Hello Dale,this also happens to me sometimes and the culprit was an open process still accessing the hard drive. Maybe you can solve it like this:
$ lsof /mnt/8tb zsh 8390 root cwd DIR 253,2 4096 27787265 /mnt/8tb $ kill 8390 $ lsof /mnt/8tb After that, you should be able to close the drive via "cryptsetup". -Ramon On 14/06/2021 06:50, Dale wrote:
root@fireball / # cryptsetup close 8tb Device 8tb is still in use. root@fireball / # mount | grep 8tb root@fireball / #
-- GPG public key: 5983 98DA 5F4D A464 38FD CF87 155B E264 13E6 99BF
OpenPGP_signature
Description: OpenPGP digital signature
