Re: [gentoo-embedded] how to boot real fast?

[Hanni Ali]

http://gentoo-wiki.com/HOWTO_build_a_LiveCD_from_scratch#Optimizing_the_booting_process

this link has a few tips on speeding up boot time it shaves a few seconds

Hanni

On 13/10/05, Natanael Copa <mlists@××××××.org> wrote:
> On ons, 2005-10-12 at 19:08 -0300, Francisco J. A. Ares wrote:
> > Hi, All
> >
> > I'm about to launch an embeded product runing Gentoo Linux. Everything
> > is working perfectly now, but I really would like to have a faster boot.
>
> Take a look at initng. It is really fast (if you compare to standard
> gentoo bootscripts).
>
> If that is not fast enough - take a look at software suspend.
>
> > As this computer will not have upgrades, at least not as usual as a
> > common desktop, I think that the cold/hotplug could be replaced by
> > something else, although I plan to use an external USB disk on maintenance.
>
> I was thinking of something similar some time ago. The idea was that if
> there is no /etc/modules run coldplug and list all loaded modules
> into /etc/modules, otherwise skip coldplug and just load the modules
> listed in /etc/modules. That would not detect if you have plugged a new
> USB device when powered off though.
>
> If you think that hotplugging is to slow (that there is a delay after
> you have plugged the external device until the device shows up) there is
> a hotplug-ng that is written in C instead of bash (like the standard
> hotplug system is). It is supposed to be faster.
>
> I think I posted an ebuild at bugzilla some time ago.
>
> > Another little detail:  I have already seen that the Knoppix CD starts
> > with a lo-res bitmap while starting its services and probably detecting
> > the hardware and then it changes to a full-res version of the same image
> > when it is starting KDE.  How can I do that?  I have almost done that
> > with the frame buffer bootup image and just after starting X the first
> > task is to change the background image to a copy of that used on the
> > boot sequence, but still there is a gap where one can see the X'
> > checkered background.
> >
> > Any sugestions?
>
> You can try setting another background bitmap and background color in
> some resource file. The screen would be black or something while waiting
> for the backround image to show up.
>
> > Thanks a lot
> > Francisco
>
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> gentoo-embedded@g.o mailing list
>
>


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E-mail: hanni.ali@×××××.com
Mobile: [phone]
Website: www.ainkaboot.co.uk

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