Comment 8 for bug 1838115

Installed Bionic 18.04.2 i386 Desktop iso, (same one used by colin) on a a Dell PowerEdge R320 and upgraded to the 5.0.0.22. I was able to successfully boot the host on 5.0.0

ubuntu@ubuntu-PowerEdge-R320:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic
ubuntu@ubuntu-PowerEdge-R320:~$ uname -a
Linux ubuntu-PowerEdge-R320 5.0.0-21-generic #22~18.04.1-Ubuntu SMP Thu Jul 4 17:23:57 UTC 2019 i686 i686 i686 GNU/Linux

ubuntu@ubuntu-PowerEdge-R320:~$ apt-cache policy linux-generic-hwe-18.04
linux-generic-hwe-18.04:
  Installed: 5.0.0.21.78
  Candidate: 5.0.0.21.78
  Version table:
 *** 5.0.0.21.78 500
        500 http://us.archive.ubuntu.com/ubuntu bionic-proposed/main i386 Packages

attached dmidecode of hardware