How to restore LVM snapshot
list of logical volumes (find your snapshot)
# sudo lvscan
output:
ACTIVE Original '/dev/debian-group/main' [50.00 GiB] inherit
ACTIVE Snapshot '/dev/debian-group/backup01' [50.16 GiB] inherit
/dev/debian-group/backup01 is a snapshot of /dev/debian-group/main
merge lvm snapshot with source partition
# sudo lvconvert --main /dev/debian-group/backup01
if your source partition is in use,then changes will be applied on next reboot or next mount of source partition.
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