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Editorial Team
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Asked: 2026-06-12T16:59:10+00:00

While in u-boot of my ARM based board (DM368) I mark some kernel partition

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While in u-boot of my ARM based board (DM368) I mark some kernel partition block manually as bad. U-boot says that it was marked and, for example, while writing/reading kernel image I see it skipping this bad block.

But when I try to write the same partition from within Linux (loaded via NFS) I see that Linux nandwrite command USES this bad block! I checked this in several ways – Linux ignores bad block mark for 100%. But everywhere in the internet it is said that BBT is one for both u-boot and Linux.

So, where is the catch?

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1 Answer

  1. Editorial Team

    OK, the answer is found.
    For some unclear reason Texas Instruments, manufacturer of the board DM365EVM which I use for development, provides the kernel with different BBT structure. They defined BBT offset as 2, while all the world, including the provided u-boot, defines this offset as 8.
    I wish them a good health for many years.

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