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Edit File : module-setup.sh \| Size : 3.38 KB
#!/bin/bash is_mpath() { local _dev=$1 [ -e /sys/dev/block/$_dev/dm/uuid ] \|\| return 1 [[ $(cat /sys/dev/block/$_dev/dm/uuid) =~ mpath- ]] && return 0 return 1 } majmin_to_mpath_dev() { local _dev for i in /dev/mapper/; do [[ $i == /dev/mapper/control ]] && continue _dev=$(get_maj_min $i) if [ "$_dev" = "$1" ]; then echo $i return fi done } # called by dracut check() { local _rootdev [[ $hostonly ]] \|\| [[ $mount_needs ]] && { for_each_host_dev_and_slaves is_mpath \|\| return 255 } # if there's no multipath binary, no go. require_binaries multipath \|\| return 1 require_binaries kpartx \|\| return 1 return 0 } # called by dracut depends() { echo rootfs-block echo dm return 0 } # called by dracut cmdline() { for m in scsi_dh_alua scsi_dh_emc scsi_dh_rdac dm_multipath; do if grep -m 1 -q "$m" /proc/modules ; then printf 'rd.driver.pre=%s ' "$m" fi done } # called by dracut installkernel() { local _ret local _arch=$(uname -m) local _funcs='scsi_register_device_handler\|dm_dirty_log_type_register\|dm_register_path_selector\|dm_register_target' local _s390 if [ "$_arch" = "s390" -o "$_arch" = "s390x" ]; then _s390drivers="=drivers/s390/scsi" fi hostonly='' dracut_instmods -o -s "$_funcs" "=drivers/scsi" "=drivers/md" ${_s390drivers:+"$_s390drivers"} } # called by dracut install() { local _f _allow add_hostonly_mpath_conf() { is_mpath $1 && { local _dev _dev=$(majmin_to_mpath_dev $1) [ -z "$_dev" ] && return strstr "$_allow" "$_dev" && return _allow="$_allow --allow $_dev" } } inst_multiple -o \ dmsetup \ kpartx \ mpath_wait \ mpathconf \ mpathpersist \ multipath \ multipathd \ xdrgetprio \ xdrgetuid \ /etc/xdrdevices.conf \ /etc/multipath.conf \ /etc/multipath/ \ /etc/multipath/conf.d/* [[ $hostonly ]] && [[ $hostonly_mode = "strict" ]] && { for_each_host_dev_and_slaves_all add_hostonly_mpath_conf [ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf } inst $(command -v partx) /sbin/partx inst_libdir_file "libmultipath" "multipath/" inst_libdir_file 'libgcc_s.so*' if [[ $hostonly_cmdline ]] ; then local _conf=$(cmdline) [[ $_conf ]] && echo "$_conf" >> "${initdir}/etc/cmdline.d/90multipath.conf" fi if dracut_module_included "systemd"; then inst_simple "${moddir}/multipathd-configure.service" "${systemdsystemunitdir}/multipathd-configure.service" inst_simple "${moddir}/multipathd.service" "${systemdsystemunitdir}/multipathd.service" systemctl -q --root "$initdir" enable multipathd-configure.service systemctl -q --root "$initdir" enable multipathd.service else inst_hook pre-trigger 02 "$moddir/multipathd.sh" inst_hook cleanup 02 "$moddir/multipathd-stop.sh" fi inst_hook cleanup 80 "$moddir/multipathd-needshutdown.sh" inst_hook shutdown 20 "$moddir/multipath-shutdown.sh" inst_rules 40-multipath.rules 56-multipath.rules \ 62-multipath.rules 65-multipath.rules \ 66-kpartx.rules 67-kpartx-compat.rules \ 11-dm-mpath.rules 11-dm-parts.rules } Back

