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system/skeleton: don't use random-seed from a read-only fs

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A random-seed from a read-only filesystem is useless.

Also, drop the check for /etc/random-seed existence; it must exist after a
touch.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Baruch Siach 2015-07-08 08:24:12 +03:00 committed by Peter Korsgaard
parent ed0b44fdce
commit f33f766860
1 changed files with 7 additions and 10 deletions
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17
system/skeleton/etc/init.d/S20urandom
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@ -11,22 +11,19 @@
case "$1" in case "$1" in
start|"") start|"")
if [ "$VERBOSE" != no ]
then
echo -n "Initializing random number generator... "
fi
# Load and then save 512 bytes,
# which is the size of the entropy pool
if [ -f /etc/random-seed ]
then
cat /etc/random-seed >/dev/urandom
fi
# check for read only file system # check for read only file system
if ! touch /etc/random-seed 2>/dev/null if ! touch /etc/random-seed 2>/dev/null
then then
echo "read-only file system detected...done" echo "read-only file system detected...done"
exit exit
fi fi
if [ "$VERBOSE" != no ]
then
echo -n "Initializing random number generator... "
fi
# Load and then save 512 bytes,
# which is the size of the entropy pool
cat /etc/random-seed >/dev/urandom
rm -f /etc/random-seed rm -f /etc/random-seed
umask 077 umask 077
dd if=/dev/urandom of=/etc/random-seed count=1 \ dd if=/dev/urandom of=/etc/random-seed count=1 \