vxRail upgrade attempt from 8.0.214 to 8.0.33 fails with the error "Upgrade sequence is currently unavailable".
The patch plan validation will still be shown as successful.
However, upon clicking "confirm" button it will present the message as below.
VCF 5.2.x
For VxRail builds on 8.x versions from 8.0.214 onwards, the earliest upgrade path on 8.x is 8.0.330, which is a patch on top of VCF 5.2.1.2. As there is no VCF release that can be upgraded to before applying a VxRail patch, there will be no forward upgrade shown for VxRail 8.x versions from 8.0.214 onwards.
/var/log/vmware/vcf/lcm/lcm-debug.log:
YYYY-MM-DDThh:mm:ss.zzz+0000 WARN [vcf_lcm,xxxxxxxxxxxxxxxxxxxxxxxxxx,8f44,upgradeSpec={"bundleType":"VXRAIL","bundleId":"VXRAIL8-0-330-290816047F20G_VxRail-8-0-330-Composite-Upgrade-Slim-Package-for-8-0-x-zip","scheduledTime":0,"upgradeNow":true,"expectedEndTime":0,"slaType":"SLOW","vcenterIds":["<vCenter_ID>"],"userInputSpec":{"version":1,"userInputs":[{"bundleElementSoftwareType":"VXRAIL","description":"Migration based upgrade","userInputElements":[{"type":"StringList","label":"upgradeClusters","value":"<clsuter_id>","description":"List of Cluster ID for cluster to be upgraded."}]}]}}] [c.v.e.s.l.s.impl.UpgradeServiceImpl,http-nio-127.0.0.1-7400-exec-2] Selected bundle VXRAIL8-0-330-290816047F20G_VxRail-8-0-330-Composite-Upgrade-Slim-Package-for-8-0-x-zip not available for upgrade on the given domains
YYYY-MM-DDThh:mm:ss.zzz+0000 ERROR [vcf_lcm,xxxxxxxxxxxxxxxxxxxxxxxxxx,8f44] [c.v.e.s.l.a.r.c.u.UpgradeController,http-nio-127.0.0.1-7400-exec-2] In UpgradeController, failed to post upgradecom.vmware.evo.sddc.lcm.model.error.LcmException: Selected bundle VXRAIL8-0-330-290816047F20G_VxRail-8-0-330-Composite-Upgrade-Slim-Package-for-8-0-x-zip not available for upgrade on the given domainsat com.vmware.evo.sddc.lcm.services.impl.UpgradeServiceImpl.validateUpgradeSpec(UpgradeServiceImpl.java:496)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
Follow the workaround quoted in the below KB
Enable upgrade of VxRail 8.x releases from 8.0.214 onwards to an 8.y patch release using FlexBOM