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The Boot Order of the Raspberry Pi Is Unusual

patrickmccanna.net

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Re: The Boot Order of the Raspberry Pi Is Unusual

#3

Post by atoav »

dmitrygr wrote: post #2

How can one "discover" something well documented in the datasheet, and on google https://forums.raspberrypi.com/viewtopic.php?t=266130 , https://www.google.com/search?q=raspberry+pi+boot+chain

As an electrical engineer: you'd be surprised how many people "discover" long held truths like that you can use the MPN ("Manufacturer Part Number") of a device to find it's documentation and that this documentation sometimes contains useful data.

Re: The Boot Order of the Raspberry Pi Is Unusual

#6

Post by oddmiral »

baobun wrote: post #5
messe wrote: post #4

> This explains several Raspberry Pi oddities: > The Raspberry Pi has No BIOS / UEFI This isn't really that strange for an ARM SoC.

Also, there is UEFI firmware for it. https://0ink.net/posts/2024/2024-07-01-pi-uefi-boot.html

Can this UEFI firmware be ported to other ARM devices, e.g. phones, tablets, books?

Re: The Boot Order of the Raspberry Pi Is Unusual

#7

Post by baobun »

oddmiral wrote: post #6
baobun wrote: post #5

Earlier quoted context omitted.

Also, there is UEFI firmware for it. https://0ink.net/posts/2024/2024-07-01-pi-uefi-boot.html

Can this UEFI firmware be ported to other ARM devices, e.g. phones, tablets, books?

Have you checked out uboot?

https://u-boot.org/

Re: The Boot Order of the Raspberry Pi Is Unusual

#8

Post by franga2000 »

baobun wrote: post #7
oddmiral wrote: post #6

Earlier quoted context omitted.

Can this UEFI firmware be ported to other ARM devices, e.g. phones, tablets, books?

Have you checked out uboot? https://u-boot.org/

Doesn't everything under the sun boot with uboot? Uboot is usually what people want to replace when they say "why can't this just run UEFI?"

Re: The Boot Order of the Raspberry Pi Is Unusual

#9

Post by M95D »

franga2000 wrote: post #8
baobun wrote: post #7

Earlier quoted context omitted.

Have you checked out uboot? https://u-boot.org/

Doesn't everything under the sun boot with uboot? Uboot is usually what people want to replace when they say "why can't this just run UEFI?"

I have yet to find a valid reason for UEFI to replace u-boot, or UEFI to exist at all.

Re: The Boot Order of the Raspberry Pi Is Unusual

#10

Post by JohnBooty »

dmitrygr wrote: post #2

How can one "discover" something well documented in the datasheet, and on google https://forums.raspberrypi.com/viewtopic.php?t=266130 , https://www.google.com/search?q=raspberry+pi+boot+chain

I don't think the author was presenting it like some kind of "new to the world" discovery. It was just something they recently learned.
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