awsdiskexpendhowto

就问一句&＃xff0c;怎么破&＃xff5e;

找到了&＃xff0c;如果是跟分区&＃xff0c;就看这个　http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/storage_expand_partition.html　&＃xff0c;　如果是其他分区不是根分区的就简单了。

#!/bin/sh
# Copyright (C) 2011 Canonical Ltd.
# Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
#
# Authors: Scott Moser
# Juerg Haefliger
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .# the fudge factor. if its within this many 512 byte sectors, dont bother
FUDGE&＃61;${GROWPART_FUDGE:-$((20*1024))}
TEMP_D&＃61;""
RESTORE_FUNC&＃61;""
RESTORE_HUMAN&＃61;""
VERBOSITY&＃61;0
DISK&＃61;""
PART&＃61;""
PT_UPDATE&＃61;false
DRY_RUN&＃61;0MBR_CHS&＃61;""
MBR_BACKUP&＃61;""
GPT_BACKUP&＃61;""
_capture&＃61;""error() {echo "$&＃64;" 1>&2
}fail() {[ $# -eq 0 ] || echo "FAILED:" "$&＃64;"exit 2
}nochange() {echo "NOCHANGE:" "$&＃64;"exit 1
}changed() {echo "CHANGED:" "$&＃64;"exit 0
}change() {echo "CHANGE:" "$&＃64;"exit 0
}cleanup() {if [ -n "${RESTORE_FUNC}" ]; thenerror "***** WARNING: Resize failed, attempting to revert ******"if ${RESTORE_FUNC} ; thenerror "***** Appears to have gone OK ****"elseerror "***** FAILED! or original partition table" \"looked like: ****"cat "${RESTORE_HUMAN}" 1>&2fifi[ -z "${TEMP_D}" -o ! -d "${TEMP_D}" ] || rm -Rf "${TEMP_D}"
}debug() {local level&＃61;${1}shift[ "${level}" -gt "${VERBOSITY}" ] && returnif [ "${DEBUG_LOG}" ]; thenecho "$&＃64;" >>"${DEBUG_LOG}"elseerror "$&＃64;"fi
}debugcat() {local level&＃61;"$1"shift;[ "${level}" -gt "$VERBOSITY" ] && returnif [ "${DEBUG_LOG}" ]; thencat "$&＃64;" >>"${DEBUG_LOG}"elsecat "$&＃64;" 1>&2fi
}mktemp_d() {# just a mktemp -d that doens&＃39;t need mktemp if its not there._RET&＃61;$(mktemp -d "${TMPDIR:-/tmp}/${0##*/}.XXXXXX" 2>/dev/null) &&return_RET&＃61;$(umask 077 && t&＃61;"${TMPDIR:-/tmp}/${0##*/}.$$" &&mkdir "${t}" && echo "${t}")return
}Usage() {cat <${0##*/} disk partitionrewrite partition table so that partition takes up all the space it canoptions:-h | --help print Usage and exit--fudge F if part could be resized, but change would beless than &＃39;F&＃39;, do not resize (default: ${FUDGE})-N | --dry-run only report what would be done, show new &＃39;sfdisk -d&＃39;-v | --verbose increase verbosity / debug-u | --update R update the the kernel partition table info after growingthis requires kernel support and &＃39;partx --update&＃39;R is one of:- &＃39;auto&＃39; : [default] update partition if possible- &＃39;force&＃39; : try despite sanity checks (fail on failure)- &＃39;off&＃39; : do not attempt- &＃39;on&＃39; : fail if sanity checks indicate no supportExample:- ${0##*/} /dev/sda 1Resize partition 1 on /dev/sda
EOF
}bad_Usage() {Usage 1>&2error "$&＃64;"exit 2
}mbr_restore() {sfdisk --no-reread "${DISK}" ${MBR_CHS} -I "${MBR_BACKUP}"
}sfdisk_worked_but_blkrrpart_failed() {local ret&＃61;"$1" output&＃61;"$2"# exit code found was just 1, but dont insist on that#[ $ret -eq 1 ] || return 1# Successfully wrote the new partition tablegrep -qi "Success.* wrote.* new.* partition" "$output" &&grep -qi "BLKRRPART: Device or resource busy" "$output"return
