Bugzilla – Bug 1217399
[doc] Issue in "Secure boot"
Last modified: 2023-12-14 10:04:00 UTC
Secure boot: https://susedoc.github.io/doc-sle/main/single-html/SLES-deployment/#sec-zseries-prep-secure-boot Secure boot is possible since z/VM 7.3 on z/VM virtualization level. Requirements is to have these updated too: The MCLs for the Support Elements (Bundle S82s) and HMCs (Bundle H54). Note: we didn't test it yet, but according IBM, it should work under these conditions.
The official documentation https://www.ibm.com/docs/en/SSB27U_7.3.0/pdf/hcpk4_v7r3.pdf page xiii.
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We usually only document what has undergone QA or at least some smoke testing. Additionally, I don't have access to Z hardware, so I very much rely on your input here. I think the first step would be to have some test and briefly document it before I can document it according to our standards. Can you provide me with some input and/or a contact person?
I did not try secure boot on zVM 7.3. I had only statement from IBM that it supports it, but they did not provide yet zVM 7.3, only 7.2. So I did not have my hands on secure boot on zVM.
We weren't able to verify secure boot as we found out the secure boot on z/VM runs only on the latest machine, which we don't have. Linux ONE IV (z16). I'm not sure if we need to update docs after these findings :-/
Let's close it until z16 are more common.