[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: Installing NetBSD on Jetson Nano
I do have a serial cable for it yes. The problem I'm having is that
when u-boot says to hit a key to interrupt boot, boot doesn't get
interrupted if I hit a key on the USB keyboard attached to the Jetson
or if I send a keystroke via the serial console.
Here's the boot log from the most recent (if not the most up-to-date)
Armbian image I was testing.
On Sun, Jan 23, 2022 at 9:24 PM Jason Mitchell <jmitchel%bigjar.com@localhost> wrote:
> U-Boot is written directly to disk, but for NetBSD there's also a DOS partition that contains the EFI bootloader (in EFI/BOOT/bootaa64.efi).
> Now that I think about it, the U-Boot supplied from Nvidia probably looks for a Linux kernel on an ext4fs filesystem. It might not be configured to boot via EFI at all, not even as a fallback. It's possible/probable that you could configure the existing U-Boot to boot from EFI, but I don't know the commands to do so.
> Earlier I found a page that contained instructions on removing U-Boot from the QSPI-NOR so the Jetson will use U-Boot on the SD card, but I can't locate it now. I think that's another way to boot NetBSD, as the NetBSD U-Boot will be configured to look for an EFI loader on a DOS partition by default And a serial console, would be most helpful, if you don't already have one.
> Jason M.
> Get BlueMail for Android
> On Jan 23, 2022, at 2:09 PM, Lloyd Parkes <lloyd%must-have-coffee.gen.nz@localhost> wrote:
>> On 23/01/22 22:00, Dan MacDonald wrote:
>>> I installed Jetpack 4.5 a while back which changed the boot process
>>> for the Nano and now allows booting from USB which the recent Armbian
>>> releases take advantage of. The Jetpack 4.5 release notes say:
>>> "Boot firmware for all Jetson Nano developer kits updated to relocate
>>> boot firmware to integrated QSPI-NOR."
>> Nice. I saw experimental images for this, but I left it alone because I
>> didn't want to encourage anyone to change horses in midstream.
>>> On Sun, Jan 23, 2022 at 2:51 AM Jason Mitchell <jmitchel%bigjar.com@localhost> wrote:
>>>> Okay, this is confusing to me. There's no U-Boot at all, unless it's further on. Where does the DOS partition start? Maybe hexdump up to the start of the DOS partition?
>> As I said earlier, I don't think there is a DOS partition. U-boot is
>> (almost certainly) written directly to its partition without a file
>> system. On the QSPI-NOR it'll be a proprietary partition scheme.
>> Do you guys have serial consoles for your Jetson Nanos? All the early
>> boot messages and user input is done via the serial console. I have a
>> https://www.sparkfun.com/products/9717 and I have replaced the
>> connectors so that I can plug in RX, TX and GND without any of the
>> others (plugging the 5V line by accident might (probably will) destroy
>> your Jetson. Drop me an email off list if you want more details about
>> dealing with the connector.
>> I don't see how you can "press any key" to interrupt U-Boot if you don't
>> have a serial console, and if you can't interrupt U-Boot then you can't
>> ask it to boot NetBSD.
Main Index |
Thread Index |