Hey, searching around the internet, i find some ways to decrease the boot time. All of them were for older versions, tham i decided to try it in new Ubuntu 9.04 (Jaunty Jackalope) and i get 22seconds boot time.<\/p>\n
I used the bum (sudo apt-get install bum) to remove some things that i don’t use.
\nThis thins are:
\nacpid – Controls energy\/buttons in pc\/Laptop. If you don’t use notebook or a keyboard with hotkeys you can remove it.
\nacpi-support – Like above.
\nhotkey-setup – Similar above.
\nanacron – This system runs processes periodically. You could remove it, and use cron.
\natd – Like cron, Task Scheduler.
\nbluetooth – Bluetooth support
\nusplash – Without this, you don’t see a beautifull loading screen when booting.
\ndns-clean – Used by dial-up connections.
\npppd-dns – Used by dial-up connections.
\nsaned – A lib for scanners. <\/p>\n
Remember, i removed this things, like bluetooth and acpid because i don’t use it. You shouldn’t remove it, if you use. You must choose what item to remove according to your system.<\/p>\n
Use:
\n$ sudo pico \/boot\/grub\/menu.lst
\nand remove splash.<\/p>\n
kernel \/boot\/vmlinuz-2.6.28-11-generic root=UUID=5be10a48-2c12-4165-8957-81c7a15274e5 ro quie splash
\nturned
\nkernel \/boot\/vmlinuz-2.6.28-11-generic root=UUID=5be10a48-2c12-4165-8957-81c7a15274e5 ro quie<\/p>\n
Reboot the system and executed the profiler. Press “e” in grub to edit, add to line that starts with “kernel” the word profile (add it in the end). Press “B” to boot. Wait a while, your boot is going to be slow. After this, reboot and see your boot time in bootchart. <\/p>\n
If you want you can use Concurrent boot. To use it you have to edit \/etc\/init.d\/rc
\n$sudo pico \/etc\/init.d\/rc <\/p>\n
And change
\nCONCURRENCY=none
\nto
\nCONCURRENCY=shell<\/p>\n
Save and restart. Verify your boot time and decide if you want to use it or not. (Probabily if you don’t change boot order in rcX.d, You will not see difference.)<\/p>\n
Usei o sudo bum (apt-get install bum) para remover algumas coisas que eu n\u00c3\u00a3o usava.
\nAs coisas removidas foram as seguintes:
\nacpid – Serve para gerenciar a energia\/controles do pc\/laptop. Se voc\u00c3\u00aa n\u00c3\u00a3o usa um notebook ou teclado com teclas te atalho pode remover.
\nacpi-support – Para notebooks. Como o de cima.
\nhotkey-setup – Semelhante ao anterior.
\nanacron – Este sistema roda processos periodicamente. Voc\u00c3\u00aa pode remove-lo e colocar servi\u00c3\u00a7os criticos para cron
\natd – Como o cron, esse tamb\u00c3\u00a9m \u00c3\u00a9 um agendador de tarefas.
\nbluetooth – Suporte a Bluetooth
\nusplash – Remove a tela bonitinha de loading, aparecendo um monte de mensagens na tela. (remover splash da grub tbm. Abaixo)
\ndns-clean – Utilizado para conex\u00c3\u00b5es dial-up.
\npppd-dns – Utilizado para conex\u00c3\u00b5es dial-up.
\nsaned – Biblioteca para scanners.<\/p>\n
Lembrando que removi pois n\u00c3\u00a3o utilizava certos dispositivos, como bluetooth, agendador de tarefas e notebook. Voce deve ver se remove ou n\u00c3\u00a3o de acordo com seu sistema.<\/p>\n
For now just this, but when i have time I want to rebuild my kernel and see the diferences. Stay calm, i will keep you informed. <\/p>\n
Matheus Bratfisch<\/p>\n
References: Hey, searching around the internet, i find some ways to decrease the boot time. All of them were for older versions, tham i decided to…<\/p>\n
\nhttp:\/\/www.extremetech.com\/article2\/0,2845,2114124,00.asp<\/a>
\nhttp:\/\/wiki.ubuntu-br.org\/AcelerandoBoot#head-c8957311083b70f08301d9339d1dea3c54c1c9ae<\/a>
\nhttp:\/\/caarlos0.wordpress.com\/2009\/02\/09\/boot-do-ubuntu-intrepid-em-20-segundos-d\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"