I have tried adding loglevel=9 and both console=ttyAMA0,115200 and
earlyprintk=pl011,0x7ff80000 which work with Linaro/juno but still nothing being
printed.
I'll keep debugging...
-----Original Message-----
From: Peter Robinson [mailto:pbrobinson@gmail.com]
Sent: Wednesday, December 17, 2014 5:53 PM
To: Ralph Campbell
Cc: arm(a)lists.fedoraproject.org
Subject: Re: [fedora-arm] Anyone install F21 on ARM juno board?
On Wed, Dec 17, 2014 at 5:59 PM, Ralph Campbell <ralph.campbell(a)broadcom.com>
wrote:
Yes, the EFI boot code comes from Linaro and is based on Tianocore
and has support for DTBs.
I can TFTP boot with the Linaro kernel, DTB, and initrd.
I can TFTP boot grubaa64.efi from Fedora-Server-DVD-aarch64-21.iso mounted on the server
and grub displays the install menu options.
When I select any of those options, I see vmlinuz being TFTP loaded, "EFI stub:
Booting Linux Kernel...", and then nothing.
I tried TFTP booting vmlinuz directly (compressed and uncompressed), bypassing grub, and
specifying the initrd.img and DTB but that fails too.
Maybe I need to pass some arguments to grub or change the grub.config somehow.
I'm not sure how the DTB is loaded via grub/vmlinuz.
I would try a console= line for the serial port your running it over.
Peter
On Fri, Dec 12, 2014 at 6:05 PM, Ralph Campbell
<ralph.campbell(a)broadcom.com> wrote:
> I’m trying to install F21 aarch64 on an ARM juno development board.
>
>
>
> I have been able to compile and install the Linaro kernel and UEFI
> boot code OK and TFTP boot the kernel with a USB rootfs image
> following the instructions from
>
http://releases.linaro.org/latest/members/arm/openembedded/juno-lsk.
>
>
>
> Some of the problems I’m hitting are due to the fact that the current
> kernel source has a bug preventing 2 USB flash drives from being used
> at the same time and that there doesn’t seem to be support in UEFI
> for USB DVD ROM drives or ISO9660 filesystems.
>
> I can TFTP boot the EFI/BOOT/grubaa64.efi from the
> Fedora-Server-DVD-aarch64-21.iso image but I’m not sure how to modify
> grub.cfg to TFTP boot vmlinuz and initrd.img.
>
>
>
> If anyone has been through this process and succeeded, I would much
> appreciate the information.
I'm not familiar with uEFI, or u-boot for that matter, on the Juno
platform as I don't have access to the device. I believe currently
even with uEFI you need device tree support which for Juno has only
just landed in 3.19
Is the uEFI implementation for Juno based on the reference Tianocore
(sp?) implementation?
Peter
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