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On my way to prepare to RHCSA exam I found the below question:
***** Reduce /home LVM partition to be 800 M without losing data.
I already can use this command
lvresize -L 800MB /home
But it should destroy its contents,I donít know how to reduce an LVM without losing its contents!
[root@Client01 ~]# lvresize -L 800MB /dev/VG01/LV01
WARNING: Reducing active and open logical volume to 800.00 MiB
THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce LV01? [y/n]: y
Reducing logical volume LV01 to 800.00 MiB
Logical volume LV01 successfully resized