Coreboot at Your Service!
Listing 7. Configuration for Bayou Payload
<BayouConfig> <global> <timeout>5</timeout> </global> <payloads> <payload type="chooser" flags="default"> <file>payloads/filo.elf</file> </payload> <payload type="chooser"> <file>payloads/coreinfo.elf</file> </payload> <payload type="chooser" flags="default"> <file>payloads/tint.elf</file> </payload> </payloads> </BayouConfig>
The config file is fairly straightforward. The default payload starts after five seconds, and if nothing is chosen, the default is FILO. The other options are tint or coreinfo (Figure 4 shows it running in QEMU).
Next, make a directory for the payloads, put them into it, and then run make:
$ ls -l payloads -rwxr-xr-x 1 ab users 47004 2009-01-03 11:59 coreinfo.elf -rwxr-xr-x 1 ab users 71440 2009-01-09 21:35 filo.elf -rwxr-xr-x 1 ab users 49298 2009-01-10 09:40 tint.elf -rwxr-xr-x 1 ab users 74334 2009-01-10 19:22 seabios.elf $ make
Now, run image in QEMU, and you can play Tetris from the BIOS (Figure 5).
Coreboot allows you to replace your motherboard's proprietary BIOS with a free and open-source BIOS. Coreboot already can boot Windows XP and Windows Vista as well as FreeBSD, Plan9 and, of course, Linux. Operating systems can be started from local disks, from a network connection or even from a serial port. Although it's not yet feature-complete, coreboot provides a base for building more flexible BIOSes.
Anton Borisov lives and works in Russia. Always fond of low-level programming, he has devoted his PhD work to the economic analysis of the advantages and ROI of custom-made firmware.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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- Rogue Wave Software's Zend Server
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide