[FS#268] sysupgrade error

[LEDE Bugs]

The following task has a new comment added:

FS#268 - sysupgrade error
User who did this - Mathias Kresin (mkresin)

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The wrt1900ac has a dual flash partition layout. During upgrade the partitions are written alternating. The variable boot_part is read from the boot loader settings partition do decide if the primary or secondary partition should be overwritten.

Normally the boot_part partition has the value 1 or 2. In your case the variable seams to have the value "2fw_setenv boot_part 2".

This is either a bug of the current running image or you somehow manged to mess up the variable.

1. Which Version is installed on the wrt1900ac at the moment?

To get this fixed please run:

fw_setenv boot_part 2

If it's not a bug of the current running image, the sysupgrade should work now.

Please do _three_ more sysupgrades without running fw_setenv to test if the boot_part bootloader variable gets corrupted again and report back.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=268#comment790