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AndrewS
Posts: 3625
Joined: Sun Apr 22, 2012 4:50 pm
Location: Cambridge, UK
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Re: Boot menu to choose distro and/or memory model of choice

Tue Jun 12, 2012 11:46 am

Have a look at rpi-update too - it has code for switching the start.elf version, and I added the code for detecting the current start.elf split being used :)
No reason you couldn't factor it out into a standalone script.

And going back to the original topic of a boot menu - see http://www.raspberrypi.org/phpBB3/viewt ... =24&t=8059

elatllat
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Joined: Sat Dec 17, 2011 5:05 pm

Re: Boot menu to choose distro and/or memory model of choice

Wed Jul 11, 2012 3:46 am

4k or USB3 : hardkernel.com

FAQ : raspberrypi.stackexchange.com

https://google.com/search?q=site%3Awww.raspberrypi.org+search+first

https://www.raspberrypi.org/forums/search.php?search_id=unanswered

hexameron
Posts: 47
Joined: Sun Jan 08, 2012 12:14 pm

Re: Boot menu to choose distro and/or memory model of choice

Sat Jul 21, 2012 5:35 pm

Has anyone done any testing on memory splits between 128 and 196 ? I can easily create Arm144 start.elf and arm160start.elf, and it looks good on the linux side, but I cannot get any sensible results from "vcdbg malloc" to know how much is free on the gpu side. :ugeek:

EDIT: There is enough info in the vcdbg malloc to tell me that I am not getting any extra VCore Ram, as well as corrupting the linked list. So that looks like a dead end.

hadi
Posts: 29
Joined: Fri Jun 15, 2012 4:28 pm

Re: Boot menu to choose distro and/or memory model of choice

Sat Sep 15, 2012 4:40 pm

how can I find out what is my memory split?

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malakai
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Re: Boot menu to choose distro and/or memory model of choice

Sat Sep 15, 2012 4:46 pm

This post explains it quite well

http://www.raspberrypi.org/phpBB3/viewt ... =24&t=4691


In short you boot off start.elf but there are other files in the boot dir to choose a split edit the config file to choose the one you want - the post above does better justice to how it works
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