}mbr_resize() {RESTORE_HUMAN&＃61;"${TEMP_D}/recovery"MBR_BACKUP&＃61;"${TEMP_D}/orig.save"local change_out&＃61;${TEMP_D}/change.outlocal dump_out&＃61;${TEMP_D}/dump.outlocal new_out&＃61;${TEMP_D}/new.outlocal dump_mod&＃61;${TEMP_D}/dump.modlocal tmp&＃61;"${TEMP_D}/tmp.out"local err&＃61;"${TEMP_D}/err.out"local _devc cyl _w1 heads _w2 sectors _w3 tot dpartlocal pt_start pt_size pt_end max_end new_size change_info# --show-pt-geometry outputs something like# /dev/sda: 164352 cylinders, 4 heads, 32 sectors/trackrqe sfd_geom sfdisk "${DISK}" --show-pt-geometry >"${tmp}" &&read _devc cyl _w1 heads _w2 sectors _w3 <"${tmp}" &&MBR_CHS&＃61;"-C ${cyl} -H ${heads} -S ${sectors}" ||fail "failed to get CHS from ${DISK}"tot&＃61;$((${cyl}*${heads}*${sectors}))debug 1 "geometry is ${MBR_CHS}. total size&＃61;${tot}"rqe sfd_dump sfdisk ${MBR_CHS} --unit&＃61;S --dump "${DISK}" \>"${dump_out}" ||fail "failed to dump sfdisk info for ${DISK}"{echo "## sfdisk ${MBR_CHS} --unit&＃61;S --dump ${DISK}"cat "${dump_out}"} >"${RESTORE_HUMAN}"[ $? -eq 0 ] || fail "failed to save sfdisk -d output"debugcat 1 "${RESTORE_HUMAN}"sed -e &＃39;s/,//g; s/start&＃61;/start /; s/size&＃61;/size /&＃39; "${dump_out}" \>"${dump_mod}" ||fail "sed failed on dump output"dpart&＃61;"${DISK}${PART}" # disk and partition numberif [ -b "${DISK}p${PART}" -a "${DISK%[0-9]}" !&＃61; "${DISK}" ]; then# for block devices that end in a number (/dev/nbd0)# the partition is "p" (/dev/nbd0p1)dpart&＃61;"${DISK}p${PART}"elif [ "${DISK#/dev/loop[0-9]}" !&＃61; "${DISK}" ]; then# for /dev/loop devices, sfdisk output will be p# format also, even though there is not a device there.dpart&＃61;"${DISK}p${PART}"fipt_start&＃61;$(awk &＃39;$1 &＃61;&＃61; pt { print $4 }&＃39; "pt&＃61;${dpart}" <"${dump_mod}") &&pt_size&＃61;$(awk &＃39;$1 &＃61;&＃61; pt { print $6 }&＃39; "pt&＃61;${dpart}" <"${dump_mod}") &&[ -n "${pt_start}" -a -n "${pt_size}" ] &&pt_end&＃61;$((${pt_size}&＃43;${pt_start})) ||fail "failed to get start and end for ${dpart} in ${DISK}"# find the minimal starting location that is >&＃61; pt_end max_end&＃61;$(awk &＃39;$3 &＃61;&＃61; "start" { if($4 >&＃61; pt_end && $4 \min&＃61;${tot} pt_end&＃61;${pt_end} "${dump_mod}") &&[ -n "${max_end}" ] ||fail "failed to get max_end for partition ${PART}"debug 1 "max_end&＃61;${max_end} tot&＃61;${tot} pt_end&＃61;${pt_end}" \"pt_start&＃61;${pt_start} pt_size&＃61;${pt_size}"[ $((${pt_end})) -eq ${max_end} ] &&nochange "partition ${PART} is size ${pt_size}. it cannot be grown"[ $((${pt_end}&＃43;${FUDGE})) -gt ${max_end} ] &&nochange "partition ${PART} could only be grown by" \"$((${max_end}-${pt_end})) [fudge&＃61;${FUDGE}]"# now, change the size for this partition in ${dump_out} to be the# new sizenew_size&＃61;$((${max_end}-${pt_start}))sed "\|^\s*${dpart} |s/${pt_size},/${new_size},/" "${dump_out}" \>"${new_out}" ||fail "failed to change size in output"change_info&＃61;"partition&＃61;${PART} start&＃61;${pt_start} old: size&＃61;${pt_size} end&＃61;${pt_end} new: size&＃61;${new_size},end&＃61;${max_end}"if [ ${DRY_RUN} -ne 0 ]; thenecho "CHANGE: ${change_info}"{echo "# &＃61;&＃61;&＃61; old sfdisk -d &＃61;&＃61;&＃61;"cat "${dump_out}"echo "# &＃61;&＃61;&＃61; new sfdisk -d &＃61;&＃61;&＃61;"cat "${new_out}"} 1>&2exit 0fiLANG&＃61;C sfdisk --no-reread "${DISK}" ${MBR_CHS} --force \-O "${MBR_BACKUP}" <"${new_out}" >"${change_out}" 2>&1ret&＃61;$?