PSC/VC upgrade fails when performing skip level upgrade to VCF 3.11.x

Products

• VMware Cloud Foundation

Issue/Introduction

Symptoms:

• Skip level upgrade is performed to 3.11.0.0 / 3.11.0.1
• All SDDC Manager upgrades are completed by SLU tool
• VC upgrade U3q (6.7.0-19300125) is applied from SDDC Manager UI and is shown as failed

Following errors are observed in LCM debug log on SDDC Manager and appliance management logs on VC/PSC

LCM log:
2020-12-05T11:35:17.649+0000 INFO  [741b1c914b98ec1b,cf09,upgradeId=9701e578-9bc4-4d29-8e28-9591f3a90b3d,resourceType=PSC,resourceId=53e593f5-24a5-47f2-af50-5e88c6c4497e,bundleElementId=ecce09d8-c034-48a8-9b02-4274ea7e1ce7] [c.v.e.s.l.c.utils.SshCommandRunner,ThreadPoolTaskExecutor-9] Command '[software-packages stage --iso --acceptEulas]' output:
Exit Code 114:  [2020-12-05T11:35:16.340] : ISO mounted successfully
[2020-12-05T11:35:17.340] : ISO unmounted successfully
[2020-12-05T11:35:17.340] : Target patch version is not supported.

Software packages log on PSC:
root@d1vcm1psc02 [ /var/log/vmware/applmgmt ]# zcat software-packages.log.1.gz | fgrep "Target patch version is not supported."
2020-12-05T11:09:07.340 [8592]INFO:root:Target patch version is not supported.
2020-12-05T11:21:09.340 [5129]INFO:root:Target patch version is not supported.
2020-12-05T11:35:17.340 [9167]INFO:root:Target patch version is not supported.

Environment

VMware cloud foundation 3.11.0.1

Cause

A known issue in the vCenter upgrades that requires U3о to be installed before proceeding further with the upgrades.
Reference: VMware vCenter Server Appliance Photon OS Security Patches

Resolution

Currently there is no resolution for the issue, it will be resolved in the future releases.

Workaround:
To workaround the issue, please follow the below mentioned steps:

1. Apply 6.7 U3o (6.7.0-18485166) out of band to all PSCs/VCs.
2. Retry failed VC upgrade to 6.7 U3q (6.7.0-19300125) from SDDC Manager.
3. Continue with remaining upgrades via SDDC Manager.

Note: U3o can also be applied out of band to all VCs/PSCs before starting VC upgrade to U3q from SDDC Manager.