更改逻辑卷名称（三）

秒速五厘米 2022-05-22 23:59 351阅读 0赞

[root@test~]# df -h
    Filesystem                    Size  Used Avail Use% Mounted on
    /dev/mapper/VolGroup-lv_root   50G  2.2G   45G   5% /
    tmpfs 			       16G     0   16G   0% /dev/shm  
    /dev/sda1 		      485M   37M  423M   9% /boot
    /dev/mapper/VolGroup-lv_home  210G  188M  199G   1% /home
    
    
    umount /dev/mapper/VolGroup-lv_home
    
    
    ##查看逻辑卷名称，状态
    [root@test~]# lvdisplay 
    --- Logical volume ---
    LV Path /dev/VolGroup/lv_root
    LV Name lv_root
    VG Name VolGroup
    LV UUID P8HcNc-74sj-kQz7-OdR7-SxOP-qjdZ-kS3IAM
    LV Write Access read/write
    LV Creation host, time data2, 2015-06-18 19:38:09 +0800
    LV Status available
    # open 1
    LV Size 50.00 GiB
    Current LE 12800
    Segments 1
    Allocation inherit
    Read ahead sectors auto
    - currently set to 256
    Block device 253:0
    
    --- Logical volume ---
    LV Path /dev/VolGroup/lv_home
    LV Name lv_home
    VG Name VolGroup
    LV UUID 65oesf-ZQdW-m2f9-CjBY-TMGx-3XI7-hpH9xX
    LV Write Access read/write
    LV Creation host, time data2, 2015-06-18 19:38:12 +0800
    LV Status available
    # open 1
    LV Size 213.15 GiB
    Current LE 54566
    Segments 1
    Allocation inherit
    Read ahead sectors auto
    - currently set to 256
    Block device 253:2
    
    --- Logical volume ---
    LV Path /dev/VolGroup/lv_swap
    LV Name lv_swap
    VG Name VolGroup
    LV UUID yra6f8-EjEL-YVSg-aP97-Iyr3-na8n-BISVcc
    LV Write Access read/write
    LV Creation host, time data2, 2015-06-18 19:38:42 +0800
    LV Status available
    # open 1
    LV Size 15.73 GiB
    Current LE 4026
    Segments 1
    Allocation inherit
    Read ahead sectors auto
    - currently set to 256
    Block device 253:1
    
    
    
    ##更改逻辑卷名称
    [root@test~]# lvrename /dev/VolGroup/lv_home /dev/VolGroup/lv_u01
    Renamed "lv_home" to "lv_u01" in volume group "VolGroup"
    
    更改/etc/fstab的挂载
    
    
    重新挂载mount /dev/mapper/VolGroup-lv_u01 /u01
    
    
    如果是更改root、swap的目录，还需要修改/etc/grub.conf

[root@test~]# # more /etc/grub.conf  
    # grub.conf generated by anaconda
    #
    # Note that you do not have to rerun grub after making changes to this file
    # NOTICE:  You have a /boot partition.  This means that
    #          all kernel and initrd paths are relative to /boot/, eg.
    #          root (hd0,0)
    #          kernel /vmlinuz-version ro root=/dev/mapper/VolGroup-lv_root
    #          initrd /initrd-[generic-]version.img
    #boot=/dev/sda
    default=0
    timeout=5
    splashimage=(hd0,0)/grub/splash.xpm.gz
    hiddenmenu
    title CentOS (2.6.32-431.el6.x86_64)
            root (hd0,0)
            kernel /vmlinuz-2.6.32-431.el6.x86_64 ro root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-
    sun16 crashkernel=auto rd_LVM_LV=VolGroup/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
            initrd /initramfs-2.6.32-431.el6.x86_64.img