root@proxmox2:~# fdisk -l /dev/sdb

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x7431e929

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1              63  1953525167   976762552+  83  Linux
Partition 1 does not start on physical sector boundary.
root@proxmox2:~# mount -t linux /dev/sdb1 /mnt/sdb1
mount: unknown filesystem type 'linux'
root@proxmox2:~# mount -t ext /dev/sdb1 /mnt/sdb1
mount: unknown filesystem type 'ext'
root@proxmox2:~# mount -t ext4 /dev/sdb1 /mnt/sdb1
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

root@proxmox2:~# mount -t ext3 /dev/sdb1 /mnt/sdb1
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so