On Du, 14 mar 21, 10:58:02, Victor Sudakov wrote: > Andrei POPESCU wrote: > > On Vi, 12 mar 21, 09:21:59, Victor Sudakov wrote: > > > > > > The problem is that /dev/nvme1n1 is being used for ZFS now, and there is > > > currently no btrfs thereon. However, there is a btrfs label or something > > > stuck somewhere, how can I clear it? > > > > [...] > > > > > It's somewhere on disk, but where? > > > > > > # blkid | grep nvme1n1 > > > /dev/nvme1n1: UUID="38f74bc8-465d-4866-8ec1-3a144741012c" > > > UUID_SUB="ada72e33-4467-4413-b78a-1a2392f62e62" TYPE="btrfs" > > > PTUUID="d73a33f2-2b34-e64b-bc66-128320256a28" PTTYPE="gpt" > > > > Look again ;) > > Beats me! > > In what disk structure can this signature of type "btrfs" reside? > The name "nvme1n1" is for the whole disk even, not for a partition thereof.
I'm guessing it's in the GPT somewhere. Did you try removing the entire partition table before switching to ZFS? By the way, I see the man page for blkid recommends to use lsblk instead and points to wipefs to erase obsolete magic strings from the device (which you did eventually). Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser
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