Tried it again, it just breaks the boot. After a lot of firefighting found that elrepo kernel-lt doesn't have `xfs` in initramfs image and it fails mounting the lvm which uses xfs # lsinitrd /boot/initramfs-4.18.0-240.1.1.el8_3.x86_64.img | grep xfs.ko -rw-r--r-- 1 root root 442760 Aug 11 2020 usr/lib/modules/4.18.0-240.1.1.el8_3.x86_64/kernel/fs/xfs/xfs.ko.xz Tested kernel-ml and it has the needed xfs module After installing the new kernel, I needed to copy over the "options" line from /boot/loader/entries/ovirt*.conf to the new one. Hope this saves a lot of hair pulling for someone. On Tue, Feb 9, 2021 at 7:23 PM Matthew.Stier@fujitsu.com < Matthew.Stier@fujitsu.com> wrote:

‘Node’ images are just minimal CentOS plus all the packages for this release, in a sub-DVD sized ISO. Once it is installed, the operating system is still CentOS, and can be patched/modified, including installing alternative kernels.

If it fails, boot back to the original kernel, and remove the package from Elrepo, or at worse, re-install.

*From:* Shantur Rathore <rathore4u@gmail.com> *Sent:* Tuesday, February 9, 2021 11:11 AM *To:* Stier, Matthew <Matthew.Stier@fujitsu.com>; users <users@ovirt.org> *Subject:* Re: [ovirt-users] Newer kernel for oVirt Node NG

Thanks Matthew,

Are you sure about this?

I thought oVirt Node NG images are immutable

On Tue, Feb 9, 2021 at 3:42 PM Matthew.Stier@fujitsu.com < Matthew.Stier@fujitsu.com> wrote:

Elrepo.org

*From:* Shantur Rathore <rathore4u@gmail.com> *Sent:* Tuesday, February 9, 2021 9:28 AM *To:* users <users@ovirt.org> *Subject:* [ovirt-users] Newer kernel for oVirt Node NG

Hi oVirt Users,

I am trying to test some vfio related stuff on oVirt Node NG 4.4.4 based host.

What would be the easiest way to have a 5.x kernel on this node?

I don't mind compiling if it needs to.

Cheers,

Shantur