"Can't open boot device" XO laptop firmware/OFW issue?

classic Classic list List threaded Threaded
4 messages Options
Reply | Threaded
Open this post in threaded view
|

"Can't open boot device" XO laptop firmware/OFW issue?

Adam Holt-2
Attached photo (in-lined below) should be an easy firmware/boot issue to solve I hope!  Can anybody remind me what's need / what I need to try next?

Clarif: this is an XO-1.5 (SKU100) with:
- up-to-date RTC clock
- up-to-date firmware (Q3C17)
- up-to-date OS (OLPC OS 13.2.9)

And yet I can no longer boot it (it did boot earlier today, with an earlier OS).

Thanks all for ideas!

Inline image 1

_______________________________________________
Devel mailing list
[hidden email]
http://lists.laptop.org/listinfo/devel
Reply | Threaded
Open this post in threaded view
|

Re: "Can't open boot device" XO laptop firmware/OFW issue?

James Cameron-2
Either there is an SD card in the external slot with unsupported partition
table, or there is a fault with the internal microSD card or slot.

--
James Cameron
http://quozl.netrek.org/
_______________________________________________
Devel mailing list
[hidden email]
http://lists.laptop.org/listinfo/devel
Reply | Threaded
Open this post in threaded view
|

Re: "Can't open boot device" XO laptop firmware/OFW issue?

Adam Holt-2
On Sun, Feb 18, 2018 at 3:17 PM, James Cameron <[hidden email]> wrote:
Either there is an SD card in the external slot with unsupported partition
table, or there is a fault with the internal microSD card or slot.

I reflashed it a 2nd time and it came back to life (boots properly, for now!)

I've seen this symptom (sometimes intermittent, sometimes permanent) on a few similar XO-1.5's.

Seems the internal microSD's are sometimes/likely running out of steam for mysterious reasons, despite minimal usage (though after ~7 years one cannot complain, and at least these microSD's are replaceable on the XO-1.5 !)

Thanks James.

--
James Cameron
http://quozl.netrek.org/

--

_______________________________________________
Devel mailing list
[hidden email]
http://lists.laptop.org/listinfo/devel
Reply | Threaded
Open this post in threaded view
|

Re: "Can't open boot device" XO laptop firmware/OFW issue?

James Cameron-2
As it ages, the microSD card takes longer and longer to erase and
write blocks.

Eventually the time it takes to erase and write may exceed the few
seconds between end of reflashing and the reboot power cycle.

In those situations, use fs-update instead of the four button method,
and leave the system on for five minutes before the first reboot.

--
James Cameron
http://quozl.netrek.org/
_______________________________________________
Devel mailing list
[hidden email]
http://lists.laptop.org/listinfo/devel