On 2020-05-05 10:10, linux guy wrote:
# lvreduce -L 6G /dev/mapper/fedora_localhost--live-home
WARNING: Reducing active and open logical volume to 6.00 GiB.
THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce fedora_localhost-live/home? [y/n]:
Is lvreduce smart, ie does it know not to touch existing data ?
FWIW, I generally use lvresize and only on unmounted file-systems.
I'm pretty much sure that is what the warning is trying to tell you.
Having an active filesystem during a resize operation sounds dangerous to me.
(I've not used LV's much recently)
--
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