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Description of problem:
The installer GUI will not let you create a logical volumes with more than 65536 logical extents.  This appears to be an attempt to enforce the LVM1 limit of 65534 extents per LV, which was lifted long ago.

Version-Release number of selected component (if applicable):
RHEL 5.2

How reproducible:
100%

Steps to Reproduce:
1. Start RHEL 5.2 installer in graphical mode
2. select custom disk layout
3. create a large PV (at least 64 GB)
4. create a VG with that large PV, and select a small extent size, such as 1 MB
5. Try to create a very large LV (> 64 GB)
  
Actual results:
Anaconda tells you it's limited to 65536 x extent size.

Expected results:
Anaconda lets you do whatever you want, since LVM2 does not have this restriction.

Additional info:
This artificially limits logical volumes to 2 TB with the default 32 MB extent size, or 8 TB with the maximum 128 MB extent size available in the LVM GUI.

This should be fixed up in F11, which means it'll get pulled in for RHEL6.  I doubt we'll ever be able to isolate the set of commits that fix just this issue for backporting, since fixing this was part of a major storage rewrite we've been dealing with for a while now.  If you can, please test F11 out so we can make sure there's no outstanding problem for RHEL6.  Thanks.

Tested with anaconda-13.21.45-1.el6 in Xen domU. My setup is this:

- The domU backing store is a 100G file on the host
- In Anaconda UI I've created /boot (200MB) and a PV using all remaining space
- Created a VG with PE size 1MB and a LV for / with size 99850 MB. The rest is swap

Anaconda didn't issue any warnings or errors and happily proceeded with the install. The system was able to boot after install. 

Moving to VERIFIED.

Red Hat Enterprise Linux Beta 2 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.