[CentOS] ZFS fails with C7 957

[Akemi Yagi]

On Thu, Dec 6, 2018 at 3:23 PM Jonathan Billings <billings at negate.org> wrote:
>
> On Dec 6, 2018, at 17:45, david <david at daku.org> wrote:
> >
> > Folks
> >
> > I have two USB connected drives, configured as a mirrored-pair in ZFS.  It's been working fine UNTIL I updated Centos
> > from 3.10.0-862.14.4.el7.x86_64
> >  to 3.10.0-957.1.3.el7.x86_64
> >
> > The import of the pools didn't happen at boot.  When I tried executing:
> > zpool list
> > I got the diagnostic suggesting I do /sbin/modprobe zfs
> > And that command claimed the module didn't exist.
>
> You need to go wherever you got your ZFS kernel module and rebuild it for the kernel included in CentOS 7.6.1810. I had to rebuild several of my kmods for the -957 kernels too. If you use a kmod that relies on kernel symbols that are not on the kabi whitelist, you need to rebuild the kmod for every minor release, and probably several times mid release.

If you get the ZFS from the zfs.repo, they just published the EL7.6 package:

https://github.com/zfsonlinux/zfs/wiki/RHEL-and-CentOS

Akemi