grub2-mkconfig ask for zfs

[imaginasys]

Hi,

I get the followings messages many times each time I use grub2-mkconfig :

Failed to load ZFS module stack.
Load the module manually by running 'insmod <location>/zfs.ko' as root.
Failed to load ZFS module stack.

My disk is partitionned with gpt : I have : /boot : ext2 ; EFI boot ; EFI bios; swap; /dev/sda4 is btrfs with subvolumes for / and/home ; Also I have a gentoo and a funtoo OS on 2 other btrfs subvolumes; I use the same /boot for all OS but I only use sabayon to manage it; I have the same /home for all distro with differents users ;

Absolutely no ZFS nowhere. So why would grub-mkimage want to load the zfs module ????

My OS is :

# uname -a
Linux zeus.VIDEOTRON.CA 3.12.0-sabayon #1 SMP Tue Dec 3 15:10:14 UTC 2013 x86_64 AMD A6-3400M APU with Radeon(tm) HD Graphics AuthenticAMD GNU/Linux

I have sys-boot/grub-2.00-r5 installed and I'm using KDE as WM.

Regards,

Bernard

[heindsight]

This is nothing to worry about.

To build up the grub boot menu, grub has to check all the file systems on your hard drive to look for operating systems to add to the menu. As part of this process it probes each partition to determine its file system. When grub tries to test for zfs, the kernel tries to load the zfs kernel module (because it needs it to read zfs filesystems). Since you don't have the zfs module installed, this produces an error. It's not a problem though, because you don't have a ZFS filesystem anyway and the probe continues and ends up correctly identifying your filesystems.

[imaginasys]

Thanks for the info, I was puzzled about the state of my disk partition table. I thought that grub had detected a zfs because of corruption on the disk ... Isn't any way to probe the disk some other way or not showing those errors in order to avoid confusion ? Is it just me ???

Regards,
Bernard

[tek640]

Thanks for the info, I was puzzled about the state of my disk partition table. I thought that grub had detected a zfs because of corruption on the disk ... Isn't any way to probe the disk some other way or not showing those errors in order to avoid confusion ? Is it just me ???

Regards,
Bernard

Don't worry, you are not alone . Same error for me too.

[heindsight]

Isn't any way to probe the disk some other way or not showing those errors in order to avoid confusion ?

Not that I'm aware of, unfortunately. You'll just have to learn to ignore them.

[Provia]

Thanks for the info, I was puzzled about the state of my disk partition table. I thought that grub had detected a zfs because of corruption on the disk ... Isn't any way to probe the disk some other way or not showing those errors in order to avoid confusion ? Is it just me ???

Regards,
Bernard

To solvee this problem you need to install the zfs kmod package for your kernel that, in your case, is the 3.12.

[heindsight]

To solvee this problem you need to install the zfs kmod package for your kernel that, in your case, is the 3.12.

Sure, but why install a module you don't need (especially one that taints the kernel), just to get rid of some harmless warnings?