/usr/sbin/grub-set-default is in grub-legacy-ec2 0.7.7~bzr1212-0ubuntu1.
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 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | #!/bin/sh
diverted=/usr/sbin/grub-set-default.real
legacy_ec2=/usr/sbin/grub-set-default-legacy-ec2
normal=/usr/sbin/grub-set-default
warn() { echo "WARNING:" "$@" 1>&2; }
Usage() {
cat <<EOF
${0} is a wrapper provided by grub-legacy-ec2.
It ensures that the appropriate 'set-default' is called.
For specific version or help info invoke one of the following directly:
${diverted}
and
${legacy_ec2}
EOF
}
[ $# -eq 0 ] && { Usage; exit 1; }
for a in "$@"; do
case "$a" in
--help|-h|-v|--version) Usage; exit 0;;
esac
done
"${legacy_ec2}" "${@}"
lret=$?
[ ${lret} -eq 0 ] || warn "${legacy_ec2} returned ${lret}"
dret=0
if [ -x "${diverted}" -a -f "/boot/grub/grub.cfg" ]; then
"${diverted}" "$@"
dret=$?
fi
[ ${dret} -eq 0 ] || warn "${diverted} returned ${dret}"
[ $lret -eq 0 -a $dret -eq 0 ]
exit
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