[ $ret -eq 0 ] || RESTORE_FUNC&＃61;"mbr_restore"if [ $ret -eq 0 ]; then:elif $PT_UPDATE &&sfdisk_worked_but_blkrrpart_failed "$ret" "${change_out}"; then# if the command failed, but it looks like only because# the device was busy and we have pt_update, then go ondebug 1 "sfdisk failed, but likely only because of blkrrpart"elseerror "attempt to resize ${DISK} failed. sfdisk output below:"sed &＃39;s,^,| ,&＃39; "${change_out}" 1>&2fail "failed to resize"firq pt_update pt_update "$DISK" "$PART" ||fail "pt_resize failed"RESTORE_FUNC&＃61;""changed "${change_info}"# dump_out looks something like:## partition table of /tmp/out.img#unit: sectors##/tmp/out.img1 : start&＃61; 1, size&＃61; 48194, Id&＃61;83#/tmp/out.img2 : start&＃61; 48195, size&＃61; 963900, Id&＃61;83#/tmp/out.img3 : start&＃61; 1012095, size&＃61; 305235, Id&＃61;82#/tmp/out.img4 : start&＃61; 1317330, size&＃61; 771120, Id&＃61; 5#/tmp/out.img5 : start&＃61; 1317331, size&＃61; 642599, Id&＃61;83#/tmp/out.img6 : start&＃61; 1959931, size&＃61; 48194, Id&＃61;83#/tmp/out.img7 : start&＃61; 2008126, size&＃61; 80324, Id&＃61;83
}gpt_restore() {sgdisk -l "${GPT_BACKUP}" "${DISK}"
}gpt_resize() {GPT_BACKUP&＃61;"${TEMP_D}/pt.backup"local pt_info&＃61;"${TEMP_D}/pt.info"local pt_pretend&＃61;"${TEMP_D}/pt.pretend"local pt_data&＃61;"${TEMP_D}/pt.data"local out&＃61;"${TEMP_D}/out"local dev&＃61;"disk&＃61;${DISK} partition&＃61;${PART}"local pt_start pt_end pt_size last pt_max code guid name new_sizelocal old new change_info# Dump the original partition information and details to disk. This is# used in case something goes wrong and human interaction is required# to revert any changes.rqe sgd_info sgdisk "--info&＃61;${PART}" --print "${DISK}" >"${pt_info}" ||RESTORE_HUMAN&＃61;"${pt_info}"debug 1 "$dev: original sgdisk info:"debugcat 1 "${pt_info}"# Pretend to move the backup GPT header to the end of the disk and dump# the resulting partition information. We use this info to determine if# we have to resize the partition.rqe sgd_pretend sgdisk --pretend --move-second-header \--print "${DISK}" >"${pt_pretend}" ||fail "${dev}: failed to dump pretend sgdisk info"debug 1 "$dev: pretend sgdisk info"debugcat 1 "${pt_pretend}"# Extract the partition data from the pretend dumpawk &＃39;found { print } ; $1 &＃61;&＃61; "Number" { found &＃61; 1 }&＃39; \"${pt_pretend}" >"${pt_data}" ||fail "${dev}: failed to parse pretend sgdisk info"# Get the start and end sectors of the partition to be grownpt_start&＃61;$(awk &＃39;$1 &＃61;&＃61; &＃39;"${PART}"&＃39; { print $2 }&＃39; "${pt_data}") &&[ -n "${pt_start}" ] ||fail "${dev}: failed to get start sector"pt_end&＃61;$(awk &＃39;$1 &＃61;&＃61; &＃39;"${PART}"&＃39; { print $3 }&＃39; "${pt_data}") &&[ -n "${pt_end}" ] ||fail "${dev}: failed to get end sector"pt_size&＃61;"$((${pt_end} - ${pt_start}))"# Get the last usable sectorlast&＃61;$(awk &＃39;/last usable sector is/ { print $NF }&＃39; \"${pt_pretend}") && [ -n "${last}" ] ||fail "${dev}: failed to get last usable sector"# Find the minimal start sector that is >&＃61; pt_end pt_max&＃61;$(awk &＃39;{ if ($2 >&＃61; pt_end && $2 min&＃61;"${last}" pt_end&＃61;"${pt_end}" \"${pt_data}") && [ -n "${pt_max}" ] ||fail "${dev}: failed to find max end sector"debug 1 "${dev}: pt_start&＃61;${pt_start} pt_end&＃61;${pt_end}" \"pt_size&＃61;${pt_size} pt_max&＃61;${pt_max} last&＃61;${last}"# Check if the partition can be grown[ "${pt_end}" -eq "${pt_max}" ] &&nochange "${dev}: size&＃61;${pt_size}, it cannot be grown"[ "$((${pt_end} &＃43; ${FUDGE}))" -gt "${pt_max}" ] &&nochange "${dev}: could only be grown by" \"$((${pt_max} - ${pt_end})) [fudge&＃61;${FUDGE}]"# The partition can be grown if we made it here. Get some more info# about it so we can do it properly.# FIXME: Do we care about the attribute flags?code&＃61;$(awk &＃39;/^Partition GUID code:/ { print $4 }&＃39; "${pt_info}")guid&＃61;$(awk &＃39;/^Partition unique GUID:/ { print $4 }&＃39; "${pt_info}")name&＃61;$(awk &＃39;/^Partition name:/ { gsub(/&＃39;"&＃39;"&＃39;/, "") ; \if (NF >&＃61; 3) print substr($0, index($0, $3)) }&＃39; "${pt_info}")[ -n "${code}" -a -n "${guid}" ] ||fail "${dev}: failed to parse sgdisk details"debug 1 "${dev}: code&＃61;${code} guid&＃61;${guid} name&＃61;&＃39;${name}&＃39;"# Calculate the new size of the partitionnew_size&＃61;$((${pt_max} - ${pt_start}))old&＃61;"old: size&＃61;${pt_size},end&＃61;${pt_end}"new&＃61;"new: size&＃61;${new_size},end&＃61;${pt_max}"change_info&＃61;"${dev}: start&＃61;${pt_start} ${old} ${new}"# Dry run[ "${DRY_RUN}" -ne 0 ] && change "${change_info}"# Backup the current partition table, we&＃39;re about to modify itrq sgd_backup sgdisk "--backup&＃61;${GPT_BACKUP}" "${DISK}" ||fail "${dev}: failed to backup the partition table"# Modify the partition table. We do it all in one go (the order is# important!):# - move the GPT backup header to the end of the disk# - delete the partition# - recreate the partition with the new size# - set the partition code# - set the partition GUID# - set the partition namerq sgdisk_mod sgdisk --move-second-header "--delete&＃61;${PART}" \"--new&＃61;${PART}:${pt_start}:${pt_max}" \"--typecode&＃61;${PART}:${code}" \"--partition-guid&＃61;${PART}:${guid}" \"--change-name&＃61;${PART}:${name}" "${DISK}" &&rq pt_update pt_update "$DISK" "$PART" || {RESTORE_FUNC&＃61;gpt_restorefail "${dev}: failed to repartition"}changed "${change_info}"
}kver_to_num() {local kver&＃61;"$1" maj&＃61;"" min&＃61;"" mic&＃61;"0"kver&＃61;${kver%%-*}maj&＃61;${kver%%.*}min&＃61;${kver#${maj}.}min&＃61;${min%%.*}mic&＃61;${kver#${maj}.${min}.}[ "$kver" &＃61; "$mic" ] && mic&＃61;0_RET&＃61;$(($maj*1000*1000&＃43;$min*1000&＃43;$mic))
}kver_cmp() {local op&＃61;"$2" n1&＃61;"" n2&＃61;""kver_to_num "$1"n1&＃61;"$_RET"kver_to_num "$3"n2&＃61;"$_RET"[ $n1 $op $n2 ]
}rq() {# runquieterror(label, command)# gobble stderr of a command unless it errorslocal label&＃61;"$1" ret&＃61;"" efile&＃61;""efile&＃61;"$TEMP_D/$label.err"shift;debug 2 "running[$label][$_capture]" "$&＃64;"if [ "${_capture}" &＃61; "erronly" ]; then"$&＃64;" 2>"$TEMP_D/$label.err"ret&＃61;$?else"$&＃64;" >"$TEMP_D/$label.err" 2>&1ret&＃61;$?fiif [ $ret -ne 0 ]; thenerror "failed [$label:$ret]" "$&＃64;"cat "$efile" 1>&2fireturn $ret
