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So I have a laptop that I've been upgrading since Hardy (currently on Karmic Alpha) that I would like to boot faster. It has probably accumulated a lot of crufty daemons along the way that probably aren't being pre-loaded into memory. I picked up this tidbit from the fast boot expert. Add profile to your kernel command-line (at the grub prompt, press Esc e and then edit the line).
I installed Ubuntu 10.04 Lucid from a daily build yet couldn't boot into my fresh new desktop because I needed to add nomodeset to the grub2 boot line and didn't know how to do that because there was no boot screen visible.
This specification details the foundation team plans for the technology for the Lucid Lynx boot experience, changing from using usplash to plymouth to provide the graphical splash screen while waiting for the boot to complete. The "look" and "theme" components are not covered here.
Canonical expressed their plans to achieve a ten-second boot time in June of last year for Ubuntu 10.04 LTS, with their reference system being a Dell Mini 9 netbook. In February, we last checked on Ubuntu's boot performance and found it close, but not quite there yet, but did they end up hitting this goal for the final release of the Lucid Lynx?
Bootchart is an extremely simple, extremely handsome application that allows you to profile your Linux boot process, to measure the loading times of different services, to compare kernels and distributions, to identify bottlenecks and improve the performance of your system, and then to display the results in a professional-looking chart.
Improving boot time has been a focus of Ubuntu developers in recent releases, with the goal of a ten-second startup set for Ubuntu 10.4. To test progress thus far, I compared boot performance for Ubuntu 8.04, 9.04 and 9.10. Below are the results, which demonstrate the impressive strides that have been made thus far towards a faster boot.
Canonical is developing a 2D ARM interface based on Enlightenment Foundation Libraries for the upcoming Ubuntu 10.04 ("Lucid Lynx") version of Ubuntu Netbook Remix. In other Ubuntu news, Ubuntu Live CDs in Lucid Lynx will boot 33 percent faster, and The Linux Box will market Ubuntu.
Compare to earlier ubuntu versions karmic is much better in speed but if you still want to reduce your boot times use ubuntu boot Packages containing instrumentation to aid in boot performance work, and packages proposed to improve performance.