XO1/os31 update-nand issues

James Cameron quozl at laptop.org
Sun Mar 25 21:40:28 EDT 2012

On Thu, Mar 22, 2012 at 11:54:21PM -0700, Yioryos Asprobounitis wrote:
> Tried to update 2 unlocked XO-1s running firmware q2{e49,f06,f08} from
> ext3 USB or SDcard. 
> "update-nand {u, disk, ext,sd}:\os31.img} freezes after the newline
> return without further feedback.

Yes, expected, and easily reproduced here.  The interrupt key words, and
ftrace shows OpenFirmware is deep in update-nand looking for what is
supposed to be there in the file but isn't.

> From SDcard the XO restarts after ~20 sec while from USB stays there
> for up to 10 min.

Perhaps due to relative differences in SD card and USB performance.

> md5sum check out and os31.crc is present.
> If os31.img, .crc are know to be good, anything to check/diagnose?

Don't use update-nand on XO-1 against a non-partitioned image.

Use copy-nand, as per the instructions:

These are instructions for the unsigned build used by developers and
testers.  Once a signed build becomes available, the instructions should
be changed to using the four-game-key method of starting the process,
without any typing required.  Then the distinction between copy-nand and
update-nand isn't important for the end user.

James Cameron

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