校园网络拓扑:linux 挂载硬盘出现错误

硬盘里面都是电影数据， 是ext2。

操作步骤如下。 请问高手如何才能挂载成功？

[root@localhost mnt]# mkdir hdc1
[root@localhost mnt]# mount -t ext2 /dev/hdc1 /mnt/hdc1
mount: wrong fs type, bad option, bad superblock on /dev/hdc1,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

[root@localhost mnt]# dmesg | tail
EXT2-fs error (device hdc1): ext2_check_descriptors: Inode bitmap for group 448 not in group (block 2147483647)!
EXT2-fs: group descriptors corrupted!
EXT2-fs error (device hdc1): ext2_check_descriptors: Inode bitmap for group 448 not in group (block 2147483647)!
EXT2-fs: group descriptors corrupted!
EXT2-fs error (device hdc1): ext2_check_descriptors: Inode bitmap for group 448 not in group (block 2147483647)!
EXT2-fs: group descriptors corrupted!
EXT2-fs error (device hdc1): ext2_check_descriptors: Inode bitmap for group 448 not in group (block 2147483647)!
EXT2-fs: group descriptors corrupted!
EXT2-fs error (device hdc1): ext2_check_descriptors: Inode bitmap for group 448 not in group (block 2147483647)!
EXT2-fs: group descriptors corrupted!