2023-05-03 22:22:21 +08:00
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#!/bin/bash
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PATH="/usr/sbin:/usr/bin"
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update_part() {
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partprobe
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partx -u $1
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udevadm settle
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}
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# rh 自带 fdisk parted
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# ubuntu 自带 fdisk growpart
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# 找出主硬盘
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xda=$(lsblk -dn -o NAME | grep -E 'nvme0n1|.da')
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# 删除 installer 分区
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installer_num=$(readlink -f /dev/disk/by-label/installer | grep -o '[0-9]*$')
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if [ -n "$installer_num" ]; then
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# 要添加 LC_NUMERIC 或者将%转义成\%才能在cron里正确运行
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2023-05-04 20:35:18 +08:00
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# locale -a 不一定有"en_US.UTF-8"，但肯定有"C.UTF-8"
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LC_NUMERIC="C.UTF-8"
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2023-05-03 22:22:21 +08:00
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printf "d\n%s\nw" "$installer_num" | fdisk /dev/$xda
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update_part /dev/$xda
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fi
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# 找出现在的最后一个分区，也就是系统分区
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# el7 的 lsblk 没有 --sort，所以用其他方法
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# shellcheck disable=2012
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part_num=$(ls -1v /dev/$xda* | tail -1 | grep -o '[0-9]*$')
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part_fstype=$(lsblk -no FSTYPE /dev/$xda$part_num)
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# 扩容分区
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# rh 7 不能用parted在线扩容，而fdisk扩容会改变 PARTUUID，所以用 growpart
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# printf 'yes\n100%%' | parted /dev/$xda resizepart $part_num ---pretend-input-tty
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growpart /dev/$xda $part_num
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update_part /dev/$xda
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# 扩容最后一个分区的文件系统
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case $part_fstype in
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xfs) xfs_growfs / ;;
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ext*) resize2fs /dev/$xda$part_num ;;
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esac
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# 删除脚本自身
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rm -f /resize.sh /etc/cron.d/resize
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