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Filename : rhel-dmraid-activation

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#!/bin/bash
#
# Activation of dmraid sets.
#
. /etc/init.d/functions

[ -z "${cmdline}" ] && cmdline=$(cat /proc/cmdline)

if ! strstr "$cmdline" nodmraid && [ -x /sbin/dmraid ]; then
	modprobe dm-mirror >/dev/null 2>&1
	dmraidsets=$(LC_ALL=C /sbin/dmraid -s -c -i)
	if [ "$?" = "0" ]; then
		SAVEIFS=$IFS
		IFS=$(echo -en "\n\b")
		for dmname in $dmraidsets; do
			if [[ "$dmname" == isw_* ]] && \
			   ! strstr "$cmdline" noiswmd; then
				continue
			fi
			/sbin/dmraid -ay -i --rm_partitions -p "$dmname" >/dev/null 2>&1
			/sbin/kpartx -u -a "/dev/mapper/$dmname"
		done
		IFS=$SAVEIFS
	fi
fi