vault backup: 2026-11-07 16:33:44
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硬盘大小120G,安装系统时选择了自动分区,结果进系统后发现有个/backup挂载点占了40G的空间,于是准备把这个挂载点删除,把空出来的40G分给根。
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开始操作
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1、查看[逻辑卷](https://so.csdn.net/so/search?q=%E9%80%BB%E8%BE%91%E5%8D%B7&spm=1001.2101.3001.7020)
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> lvdisplay
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2、删除挂载到/backup的逻辑卷
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> lvremovo /dev/mapper/klas-backup
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3、把空闲出来的存储空间加到/下
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> lvextend -L +40G /dev/mapper/klas-root
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4、执行调整,使之生效
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> xfs_growfs /
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注意最后一步xfs_growfs后面跟的是挂载点,不是设备名。
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