# Code to recreate a software RAID configuration. if ! has_binary mdadm; then return fi # Test for features of mdadm. # True if mdadm supports uuid restoration. FEATURE_MDADM_UUID= # Test for the mdadm version, version gets printed on stderr. mdadm_version=$(get_version mdadm --version) [ "$mdadm_version" ] BugIfError "Function get_version could not detect mdadm version." if version_newer "$mdadm_version" 2.0 ; then FEATURE_MDADM_UUID="y" fi create_raid() { local raid device options read raid device options < <(grep "^raid $1 " "$LAYOUT_FILE") local mdadmcmd="mdadm --create $device --force" local devices_total=0 local devices_found=0 local devices="" local option for option in $options ; do case "$option" in (devices=*) local list=${option#devices=} OIFS=$IFS IFS="," local raiddevice for raiddevice in $list ; do devices="$devices$raiddevice " let devices_found+=1 done IFS=$OIFS ;; (uuid=*) if [ -n "$FEATURE_MDADM_UUID" ] ; then mdadmcmd="$mdadmcmd --$option" fi ;; (raid-devices=*) devices_total=${option#raid-devices=} mdadmcmd="$mdadmcmd --$option" ;; (*) mdadmcmd="$mdadmcmd --$option" ;; esac done # If some devices are missing, add 'missing' special devices if [ $devices_found -lt $devices_total ] ; then # Print as many 'missing' as there are missing devices let missing=$devices_total-$devices_found LogPrint "Software RAID $device has not enough physical devices, adding $missing 'missing' devices" devices="$devices $(printf "missing%.0s " $(seq $missing))" fi # Try to make mdadm non-interactive... mdadmcmd="echo \"Y\" | $mdadmcmd $devices" cat >> "$LAYOUT_CODE" <&2 EOF ### Create partitions on MD (if any). # 'label' argument is not specified here because we don't know (there may # be none), but it will be computed automatically by create_partitions. create_partitions "$device" cat >> "$LAYOUT_CODE" <