Description of problem:

  When a filesystem fills up on a server running a service
  we can't take down, it would be nice being able to extend the
  file system without umounting it.  I tried using e2fsadm on a
  test machine, but it complained that ext2online is missing:

    hvelvet.uio.no# df -h /dev/datavg/filelog
    Filesystem            Size  Used Avail Use% Mounted on
    /dev/datavg/filelog    14G  815M   13G   7% /usit/hvelvet/filelog
    hvelvet.uio.no# e2fsadm -L 15g /dev/datavg/filelog
    e2fsadm -- Sorry: 'ext2online' not found in any of /sbin /usr/sbin /usr/local/sbin /bin /usr/bin
    e2fsadm -- ERROR: can't online resize

    e2fsadm -- ERROR: /proc/mounts says /dev/datavg/filelog is mounted on /usit/hvelvet/filelog.
    Please unmount it to resize.

    hvelvet.uio.no#

  I'm unable to find an official package from redhat including
  ext2online.  I found a version at
  <URL: http://ext2resize.sourceforge.net/ >, but we want to use
  official and supported tools on these machines.  Besides, I read
  that a kernel patch is needed as well, and we need to stay with
  the official kernel images from RedHat to make sure we get
  support from the application vendors.

  So my problem is the lack of ext2online and patched kernel
  in RedHat Enterprise Linux.  Please include it in version 3
  as soon as possible.

Version-Release number of selected component (if applicable):

  lvm-1.0.3-15
  e2fsprogs-1.32-15
  kernel-smp-2.4.21-9.EL

How reproducible:

  Every time.