/sbin/aoe-discover is in aoetools 30-3ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | #! /bin/sh
# aoe-discover - trigger an AoE device discovery
# Copyright 2009, CORAID, Inc., and licensed under GPL v.2.
zero=`basename $0`
f=/dev/etherd/discover
if ! test -w $f; then
echo 1>&2 $zero: $f does not exist or is not writeable.
exit 1
fi
if ! test -c $f; then
exec 1>&2
echo "$zero: $f is not a character device file"
echo "$zero: use udev or aoe-mkdevs to create it"
exit 1
fi
echo > $f
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