How to Mount New Mount Point In Linux

[root@OEL64N2 ~]# mount -t ext4 /dev/sdb1 /u02
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@OEL64N2 ~]#
[root@OEL64N2 ~]#
[root@OEL64N2 ~]# df -H
Filesystem             Size   Used  Avail Use% Mounted on
/dev/sda5               11G   3.3G   6.9G  33% /
tmpfs                  1.2G    91k   1.2G   1% /dev/shm
/dev/sda2              4.3G   143M   3.9G   4% /tmp
/dev/sda1               13G    12G   345k 100% /u01
[root@OEL64N2 ~]#
[root@OEL64N2 ~]#
[root@OEL64N2 ~]#
[root@OEL64N2 ~]#  mkfs.ext3 /dev/sdb1 2>/dev/null
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
1638400 inodes, 6552504 blocks
327625 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
200 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000

Writing inode tables: done
Creating journal (32768 blocks):
done
Writing superblocks and filesystem accounting information:
done

This filesystem will be automatically checked every 30 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@OEL64N2 ~]#
[root@OEL64N2 ~]#
[root@OEL64N2 ~]#
[root@OEL64N2 ~]#  mount -t ext4 /dev/sdb1 /u02
[root@OEL64N2 ~]#
[root@OEL64N2 ~]# df -H
Filesystem             Size   Used  Avail Use% Mounted on
/dev/sda5               11G   3.3G   6.9G  33% /
tmpfs                  1.2G    91k   1.2G   1% /dev/shm
/dev/sda2              4.3G   143M   3.9G   4% /tmp
/dev/sda1               13G    12G   345k 100% /u01
/dev/sdb1               27G   181M    25G   1% /u02
[root@OEL64N2 ~]#