Re: Grub Error Marvell Board

[Sven Auhagen <sven.auhagen@voleatech.de>]

Hi Leif,

Thank you for your answer.

The eMMC is configured and recognized.
I load the grub image from the eMMCs ESP partition.

Only after loading and it when edk2 hands over control to the grub application I get an error that no resources are available to open the just used disk partition.
The eMMC partition loader does not have any resources to read blocks from the eMMC.
Scanning and accessing a USB drive does work though.

We did encounter an additional hardware issue with the eMMC so I will wait until that is resolved to dig into the problem again.

I might write again at that point.

Best
Sven

From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Monday, 29. October 2018 at 9:03 PM
To: Sven Auhagen <sven.auhagen@voleatech.de>
Cc: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: [edk2] Grub Error Marvell Board

Hi Sven,

On Fri, Oct 26, 2018 at 02:08:16PM +0000, Sven Auhagen wrote:
I have a Marvell Board like the MCBin with an Marvell 8040 CPU.

A custom board?
Is this using one of the platforms from edk2-platforms, or something
from Marvell's repositories?

EDK2 works fine, a Debian installer runs just fine.
The problem comes after the installation.
When I try to boot from the eMMC where the files were installed on
grub seems not to find the partitions anymore:
Tianocore/EDK2 firmware version MARVELL_EFI
Press ESCAPE for boot options XhcCheckUrbResult: STALL_ERROR! Completecode = 6
XhcControlTransfer: error - Device Error, transfer - 2
XHCI: Don't support multi-TT feature for Hub now. (force to disable MTT)

Well, this bit is USB related, so we can probably ignore it.

Installed Fat filesystem on BE649F98
Installed Fat filesystem on BE80FE98
...[Bds]Booting Debian
Loading driver at 0x000B6732000 EntryPoint=0x000B6732400
Loading driver at 0x000B6732000 EntryPoint=0x000B6732400
error: no such partition.
Entering rescue mode...
grub rescue>
grub rescue> ls
(hd0) (hd1) (hd2) (hd3)
grub rescue> set
cmdpath=(hd1)/efi/debian
prefix=(hd1,gpt2)/boot/grub
root=hd1,gpt2
grub rescue>
Has anyone an idea why this is happening or what could be the cause?

Does your platform build configuration enable the eMMC?
The easiest explanation would be if your EDK2 simply does not support
the eMMC. As long as the hardware description tells Linux about it,
the kernel can access it even when the firmware does not know how to
use it.

Best Regards,

Leif


Beste Grüße/Best Regards

Sven Auhagen
Dipl. Math. oec., M.Sc.

Voleatech GmbH
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E-Mail: sven.auhagen@voleatech.de

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