS is based on CentOS (Community ENTerprise Operating System), an off-shoot of Red Hat, which is probably the most popular of all enterprise Linux distros (.. and now a new member of the S&P 500, a development you may find telling).

GUIs (such as KDE or Gnome) require lots of memory/RAM. My laptop, for example, has 2-gigs, but the Rad VPS comes with an allotment of only 512-MB (.. upgraded from 384 just today).

With that limited amount, I need to run not only all the standard web applications .. such as Apache (web server), MySQL (database), Perl (scripting language), etc. but also cPanel/WHM.

So there's not much RAM left to run a GUI. [ Don't think I didn't inquire about installing a GUI. =) ]

Bottom line » if you wanna administer your own VPS, you need to learn the Shell. So that's what I'm doing. (Of course, there have been distractions, making progress uneven.)

When I finish using my laptop each night, I gently close the lid and shut my eyes. When I wake each morning, I lift the lid, press the power button, and return to where I was working. (Been doing this for years.)

This morning however, the laptop wouldn't start. The BIOS loaded fine, and transferred the start-up sequence to GRUB (GRand Unified Bootloader).

But GRUB failed to offer a boot option, and instead kicked me back (automatically) to the BIOS .. in an endless (tho very short) loop. Sukage maximus.

Not much you can do when the boot loader fails to offer an option. I tried powering-off the laptop & powering it back on. Still no dice. "This ain't good," I muttered, wiping the sleep from my eyes.

Last summer, I installed a copy of Linux » Ubuntu 8.04, Hardy Heron (.. to a separate 20-gig partition, formatted as EXT3).

As part of the installation, Ubuntu automatically installs a copy of the GRUB boot loader, which has worked flawlessly .. (uh, until today, that is).

My hard drive is pretty new, so I didn't think it was a problem with the drive itself failing. So maybe GRUB somehow got corrupted, I thought .. tho I did nothing that should've affected it. I mean, GRUB sits in the Master Boot Record (MBR), and I have no reason to go there.

To make matters worse, I haven't backed up in waay too long. Just yesterday, the thought passed thru my head » "You need to back up your system drive soon."

I'm not even gonna say how long it's been .. cuz I'm kinda embarrassed .. especially since Radified is very much about backing up your hard drive (with industrial strength Cloning tools).