mirror of
https://github.com/bin456789/reinstall.git
synced 2025-01-18 20:39:14 +08:00
61 lines
1.7 KiB
Bash
61 lines
1.7 KiB
Bash
#!/bin/bash
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PATH="/usr/sbin:/usr/bin"
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update_part() {
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partx -u "$1"
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udevadm trigger
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udevadm settle
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}
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# el 自带 fdisk parted (el7的part不支持在线扩容)
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# ubuntu 自带 fdisk growpart
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# 删除分区用
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# el/ubuntu fdisk
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# 扩容分区用
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# el7 grownparted 额外安装
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# el8/9/fedora parted
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# ubuntu grownpart
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# 找出主硬盘
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root_drive=$(mount | awk '$3=="/" {print $1}')
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xda=$(lsblk -r --inverse "$root_drive" | grep -w disk | awk '{print $1}')
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# 删除 installer 分区
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installer_num=$(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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# 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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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"*"$part_num")
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# 扩容分区
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# ubuntu 和 el7 用 growpart，其他用 parted
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# el7 不能用parted在线扩容，而fdisk扩容会改变 PARTUUID，所以用 growpart
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if grep -E -i 'centos:7|ubuntu' /etc/os-release; then
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growpart "/dev/$xda" "$part_num"
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else
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printf 'yes\n100%%' | parted "/dev/$xda" resizepart "$part_num" ---pretend-input-tty
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fi
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update_part "/dev/$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"*"$part_num" ;;
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btrfs) btrfs filesystem resize max / ;;
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esac
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update_part "/dev/$xda"
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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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