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127 lines
3.2 KiB
127 lines
3.2 KiB
#!/bin/bash |
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is_mpath() { |
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local _dev=$1 |
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[ -e /sys/dev/block/$_dev/dm/uuid ] || return 1 |
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[[ $(cat /sys/dev/block/$_dev/dm/uuid) =~ mpath- ]] && return 0 |
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return 1 |
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} |
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majmin_to_mpath_dev() { |
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local _dev |
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for i in /dev/mapper/*; do |
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[[ $i == /dev/mapper/control ]] && continue |
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_dev=$(get_maj_min $i) |
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if [ "$_dev" = "$1" ]; then |
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echo $i |
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return |
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fi |
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done |
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} |
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# called by dracut |
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check() { |
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local _rootdev |
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[[ $hostonly ]] || [[ $mount_needs ]] && { |
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for_each_host_dev_and_slaves is_mpath || return 255 |
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} |
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# if there's no multipath binary, no go. |
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require_binaries multipath || return 1 |
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require_binaries kpartx || return 1 |
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return 0 |
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} |
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# called by dracut |
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depends() { |
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echo rootfs-block |
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echo dm |
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return 0 |
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} |
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# called by dracut |
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cmdline() { |
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for m in scsi_dh_alua scsi_dh_emc scsi_dh_rdac dm_multipath; do |
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if grep -m 1 -q "$m" /proc/modules ; then |
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printf 'rd.driver.pre=%s ' "$m" |
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fi |
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done |
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} |
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# called by dracut |
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installkernel() { |
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local _ret |
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local _arch=${DRACUT_ARCH:-$(uname -m)} |
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local _funcs='scsi_register_device_handler|dm_dirty_log_type_register|dm_register_path_selector|dm_register_target' |
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local _s390 |
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if [ "$_arch" = "s390" -o "$_arch" = "s390x" ]; then |
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_s390drivers="=drivers/s390/scsi" |
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fi |
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hostonly='' dracut_instmods -o -s "$_funcs" "=drivers/scsi" "=drivers/md" ${_s390drivers:+"$_s390drivers"} |
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} |
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# called by dracut |
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install() { |
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local _f _allow |
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add_hostonly_mpath_conf() { |
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is_mpath $1 && { |
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local _dev |
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_dev=$(majmin_to_mpath_dev $1) |
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[ -z "$_dev" ] && return |
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strstr "$_allow" "$_dev" && return |
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_allow="$_allow --allow $_dev" |
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} |
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} |
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inst_multiple -o \ |
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dmsetup \ |
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kpartx \ |
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mpath_wait \ |
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multipath \ |
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multipathd \ |
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mpathpersist \ |
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xdrgetuid \ |
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xdrgetprio \ |
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/etc/xdrdevices.conf \ |
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/etc/multipath.conf \ |
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/etc/multipath/* \ |
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/etc/multipath/conf.d/* |
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[[ $hostonly ]] && [[ $hostonly_mode = "strict" ]] && { |
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for_each_host_dev_and_slaves_all add_hostonly_mpath_conf |
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[ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf |
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} |
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inst $(command -v partx) /sbin/partx |
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inst_libdir_file "libmultipath*" "multipath/*" |
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inst_libdir_file 'libgcc_s.so*' |
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if [[ $hostonly_cmdline ]] ; then |
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local _conf=$(cmdline) |
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[[ $_conf ]] && echo "$_conf" >> "${initdir}/etc/cmdline.d/90multipath.conf" |
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fi |
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if dracut_module_included "systemd"; then |
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inst_simple "${moddir}/multipathd.service" "${systemdsystemunitdir}/multipathd.service" |
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systemctl -q --root "$initdir" enable multipathd.service |
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else |
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inst_hook pre-trigger 02 "$moddir/multipathd.sh" |
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inst_hook cleanup 02 "$moddir/multipathd-stop.sh" |
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fi |
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inst_hook cleanup 80 "$moddir/multipathd-needshutdown.sh" |
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inst_hook shutdown 20 "$moddir/multipath-shutdown.sh" |
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inst_rules 40-multipath.rules 56-multipath.rules \ |
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62-multipath.rules 65-multipath.rules \ |
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66-kpartx.rules 67-kpartx-compat.rules \ |
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11-dm-mpath.rules |
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} |
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