[FS#3492] sysupgrade from CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y loses settings where image has BLOCKSIZE:=64k

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FS#3492 - sysupgrade from CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y loses settings where image has BLOCKSIZE:=64k
User who did this - Roger (rogerpueyo)

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Hi,

Maybe one of these workarounds could be applied for while/if there is no fix for the 4K blocksize problem:

  - Make soft_config read-only on all the devices, and unset CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
  - Tweak mount_root so that it can find the sysupgrade settings

Each ones comes at a price. With the first one, soft_config will not be modifiable from the userspace. With the second one, writing to SPI will remain very slow although, most likely, this should only be noticeable when sysupgrading, I guess not for single-file editions.

Any ideas on how to implement the second idea, if even possible?
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3492#comment9928

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