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If board_detect is interrupted by cutting power on first boot, board.json might only be half-way written and the file will not be written again correctly on subsequent boots. Write to a temporary file first, then rename. Since a rename on the same file system is an atomic operation, it ensures that either /etc/board.json does not exist or that the complete file exists. Signed-off-by: Andreas Gnau <andreas.gnau@iopsys.eu> Link: https://github.com/openwrt/openwrt/pull/20831 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> |
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