Edit File : module-setup.sh | Size : 3.38 KB

#!/bin/bash

is_mpath() {
    local _dev=$1
    [ -e /sys/dev/block/$_dev/dm/uuid ] || return 1
    [[ $(cat /sys/dev/block/$_dev/dm/uuid) =~ mpath- ]] && return 0
    return 1
}

majmin_to_mpath_dev() {
    local _dev
    for i in /dev/mapper/*; do
        [[ $i == /dev/mapper/control ]] && continue
        _dev=$(get_maj_min $i)
        if [ "$_dev" = "$1" ]; then
            echo $i
            return
        fi
    done
}

# called by dracut
check() {
    local _rootdev

[[ $hostonly ]] || [[ $mount_needs ]] && {
        for_each_host_dev_and_slaves is_mpath || return 255
    }

# if there's no multipath binary, no go.
    require_binaries multipath || return 1
    require_binaries kpartx || return 1

return 0
}

# called by dracut
depends() {
    echo rootfs-block
    echo dm
    return 0
}

# called by dracut
cmdline() {
    for m in scsi_dh_alua scsi_dh_emc scsi_dh_rdac dm_multipath; do
        if grep -m 1 -q "$m" /proc/modules ; then
            printf 'rd.driver.pre=%s ' "$m"
        fi
    done
}

# called by dracut
installkernel() {
    local _ret
    local _arch=$(uname -m)
    local _funcs='scsi_register_device_handler|dm_dirty_log_type_register|dm_register_path_selector|dm_register_target'
    local _s390

if [ "$_arch" = "s390" -o "$_arch" = "s390x" ]; then
        _s390drivers="=drivers/s390/scsi"
    fi

hostonly='' dracut_instmods -o -s "$_funcs" "=drivers/scsi" "=drivers/md" ${_s390drivers:+"$_s390drivers"}
}

# called by dracut
install() {
    local _f _allow

add_hostonly_mpath_conf() {
        is_mpath $1 && {
            local _dev

_dev=$(majmin_to_mpath_dev $1)
            [ -z "$_dev" ] && return
            strstr "$_allow" "$_dev" && return
            _allow="$_allow --allow $_dev"
        }
    }

inst_multiple -o  \
        dmsetup \
        kpartx \
        mpath_wait \
        mpathconf \
        mpathpersist \
        multipath  \
        multipathd \
        xdrgetprio \
        xdrgetuid \
        /etc/xdrdevices.conf \
        /etc/multipath.conf \
        /etc/multipath/* \
        /etc/multipath/conf.d/*

[[ $hostonly ]] && [[ $hostonly_mode = "strict" ]] && {
        for_each_host_dev_and_slaves_all add_hostonly_mpath_conf
        [ -n "$_allow" ] && mpathconf $_allow --outfile ${initdir}/etc/multipath.conf
    }

inst $(command -v partx) /sbin/partx

inst_libdir_file "libmultipath*" "multipath/*"
    inst_libdir_file 'libgcc_s.so*'

if [[ $hostonly_cmdline ]] ; then
        local _conf=$(cmdline)
        [[ $_conf ]] && echo "$_conf" >> "${initdir}/etc/cmdline.d/90multipath.conf"
    fi

if dracut_module_included "systemd"; then
        inst_simple "${moddir}/multipathd-configure.service" "${systemdsystemunitdir}/multipathd-configure.service"
        inst_simple "${moddir}/multipathd.service" "${systemdsystemunitdir}/multipathd.service"
        systemctl -q --root "$initdir" enable multipathd-configure.service
        systemctl -q --root "$initdir" enable multipathd.service
    else
        inst_hook pre-trigger 02 "$moddir/multipathd.sh"
        inst_hook cleanup   02 "$moddir/multipathd-stop.sh"
    fi

inst_hook cleanup   80 "$moddir/multipathd-needshutdown.sh"
    inst_hook shutdown  20 "$moddir/multipath-shutdown.sh"

inst_rules 40-multipath.rules 56-multipath.rules \
	62-multipath.rules 65-multipath.rules \
	66-kpartx.rules 67-kpartx-compat.rules \
	11-dm-mpath.rules 11-dm-parts.rules
}

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