}rqe() {local _capture&＃61;"erronly"rq "$&＃64;"
}verify_ptupdate() {local input&＃61;"$1" found&＃61;"" reason&＃61;"" kver&＃61;""# we can always satisfy &＃39;off&＃39;if [ "$input" &＃61; "off" ]; then_RET&＃61;"false";return 0;fiif command -v partx >/dev/null 2>&1; thenpartx --help 2>/dev/null | grep -q -- --update || {reason&＃61;"partx has no &＃39;--update&＃39; flag in usage."found&＃61;"off"}elsereason&＃61;"no &＃39;partx&＃39; command"found&＃61;"off"fiif [ -z "$found" ]; thenif [ "$(uname)" !&＃61; "Linux" ]; thenreason&＃61;"Kernel is not Linux per uname."found&＃61;"off"fifiif [ -z "$found" ]; thenkver&＃61;$(uname -r) || debug 1 "uname -r failed!"if ! kver_cmp "${kver-0.0.0}" -ge 3.8.0; thenreason&＃61;"Kernel &＃39;$kver&＃39; <3.8.0."found&＃61;"off"fifiif [ -z "$found" ]; then_RET&＃61;"true"return 0ficase "$input" inon) error "$reason"; return 1;;auto)_RET&＃61;"false";debug 1 "partition update disabled: $reason"return 0;;force)_RET&＃61;"true"error "WARNING: ptupdate forced on even though: $reason"return 0;;esacerror "unknown input &＃39;$input&＃39;";return 1;
}pt_update() {local dev&＃61;"$1" part&＃61;"$2" update&＃61;"${3:-$PT_UPDATE}"if ! $update; thenreturn 0fipartx --update "$part" "$dev"
}has_cmd() {command -v "${1}" >/dev/null 2>&1
}pt_update&＃61;"auto"
while [ $# -ne 0 ]; docur&＃61;${1}next&＃61;${2}case "$cur" in-h|--help)Usageexit 0;;--fudge)FUDGE&＃61;${next}shift;;-N|--dry-run)DRY_RUN&＃61;1;;-u|--update|--update&＃61;*)if [ "${cur#--update&＃61;}" !&＃61; "$cur" ]; thennext&＃61;"${cur#--update&＃61;}"elseshiftficase "$next" inoff|auto|force|on) pt_update&＃61;$next;;*) fail "unknown --update option: $next";;esac;;-v|--verbose)VERBOSITY&＃61;$(($VERBOSITY&＃43;1));;--)shiftbreak;;-*)fail "unknown option ${cur}";;*)if [ -z "${DISK}" ]; thenDISK&＃61;${cur}else[ -z "${PART}" ] || fail "confused by arg ${cur}"PART&＃61;${cur}fi;;esacshift
done[ -n "${DISK}" ] || bad_Usage "must supply disk and partition-number"
[ -n "${PART}" ] || bad_Usage "must supply partition-number"has_cmd "sfdisk" || fail "sfdisk not found"[ -e "${DISK}" ] || fail "${DISK}: does not exist"[ "${PART#*[!0-9]}" &＃61; "${PART}" ] || fail "partition-number must be a number"verify_ptupdate "$pt_update" || fail
PT_UPDATE&＃61;$_RETdebug 1 "update-partition set to $PT_UPDATE"mktemp_d && TEMP_D&＃61;"${_RET}" || fail "failed to make temp dir"
trap cleanup EXIT# get the ID of the first partition to determine if it&＃39;s MBR or GPT
id&＃61;$(sfdisk --id --force "${DISK}" 1 2>/dev/null) ||fail "unable to determine partition type"if [ "${id}" &＃61; "ee" ] ; thenhas_cmd "sgdisk" || fail "GPT partition found but no sgdisk"debug 1 "found GPT partition table (id &＃61; ${id})"gpt_resize
elsedebug 1 "found MBR partition table (id &＃61; ${id})"mbr_resize
fi# vi: ts&＃61;4 noexpandtab


也可以从 http://ojv12llai.bkt.clouddn.com/uploads/20170217171332.sh 这里进行下载

执行命令

bash xx.sh /dev/xvda 1

yum install -y parted
partprobe # 如果不行&＃xff0c;只能重启了