Fatal glibc error: CPU does not support x86-64-v2

[renich]

Hello,

It seems that livemedia-creator is running into this issue.

If I could pass -cpu host to qemu-system-<arch> this would not happen.

I looked in the documentation and couldn't find how to do this.

The command I'm using is:

sudo livemedia-creator --iso boot.iso --ks my.ks --resultdir result/ --make-iso --iso-only --vcpus=8 --ram=8192 --virt-uefi

[renich]

forgot to mention that this happens when using the CentOS Stream 9 boot.iso: https://mirror.stream.centos.org/9-stream/BaseOS/x86_64/os/images/boot.iso

[bcl]

Thanks for the report. There's currently no way to add to the qemu cmdline, but if you manually edit it you should be able to get it working. See https://github.com/weldr/lorax/blob/rhel9-branch/src/pylorax/installer.py#L179 for where it sets the machine type for UEFI.

[bcl]

Actually, I just realized that the rhel9 branch already includes -cpu host, make sure you are using v34.9.1 or later.

[renich]

Well, thank you @bcl for pointing me in the right direction. In the end, it worked just by adding:

if boot_uefi:
    ...
    qemu_cmd += ["-cpu", "host"]

This did the trick. Also, I wanted to clarify that I am trying to build a custom LiveCD for CentOS Stream 9 but from a Fedora 37 workstation. My lorax version is: lorax-37.8-1.fc37.x86_64

Thank you.

[bcl]

Ah, that would explain it. So, FYI, usually you want to use the matching distribution/release version of lorax-composer to build things. It may mostly work enough of the time when cross-building, but it isn't tested that way, and has no provisions for checking the distribution or release being built.

Also, see PR #1315 for a fix for this problem on Fedora :)