November 29, 20187 yr I would like to build a secondary RAID1 pool with drives outside of the array. When I try to wipe one of the two drives it is refused. The drive once was part of Unassigned Devices. I did unmount it so it should be free to be wiped and formatted. But this does not work. How can I wipe that disk and reformat it with BTRFS? Many thanks in advance. root@Tower2:~# wipefs /dev/sdf DEVICE OFFSET TYPE UUID LABEL sdf 0x200 gpt sdf 0x2baa1475e00 gpt sdf 0x1fe PMBR root@Tower2:~# wipefs --all /dev/sdf wipefs: error: /dev/sdf: probing initialization failed: Device or resource busy ***EDIT***: Found it. Had to delete the partition from within Unassigned Devices plugin first. Edited November 29, 20187 yr by hawihoney
August 1, 20223 yr I just came across this thread looking for this exact answer. If it helps in the future: here's a video that walks through the process:
August 1, 20223 yr Community Expert Note that the original post and the linked video are more than 3 years old, before multiple pools were introduced in 6.9
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