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#!/bin/sh
#set -e
Read_only ()
{
# Marking the usual block devices for harddisks read-only
for _DEVICE in /dev/sd* /dev/vd*
do
if [ -b "${_DEVICE}" ]
then
printf "Setting device %-9s to read-only mode:" ${_DEVICE} > /dev/console
blockdev --setro ${_DEVICE} && printf " done [ execute \"blockdev --setrw %-9s\" to unlock]\n" ${_DEVICE} > /dev/console || printf "failed\n" > /dev/console
fi
done
}
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