Description of problem:

I have run into the following error:

    anaconda 23.19.6-1 exception report^M
    Traceback (most recent call first):^M
      File "/usr/lib64/python3.4/site-packages/pyanaconda/packaging/dnfpayload.py", line 550, in spaceRequired^M                          
        for (key, val) in self.storage.mountpoints.items():^M
      File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/lib/space.py", line 76, in check^M
        needed = self.payload.spaceRequired^M
      File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/tui/hubs/summary.py", line 79, in prompt^M
        if self._checker and not self._checker.check():^M
      File "/usr/lib64/python3.4/site-packages/pyanaconda/ui/tui/simpleline/base.py", line 346, in _mainloop^M
        prompt = last_screen.prompt(self._screens[-1][1])^M
    AttributeError: 'NoneType' object has no attribute 'mountpoints'^M

The `mountpoints' suggests there may be something wrong with storage
configuration. Only after a while trying to understand whether there is
something wrong with my kickstart I have found the mirror is corrupted (empty
repodata.)

There is dnf mentioned in the backtrace but the message is IMO not very helpful.

After switching to correct mirror I was able to proceed with installation.

For completeness, this ks installation using following to configure storage:

    # Partition clearing information
    clearpart --all --initlabel --drives=vda                                                                                              
    # Clear the Master Boot Record
    zerombr
    ignoredisk --only-use=vda,vdb
    # System bootloader configuration
    bootloader --location=mbr --boot-drive=vda --append="console=tty0 console=ttyS1,115200 sysrq_always_enabled"
    # Precisely define partitions:
    part /boot --size=512 --fstype=ext4 --ondisk=vda
    part swap --size=256 --ondisk=vda
    
    logvol / --vgname=vg_stacker_D8F4 --name=root --useexisting --fstype=ext4 --size=6144 --mkfsoptions="-O '^64bit'"

The disk layout has one LV, PV (vdb) is directly on disk, no partitions used:

    NAME                   MAJ:MIN RM    SIZE RO TYPE MOUNTPOINT
    vda                    252:0    0     1G  0 disk 
    vdb                    252:16   0     8G  0 disk 
    `-vg_stacker_D8F4-root 253:2    0     6G  0 lvm  
    loop0                    7:0    0   343M  1 loop 
    loop1                    7:1    0     2G  1 loop 
    |-live-rw              253:0    0     2G  0 dm   /
    `-live-base            253:1    0     2G  1 dm   
    loop2                    7:2    0   512M  0 loop 
    `-live-rw              253:0    0     2G  0 dm   /
    zram0                  251:0    0 993.5M  0 disk [SWAP]

Version-Release number of selected component (if applicable):
Fedora 23_TC9 compose, Server
anaconda 23.19.6-1