Re: u-boot debug, was: Re: U-boot on RPI3, sees disk but won't boot it

Mark Millard <[email protected]>
Newsgroups gmane.os.freebsd.devel.arm
Message-ID <[email protected]>
On 2022-Oct-2, at 14:43, Mark Millard <[email protected]> wrote:

> On 2022-Oct-2, at 13:18, Klaus Küchemann <[email protected]> wrote:
> 
>> . . .
>> 
>>> Am 02.10.2022 um 21:48 schrieb Mark Millard <[email protected]>:
>>> 
>>> (RaspiOS and Ubuntu do not use U-Boot last I knew. So
>>> they do not make for good comparisons for the purpose
>>> as far as I know.)
>> 
>> RaspiOS doesn’t , Ubuntu(and others) use u-boot since years …
>> while possible Ubuntu(or others) have own u-boot patches ,
>> from guessing it seems more probable that they also will sometimes hang after (re)boot.
> 
> Sufficiently modern Ubuntu does not use U-Boot by
> default, at least for server builds.
> 
> ubuntu-22.04.1-preinstalled-server-arm64+raspi.img
> has:
> 
> # more /mnt/config.txt 
> [all]
> kernel=vmlinuz
> . . .
> 
> where vmlinux is seen as:
> 
> /mnt/vmlinuz

I should have mentioned the naming convention that
is in use: vmlinuz is a compressed variant of vmlinux
as I remember the naming.

> No use of U-Boot: direct booting of vmlinux via
> the RPi* firmware's ability to do so.
> 
> They do provide uboot_rpi_*.bin 's for folks that
> want to change to use such:
> 
> /mnt/uboot_rpi_3.bin
> /mnt/uboot_rpi_4.bin
> /mnt/uboot_rpi_arm64.bin
> 
> But the supplied config.txt makes no mention of any
> uboot*.bin and things have to be changed to cause
> a uboot_rpi_*.bin to be involved.


===
Mark Millard
marklmi at yahoo.com
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