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Bug 1879511

Summary: RHCOS 4.6 nightly kernel and initramfs not working on KVM/QEMU infrastructure
Product: OpenShift Container Platform Reporter: Ray Ashworth <ashworth>
Component: RHCOSAssignee: Micah Abbott <miabbott>
Status: CLOSED DUPLICATE QA Contact: Michael Nguyen <mnguyen>
Severity: high Docs Contact:
Priority: unspecified    
Version: 4.6CC: bbreard, imcleod, jligon, nstielau
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2020-09-16 13:15:17 UTC Type: Bug
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Description Ray Ashworth 2020-09-16 12:40:32 UTC 
Description of problem:

We're using the baremetal UPI install.
RH8 VM inf/lb node, which is able to run the installer to generate ignitions fine.
KVM/QEMU blank VMs running on EL8 or Ubuntu 20 compute nodes that use the provided nightly initramfs/kernel which does boot ok and seems to proceed (even gets ip from DHCP), but fails to apply/act on the APPEND boot options and never downloads the metal/ignition files from http webserver to actually continue the install. DHCP seems to be applying the ip properly, and the installer can be pinged from other nodes

https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/pre-release/latest/rhcos-live-initramfs.x86_64.img

https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/pre-release/latest/rhcos-live-kernel-x86_64

Version-Release number of the following components:
CoreOS 4.6 nightly 9/10/2020

How reproducible:

Steps to Reproduce:
1. Attempt install on KVM/QEMU infrastructure


Actual results:
OCP will not install

Expected results:
OCP 4.6 nightly install to succeed.

Additional information:
changing to 4.5 kernel and initramfs, will allow OCP 4.6 nightly build to install correctly.
Comment 1 Scott Dodson 2020-09-16 13:15:17 UTC 

*** This bug has been marked as a duplicate of bug 1879510 ***