erroneous behavior for iMX+GPT

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

setting up GPT on an iMX6, I noticed a small bug subject to CONFIG_PARTITION_DISK_EFI_GPT_NO_FORCE that leads to unparsed GPTs.

Background: The iMX supports the mmc user partition as bootmedia source too.

Problem: The (additional) filetype check[0] fails, if the given buffer contains multiple, subsequent file(type)s. The buffer might contain the beginning of a disk that contains i.e. a Barebox image
*and* a partition table. The function file_detect_type returns a single (first recognized) type[1]. In my case, it returns the Barebox image type.

There is a comment about this additional check noting it will be mandatory as it will be "[..] added to the EFI Spec. per Intel after v1.02.". Anybody can elaborate on that?
That feedback could help to understand why file_detect_partition_table is insufficient in this case.


[0] https://git.pengutronix.de/cgit/barebox/tree/common/partitions/efi.c#n372
[1] https://git.pengutronix.de/cgit/barebox/tree/common/filetype.c#n352

-- 
Kind Regards,

Leif Middelschulte
Software Development Engineer

KLS Martin GmbH + Co. KG,
A Company of the KLS Martin Group
Am Flughafen 18
79108 Freiburg, Germany

Phone +49 (761) 557 997-543
Fax   +49 (761) 557 997-520 
Web   leif.middelschulte@xxxxxxxxxxxxx
      www.klsmartin.com

Commercial Register: Freiburg im Breisgau HRA 4044
Managing directors: Michael Martin, Karl Leibinger, Christian Leibinger
General partner: KLS Martin Verwaltungsgesellschaft mbH
Commercial register: Stuttgart HRB 451316
Tax ID number: DE 237467280
 
This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this
e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox



[Index of Archives]     [Linux Embedded]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux