resizing an lvm volume with setup-storage

[Nicolas Courtel]

Hello Michael,

>>>> Could you give 3.3.4+experimental2 another chance? That one should not do
>>>> pvcreate on volumes that are part of that volume group already.
I found another issue on the LVM resize option : it always preserves the 
partition. This is not appropriate, as when resizing /usr like I do one 
is expecting the partition to be cleaned before the new installation.  
Also, setup-storage fails if the partition does not already exist :

Can't preserve /dev/vg0/usr because it does not exist


IMHO the resize option should behave as follows:
if (the volume exists) {
  resize the volume
  if (a preserve* flag is also set for this volume) {
    resize the filesystem
  } else {
    create a new filesystem
  }
} else {
  ignore the resize flag and create a new volume + filesystem
}

-- 
Nicolas