Cannot mount LVM2 partitions

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http://unix.stackexchange.com – I have a 160GB hard drive here with an LVM2 partition that contains two EXT3 partitions that I'm trying to mount. However, when I try to mount either of those two partitions inside the LVM2, I get the error: mount: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so Also, when I run fdisk, it shows the two partitions as not containing "a valid partition table" Disk /dev/sdd: 160.0 GB, 16004188696 bytes 255 heads, 63 sectors/track, 19457 cylind (HowTos)