/dev/random too hungry? Errormsg: PRNG is not seeded

[Harald Schmalzbauer]

Hello,

I have one box where PRNG kickstart doesn't work.
Whne I set 'sysctl kern.random.sys.seeded=0' and 
'cat /boot/kernel/kernel.gz > /dev/random' .random.sys.seeded is still 0.
On any other box it's enough to send one byte and .sys.seeded returns to 1

I found that when installing a new server and trying to usually start sshd.
(ssh-keygen quits immediately with the error: PRNG is not seeded)

I'm not very familar with random or entropy stuff so please tell me what to 
do.
Nothing uncommon so far with that box (besides it starts from CompactFlash 
with memorydisk for /var / and /tmp):

kern.random.yarrow.gengateinterval: 10
kern.random.yarrow.bins: 10
kern.random.yarrow.fastthresh: 192
kern.random.yarrow.slowthresh: 256
kern.random.yarrow.slowoverthresh: 2
kern.random.sys.seeded: 0
kern.random.sys.harvest.ethernet: 1
kern.random.sys.harvest.point_to_point: 1
kern.random.sys.harvest.interrupt: 1
kern.random.sys.harvest.swi: 0
interrupt                          total       rate
irq0: clk                        1038776        998
irq1: atkbd0                           2          0
irq3: sio1                          2610          2
irq5: em0                            133          0
irq7: ppc0                             1          0
irq8: rtc                         132946        127
irq10: fxp0                           72          0
irq12: fwohci0++                       1          0
irq13: npx0                            2          0
irq14: ata0                         3110          2
irq15: ata1                          202          0

Thanks in advance,

-Harry
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