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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)

Hi. I'm installing arch on zfs root. I've done this before in other systems. The build is failing with

configure: error:
        *** None of the expected "global page state" interfaces were detected.
        *** This may be because your kernel version is newer than what is
        *** supported, or you are using a patched custom kernel with
        *** incompatible modifications.
        ***
        *** ZFS Version: zfs-2.2.4-1
        *** Compatible Kernels: 3.10 - 6.8


Building module:
Cleaning build area...(bad exit status: 2)
make -j22 KERNELRELEASE=6.6.50-1-lts...(bad exit status: 2)
Error! Bad return status for module build on kernel: 6.6.50-1-lts (x86_64)
Consult /var/lib/dkms/zfs/2.2.4/build/make.log for more information.

The actual error is not in make.log but in config.log

/usr/bin/env: 'perl': No such file or directory
configure:61462: $? = 1
configure:61475: result: no
configure:61483: checking whether global_page_state enums are sane
configure:61515: result: no
configure:61517: result: NR_FILE_PAGES in either node_stat_item or zone_stat_item: NOT FOUND
configure:61520: error:
        *** None of the expected "global page state" interfaces were detected.
        *** This may be because your kernel version is newer than what is
        *** supported, or you are using a patched custom kernel with
        *** incompatible modifications.
        ***
        *** ZFS Version: zfs-2.2.4-1
        *** Compatible Kernels: 3.10 - 6.8

So perl is needed during dkms install, but on a fresh system it is not installed. After installing perl package, the problem is fixed.

Probably, adding perl as a dependency is a good idea.

@kstolp,

Thank you for updating zfs-dkms and zfs-utils. Can confirm both build, install and operate correctly against linux, -hardened and -zen, all of which are 6.10.X.

Cheers

ZFS 2.2.6, with support for the Linux kernel 6.10, has been released.

@andreas303 - my source points to /usr/src/zfs-2.2.5 :

[stuart@endeavour ~]$ ll /var/lib/dkms/zfs/2.2.5
total 4.0K
drwxr-xr-x 1 root root 12 Aug 23 23:33 6.6.47-1-lts
drwxr-xr-x 1 root root 12 Aug  8 00:43 6.9.10-hardened1-1-hardened
lrwxrwxrwx 1 root root 18 Aug  8 00:02 source -> /usr/src/zfs-2.2.5

[stuart@endeavour ~]$ ll /usr/src/zfs-2.2.5
total 4.3M
drwxr-xr-x 1 root root  134 Aug  8 00:02 config
drwxr-xr-x 1 root root  482 Aug  8 00:02 include
drwxr-xr-x 1 root root  140 Aug  8 00:02 module
drwxr-xr-x 1 root root   58 Aug  8 00:02 scripts
-rwxr-xr-x 1 root root 3.2M Aug  7 07:22 configure
-rw-r--r-- 1 root root 1.3K Aug  7 07:22 dkms.conf
-rw-r--r-- 1 root root 1.1M Aug  7 07:22 Makefile.in
-rw-r--r-- 1 root root  197 Aug  7 07:22 META
-rw-r--r-- 1 root root  30K Aug  7 07:22 zfs_config.h.in
-rw-r--r-- 1 root root   38 Aug  7 07:22 zfs.release.in

• When I've had problems building in the past it's usually a bad symlink under /var/lib/dkms/zfs - or possibly an old kernel under /lib/modules messing things up.

• I use the compiled zfs-dkms from EndeavourOS & arch-sign-modules from AUR to sign out of tree modules like zfs:

stuart@endeavour ~]$ ls /lib/modules/6.6.47-1-lts/updates/dkms/
lkrg.ko.zst        nvidia.ko.zst          nvidia-peermem.ko.zst  spl.ko.zst
nvidia-drm.ko.zst  nvidia-modeset.ko.zst  nvidia-uvm.ko.zst      zfs.ko.zst

[stuart@endeavour ~]$ modinfo /lib/modules/6.6.47-1-lts/updates/dkms/zfs.ko.zst 
filename:       /lib/modules/6.6.47-1-lts/updates/dkms/zfs.ko.zst
version:        2.2.5-1

• If you rm -rf /var/lib/dkms/zfs & reinstall zfs-dkms / zfs-utils & try again the modules will probably build. Alternatively try my method.

I installed zfs-dkms with aurutils. However, I get the following error.

