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#!/bin/sh
#set -e
Read_only ()
{
# Marking some block devices as read-only to ensure that nothing
# gets written as linux still writes to 'only' read-only mounted filesystems.
_DEVICES="/dev/sd* /dev/vd*"
for _DEVICE in ${_DEVICES}
do
if [ ! -b "${_DEVICE}" ]
then
continue
fi
echo -n "Setting ${_DEVICE} read-only..." > /dev/console
blockdev --setro ${_DEVICE}
_RETURN="${?}"
case "${_RETURN}" in
0)
echo " done, use 'blockdev --setrw ${_DEVICE}' to set read-write." > /dev/console
;;
*)
echo " failed." > /dev/console
;;
esac
done
}
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