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[News] Booting of Linux Now in Pictures

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Linux boot sequence visualized


The Linux Boot Sequence, Visualised

,----[ Quote ]
| Most of us don't appreciate all the processes involved with our OS's boot 
| sequence; we're far more interested in watching that status bar fill. In this 
| visualization of the Linux boot sequence, each function is a node, and each 
| line connecting the nodes represents a call, direct branch, or indirect 
| branch.    



Booting Debian in 14 seconds

,----[ Quote ]
| Many readers will have heard about Arjan van de Ven and Auke Kok's work to
| boot an ASUS Eee 901 in 5 seconds. Inspired by this work, and because I have
| the same laptop, I decided to try to reproduce their results. So far I have
| not come very close to their 5 seconds, but I have made some significant
| improvements compared to the default boot time for Debian on that machine;
| this article describes what I've done.


Linux boots in 2.97 seconds

,----[ Quote ]
| Japanese embedded Linux house Lineo has announced a quick-start technology
| that it claims can boot Linux in 2.97 seconds on a low-powered system. The
| technology appears similar to but much faster than Linux's
| existing "suspend-to-disk" capability.


My Bootchart Record: 12 Seconds to Boot, 7 Seconds to X

,----[ Quote ]
| I may have to write how I did this at some point. I use Archlinux x86_64,
| with a custom kernel from Zen. It's got most of the stuff I need built in,
| and all other crap is thrown out. I further have added concurrency in rc.conf
| using @ before all but a couple of my daemons, and am using ReiserFS, with
| noatime notail nodiratime. I have further speed things along by editing
| rc.sysinit, and removed hundreds of lines of unneeded crap as well. One trick
| I found was that it is actually faster to mount an NTFS partition I have via
| rc.local, rather than fstab. That said, I can't think of anything else to
| make this faster!


Reboot like a racecar with kexec

,----[ Quote ]
| Kexec was originally intended for use by kernel and system developers who had
| to reboot several times a day. Soon, system administrators for
| high-availability servers found use for it as well. As systems get more and
| more advanced, and boot times get longer, end users can now benefit from it.



Startup times

,----[ Quote ]
| PCLinuxOS 2007 (on my home laptop, a middle-of-the-road machine): 40 seconds
| Mandriva 2008: 40 seconds
| Xubuntu 7.10: 45 seconds
| openSUSE 10.3 (clean install, OSS/KDE): about 45 seconds
| Fedora 8: about 50 seconds (a huge improvement over the last few versions :-)
| Windows Vista: 3 minutes 45 seconds
| ...What?


Ubuntu vs. That Other OS

,----[ Quote ]
| Both machines have the same exact specs, both have been used for the same
| time (to be fair I have tweaked the OS on the left quite a bit to optimize
| it). Ubuntu is already idle by the time the video ends; while the other PC
| takes 30 seconds more than what I’ve uploaded to idle the hard drive.  


Quick booting SBC runs Debian Linux

,----[ Quote ]
| Technologic Systems has announced a single-board computer (SBC) claimed to
| boot Linux 2.6 in under two seconds.  


Mach Boot: The live CD that supposedly boots in 10 seconds

,----[ Quote ]
| Mach Boot won't replace Knoppix, and it won't replace Puppy, DSL or NimbleX
| either. But it's a tool all its own, one that could be very useful with a
| little more development time.  


Tiny WiFi-enabled Linux box boots in 1.1 seconds

,----[ Quote ]
| Technologic continues to reduce the boot time, price, and size of
| its embedded boards and systems targeting remote sensing and other
| power-critical applications. Its new $100 ARM9-based TS-7400 board can
| boot Linux in 1.1 seconds, and is available as part of a tiny
| WiFi-enabled system.


Flexible ARM9 SBC boots Linux in 1.69 seconds

,----[ Quote ]
| Technologic Systems is offering a freely downloadable, Debian-based Linux
| OS image said to boot from an SD card in less than two seconds, on the
| company's ARM9-based SBC (single-board computer).


Phoenix HyperSpace: Quick-Boot Your Laptop

,----[ Quote ]
| Phoenix Technologies' new HyperSpace is an instant-on environment for
| laptops, letting users launch a browser or other apps with booting into the
| OS.  
| Today, Phoenix Technologies introduced a firmware product called HyperSpace,
| which allows PCs to run a number of applications separate from the operating
| system. What that means is that if you use a PC equipped with HyperSpace, you
| will be able to quick-boot your notebook into a secure Linux environment,
| where you can use Web browsers like FireFox and pre-loaded Web-aware apps
| like Google Earth, Picasa, and the like.    
| [...]
| Also, since HyperSpace is a Linux-based platform, Windows viruses won't
| affect it.

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