# dkms install --no-depmod zfs/2.2.5 -k 6.6.47-1-lts
Sign command: /usr/lib/modules/6.6.47-1-lts/build/scripts/sign-file
Signing key: /var/lib/dkms/mok.key
Public certificate (MOK): /var/lib/dkms/mok.pub
Error! The directory /var/lib/dkms/zfs/2.2.5/source does not appear to have module source located within it.
Build halted.

This is strange, because the contents of the directory actually seems to contain source code:

# ls -al /var/lib/dkms/zfs/2.2.5/source/
total 4348
drwxr-xr-x  6 root root    4096 2024-08-29 20:28 ./
drwxr-xr-x  4 root root    4096 2024-08-29 20:28 ../
drwxr-xr-x  2 root root    4096 2024-08-29 20:28 config/
drwxr-xr-x  4 root root    4096 2024-08-29 20:28 include/
drwxr-xr-x 11 root root    4096 2024-08-29 20:28 module/
drwxr-xr-x  2 root root    4096 2024-08-29 20:28 scripts/
-rwxr-xr-x  1 root root 3253101 2024-08-29 20:27 configure*
-rw-r--r--  1 root root    1269 2024-08-29 20:27 dkms.conf
-rw-r--r--  1 root root 1124636 2024-08-29 20:27 Makefile.in
-rw-r--r--  1 root root     197 2024-08-29 20:27 META
-rw-r--r--  1 root root   30349 2024-08-29 20:27 zfs_config.h.in
-rw-r--r--  1 root root      38 2024-08-29 20:27 zfs.release.in

Other info:

# dkms status
zfs/2.2.5: added

Any ideas about what the problem is? I'm totally lost in this situation. :-/ What's the contents of your /var/lib/dkms/zfs/2.2.5/source directory?

Yeah, for now safe bet (as per usual) is an LTS kernel.

@korimitsu: The latest ZFS release (zfs-2.2.5) only officially supports the Linux kernel up to 6.9.

You'll have to wait for the next release for 6.10 support.

Fails to compile:

paru -S linux-headers
warning: linux-headers-6.10.3.arch1-2 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (1) linux-headers-6.10.3.arch1-2

Total Download Size:    25.93 MiB
Total Installed Size:  131.47 MiB
Net Upgrade Size:        0.00 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 linux-headers-6.10.3.arch1-2-x86_64                                                                               25.9 MiB  18.1 MiB/s 00:01 [#######################################################################################] 100%
(1/1) checking keys in keyring                                                                                                                [#######################################################################################] 100%
(1/1) checking package integrity                                                                                                              [#######################################################################################] 100%
(1/1) loading package files                                                                                                                   [#######################################################################################] 100%
(1/1) checking for file conflicts                                                                                                             [#######################################################################################] 100%
(1/1) checking available disk space                                                                                                           [#######################################################################################] 100%
:: Running pre-transaction hooks...
(1/1) Remove upgraded DKMS modules
==> dkms remove --no-depmod vmware-workstation/17.5.2_23775571 -k 6.10.3-arch1-2
:: Processing package changes...
(1/1) reinstalling linux-headers                                                                                                              [#######################################################################################] 100%
:: Running post-transaction hooks...
(1/3) Arming ConditionNeedsUpdate...
(2/3) Updating module dependencies...
(3/3) Install DKMS modules
==> dkms install --no-depmod vmware-workstation/17.5.2_23775571 -k 6.10.3-arch1-2
==> dkms install --no-depmod zfs/2.2.4 -k 6.10.3-arch1-2
configure: error: 
        *** None of the expected "blk_queue_max_hw_sectors" interfaces were detected.
        *** This may be because your kernel version is newer than what is
        *** supported, or you are using a patched custom kernel with
        *** incompatible modifications.
        ***
        *** ZFS Version: zfs-2.2.4-1
        *** Compatible Kernels: 3.10 - 6.8

Error! Bad return status for module build on kernel: 6.10.3-arch1-2 (x86_64)
Consult /var/lib/dkms/zfs/2.2.4/build/make.log for more information.
==> WARNING: `dkms install --no-depmod zfs/2.2.4 -k 6.10.3-arch1-2' exited 10
==> depmod 6.10.3-arch1-2

This should check if linux-headers is installed. https://pastebin.com/XnqV67mv