[root@NEWLFS mnt]#lvextend -L 1G /dev/lvm_vg/lv_home
Extending logical volume lv_home to 3.00 GB
Logical volume lv_home successfully resized
[root@NEWLFS mnt]#
-L 1G 为lv_home加上 1G 空间。或使用这种格式：
[root@NEWLFS mnt]#lvextend -L 3G /dev/lvm_vg/lv_home
指定lv_home更改后的大小,效果相同。
更改逻辑卷大小后，还应该更改文档系统的大小，保持一致：
[root@NEWLFS mnt]#resize_reiserfs -f /dev/lvm_vg/lv_home
| 代码: |
| resize_reiserfs 3.6.19 (2003 www.namesys.com)
ReiserFS report: blocksize 4096 block count 786432 (524288) free blocks 778197 (516061) bitmap block count 24 (16) Syncing..done resize_reiserfs: Resizing finished successfully. |
[root@NEWLFS mnt]df
Filesystem Size Used Avail Use% Mounted on
/dev/md0 5.4G 2.8G 2.7G 51% /
/dev/hda1 6.4G 4.0G 2.5G 62% /mnt/C
/dev/hda6 25G 22G 3.6G 86% /mnt/E
/dev/hda7 9.7G 3.7G 5.6G 40% /mnt/lfs
/dev/mapper/lvm_vg-lv_home
3.0G 33M 3.0G 2% /mnt/lvm_home
[root@NEWLFS mnt]#
成功的将lvm_home扩展到了3G，没有重新启动，并且没有卸载文档系统。
ReiserFS真是好用！ ^_^
当然，ReiserFS 也允许卸载文档系统后resize,使用下列命令：
[root@NEWLFS mnt]#umount /dev/lvm_vg/lv_home
卸载文档系统
[root@NEWLFS mnt]#resize_reiserfs /dev/lvm_vg/lv_home
调整大小，和上面不同的地方是没有 -f 参数.
[root@NEWLFS mnt]#mount -t reiserfs /dev/lvm_vg/lv_home lvm_home/
重新挂载上.
EXT2/3 安装，扩展：
[root@NEWLFS mnt]#lvcreate -L 2G -n lv_opt lvm_vg
Logical volume "lv_opt" created
分出一块2G名字为lv_opt的逻辑卷
[root@NEWLFS mnt]#mke2fs -j /dev/lvm_vg/lv_opt
| 代码: |
| mke2fs 1.35 (28-Feb-2004)
Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 262144 inodes, 524288 blocks 26214 blocks (5.00%) reserved for the super user First data block=0 16 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912 Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 35 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. |
创建ext3文档系统
[root@NEWLFS mnt]#mkdir lvm_opt
[root@NEWLFS mnt]#mount -t ext3 /dev/lvm_vg/lv_opt lvm_opt/
创建挂载点，挂载上。
[root@NEWLFS mnt]#df
| 代码: |
| Filesystem Size Used Avail Use% Mounted
.............. /dev/mapper/lvm_vg-lv_home 3.0G 33M 3.0G 2% /mnt/lvm_home /dev/mapper/lvm_vg-lv_opt 2.0G 33M 1.9G 2% /mnt/lvm_opt |
[root@NEWLFS mnt]#lvextend -L 1G /dev/lvm_vg/lv_opt
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