VirtualBox 4.1中的CentOS 5显示0作为磁盘可用空间

我刚安装了一个新的centos 5.8 64位在virtualbox 4.1.10安装客人添加

我给了它一个dynamic分配的8GB硬盘。 目前它只用了3.9GB。 但是，似乎认为3.9 gb是已经得到的，可用空间显示为0。

这意味着我无法安装任何更新或任何其他应用程序。

我如何让Linux看到完整的8GB？

• 使用dd命令并在将驱动器克隆到img时用完空间
• 电源能否影响I / O
• SSD突然充满
• 在专用服务器中推荐的高清格式选项？
• 如果getfacl不断运行，使用大于90％的可用磁盘I / O是否正常？

[pdeva@localhost ~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 3.9G 3.6G 62M 99% / /dev/sda1 99M 13M 81M 14% /boot tmpfs 4.2G 0 4.2G 0% /dev/shm unpack 239G 228G 11G 96% /media/sf_unpack /dev/hdc 49M 49M 0 100% /media/VBOXADDITIONS_4.1.10_76836 

  [root@localhost pdeva]# /usr/sbin/pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name VolGroup00 PV Size 7.90 GB / not usable 23.41 MB Allocatable yes (but full) PE Size (KByte) 32768 Total PE 252 Free PE 0 Allocated PE 252 PV UUID 8frMVE-VDj5-Nuhm-PkJ7-9aPT-BvSa-v8WlpP [root@localhost pdeva]# /usr/sbin/vgdisplay --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 7.88 GB PE Size 32.00 MB Total PE 252 Alloc PE / Size 252 / 7.88 GB Free PE / Size 0 / 0 VG UUID MPuRl0-ikuh-fxoM-P62x-WBBA-jqCB-94s9V9 [root@localhost pdeva]# /usr/sbin/lvdisplay --- Logical volume --- LV Name /dev/VolGroup00/LogVol00 VG Name VolGroup00 LV UUID dzHm7O-Wj0K-7I30-P6Bs-lpqh-9F9y-bOs2em LV Write Access read/write LV Status available # open 1 LV Size 3.97 GB Current LE 127 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Logical volume --- LV Name /dev/VolGroup00/LogVol01 VG Name VolGroup00 LV UUID 2iLTuY-yw9h-eQMD-LaVs-8ro1-QGBk-J7xk5P LV Write Access read/write LV Status available # open 1 LV Size 3.91 GB Current LE 125 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1