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Cannot read from /dev/random: Resource temporarily unavailable

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issue

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Configuration file: /etc/hostapd/hostapd.conf
Using interface wlp4s0 with hwaddr 3c:33:00:f6:67:2b and ssid "Codz"
random: Cannot read from /dev/random: Resource temporarily unavailable
random: Only 0/20 bytes of strong random data available from /dev/random
random: Not enough entropy pool available for secure operations
WPA: Not enough entropy in random pool for secure operations - update keys later when the first station connects
wlp4s0: interface state UNINITIALIZED->ENABLED
wlp4s0: AP-ENABLED

solution

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mv /dev/random /dev/random.orig
ln -s /dev/urandom /dev/random

reference: