Drop obsolete code in d-i/finish-install now that d-i uses haveged (via a...

debian-edu-config (2.10.66) UNRELEASED; urgency=medium

  * Add comment about our d-i finish-install code to add entropy

    becoming obsolete (See #923675).

  [ Holger Levsen ]

  * Drop obsolete code in d-i/finish-install now that d-i uses haveged (via a

    newly introduced udeb) or a hardware RNG. (See #923675).

 -- Petter Reinholdtsen <pere@debian.org>  Sat, 20 Apr 2019 07:53:26 +0200

# easier to track our changes

edu-etcvcs commit

# Try to add entropy when running low

# FIXME this feature can be removed when haveged is part of Debian Installer, see #923675

(

   cd /

   while true ; do

       entropy="$(cat /proc/sys/kernel/random/entropy_avail)"

       if [ 130 -gt "$entropy" ] ; then

           log "low on entropy, pool is $entropy. trying to add more"

           # Disk IO add entropy to the kernel.  Flush cache to ensure

           # find and touch/rm causes disk IO.

           sync

           echo 3 > /proc/sys/vm/drop_caches

           find /target > /dev/null || true

           touch /target/var/tmp/foo

           sync

           rm /target/var/tmp/foo

           sync

           entropy="$(cat /proc/sys/kernel/random/entropy_avail)"

           log "entropy pool is $entropy after trying to add"

       fi

       sleep 20

   done

) < /dev/null 2>&1 3>/dev/null 4>&3 5>&3 6>&3 | logger -t edu-entropy-add &

epid=$!

# Make the installation look more like a finished system, to make sure

# debconf-get-selections --installer work.

. /usr/lib/finish-install.d/94save-logs