Hi Maxime,
From: Maxime Ripard [mailto:maxime.ripard@free-electrons.com] Sent: jeudi 11 mai 2017 10:20
Hi,
On Thu, May 11, 2017 at 09:51:50AM +0200, Patrick Delaunay wrote:
I have a request to support GPT over MTD to have the MTD informations without U-Boot environment(CONFIG_ENV_IS_NOWHERE is a other requirement of my project to manage several board configuration with the same defconfig; boot from NAND or NOR or SDCARD).
What would happen if you have a bad block in the middle of the primary or secondary GPT headers (or both)?
Maxime
All Bad block are skipped.... => primary GPT header is located at the beginning of first good block => backup GPT header is located at the end the of last good block
And gpt create will failed if the erase block command (for primary or backup GPT) produce a new bad block.
I try to explain this behavior in the added file doc/README.gpt.mtd with the patch
[PATCH v6 07/18] disk: part: add support of GPT partitioning over MTD
regards
Patrick