北大青鸟小游网:值得大家信赖的游戏下载站!
发布时间:2021-06-30 11:03:30来源:北大青鸟手游网作者:北大青鸟手游网
调整硬盘分区大小
想增加root空间,减少home空间。
[root@npm ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 48G 45G 17M 100% / tmpfs 246M 0 246M 0% /dev/shm /dev/sda1 485M 33M 427M 8% /boot /dev/mapper/VolGroup-lv_home 50G 180M 47G 1% /home
[root@npm ~]# umount /home [root@npm ~]# e2fsck -f /dev/mapper/VolGroup-lv_home e2fsck 1.41.12 (17-May-2010) 第一步: 检查inode,块,和大小 第二步: 检查目录结构 第3步: 检查目录连接性 Pass 4: Checking reference counts 第5步: 检查簇概要信息 /dev/mapper/VolGroup-lv_home: 11/3303104 files (0.0% non-contiguous), 253351/13207552 blocks [root@npm ~]# resize2fs -p /dev/mapper/VolGroup-lv_home 2G resize2fs 1.41.12 (17-May-2010) Resizing the filesystem on /dev/mapper/VolGroup-lv_home to 524288 (4k) blocks. Begin pass 2 (max = 32768) 正在重定位块 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Begin pass 3 (max = 404) 正在扫描inode表 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX The filesystem on /dev/mapper/VolGroup-lv_home is now 524288 blocks long.[root@npm ~]# mount /home [root@npm ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 48G 45G 17M 100% / tmpfs 246M 0 246M 0% /dev/shm /dev/sda1 485M 33M 427M 8% /boot /dev/mapper/VolGroup-lv_home 2.0G 152M 1.8G 8% /home
[root@npm ~]# lvreduce -L 2G /dev/mapper/VolGroup-lv_home WARNING: Reducing active and open logical volume to 2.00 GiB THIS MAY DESTROY YOUR DATA (filesystem etc.) Do you really want to reduce lv_home? [y/n]: y Reducing logical volume lv_home to 2.00 GiB Logical volume lv_home successfully resized [root@npm ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 48G 45G 16M 100% / tmpfs 246M 0 246M 0% /dev/shm /dev/sda1 485M 33M 427M 8% /boot /dev/mapper/VolGroup-lv_home 2.0G 152M 1.8G 8% /home [root@npm ~]# vgdisplay — Volume group — VG Name VolGroup System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 5 VG Access read/write VG Status resizable MAX LV 0 Cur LV 3 Open LV 3 Max PV 0 Cur PV 1 Act PV 1 VG Size 99.51 GiB PE Size 4.00 MiB Total PE 25474 Alloc PE / Size 13088 / 51.12 GiB Free PE / Size 12386 / 48.38 GiB VG UUID ILLwIo-pQ0o-2Ayw-fYcP-QhcW-A1id-Sozp1f
[root@npm ~]# lvextend -L +48.38G /dev/mapper/VolGroup-lv_root Rounding size to boundary between physical extents: 48.38 GiB Extending logical volume lv_root to 96.54 GiB Logical volume lv_root successfully resized [root@npm ~]# resize2fs -p /dev/mapper/VolGroup-lv_root resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/mapper/VolGroup-lv_root is mounted on /; on-line resizing required old desc_blocks = 4, new_desc_blocks = 7 Performing an on-line resize of /dev/mapper/VolGroup-lv_root to 25307136 (4k) blocks. The filesystem on /dev/mapper/VolGroup-lv_root is now 25307136 blocks long.[root@npm ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 96G 45G 46G 50% / tmpfs 246M 0 246M 0% /dev/shm /dev/sda1 485M 33M 427M 8% /boot /dev/mapper/VolGroup-lv_home 2.0G 152M 1.8G 8% /home
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