[14:47] <nikolam> Hi, I compiled ZFS 0.9.7 for Ubuntu-next and installed it under 18.04 current. But even with that I can't mount r/w ZFS pool created back in April with illumos distro.
[14:48] <nikolam> It says it is lacking com.delphix:spacemap_v2  , that is inside OpenZFS GIT as I got info.
[14:48] <nikolam> Any pland on updating ZFS in Ubuntu to be able to handle com.delphix:spacemap_v2 ? (If it is in illumos, I bet it is in production a year before that or something..
[14:49] <nikolam> Or Ubuntu is just waiting official OpenZFS belease archive?
[14:49] <nikolam> release
[15:06] <uebera||> nikolam: spacemap_v2 is not part of 0.9.7, you'd need to use the master branch for this.
[15:07] <nikolam> uebera||, I figured that. I then wonder about debian patches in Ubuntu's package to apply. Not very compile savvy
[15:07] <uebera||> See https://github.com/zfsonlinux/zfs/blob/zfs-0.7.9/man/man5/zpool-features.5 vs. https://github.com/zfsonlinux/zfs/blob/master/man/man5/zpool-features.5
[15:12] <uebera||> nikolam: I would suggest to *not* try to cherry-pick changes from upstream and apply them to the Ubuntu package. This is asking for trouble and you would probably end up being the single person on earth with that build on your hands.
[15:12] <uebera||> What you can try is to forget about the Ubuntu specific changes and build master from upstream (people on #zfsonlinux might be able to give you a hand here).
[15:14] <uebera||> Recreating the pool might still be far easier/straight-forward if you plan to use Ubuntu for production use.
[15:18] <nikolam> Yeah uebera|| that's similar advice I got on Zol too. Also recreating pool is a goot idea, providing I first do zfs send/restore for datasets.
[15:19] <nikolam> Yet I was starting to get stubborn, realizing it's April pool on illumos and it's still not in Zol release.
[15:19] <nikolam> Thanks uebera|| !
[15:19] <uebera||> yw ;)