新家硬盘，还是提示空间不足

大家好！
我RedHat Enterprise Liunx 5 安装 VMware 6.5上，虚拟机默认8G空间，由于空间不足，新挂接硬盘名为“NetWeaver” ，通过VMware Tools
拖入ISO文件 提示空间不足。高手指点。


[root@localhost ~]# fdisk -l
Disk /dev/sda: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1044 8281507+ 8e Linux LVM

Disk /dev/sdb: 32.2 GB, 32212254720 bytes
255 heads, 63 sectors/track, 3916 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 1 3916 31455238+ 83 Linux

[root@localhost ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
ext3 5.8G 5.7G 0 100% /
/dev/sda1 ext3 99M 12M 82M 13% /boot
tmpfs tmpfs 471M 0 471M 0% /dev/shm
/dev/sdb1 ext3 30G 173M 28G 1% /NetWeaver
.host:/ vmhgfs 35G 24G 11G 70% /mnt/hgfs