硬盘分区问题
Disk /dev/xvda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/xvda1 * 1 13 104391 83 Linux
/dev/xvda2 14 1044 8281507+ 8e Linux LVM

/dev/xvda是21.4G的，现在/dev/xvda2是8G的，我想把xvda2分区变大，把xvda加上去，该怎么办呀

[解决办法]