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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 01-13-2014, 09:01 AM   #1
embLinux
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Anyone tryed Linux to boot Linux ?


Hi everyone,

i heared something about replacing the bootloader(s) with a minimalistic kernel to load the actuall kernel (here.
Has anyone ever tried that ? What are the efforts ? Is it faster, does it need less memory ? So in the end is it a useable replacement for the bootloader?

Greets
 
Old 01-14-2014, 05:37 AM   #2
onebuck
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Hi,

I just finished reading the referenced link: http://elinux.org/images/4/45/Ipl_and_ubi.pdf

Please read the pdf file and you will find answers to these questions as presented by the author.

A user would still need to develop a IPL integrated Linux kernel. Initialization time would be the advantage to use this technique. Plus adding a wide variety of boot media at IPL. Time for this technique is shown as 820mS and I would like to see numbers for other media since the IPL kernel would need to identify and load drivers for that particular hardware along with other protocol overhead.
 
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Old 01-15-2014, 02:35 AM   #3
embLinux
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I'm not so sure. Sadly there doesn't seem to be a community around that topic. I think initializing drives and devices will be done just once, instead of 1st time in the bootloader and 2nd time by the kernel again. That causes to use the devices during startup and saving lot of time by, not initiliazing everything again. But I'm not sure, since this sounds too logic or easy to be true. And if so, I'm not sure why this isn't spread much more?
 
Old 01-18-2014, 03:20 PM   #4
floppy_stuttgart
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"plop" is doing it? http://www.plop.at/
 
Old 01-18-2014, 07:22 PM   #5
sag47
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Quote:
Originally Posted by floppy_stuttgart View Post
"plop" is doing it? http://www.plop.at/
Looks that way. Nice find

http://www.plop.at/en/bootmanagers.html
 
Old 01-20-2014, 04:27 AM   #6
embLinux
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Quote:
Originally Posted by floppy_stuttgart View Post
"plop" is doing it? http://www.plop.at/
looks like, actually i forgot i was thinking about Embedded Devices and i think this would be overkill ?
 
  


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