also the ballooning is disabled. It's enabled for any other normal cluster since..4.0 or so. Please fix that for the Default cluster too.

Reassigned:
1. In WebAdmin, edit cluster dialog, the BIOS type is grayed out (cannot be selected).
2. BIOS type value is set to "Cluster Default" without any reference to what "cluster Default" stands for.

this issues are relevant for default cluster and new cluster.

Builds:
ovirt-engine-4.4.0-0.33.master.el8ev
vdsm-4.40.13-1.el8ev.x86_64

Created attachment 1680014 [details]
Screenshot of edit cluster dialog

Can this bug changed to MODIFIED?

(In reply to Nisim Simsolo from comment #2)
> Reassigned:
> 1. In WebAdmin, edit cluster dialog, the BIOS type is grayed out (cannot be
> selected).
> 2. BIOS type value is set to "Cluster Default" without any reference to what
> "cluster Default" stands for.

and that's a correct behavior, since you don't have architecture or cpu determined yet


what matters is that it's set correctly once you add a host

Verified: 
ovirt-engine-4.4.0-0.33.master.el8ev
vdsm-4.40.13-1.el8ev.x86_64
qemu-kvm-4.2.0-19.module+el8.2.0+6296+6b821950.x86_64
libvirt-daemon-6.0.0-17.module+el8.2.0+6257+0d066c28.x86_64

Verification scenario:
1. Add host to "Default" cluster.
   Verify the next:
   - in engine db, bios_type=2 and enable_balloon=t
   for example:
   engine=# select enable_balloon,bios_type from cluster where name='Default';
   enable_balloon | bios_type 
   ----------------+-----------
    t              |         2

   - Browse WebAdmin -> Compute -> Clusters, open Default cluster edit dialog
   BIOS type dropbox is wth the next value: "Q35 Chipset with Legacy BIOS"
   and it is possible to drop down dropbox and select other values.

2. Create new DC, New Cluster and add host to the new cluster.
   Verify the next:
   - in engine db, bios_type=2 and enable_balloon=f
   For example:
   engine=# select enable_balloon,bios_type from cluster where name='new_cluster';
   enable_balloon | bios_type 
   ----------------+-----------
    f              |         2

   - Browse WebAdmin -> Compute -> Clusters, open Default cluster edit dialog
   BIOS type dropbox is wth the next value: "Q35 Chipset with Legacy BIOS"
   and it is possible to drop down dropbox and select other values.

This bugzilla is included in oVirt 4.4.0 release, published on May 20th 2020.

Since the problem described in this bug report should be
resolved in oVirt 4.4.0 release, it has been closed with a resolution of CURRENT RELEASE.

If the solution does not work for you, please open a new bug report.