On Sun, Dec 23, 2018 at 12:55:12PM +0100, Michael Niewöhner wrote: > There is another issue but I don't know if both are related. Maybe that's just a > timing issue... > > root@debian:~# dd if=/dev/hwrng bs=1 count=1 > dd: error reading '/dev/hwrng': Operation not permitted > 0+0 records in > 0+0 records out > 0 bytes copied, 0.755958 s, 0.0 kB/s > root@debian:~# dd if=/dev/hwrng bs=1 count=1 | xxd; dd if=/dev/hwrng bs=1 > count=1 | xxd > dd: error reading '/dev/hwrng': Operation not permitted > 0+0 records in > 0+0 records out > 0 bytes copied, 0.755697 s, 0.0 kB/s > 1+0 records in > 1+0 records out > 00000000: 52 R > 1 byte copied, 0.0106268 s, 0.1 kB/s > > > Michael What does /sys/devices/virtual/misc/hw_random/rng_current show? Did run commands as a sanity check on my laptop and seem to work. /Jarkko
