[CentOS] fresh install of centos looking for non-existant /dev/hda : /dev/hda: open failed: No medium found

# lvm pvs
  /dev/hda: open failed: No medium found
  Couldn't find device with uuid r5HNPO-l18V-XfJ7-9RXY-AaWC-a4YY-3oL5h7.
  PV             VG         Fmt  Attr PSize   PFree
  /dev/sda2      VolGroup01 lvm2 a-   232.72G     0
  /dev/sdb1      VolGroup00 lvm2 a-   232.81G 32.00M
  unknown device VolGroup00 lvm2 a-   232.72G 32.00M

I just installed the OS, did some tweaks, but did nothing to hardware.
There was no /dev/hda listed when I went through the partitioning page
of the install.

Where did this come from?

How do I get rid of it?

Does it matter?

mahalo,
Dave