ee771d3dd0
The vendor firmware checks for a bmt header in the last 528 erase blocks of flash. The OpenWrt partition table did not respect that requirement, and therefore the vendor and openwrt chainloader fight over those blocks on every boot, potentially corrupting data stored in UBI blocks there. This commit increases the size of the reserved_bmt partition to avoid that fight. Although the vendor bootloader only seems to touch the final 250 erase blocks[1], the original vendor firmware system partition ended at 0x1be00000[2], so to be conservative, the consensus is to use that as the end of mtd2 (ubi) partition and leave the last 528 blocks for mtd3 (reserved_bmt). From https://openwrt.org/toh/gemtek/mxf-w1700k: [1] OEM bootlog: [ 5.324337] bmt pool size: 250 [2] OEM bootlog: [ 5.478927] 0x000008600000-0x00001be00000 : "system" Adds a compat_version to warn users to re-install to accomodate the shrunken mtd2 ubi partition. Fixed two nits suggested by Claude, zero padding a hex value and removed an extra space. Removed the wildcard setting of compat_version for other boards, as suggested by Robert Marko, set compat_version only for the w1700k. Reported-by: Loïc Yhuel <loic.yhuel@gmail.com> Signed-off-by: Russell Senior <russell@personaltelco.net> Link: https://github.com/openwrt/openwrt/pull/23061 Signed-off-by: Robert Marko <robimarko@gmail.com> |
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