Comment 7 for bug 1874501

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Ryan Harper (raharper) wrote :

I don't think this is the right fix. We need to test that it doesn't prevent vgscan from finding and creating /dev/vg/lv device files outside of of multipath.

The real fix involves:

  1) omitting the call to vgmknodes if there are no volume groups present
  2) if vgnodes are present, device_mapper/libdm-common.c should determine if DM_DISABLE_LIBRARY_FALLBACK should be set in the same way that dmsetup.c does.

I'd much prefer upstream to produce a proper fix.