Yellow Dog Linux on the iMac
I don't have a printer hard-wired to the Macintosh. Since I have so many machines, I've opted to move my printers to a print server that hangs on the network. The printtool setup gives options for setting up the printers, and an option is included for a remote host. I have two printers, an NEC Silentwriter95 (PostScript) and an HP DeskJet 693C. PostScript and ACSII printing worked fine on both.
YDL comes with the standard set of Linux applications. For the office worker or student, you have Abiword and Gnumeric for your word processor/spreadsheet combination. Not as full-featured as some of the commercial applications, but certainly capable of creating and printing a basic document. I did get an error related to gnome-print when running Gnumeric, but after re-installing the gnome-print RPM, the problem went away. Both applications printed fine. The GIMP is included for manipulating graphics files, as well as Electric Eyes. A number of games are also included. One I found particularly entertaining is Xboing, a spin on the old “Breakout” game with some slick effects and sound (unfortunately, the sound was a bit distorted on the iMac).
MOL stands for Mac-On-Linux and it is a wonderful contribution to PPC Linux, authored by Samuel Rydh. It can be run as a window in X or in console mode using fbdev (the frame buffer), and it allows you to use your existing Mac OS partition and applications from within Linux. Sound doesn't work, but you can set up a networking interface to access files and the Internet from MOL. I've used MOL before on my CS1.1 installation, and it worked quite well. For whatever reason, MOL on CS1.2 starts up but never finishes the boot process. I get a number of messages referring to an unsupported resource in the console from which it is launched. Thinking it may be an issue with the 2.2.14 kernel I'm using, I uninstalled the stock MOL and grabbed my copy from the other partition. It also failed, but with a different error. Looks like this one needs a little work. Again, it's most likely due to my being unable to use YDL's kernel (see Figure 9).
YUP stands for Yellow Dog Update Tool. It takes the RPM concept to the next level, querying an external network of databases to download and upgrade your software packages on demand, including itself, when necessary. From what I read on the mailing lists, there were some initial problems with YUP and it went through several rapid revisions, but in concept, it sounds like a neat tool. If you run yup update, it will go out and find the newest versions of your software on the Internet and update things for you. I prefer to control when and what I update, but for inexperienced users, this could be a nice option.
Linux, and in particular Linux on PPC, has come a long way. Yellow Dog Linux Champion Server 1.2 is a very good package. I did hit a couple of rough spots that may have stumped a first-time user, but fortunately, I have the experience to work around them. Were it not for my non-standard SCSI card in the iMac, things may have gone much smoother. In the end I had a very usable Linux system, not unlike what I use on x86 boxes (see Figure 10). I have used LinuxPPC and had even more problems with it before I went to Yellow Dog; however, that may have changed with LinuxPPC's newest release. Many resources are available on the Net, including mailing lists from both distributions as well as the mailing list/web site that I help maintain: http://www.imaclinux.net/. If you've got a Mac and would like to give Linux a try, now is the time. With MOL, you can now have the best of both worlds! If you do decide to give Linux on PPC a try and get stuck, I'd be happy to help where I can; drop me a line.
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Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi
It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
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Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
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