I'm running 17.04 on a zfs root. While running update-initramfs I receive a warning that may have no impact but I would look to be sure, and report upstream if the issue is not on my side. Is anyone having the same behavior ?

$ sudo update-initramfs -c -k all 
update-initramfs: Generating /boot/initrd.img-4.10.0-15-generic
Warning: /sbin/fsck.zfs_member doesn't exist, can't install to initramfs, ignoring.

There is no fsck for ZFS. So fsck has to be ignored.

ZFS-partitions are identified as zfs_member (to verify run sudo lsblk -l or sudo blkid). update-initramfs wants to install the appropriate fsck. That is not possible.

By the way: You can start a deep check for a ZFS-pool manually using sudo zpool scrub MyPoolName.

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