100 lines
2.6 KiB
Bash
100 lines
2.6 KiB
Bash
#!/bin/bash
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# vda 252:0 0 500G 0 disk
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# ├─vda1 252:1 0 1G 0 part /boot
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# └─vda2 252:2 0 119G 0 part
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# ├─klas-root 253:0 0 74.7G 0 lvm /
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# ├─klas-swap 253:1 0 7.9G 0 lvm
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# └─klas-backup 253:2 0 36.4G 0 lvm
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# 系统的磁盘划分为上图所示，请给出shell命令实现如下的功能
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# 1. 关闭/dev/klas/swap /dev/klas/backup 将vda2的磁空间全部分给/dev/klas/root
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# 2. 将vda的剩余空间创建 /vda3 分区, 创建 pv /dev/vda3
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# 3. 在pv /dev/vda3上创建 vg datavg，大小为全部空间
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# 4. 在vg datavg上创建lv docklv，大小为全部空间
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# 5. 将lv docklv格式化为xfs格式
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# 6. 将lv docklv挂载到 /var/lib/docker
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# 7. 将lv docklv的挂载点设置为永久挂载
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# 1. 关闭/dev/klas/swap 和 /dev/klas/backup，将vda2的空间全部分给/dev/klas/root
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swapoff /dev/klas/swap
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lvremove /dev/klas/swap
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# lvremove /dev/klas/backup
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lvextend -l +100%FREE /dev/klas/root
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xfs_growfs /dev/klas/root
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# 2. 将vda的剩余空间创建 /vda3 分区, 创建 pv /dev/vda3
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if ! lsblk | grep -q vdb; then
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echo "/dev/vdb does not exist, skipping partition creation"
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exit 0
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fi
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# 1. 调整磁盘 /dev/vdb 的分区表为 GPT 格式
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echo yes | parted /dev/vdb mklabel gpt
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echo "/dev/vdb exists, starting to partition creation"
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echo "n
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p
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t
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8e
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w
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" | fdisk /dev/vdb
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partprobe
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pvcreate /dev/vdb1
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# 3. 在pv /dev/vdb1上创建 vg datavg，大小为全部空间
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vgcreate datavg /dev/vdb1
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# 4. 在vg datavg上创建lv docklv，大小为全部空间
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lvcreate -l 100%FREE -n docklv datavg
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# 5. 将lv docklv格式化为xfs格式
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mkfs.xfs /dev/datavg/docklv
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# 6. 将lv docklv挂载到 /var/lib/docker
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mkdir -p /var/lib/docker
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mount /dev/datavg/docklv /var/lib/docker
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# 7. 将lv docklv的挂载点设置为永久挂载
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echo "/dev/datavg/docklv /var/lib/docker xfs defaults 0 0" >> /etc/fstab
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echo ""
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df -TH
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echo ""
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lsblk
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echo ""
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# 特殊大于2T的磁盘
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请写shell命令实现如下的功能
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1 请调整磁盘/vda的分区表为GPT格式
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2 然后将磁盘剩余空间扩容给/dev/vda3的分区
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3 然后扩容在vg datavg
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4 然后扩容 将lv docklv
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# 1. 调整磁盘 /dev/vda 的分区表为 GPT 格式
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parted /dev/vda mklabel gpt
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# 2. 将磁盘剩余空间扩容给 /dev/vda3 的分区
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parted /dev/vda resizepart 3 100%
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# 3. 扩容 vg datavg
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pvresize /dev/vda3
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# 4. 扩容 lv docklv
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lvextend -l +100%FREE /dev/datavg/docklv
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resize2fs /dev/datavg/docklv
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# 写shell命令，实现如下的功能
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删除 /etc/fstab中以 /dev/mapper/klas-backup 和 /dev/mapper/klas-swap 开头的行
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sed -i '/^\/dev\/mapper\/klas-\(backup\|swap\)/d' /etc/fstab |