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Ubuntu 系统LVM 磁盘扩容 问题 系统磁盘总容量500G，在安装ubuntu系统选择使用LVM作为分区，所以导致现在系统磁盘不够使用排查：查看卷组：查看逻辑卷：ubuntu系统默认不会把所有的存储空间划分给系统，以保证系统安全性，所以保留了一些存储空间，解决方案：从卷组里划分出一些空间给逻辑卷扩容y36@y36-server-ubuntucom:~$ sudo lvextend -L +100G /dev/ubuntu-vg/ubuntu-lv Size of logical volume ubuntu-vg/ubuntu-lv changed from 100.00 GiB (25600 extents) to 200.00 GiB (51200 extents). Logical volume ubuntu-vg/ubuntu-lv successfully resized.刷新逻辑卷y36@y36-server-ubuntucom:~$ sudo resize2fs /dev/ubuntu-vg/ubuntu-lv resize2fs 1.47.0 (5-Feb-2023) Filesystem at /dev/ubuntu-vg/ubuntu-lv is mounted on /; on-line resizing required old_desc_blocks = 13, new_desc_blocks = 25 The filesystem on /dev/ubuntu-vg/ubuntu-lv is now 52428800 (4k) blocks long.查看系统磁盘空间y36@y36-server-ubuntucom:~$ df -h Filesystem Size Used Avail Use% Mounted on tmpfs 3.2G 1.9M 3.2G 1% /run /dev/mapper/ubuntu--vg-ubuntu--lv 197G 81G 108G 43% / tmpfs 16G 0 16G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 16G 0 16G 0% /run/qemu /dev/sda1 2.0G 243M 1.6G 14% /boot tmpfs 3.2G 4.0K 3.2G 1% /run/user/1000
