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We want to create more entropy for an application so we setup:
rm -f /dev/random
ln -s /dev/urandom
This is exactly what I want. However whenever I reboot the system ...
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- 06-14-2010 #1Just Joined!
- Join Date
- Apr 2010
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- New York
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- 18
Dev Random
We want to create more entropy for an application so we setup:
rm -f /dev/random
ln -s /dev/urandom
This is exactly what I want. However whenever I reboot the system the /dev/random file has been recreated and the soft link is gone. I can't seem to figure out why this happens.
- 06-15-2010 #2Linux Guru
- Join Date
- Jan 2005
- Location
- Seattle, WA, USA
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- 3,252
This happens because /dev does not contain normal files. /dev contains your devices, and it is populated dynamically as things change on the system (you plug in a USB key, etc.).
If you want to make a "persistent" change to /dev, there are two options:
1) Write a kernel module
2) Write an init script
The second is MUCH easier
. Basically, write an init script that removes /dev/random and links it to /dev/urandom. This way, on boot, the action will be taken, and it will appear that the change is permanent.
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