Hey all,
The upcoming community Ceph container images will be based on CentOS 9.
In our Clyso CI testing lab we learned that el9-based images won't run
on some (default) qemu VMs. Where our el8-based images run well, our
new el9-based images get:
error during bootstrap: Fatal glibc error: CPU does not support x86-64-v2
This is because RHEL 9 (and clones) added a hard requirement on x86-64-v2:
* https://srobb.net/rhel9.html
* https://forums.rockylinux.org/t/el9-will-require-x86-64-v2-support/5311
* https://developers.redhat.com/blog/2021/01/05/building-red-hat-enterprise-linux-9-for-the-x86-64-v2-microarchitecture-level
* https://access.redhat.com/solutions/6833751
The reason for the failure in our testing is that some of our virtual
nodes use qemu's default CPU emulation (qemu64), which does not
support x86-64-v2. The solution for these nodes is to switch to "host"
or something else listed at
https://www.qemu.org/docs/master/system/i386/cpu.html
I would encourage cephadm/Rook users with daemons on VM hosts to
verify their CPU modes on their VMs prior to any upgrades, and make
the necessary changes to the hypervisor configuration ahead of time.
Best,
Dan
--
Dan van der Ster
CTO
Clyso GmbH
p: +49 89 215252722 | a: Vancouver, Canada
w: https://clyso.com | e: dan.vanderster@xxxxxxxxx
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