Raspbain - fast boot into Webbrowser

[Reini1000]

Hello,
How can i boot my Raspberry Pi 3 the fastest way into a Webbrowser ?

I'm using as OS Raspian Jessie. At the moment i'm booting to the text console and a littel script is autostarting the Kweb-Browser.

But how can I speed up the boot process? Is there a possibility to disable loading of drivers which i don't need ( e.g. Bluetooth) and stripping down Raspbian Jessie.
I was trying to build a new kernel but it is to complicated for me. I think a stripped Version of Raspian Jessie would do it, but i could find the right stripped version, e.g. miniban is not suitable for my case.

Thanks in advance !

[B.Goode]

Raspbian Jessie Lite and DietPi are two 'start small and add what you need' alternatives that you might want to investigate.

[Reini1000]

Raspbian Jessie Lite and DietPi are two 'start small and add what you need' alternatives that you might want to investigate.

Thanks, i will try Diet Pi and inform about the results. Maybe it's usefull for someone else.

[Reini1000]

I have tried Diet Pi, but my main purpose is to boot very quick into a Webrowser, but with Diet Pi my boot time isn't much fast than the normal Raspbian Jessie.
More Ideas ?

[kusti8]

I have tried Diet Pi, but my main purpose is to boot very quick into a Webrowser, but with Diet Pi my boot time isn't much fast than the normal Raspbian Jessie.
More Ideas ?

If you want fast try Tiny Core. But support for software is limited.

[Reini1000]

I have tried Diet Pi, but my main purpose is to boot very quick into a Webrowser, but with Diet Pi my boot time isn't much fast than the normal Raspbian Jessie.
More Ideas ?

If you want fast try Tiny Core. But support for software is limited.

Tiny Core is fast your right. Buts its to tiny for me.

Is there a possiblity to speed up the OS Jessie? (e.g. putting drivers which i don't need on blacklist ?)

[fruitoftheloom]

I have tried Diet Pi, but my main purpose is to boot very quick into a Webrowser, but with Diet Pi my boot time isn't much fast than the normal Raspbian Jessie.
More Ideas ?

If you want fast try Tiny Core. But support for software is limited.

Tiny Core is fast your right. Buts its to tiny for me.

Is there a possiblity to speed up the OS Jessie? (e.g. putting drivers which i don't need on blacklist ?)

https://webconverger.org/rpi2

[Reini1000]

https://webconverger.org/rpi2

Thanks but that doesn't fit for me.

Other ideas ? How can i speed up OS Jessie by myself, so i can configure it according to my needs ?

[B.Goode]

Maybe you should leave the system running 3600*24*7 to avoid the delay at startup?

[Reini1000]

Maybe you should leave the system running 3600*24*7 to avoid the delay at startup?

Yeah you are right thats one possiblity, but i some cases its necessary to restart.
The main Problem is: when my sytem is rebooting, on the screen occurs some boot messages (the auto login to text console process) although i disabled the non-critical bootmessages and the pi-Logo. The bigger problem is that i want to use custom boot screen (i'm using one right now) to prevent that while booting the screen is black or shows bootmessages.

So i want after starting the pi immediately the bootscreen is coming up and lasts until the application is startet. I want to achive that only the bootscreen is visible the whole time (also no black screen while booting) and than immediately the application comes up. If this is not possible, i want at least minimize the time where the screen is black.

Thanks for youre Help!

[fruitoftheloom]

https://webconverger.org/rpi2

Thanks but that doesn't fit for me.

Other ideas ? How can i speed up OS Jessie by myself, so i can configure it according to my needs ?

http://www.samplerbox.org/article/fastbootrpi

.

[Reini1000]

http://www.samplerbox.org/article/fastbootrpi

i have done this:

Code: Select all

pi@raspberrypi:~ $ sudo systemd-analyze
Startup finished in 1.936s (kernel) + 33.811s (userspace) = 35.748s
pi@raspberrypi:~ $ sudo systemd-analyze blame
         30.023s hciuart.service
          2.137s ModemManager.service
          1.730s codesyscontrol.service
          1.153s raspi-config.service
          1.151s systemd-logind.service
          1.086s networking.service
          1.060s asplashscreen.service
          1.003s alsa-restore.service
          1.000s dhcpcd.service
           991ms triggerhappy.service
           988ms dphys-swapfile.service
           892ms avahi-daemon.service
           707ms polkitd.service
           609ms keyboard-setup.service
           383ms systemd-fsck-root.service
           354ms console-setup.service
           331ms colord.service
           289ms rsyslog.service
           278ms systemd-tmpfiles-setup-dev.service
           233ms ntp.service
           226ms fake-hwclock.service
           208ms systemd-modules-load.service
           180ms kbd.service

Why does the hciuart.service take so long to start ? Is it possible to delay the start so that first the webbrowser is started for example ?

[RaTTuS]

sudo systemctl disable hciuart
if you don't need bluetooth this is fine

[r3d4]

Why does the hciuart.service take so long to start ? Is it possible to delay the start so that first the webbrowser is started for example ?

viewtopic.php?t=138223&p=953707

If you want Bluetooth to work then don't disable the hciuart service ...
If you don't want Bluetooth then don't edit the service, just disable it.

[Reini1000]

sudo systemctl disable hciuart
if you don't need bluetooth this is fine

Thanks, much better now:

Code: Select all

pi@raspberrypi:~ $ sudo systemd-analyze
Startup finished in 1.939s (kernel) + 5.903s (userspace) = 7.843s

But one other question, how can i achive that my custom bootscreen is shown while the whole boot process ?

I want to prevent that there are moments where the screen is black during booting ( i disabled the bootmessages and Pi logo).

[DougieLawson]

Is a custom bootscreen worth it for something that's going to be displayed for less than ten seconds?

[Reini1000]

Is a custom bootscreen worth it for something that's going to be displayed for less than ten seconds?

Normaly i would say no, but i want to creat a device. If somebody starts the device he should get a consistent display while booting.

Which Services can i also turn off to speed up booting)
I'm booting to the Browser from the Text-Console and i'm using the GPIO´s, but there so many Services which become started. Do I need all off them ?

See attached the analyze graph of my booting process: