[root@Data root]# fdisk -l
Disk /dev/hda: 163.9 GB, 163928604672 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 1301 10345860 8e Linux LVM
/dev/hda3 1302 11302 80333032+ 8e Linux LVM
/dev/hda4 11303 11425 987997+ 8e Linux LVM
[root@Data root]# pvcreate /dev/hda4
pvcreate -- invalid physical volume %26quot;/dev/hda4%26quot;
注：/dev/hda1 /dev/hda2是安装的时候建的分区，hda3 hda4是安装以后建的分区
重启以后：
[root@Data home]# fdisk -l
Disk /dev/hda: 163.9 GB, 163928604672 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 1301 10345860 8e Linux LVM
/dev/hda3 1302 11302 80333032+ 8e Linux LVM
/dev/hda4 11303 11425 987997+ 8e Linux LVM
[root@Data home]# pvcreate /dev/hda3
pvcreate -- physical volume %26quot;/dev/hda3%26quot; successfully created
怎么会这样啊，难道需要重启才可以？
请知道的兄弟姐妹解释一下啦，多谢！
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