[OE-core] Why is urandom not installed under /etc/rcX.d ?

[ChenQi]

Hi All,

I noticed that the urandom script is deliberately disabled in our 
system, although it is installed under /etc/init.d.

grep urandom initscripts_1.0.bb

     install -m 0755    ${WORKDIR}/urandom ${D}${sysconfdir}/init.d
#    ln -sf        ../init.d/urandom ${D}${sysconfdir}/rc6.d/S30urandom
#    ln -sf        ../init.d/urandom ${D}${sysconfdir}/rc0.d/S30urandom
#    ln -sf        ../init.d/urandom ${D}${sysconfdir}/rcS.d/S55urandom

Is there any problem if it is enabled?

According to documentation in linux/drivers/char/random.c, it is used to 
ensure unpredictability at system startup.

Cheers,
Chen Qi