R7800: rpcd, ucitrack and uhttpd config files become not readable after reboot the router
Username: Luo Gang
Origin: https://bugs.openwrt.org/index.php?do=details&task_id=1730
Device: Netgear R7800
OpenWrt version: 18.06.0
Steps to reproduce:
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A brand new R7800 with factory firmware (if not, sysupgrade can also reproduce it)
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flash in OpenWrt firmware
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Configure ssh
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Configure pppoe and enable wireless (may not need this)
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ssh into the device, at this moment, /etc/config/rpcd, ucitrack, uhttpd are text files with some content in them, the router works well now.
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reboot the router
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ssh into the device, /etc/config/rpcd, ucitrack, uhttpd becomes not readable, and the files are also not zero byte. most functions of the router stop working now.