[CentOS] linux xfs

Hi,

I get the below issue when i install CentOS 5.6 x86_64 on IBM x3650 M3
when i run "linux xfs" at boot prompt. Please suggest/guide.

Regards

Kaushal

    20:14:50 INFO : moving (1) to step confirminstall
    20:14:55 INFO : moving (1) to step install
    20:14:55 INFO : moving (1) to step enablefilesystems
    20:14:55 DEBUG : starting mpaths
    20:14:55 DEBUG : self.driveList(): ['sda', 'sdb']
    20:14:55 DEBUG : DiskSet.skippedDisks: ['sdb']
    20:14:55 DEBUG : DiskSet.skippedDisks: ['sdb']
    20:14:55 DEBUG : done starting mpaths. Drivelist: ['sda', 'sdb']
    20:14:57 INFO : disk.commit() for /dev/sda
    20:14:57 DEBUG : removing drive sda from disk lists
    20:14:57 DEBUG : starting mpaths
    20:14:57 DEBUG : self.driveList(): ['sda', 'sdb']
    20:14:57 DEBUG : DiskSet.skippedDisks: ['sdb']
    20:14:57 DEBUG : DiskSet.skippedDisks: ['sdb']
    20:14:57 DEBUG : done starting mpaths. Drivelist: ['sda', 'sdb']
    20:14:57 DEBUG : adding drive sda to disk list
    20:14:57 INFO : formatting swap as swap
    20:15:01 DEBUG : starting mpaths
    20:15:01 DEBUG : self.driveList(): ['sda', 'sdb']
    20:15:01 DEBUG : DiskSet.skippedDisks: ['sdb']
    20:15:01 DEBUG : DiskSet.skippedDisks: ['sdb']
    20:15:01 DEBUG : done starting mpaths. Drivelist: ['sda', 'sdb']
    20:15:01 DEBUG : adding drive sda to disk list
    20:15:04 INFO : formatting / as xfs
    20:15:04 CRITICAL: Traceback (most recent call first):
    File "/usr/lib64/python2.4/subprocess.py", line 996, in _execute_child
    raise child_exception
    File "/usr/lib64/python2.4/subprocess.py", line 550, in __init__
    errread, errwrite)
    File "/tmp/treedir.24003/instimage/usr/lib/anaconda/iutil.py",
line 51, in execWithRedirect
    stderr=stderr, preexec_fn=chroot, cwd=root)
    File "/tmp/treedir.24003/instimage/usr/lib/anaconda/fsset.py",
line 471, in formatDevice
    stderr = "/dev/tty5")
    File "/tmp/treedir.24003/instimage/usr/lib/anaconda/fsset.py",
line 1823, in formatEntry
    entry.fsystem.formatDevice(entry, self.progressWindow, chroot)
    File "/tmp/treedir.24003/instimage/usr/lib/anaconda/fsset.py",
line 1900, in makeFilesystems
    self.formatEntry(entry, chroot)
    File "/tmp/treedir.24003/instimage/usr/lib/anaconda/packages.py",
line 162, in turnOnFilesystems
    anaconda.id.fsset.makeFilesystems (anaconda.rootPath)
    File "/usr/lib/anaconda/dispatch.py", line 207, in moveStep
    rc = stepFunc(self.anaconda)
    File "/usr/lib/anaconda/dispatch.py", line 130, in gotoNext
    self.moveStep()
    File "/usr/lib/anaconda/gui.py", line 1156, in nextClicked
    self.anaconda.dispatch.gotoNext()
    File "/usr/lib/anaconda/iw/progress_gui.py", line 251, in renderCallback
    self.intf.icw.nextClicked()
    File "/usr/lib/anaconda/gui.py", line 1183, in handleRenderCallback
    self.currentWindow.renderCallback()
    RuntimeError: /usr/sbin/mkfs.xfs can not be run