On 21/11/13 22:44, Christoph Egger wrote: > base feature at async_destroy enabled local > base feature at empty_bpobj enabled local > base feature at lz4_compress enabled local That's zpool version 5000? See http://bugs.debian.org/730143 A fix is pending for GRUB 2.00-21? Regards, -- Steven Chamberlain steven at pyro.eu.org