VirtualBox下扩容vdi文件
2017-09-10 10:54
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VirtualBox下扩容vdi文件
版本:VirtualBox 5.0.14
之前VirtualBox创建的虚拟机的vdi文件过小,无法满足新的实验需求,扩容vdi文件的方法如下:
比如我这里将RHEL6_Primary12cRAC2.vdi文件扩容到60000M大小,方法如下:
VBoxManage modifyhd E:\Vbox\Primary12cRAC2\RHEL6_Primary12cRAC2.vdi --resize 60000
实际执行过程:
至此虚拟机层面的操作就算完成了。
但是这个时候启动虚拟机会发现大小没有变化:
实际上这是因为我这里的环境使用的lvm,而对应的根分区使用的是磁盘的一个分区,而扩容的vdi对应的是/dev/sda磁盘,下面继续来看详细情况:
可以看到/dev/sda已经成功扩容,现在只需要把扩容的空间新建成一个分区:
新加的分区需要重启才能生效。
重启虚拟机之后就可以将新加的分区创建成pv加入到vg,最终扩容lv即可,可以分为4个步骤,具体如下:
1.创建pv
2.扩容vg
3.扩容lv
4.resize2fs lv
至此,已成功扩容了该虚拟机的系统根目录。
版本:VirtualBox 5.0.14
之前VirtualBox创建的虚拟机的vdi文件过小,无法满足新的实验需求,扩容vdi文件的方法如下:
比如我这里将RHEL6_Primary12cRAC2.vdi文件扩容到60000M大小,方法如下:
VBoxManage modifyhd E:\Vbox\Primary12cRAC2\RHEL6_Primary12cRAC2.vdi --resize 60000
实际执行过程:
c:\Program Files\Oracle\VirtualBox>VBoxManage modifyhd E:\Vbox\Primary12cRAC2\RH EL6_Primary12cRAC2.vdi --resize 60000 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
至此虚拟机层面的操作就算完成了。
但是这个时候启动虚拟机会发现大小没有变化:
[root@jydb2 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_linuxbase-lv_root 28G 2.0G 24G 8% / tmpfs 3.9G 0 3.9G 0% /dev/shm /dev/sda1 485M 39M 421M 9% /boot
实际上这是因为我这里的环境使用的lvm,而对应的根分区使用的是磁盘的一个分区,而扩容的vdi对应的是/dev/sda磁盘,下面继续来看详细情况:
[root@jydb2 ~]# fdisk -l /dev/sda Disk /dev/sda: 62.9 GB, 62914560000 bytes 255 heads, 63 sectors/track, 7648 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00047a24 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 3917 30944256 8e Linux LVM
可以看到/dev/sda已经成功扩容,现在只需要把扩容的空间新建成一个分区:
[root@jydb2 ~]# fdisk /dev/sda WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u'). Command (m for help): p Disk /dev/sda: 62.9 GB, 62914560000 bytes 255 heads, 63 sectors/track, 7648 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00047a24 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 3917 30944256 8e Linux LVM Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 3 First cylinder (3917-7648, default 3917): Using default value 3917 Last cylinder, +cylinders or +size{K,M,G} (3917-7648, default 7648): Using default value 7648 Command (m for help): p Disk /dev/sda: 62.9 GB, 62914560000 bytes 255 heads, 63 sectors/track, 7648 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00047a24 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 3917 30944256 8e Linux LVM /dev/sda3 3917 7648 29975280 83 Linux Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8) Syncing disks. [root@jydb2 ~]# partprobe Warning: WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
新加的分区需要重启才能生效。
重启虚拟机之后就可以将新加的分区创建成pv加入到vg,最终扩容lv即可,可以分为4个步骤,具体如下:
1.创建pv
[root@jydb2 ~]# pvcreate /dev/sda3 Physical volume "/dev/sda3" successfully created [root@jydb2 ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda2 vg_linuxbase lvm2 a-- 29.51g 0 /dev/sda3 lvm2 a-- 28.59g 28.59g
2.扩容vg
[root@jydb2 ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_linuxbase 1 2 0 wz--n- 29.51g 0 [root@jydb2 ~]# vgextend -h vgextend: Add physical volumes to a volume group vgextend [-A|--autobackup y|n] [--restoremissing] [-d|--debug] [-f|--force] [-h|--help] [-t|--test] [-v|--verbose] [--version] [-y|--yes] [ PHYSICAL DEVICE OPTIONS ] VolumeGroupNam 9aac e PhysicalDevicePath [PhysicalDevicePath...] [root@jydb2 ~]# vgextend vg_linuxbase /dev/sda3 Volume group "vg_linuxbase" successfully extended [root@jydb2 ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_linuxbase 2 2 0 wz--n- 58.09g 28.58g
3.扩容lv
[root@jydb2 ~]# lvs LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert lv_root vg_linuxbase -wi-ao---- 27.54g lv_swap vg_linuxbase -wi-ao---- 1.97g [root@jydb2 ~]# vgdisplay --- Volume group --- VG Name vg_linuxbase System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 5 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size 58.09 GiB PE Size 4.00 MiB Total PE 14871 Alloc PE / Size 7821 / 30.55 GiB Free PE / Size 7050 / 27.54 GiB VG UUID 41Wk3c-fuD0-SKcX-RqNQ-7uIP-e2xD-1mWaUd [root@jydb2 ~]# lvresize -l +7050 /dev/mapper/vg_linuxbase-lv_root Extending logical volume lv_root to 56.12 GiB Logical volume lv_root successfully resized [root@jydb2 ~]# vgdisplay --- Volume group --- VG Name vg_linuxbase System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 6 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size 58.09 GiB PE Size 4.00 MiB Total PE 14871 Alloc PE / Size 14871 / 58.09 GiB Free PE / Size 0 / 0 VG UUID 41Wk3c-fuD0-SKcX-RqNQ-7uIP-e2xD-1mWaUd [root@jydb2 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_linuxbase-lv_root 29G 2.0G 25G 8% / tmpfs 3.9G 0 3.9G 0% /dev/shm /dev/sda1 485M 39M 421M 9% /boot
4.resize2fs lv
[root@jydb2 ~]# resize2fs /dev/mapper/vg_linuxbase-lv_root resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/mapper/vg_linuxbase-lv_root is mounted on /; on-line resizing required old desc_blocks = 2, new_desc_blocks = 4 Performing an on-line resize of /dev/mapper/vg_linuxbase-lv_root to 14711808 (4k) blocks. The filesystem on /dev/mapper/vg_linuxbase-lv_root is now 14711808 blocks long. [root@jydb2 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_linuxbase-lv_root 56G 2.0G 51G 4% / tmpfs 3.9G 0 3.9G 0% /dev/shm /dev/sda1 485M 39M 421M 9% /boot
至此,已成功扩容了该虚拟机的系统根目录。
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