My hostapd works very well on my raspberry Pi3. But if I put root filesystem in readonly, it does not work. I have put some folders like /var/run and /tmp in a ramdisk filesystem.
I have seen something in log files when the root filesystem is readonly:
random: Cannot read from /dev/random: Resource temporarily unavailable random: Got 0/20 bytes from /dev/random random: Only 0/20 bytes of strong random data available from /dev/random random: Not enough entropy pool available for secure operations
So I think something is wrong with /dev/random when the root filesystem is in readonly mode.
What should I do to fix that ?
-- Edit -- Here is the output of ls -l /dev/random:
crw-rw-rw- 1 root root 1, 8 nov. 12 16:17 /dev/random