Zfs: CentOS 8.1 kmod packages missing

[rgessner]

System information

Type | Version/Name
--- | ---
Distribution Name | CentOS
Distribution Version | 8.1.1911
Linux Kernel | 4.18.0
Architecture | x86_6
ZFS Version | 0.8.2
SPL Version |

Describe the problem you're observing

Installing zfs-kmod package fails on CentOS 8.1.1911.
Furthermore working Centos8 zfs systems fail to work after update to 8.1.

Describe how to reproduce the problem

• Install fresh Centos 8.1
• install zfs repo
• switch to zfs-kmod repo
• run "dnf install zfs"

or

• Update working CentOS 8 system with zfs (dnf update)
• reboot

Include any warning/errors/backtraces from the system logs

Fresh install:

# dnf install zfs
Last metadata expiration check: 11:13:19 ago on Fri 17 Jan 2020 01:58:40 PM CET.
Error: 
 Problem: package zfs-0.8.2-1.el8.x86_64 requires zfs-kmod = 0.8.2, but none of the providers can be installed
  - conflicting requests
  - nothing provides kernel(__remove_inode_hash) = 0x8b7a4ec8 needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(clear_inode) = 0x05ef95a0 needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(clear_nlink) = 0x51b31641 needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(current_time) = 0x79e296fb needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_add_ci) = 0xee0c1e0d needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_instantiate) = 0xa5b7f5db needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_invalidate) = 0x84984326 needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_make_root) = 0x0297e905 needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_obtain_alias) = 0xa56bdac4 needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_prune_aliases) = 0x91edc70b needed by kmod-zfs-0.8.2-1.el8.x86_64
  - nothing provides kernel(d_set_d_op) = 0xd41942ad needed by kmod-zfs-0.8.2-1.el8.x86_64

[...]

Update from CentOS8:

# /sbin/modprobe zfs
modprobe: FATAL: Module zfs not found in directory /lib/modules/4.18.0-147.3.1.el8_1.x86_64

[StephenDart]

I can also confirm this is not working, tried on a fresh Centos8.1
The el8_1 rpm is showing on the downloads but it doesnt have any metadata for the repo so doesnt work yet, so i am guessing the packages for 8.1 arent fully built yet.
Will watch and see if its released soon.

[markusdd]

nooooooo ... just found that. Just ran the 8.1 update because teh release package is there....
Now I cannot mount my tank...

[rgessner]

nooooooo ... just found that. Just ran the 8.1 update because teh release package is there....
Now I cannot mount my tank...

Just boot the last working kernel via the grub boot menu.

[theinfinityproject]

Any eta on this?
Furthermore what is to do for those who already have upgraded to Centos 8.1 if package finally arrives?

[tvtue]

+1 from here.

[markusdd]

nooooooo ... just found that. Just ran the 8.1 update because teh release package is there....
Now I cannot mount my tank...

Just boot the last working kernel via the grub boot menu.

That is not guaranteed to work depending on what else you have installed. Actually my general observation with RHEL/CentOS is that older kernels do not work anymore after a major step like 8.0 to 8.1.

[theinfinityproject]

nooooooo ... just found that. Just ran the 8.1 update because teh release package is there....
Now I cannot mount my tank...

Just boot the last working kernel via the grub boot menu.

That is not guaranteed to work depending on what else you have installed. Actually my general observation with RHEL/CentOS is that older kernels do not work anymore after a major step like 8.0 to 8.1.

I can confirm it works (booting old kernel on a standard centos installation)

[behlendorf]

We expect to release packages for 8.1 in the next week or so. Thanks for your patience.

[theinfinityproject]

We expect to release packages for 8.1 in the next week or so. Thanks for your patience.

Thanks for the update. A question @behlendorf : For those who are already on 8.1; a simple update will do or smth like a purge and reinstall will have to take place?

[markusdd]

Thanks for the ETA. Anyway you should take down the release package so other people do not step into the same trap :D

[behlendorf]

A new release package will be posted for 8.1 once the repository is ready. After switching to the new release package an upgrade should work, as will a purge and clean install.

[StephenDart]

Just noticed that the zfs-release.el8_1.noarch.rpm was now listed on the wiki.
I have just installed it and all looks good. Zfs installed with no broken dependancies and i can create a pool and datasets. Zfs version is 0.8.3.1
Thanks to the devs for creating and building this.

Type | Version/Name
-- | --
Distribution Name | CentOS
Distribution Version | 8.1.1911
Linux Kernel | 4.18.0-147.3.1.el8_1
Architecture | x86_64
ZFS Version | 0.8.3.1

[tvtue]

I did a yum update on a centos 7.7 and it worked.
I also did a rpm -Uvh on the rpm file of the repo on a centos 8.1 system. And afterwards a yum update. That also worked.

Thank for very much providing an updated version.