How to restore data from second hdd on centos????

[xinhvatra]

Because of problem on hdd1 i installed centos on hdd2. Centos on hdd1 is still good. Now i want to mount hdd1 from centos on hdd2 to copy data to hdd1 but impossible:
fdisk -l

Disk /dev/hda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 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 60801 488279610 8e Linux LVM

Disk /dev/hdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hdc1 * 1 13 104391 83 Linux
/dev/hdc2 14 121601 976655610 8e Linux LVM

/dev/hdc is the hdd1 which i want to mount

when i try to mount /dev/hdc2:
mount /dev/hdc2 mnt
mount: you must specify the filesystem type

[falko]

/dev/hdc2 uses LVM. You can mount logical volumes, but not the physical partition. See http://www.howtoforge.com/linux_lvm