Comment 5 for bug 1886748

Removing libomp5 after adjusting sources.list from bionic to focal allows the upgrade to calculate.

bdmurray@clean-bionic-amd64:~$ sudo apt-get remove libomp5
Reading package lists... Done
Building dependency tree
Reading state information... Done
Starting pkgProblemResolver with broken count: 1
Starting 2 pkgProblemResolver with broken count: 1
Investigating (0) libomp-dev:amd64 < 5.0.1-1 -> 1:10.0-50~exp1 @ii umU Ib >
Broken libomp-dev:amd64 Depends on libomp-10-dev:amd64 < none | 1:10.0.0-4ubuntu1 @un uH > (>= 10~)
  Considering libomp-10-dev:amd64 0 as a solution to libomp-dev:amd64 0
  Re-Instated libomp5-10:amd64
  Re-Instated gcc-10-base:amd64
  Re-Instated libgcc-s1:amd64
  Re-Instated libomp-10-dev:amd64
  Re-Instated libomp-dev:amd64
Done
The following additional packages will be installed:
  gcc-10-base libgcc-s1 libomp-10-dev libomp-dev libomp5-10
Suggested packages:
  libomp-10-doc
The following packages will be REMOVED:
  libomp5
The following NEW packages will be installed:
  gcc-10-base libgcc-s1 libomp-10-dev libomp5-10
The following packages will be upgraded:
  libomp-dev
1 upgraded, 4 newly installed, 1 to remove and 1409 not upgraded.
Need to get 411 kB of archives.
After this operation, 1,863 kB of additional disk space will be used.