70 lines
2.0 KiB
Bash
70 lines
2.0 KiB
Bash
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#!/bin/bash
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# Copyright (c) 2016 Red Hat, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Author: Lin Li <lilin@redhat.com>
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source ../include/ec.sh || exit 200
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function gpt_partitioned_dev() {
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local dev=$1
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{ for i in {1..4}; do
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echo -e "n\n\n\n+1M\n\n"
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done; echo w; echo y; } | gdisk $dev &> /dev/null
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}
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function extract_section_info_from_gdisk() {
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local dev=$1
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local node=$(basename $dev)
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gdisk -l $dev | awk -v dev=$node 'start==1{print dev $1,$2,$3};/Number/{start=1}'
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}
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function extract_section_info_from_kpartx() {
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local dev=$1
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kpartx -l $dev | awk '{ print $1, $NF, $NF+$4-1 }'
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}
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tlog "running $0"
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rpm -q device-mapper-multipath || yum install -y device-mapper-multipath
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rpm -q gdisk || yum install -y gdisk
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# eliminate the possibility multipathd create device for new path
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trun "service multipathd stop"
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# create a device with 4k physical sector
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trun "modprobe -r scsi_debug"
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trun "modprobe scsi_debug sector_size=512 physblk_exp=3 &> /dev/null"
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scsi_debug_dev=$(get_scsi_debug_devices)
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trun "gpt_partitioned_dev $scsi_debug_dev"
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sleep 3
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trun "extract_section_info_from_gdisk $scsi_debug_dev"
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result_of_gdisk=$tSTDOUT
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trun "extract_section_info_from_kpartx $scsi_debug_dev"
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result_of_kpartx=$tSTDOUT
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tlog "result_of_kpartx=$result_of_kpartx"
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tlog "result_of_gdisk=$result_of_gdisk"
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tok '[[ "$result_of_kpartx" == "$result_of_gdisk" ]]'
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sleep 3
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trun "modprobe -r scsi_debug"
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tend
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