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If you receive this error when trying to build, it is because you have not imported the GPG keys used for verification.

==> ERROR: One or more PGP signatures could not be verified!

You have two options:

1) Import the two keys into your keyring. ArchWiki article. You can find the key IDs in the PKGBUILD file, in the validpgpkeys array. (recommended)

2) Alternatively, you can skip this verification by passing the --skippgpcheck argument to makepkg when building. (not recommended)

Thank you kindly for the advice Eli, it resolved my issue! I had an old version of spl-dkms kicking around for some reason, after I manually removed it with

dkms remove spl/0.7.9 --all

then the pacman install worked perfectly as usual! I have no idea how that went wrong, it looks like dkms gets confused when there are multiple versions as you suspected. Thanks again!

ps. I also have no idea why that specific version of spl was left behind? Perhaps a failed upgrade earlier. I will leave this comment in case somebody else encounters an issue that they should check what dkms modules are available.

@karcher,

AUR helpers are notoriously unreliable when it comes to handling versioned dependencies. You will not be able to partially update the zfs packages; you need to build them without installing them, then install the whole set together... (EDIT: Or alternatively, uninstall zfs-dkms in order to allow its dependencies to be updated, then reinstall the new version of zfs-dkms.)

@vanja_z,

It is impossible for the zfs module to build if the spl module is not built, but if the spl module is built, then the pacman hook will work. I do know that it works for me... without being able to troubleshoot the internal state of dkms, I cannot say more.

However, it definitely has nothing to do with dkms-sorted.

So as far as I can tell, what you're saying is happening is... not impossible, but nearly so. I don't know why the pacman hook would not work, but dkms might work if it is incorrectly and dangerously building against an old built version of spl, as the zfs-dkms build system might be fooled into thinking that the old version is sufficient.

In general, reinstalling both spl-dkms and zfs-dkms will cause the hooks to trigger again, thereby doing a dkms install for first spl, then zfs -- which should work, as you're setting it up to rebuild from scratch.

Not sure what else to say.

Hi all,

I'm getting an error during the latest update:

...
:: 3 Packages to upgrade.
3  aur/spl-dkms   0.7.12-1 -> 0.7.13-1
2  aur/zfs-dkms   0.7.12-2 -> 0.7.13-1
1  aur/zfs-utils  0.7.12-1 -> 0.7.13-1

...
loading packages...
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: installing spl-dkms (0.7.13-1) breaks dependency 'spl-dkms=0.7.12' required by zfs-dkms

Any ideas what's wrong?

I do understand that this is how the process is meant to work however it is not working on my system. My system is up to date and I have the matching version of spl-dkms (0.7.13). ZFS works fine after I manually dkms install the module. Does anybody have any ideas what could be going wrong or how to trouble shoot? Does this have something to do with the dkms-sorted package that used to exist?

That means that when dkms executed, the spl module, which is a dependency, did not yet exist for the desired kernel. This is usually impossible, as the pacman hook is supposed to respect dependency ordering to ensure spl is built first during a single transaction, and this package depends on a strictly versioned spl-dkms package.

I have been running zfs-dkms for many versions and something new has gone wrong. Installation fails with the following output:

(1/2) Install DKMS modules

==> Unable to install module zfs/0.7.13 for kernel 5.0.0-arch1-1-ARCH: Missing dependency.

If I manually install the dkms module it works,

dkms install zfs/0.7.13

...

DKMS: install completed.

Any ideas? I would like to avoid having to manually run dkms install for every kernel update.

Hey there, right now it is required to apply this patch to get it to compile 0.7.12 under kernel 4.20: https://github.com/zfsonlinux/zfs/pull/8227.diff

Here is a one-liner to apply the patch:

curl -sSL https://github.com/zfsonlinux/zfs/pull/8227.diff | sudo patch -p1 -d /usr/src/zfs-0.7.12 && sudo dkms autoinstall

@eschwartz: "Are you using some alternative packages that do not come from the AUR?" No.

I reinstalled spl-dkms, zfs-dkms and zfs-utils and then I could remove spl-utils. Thanks again!

Are you using some alternative packages that do not come from the AUR?

The spl-utils package contains some command-line tools used for running the spl module testsuite in case you are a zfsonlinux developer, whereas the zfs-utils package contains command-line tools which are actually useful to end-users in order to administrate a zfs filesystem.

As a result, I've dropped the spl-utils package altogether. If anyone wants to create a package installing these tools, they can... But you don't need it as a dependency of spl-dkms. However: you somehow have an spl-dkms package that does depend on it. It's possible that you've manually bumped the pkgver of the old package before it was updated.

Uninstalling them all and reinstalling from the AUR would fix it, but only because of the reinstall. You should just as easily be able to reinstall them without uninstalling first.

• After reinstalling spl-dkms from the AUR, it will no longer depend on the missing spl-utils package and you can safely remove it.
• If you have not rebuilt zfs-utils or zfs-dkms since I took over maintenance, you should rebuild those as well, for example in order to obtain the initcpio hook updates.

@eschwartz: thanks!

I've updated to the latest version but now when I try to update I see this:

$ aurman -Su --always_edit --show_changes --solution_way                                   
:: Starting full system upgrade...
there is nothing to do

~~ initializing aurman...
~~ the following packages are neither in known repos nor in the aur
:: spl-utils-0.7.11-1
~~ calculating solutions...
:: nothing to do... everything is up to date

and when I try to remove spl-utils:

$ aurman -R spl-utils         
checking dependencies...
error: failed to prepare transaction (could not satisfy dependencies)
:: spl-dkms: removing spl-utils breaks dependency 'spl-utils=0.7.11-1'

or with the dependencies:

$ aurman -Rc spl-utils                                          
checking dependencies...

Packages (4) spl-dkms-0.7.11-1  zfs-dkms-0.7.11-2  znapzend-0.19.0-1  spl-utils-0.7.11-1

Total Removed Size:  14.46 MiB

:: Do you want to remove these packages? [Y/n] n

Should I remove them all and reinstall zfs-dkms? Or what else can I do to fix it?