[Ubuntu] LVM2 add addtional disks

[somabc]

I have Ubuntu 9.04 beta on an LVM with the root filesystem /

I am trying to add a third disk to the LVM but I cannot see how you resize the filesystem. I have followed the steps on Resizing Ubuntu's root file system with LVM but the last step resizing the filesystem with

resize2fs -f /dev/ulvm/uvlm

gives an error (something to do with dev-mapper and the kernel)

The file system is 1.5TB but the Volume group is at 1.9TB (added 500GB drive to the volume group)

  --- Volume group ---
  VG Name               ulvm
  System ID             
  Format                lvm2
  Metadata Areas        3
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               1
  Max PV                0
  Cur PV                3
  Act PV                3
  VG Size               1.94 TB
  PE Size               4.00 MB
  Total PE              509807
  Alloc PE / Size       509613 / 1.94 TB
  Free  PE / Size       194 / 776.00 MB

[Geoff]

Please post the error message

[somabc]

It seems ok if I use the Ubuntu 9.04 LiveCD instead of knoppix, thanks