# 删掉/home为/扩容 很不幸，我的server空间满了。我没有存储空间了。 我发现装机的时候给/home了100g，都没怎么用。那就给/用吧。 本机系统为`openEuler 24.03Lts`，如您的机器为其它操作系统，请灵活参考。 先看看挂载状态 ```bash! sudo df -h 文件系统 容量 已用 可用 已用% 挂载点 devtmpfs 4.0M 0 4.0M 0% /dev tmpfs 47G 16K 47G 1% /dev/shm tmpfs 19G 861M 18G 5% /run tmpfs 4.0M 0 4.0M 0% /sys/fs/cgroup /dev/mapper/openeuler-root 308G 238G 54G 82% / tmpfs 47G 55M 47G 1% /tmp /dev/sda2 974M 217M 690M 24% /boot /dev/sda1 599M 6.5M 593M 2% /boot/efi /dev/mapper/openeuler-home 98G 8.6G 85G 10% /home overlay 308G 238G 54G 82% /var/lib/docker/overlay2/f80eb895c0d61a22e233fa98398323a5cd022c073be1fc8e74c87ea74375163b/merged shm 1.0G 421M 604M 42% /var/lib/docker/containers/c3379fd442c0a75604a951e276efbab4c5a987b27b51b17854fe076a13cdedf9/mounts/shm tmpfs 9.3G 2.4M 9.3G 1% /run/user/0 overlay 308G 238G 54G 82% /var/lib/docker/overlay2/49f78753cff39c34e3121d091f393183d6e3afa6a5aa6490f7261c2950de5332/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/714c93f64204ae814ddcf2b430de7d386e67136a21e0cc7f603646a2c554a50c/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/eac0e52bc609d26cc613b5cc22dd698c2753657ea3cb09ef4cbf765b4122edb1/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/2b4d23a179ba4e73a82d227b9b5e8b892c599a21f77c68364a756f549f327674/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/dd0f1f8581e6499857700e253a82d3a7cc5bb7b11a48389746e730bc29187aea/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/8b60ebf7a3c0aa13a14a1727157f58931c4e3e0cc429bfcb0b64f2c1047a6dbb/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/1c113f09268de62f70273ee02f9f805f62edbd9911885b1353f6aca0425dad5e/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/f7f07e459a3de16513866deb7f7ff4fdfe9225547b069e95010b8f9c4638a952/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/40a1da14824c2202da3ae5b3bfefd047e0ca60a720feeb26993dfdf27ae4ffcb/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/947596aef10cd92ab248184f0f19cb8949735f0e733456c84e82771b8d0b3a1a/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/14efe5248c9370e2253dd4636d34c5f8e2dc41d0272c9f857f8b59dc09f75385/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/05b3e3bc71f0b3c3ffaba366d0c97cd73148b487c1c095275244e2816ca3c8d1/merged overlay 308G 238G 54G 82% /var/lib/docker/overlay2/acc4a4ec0ea4e9e356149de7c06e201d32af3bd5d0d0ec38f7734b44471fdb71/merged ``` ## 备份home ``` mkdir -p /root/home_bak rsync -avh --progress /home/ /root/home_bak/ ``` ## 删除home 查看/home的占用 ``` fuser -vm /home 用户 进程号 权限 命令 /home: root kernel mount /home root 4152 F..e. java natfrp 975091 ...e. natfrp-service natfrp 979877 ...e. frpc root 1439851 F.ce. java root 1441168 F.ce. java root 1651774 F.ce. java root 1652123 ..c.. soffice.bin root 1652226 ..c.. soffice.bin root 1693143 F.ce. java root 2089643 F.ce. java ``` 占用的还挺多的 解除占用 ``` fuser -km /home ``` 卸载 ``` umount /home ``` 彻底移除 ``` lvremove /dev/mapper/openeuler-home File descriptor 19 (/root/.cursor-server/data/logs/20250608T134038/ptyhost.log) leaked on lvremove invocation. Parent PID 3399681: /bin/bash File descriptor 22 (/root/.cursor-server/data/logs/20250608T134038/remoteagent.log) leaked on lvremove invocation. Parent PID 3399681: /bin/bash File descriptor 24 (/dev/ptmx) leaked on lvremove invocation. Parent PID 3399681: /bin/bash File descriptor 25 (/dev/ptmx) leaked on lvremove invocation. Parent PID 3399681: /bin/bash Do you really want to remove active logical volume openeuler/home? [y/n]: y Logical volume "home" successfully removed. ``` ## 扩容 ``` lvextend -l +100%FREE /dev/mapper/openeuler-root File descriptor 19 (/root/.cursor-server/data/logs/20250608T134038/ptyhost.log) leaked on lvextend invocation. Parent PID 3399681: /bin/bash File descriptor 22 (/root/.cursor-server/data/logs/20250608T134038/remoteagent.log) leaked on lvextend invocation. Parent PID 3399681: /bin/bash File descriptor 24 (/dev/ptmx) leaked on lvextend invocation. Parent PID 3399681: /bin/bash File descriptor 25 (/dev/ptmx) leaked on lvextend invocation. Parent PID 3399681: /bin/bash Size of logical volume openeuler/root changed from 313.00 GiB (80128 extents) to 413.00 GiB (105728 extents). Logical volume openeuler/root successfully resized. ``` ``` lsblk -f NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS sda ├─sda1 vfat FAT32 4C4C-3E0C 592.3M 1% /boot/efi ├─sda2 ext4 1.0 1301dcb7-5c02-448d-8ab9-351282efea34 689.7M 22% /boot └─sda3 LVM2_member LVM2 001 FYmI3w-INHw-UBkk-dnht-LOON-IrR5-RAHnwJ ├─openeuler-root ext4 1.0 4a5fe334-965f-45a9-91d9-4af4e589fa4e 53.5G 77% / └─openeuler-swap swap 1 d48ac596-1941-4691-b4c6-6c4c27119481 [SWAP] ``` 文件系统格式是ext4 ``` resize2fs /dev/mapper/openeuler-root resize2fs 1.46.4 (18-Aug-2021) /dev/mapper/openeuler-root 上的文件系统已被挂载于 /；需要进行在线调整大小 old_desc_blocks = 40, new_desc_blocks = 52 /dev/mapper/openeuler-root 上的文件系统现在为 108265472 个块（每块 4k）。 ``` 看看扩容上没 ``` df -h / 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/openeuler-root 406G 238G 148G 62% / ``` 扩容成功了 ## 恢复数据 创建/home,并复制备份文件过来 ``` mkdir /home rsync -avh /root/home_bak/ /home/ ``` 验证下恢复状况 ``` ls -l /home du -sh /home ``` 如果输出没问题，那就对了 删除备份 ``` rm -rf /root/home_bak ``` ## 持久化 去看看fstab,删除多余的home挂载 ``` nano /etc/fstab ``` 找到`/dev/mapper/openeuler-home /home ext4 defaults 1 2` 改为`#/dev/mapper/openeuler-home /home ext4 defaults 1 2` 保存退出 完全免费社工库 下山虎社工库 https://t.me/MTTigerSGK #社工库 #免费社工库