>> /dev/devil-linux/opt:
>> The superblock could not be read or does not describe a correct ext2
>> filesystem.  If the device is valid and it really contains an ext2
>> filesystem (and not swap or ufs or something else), then the superblock
>> is corrupt, and you might try running e2fsck with an alternate superblock:
>>    e2fsck -b 8193 <device>

>It looks like you forgot to format (mkfs) the LVM filesystems.

It's fantastic! You are right!!! Thanks a lot!