DOKK / manpages / debian 11 / ostree / ostree-admin-pin.1.en
OSTREE ADMIN PIN(1) ostree admin pin OSTREE ADMIN PIN(1)

ostree-admin-pin - Explicitly retain deployment at a given index

ostree admin pin {INDEX}

Ensures the deployment at INDEX, will not be garbage collected by default. This is termed "pinning". If the -u option is provided, undoes a pinning operation.

--unpin,-u

Undoes a pinning operation.
OSTree