Removing the old

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sudo rmmod zfs
2
sudo rmmod spl

1
rm -rf /lib/modules/$(uname -r)/kernel/zfs/

Dependencies

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apt -y install build-essential autoconf libtool gawk alien fakeroot linux-headers-$(uname -r)
2
apt -y install zlib1g-dev uuid-dev libattr1-dev libblkid-dev libselinux-dev libudev-dev
3
apt -y install parted lsscsi ksh
4
apt -y install autoconf git libdevmapper-dev

ZFS

We just want the kernel because the userspace tool from Ubuntu is sufficient for now.

Let’s download the sources:

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git clone https://github.com/zfsonlinux/spl
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git clone https://github.com/zfsonlinux/zfs

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cd spl

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./autogen.sh
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./configure --prefix=/usr --with-config=kernel
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make -j$(nproc)
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sudo make install

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cd ../zfs

1
./autogen.sh
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./configure --prefix=/usr --with-config=kernel
3
make -j$(nproc)
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sudo make install

Done

We can restart for better, or we can reload:

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sudo modprobe zfs

IFs

Sometimes life gives you lemon, find out what’s wrong with making sure that you are loading the right kernel

1
sudo modinfo zfs

This made me frustrated in the past. I just realized at some point that the kernel was still in bed with the old ZFS kernel module.