Formatted a ZFS drive to NTFS (as a storage drive for W10), just tried to mount it from Ubuntu and got "zfs_member" error?

[EvanVanVan]

Yeah, as the topic says I tried to mount it in Ubuntu and received this error: Error mounting: unknown filesystem type 'zfs_member' But it's an NTFS drive now, is there a flag or something I need to change? Obviously I just did a quick format, I didn't zero the drive or anything.

Thank you

 

[danb35]

Windows is pretty brain-dead when it comes to GPT partition tables. Most likely it didn't complete erase that one, and that's what Ubuntu is seeing. But why reformat to NTFS, just to take it to Ubuntu? U will do ZFS just fine.

 

[EvanVanVan]

Thank you. I went with NTFS because it's really only being used in Windows. It's just once in a while that I dual boot into Ubuntu and it'd be convenient to be able to access it. Anyway, I'll give formatting it another shot. Thanks!

 

[Jailer]

There's likely still a backup table at the end of the drive. Try running zpool labelclear and see if that resolves it.

 

[Chris Moore]

You may need to use the Microsoft diskpart command from the command line to delete the partition table on the drive.
Be careful with that though.

 

[EvanVanVan]

There's likely still a backup table at the end of the drive. Try running zpool labelclear and see if that resolves it.

I gave that a shot in Ubuntu, but it wanted a vdev argument and I wasn't sure how to determine that since it was no longer in a pool?

You may need to use the Microsoft diskpart command from the command line to delete the partition table on the drive.
Be careful with that though.

This ended up working (I thought I had used diskpart and cleaned the disk the first time I formatted it though). I ended up formatting it a second time to NTFS in Ubuntu, but when I booted into Windows it was still showing up as Unallocated for some reason. I diskpart>cleaned+formatted it a third time, and now it's working properly in both Windows and Ubuntu. Idk, just glad it works!

Thanks guys