What were you trying to do that didn't work?

Kickstart installation fails when using Kickstart file containing thinpool lvm but if a volume group is left empty.

And example of this is the below Kickstat file based partitioning:

# Partitioning
ignoredisk --only-use=vda

# Partition clearing information
clearpart --all --initlabel

zerombr
part /boot --fstype="xfs" --ondisk=vda --size=1024

part pv.1 --fstype="lvmpv" --ondisk=vda --size=7000
volgroup rhel --pesize=4096 pv.1
logvol none --fstype="None" --size=1 --grow --thinpool --metadatasize=4 --chunksize=65536 --name=thinp --vgname=rhel

### UNUSED "data" VG:
part pv.2 --fstype="lvmpv" --ondisk=vda --size=2048
volgroup data --pesize=4096 pv.2
logvol none --fstype="None" --size=1 --grow --thinpool --metadatasize=4 --chunksize=65536 --name=thinp --vgname=data

logvol / --fstype="xfs" --size=1 --grow --name=root --vgname=rhel --thin --poolname=thinp
logvol swap --fstype="swap" --size=1024 --name=swap --vgname=rhel --thin --poolname=thinp

In the above example, we see that two thinpool , one in "rhel" and other in "data". We see that there are lvm devices added the the "rhel" vg however the "data" vg is empty without any device.

Upon installation it crashes with an python traceback as per below.

anaconda 33.16.9.4 exception report
Traceback (most recent call first):
File "/usr/lib/python3.6/site-packages/dasbus/client/handler.py", line 497, in _handle_method_error
raise exception from None
File "/usr/lib/python3.6/site-packages/dasbus/client/handler.py", line 477, in _get_method_reply
return self._handle_method_error(error)
File "/usr/lib/python3.6/site-packages/dasbus/client/handler.py", line 447, in _call_method
**kwargs,
File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/common/task/_init_.py", line 46, in sync_run_task
task_proxy.Finish()
File "/usr/lib64/python3.6/site-packages/pyanaconda/ui/lib/storage.py", line 313, in apply_partitioning
sync_run_task(task_proxy)
File "/usr/lib64/python3.6/site-packages/pyanaconda/ui/gui/spokes/storage.py", line 389, in _do_execute
report = apply_partitioning(self._partitioning, self._show_execute_message)
File "/usr/lib64/python3.6/threading.py", line 885, in run
self._target(*self._args, **self._kwargs)
File "/usr/lib64/python3.6/site-packages/pyanaconda/threading.py", line 280, in run
threading.Thread.run(self)
dasbus.error.DBusError: [<class 'decimal.DivisionUndefined'>]

I tested this with multiple RHEL 8 version from RHEL 8.4 to RHEL 8.7 to RHEL 8.9 and it produces the same error.
I also tested this behavior for RHEL 9.2 and found the same failure.
However when testing on RHEL 7.9 this partition scheme is sucessful and produces and empty volume group post installation.

Please provide the package NVR for which bug is seen:

RHEL 8.9 RHEL ISO
RHEL 9.2 RHEL ISO

How reproducible:

Every time

Steps to reproduce

1.  Install RHEL 8.9 or RHEL 9.2 ISO along with the below Kickstart partitioning with 10 GiB virtual disk.

       # Partitioning
       ignoredisk --only-use=vda
   
       # Partition clearing information
       clearpart --all --initlabel
   
       zerombr
       part /boot --fstype="xfs" --ondisk=vda --size=1024
   
       part pv.1 --fstype="lvmpv" --ondisk=vda --size=7000
       volgroup rhel --pesize=4096 pv.1
       logvol none --fstype="None" --size=1 --grow --thinpool --metadatasize=4 --chunksize=65536 --name=thinp --vgname=rhel
   
       ### UNUSED "data" VG:
       part pv.2 --fstype="lvmpv" --ondisk=vda --size=2048
       volgroup data --pesize=4096 pv.2
       logvol none --fstype="None" --size=1 --grow --thinpool --metadatasize=4 --chunksize=65536 --name=thinp --vgname=data
   
       logvol / --fstype="xfs" --size=1 --grow --name=root --vgname=rhel --thin --poolname=thinp
       logvol swap --fstype="swap" --size=1024 --name=swap --vgname=rhel --thin --poolname=thinp
       

Expected results

Kickstart installation should work with thinpool lvm even when the volume group created on thin pool is empty to be utilized later.

Actual results

Thinpool lvm created in Kickstart crashes when kickstart file has leave a volume group empty